Academic literature on the topic 'Breede River'
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Journal articles on the topic "Breede River"
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Kirchner, J., J. H. Moolman, H. M. du Plessis, and A. G. Reynders. "Causes and Management of Salinity in the Breede River Valley, South Africa." Hydrogeology Journal 5, no. 1 (January 1997): 98–108. http://dx.doi.org/10.1007/s100400050126.
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Flügel, Wolfgang-Albert. "River Salination Due to Non-Point Contribution of Irrigation Return Flow in the Breede River, Western Cape Province, South Africa." Water Science and Technology 28, no. 3-5 (August 1, 1993): 193–97. http://dx.doi.org/10.2166/wst.1993.0420.
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DUNCAN, GRAHAM. "Two new species, two rediscoveries and a range extension in Lachenalia (Asparagaceae: Scilloideae) from southern and western South Africa." Phytotaxa 316, no. 3 (August 8, 2017): 261. http://dx.doi.org/10.11646/phytotaxa.316.3.5.
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Two recently discovered species of Lachenalia from South Africa, Lachenalia barbarae from the Overberg district of the Western Cape and Lachenalia adamii from the Bokkeveld escarpment of the Northern Cape, are described. In addition, details of the rediscovery of two species previously thought to be possibly extinct in the wild, Lachenalia martleyi from the Overberg district in the Western Cape and Lachenalia macgregoriorum from the Bokkeveld plateau in the Northern Cape, are provided, as well as a range extension for the critically endangered Lachenalia moniliformis from the Breede River Valley in the Western Cape.
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Lowe, SR, and PH Skelton. "First record of sound production by a South African minnow, Pseudobarbus burchelli (Teleostei: Cyprinidae), the Breede River redfin." African Journal of Aquatic Science 33, no. 3 (December 2008): 287–89. http://dx.doi.org/10.2989/ajas.2008.33.3.14.626.
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Zietsman, J., L. L. Dreyer, and L. Mucina. "Floristic links between the West Coast and South Coast (South Africa) — Is the Breede River Valley a migration route?" South African Journal of Botany 74, no. 2 (April 2008): 392. http://dx.doi.org/10.1016/j.sajb.2008.01.167.
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Krige, J., L. L. Dreyer, and L. Mucina. "Floristic links between the West Coast and South Coast (South Africa) - is the Breede River Valley a migration route?" South African Journal of Botany 75, no. 2 (April 2009): 408. http://dx.doi.org/10.1016/j.sajb.2009.02.071.
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Turpie, JK, and JR Goss. "Potential impacts of alternative regulatory interventions on the recreational value of angling on the Breede River estuary, South Africa." African Journal of Marine Science 36, no. 3 (July 3, 2014): 399–408. http://dx.doi.org/10.2989/1814232x.2014.959054.
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Nyam, Y. S., J. H. Kotir, A. J. Jordaan, and A. A. Ogundeji. "Developing a Conceptual Model for Sustainable water Resource Management and Agricultural Development: the Case of the Breede River Catchment Area, South Africa." Environmental Management 67, no. 4 (January 11, 2021): 632–47. http://dx.doi.org/10.1007/s00267-020-01399-x.
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Shelton, Jeremy M., Matthew S. Bird, Michael J. Samways, and Jenny A. Day. "Non-native rainbow trout (Oncorhynchus mykiss ) occupy a different trophic niche to native Breede River redfin (Pseudobarbus burchelli ) which they replace in South African headwater streams." Ecology of Freshwater Fish 26, no. 3 (July 16, 2016): 484–96. http://dx.doi.org/10.1111/eff.12293.
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Rangel-Serpa, Federico, and Mauricio Torres. "Reproductive seasonality of Geophagus steindachneri Eigenmann & Hildebrand, 1922 (Perciformes: Cichlidae) in a tropical mountain river." Neotropical Ichthyology 13, no. 2 (June 2015): 421–30. http://dx.doi.org/10.1590/1982-0224-20140091.
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Reproductive seasonality in tropical freshwater fishes is strongly influenced by rainfall. In lowlands, floods spill laterally to floodplains and fishes usually breed during the flooding season. In mountain rivers, floods are sudden and flush out aquatic organisms. Fishes in mountain rivers usually breed during dry seasons, what has been hypothesized as a strategy to reduce mortality due to strong floods. If that is the case, mouth-brooding fishes should suffer less from strong floods and should have more prolonged breeding seasons in mountain rivers. Here we investigated the breeding activity of a mouth-brooding cichlid (Geophagus steindachneri) in a mountain river in Colombia using three kinds of evidence: monthly variation of gonad weight, macroscopic and histological observations of the gonads, and occurrence of mouth-brooding females. Analysis was made on adults captured monthly throughout a year. The results indicate that G. steindachneri breeds during the dry season in the mountain river studied. Female mouth brooding was related with a halt in the maturation of their ovaries. Other factors than the flushing-out effect of floods on offspring may be determining dry-season breeding of fishes in tropical mountain rivers.
Dissertations / Theses on the topic "Breede River"
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Raath, Gideon. "The impact of high rainfall and flood events on Eucalyptus camaldulensis distribution along the central Breede River." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97021.
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Thesis (MSc)--Stellenbosch University, 2015.ENGLISH ABSTRACT: Eucalyptus camaldulensis Dehnh., or River Red Gum, is a commercially valuable yet recognised invasive alien plant (IAP) of riparian zones throughout South Africa. The invasive potential of E. camaldulensis is widely recognised, with specific regulations aimed at the management of E. camaldulensis. E. camaldulensis is known to use large amounts of water, reduce biodiversity, change river morphology and impact hydrological regimes of rivers. In the native range throughout Australia, E. camaldulensis displays a distinct relationship between rainfall, and flood events, for seed dispersal, germination and establishment, and consequently spatial extent, yet little is known about the relationships in the South African context. The aim of this project was to assess the impact of high rainfall and flood events on the establishment and distribution of E. camaldulensis along the Middle Breede River, between Worcester and Swellendam in the Western Cape, by establishing the current spatial extent of E. camaldulensis along the river, identifying flood events since 1950 and evaluating the impact rainfall and flood events had on the spatial extent thereof. Aerial imagery, rainfall, discharge and river level data was obtained dating back to 1980, as well as field data comprising of GPS-bounding of E. camaldulensis stands. Additionally, density measurements were obtained and interviews conducted with land users. Spatial analysis of aerial imagery, coupled with perimeter (GPS) data and density data were used to conduct spatio-temporal analysis, employing GIS and conventional statistical approaches to address the various objectives. Results indicated E. camaldulensis stands had a small overall increase in spatial extent since 1980. Flooding and rainfall events coincided with an increase in occurrence of E. camaldulensis with elevated river levels and frequent flooding, while spatial variation of this relationship was observed. The hydrological regime of the Breede River coincides with a slow increase in spatial extent of E. camaldulensis stands, but no affirmation of a positive real-world relationship was possible using the available data. Results further suggested, based on the current age class composition, that existing stands originated roughly during 1980, possibly due to commercial forestry related seeding into the river. Reduced fragmentation between stakeholders, educational programmes and improved reporting systems were recommended for improved IAP management within the area.
AFRIKAANSE OPSOMMING: Eucalyptus camaldulensis, of Rooibloekom (RB), is ‘n waardevolle kommersiële, maar erkende indringer plantspesie (IP) wat veral oewersones in Suid-Afrika indring. Die indringerpotensiaal van E. camaldulensis is welbekend, en spesifieke regulasies, gemik op die bestuur van RB en ander spesies is reeds aangeneem. E. camaldulensis is veral bekend vir sy hoë watergebruik, sy vermindering van biodiversiteit, sy vermoë om riviervorme te verander en sy algehele impak op die hidrologiese patroon van riviere waarmee dit in aanraking kom. In sy oorspronklike verspreidingsgebied in Australië toon E. camaldulensis ‘n bepaalde verhouding tussen reënval en vloedgebeurtenisse vir saadverspreiding, ontkieming en vestiging en derhalwe die ruimtelike verspreiding van die spesie; alhoewel hierdie verhouding in die Suid-Afrikaanse konteks steeds redelik onverduidelik bly. Die doelwit van hierdie studie was dus om die impak van hoë reënval en vloedgebeurtenisse op die ruimtelike verspreiding en vestiging van E. camaldulensis teenaan die Middel Breëde Rivier, spesifiek tussen Worcester en Swellendam, te evalueer. Hierdie doelwit was bereik deur die historiese ruimtelike verspreiding teenaan die rivier te meet, hoë reënval en vloedgebeurtenisse vanaf 1980 te identifiseer, en die huidige verspreiding en omtrek met GPS te meet. Digtheidafmetings, sowel as onderhoude met belanghebbendes teenaan die rivier was ook opgeneem. Visuele interpretatasie van lugfotos, sowel as omtrek (GPS) en digtheid-data was gebruik om ruimtelike analise uit te voer, deur die gebruik van GIS en konvensionele statistiese metodes, ten einde die doelwitte te evalueer. Resultate dui aan dat E. camaldulensis areas ‘n klein algemene groei getoon het sedert 1980. Hoë-reënval en gereëlde vloedgebeurtenisse het ook gepaard gegaan met ‘n groei van E. camaldulensis oppervlak, alhoewel hierdie verhouding ruimtelike variasie getoon het, met ‘n algemene groei patroon gemerk oor die volledige studietydperk. Ook geen stimulerende verhouding kon vanuit die beskikbare data bevestig word nie. Addisionele resultate het aangedui dat die verspreiding van E. camaldulensis ongeveer 1980 onstaan het, moontlik as gevolg van kommersiële bosbou-aanplanting en verwante saadverspreiding in die rivier vanaf daardie tyd. Aanbevelings ten opsigte van verbeterde indringerbestuur sluit in die beperking van huidige fragmentasie tussen belanghebbendes en betrokke verwyderingsorganisasies, addisionele onderrigprogramme sowel as die verbetering van terugvoersisteme.
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Ismail, Shameelah. "Stakeholders’ perceptions of the impacts of an outdoor and wine festival in the Breede Valley of the Western Cape Province." Thesis, Cape Peninsula University of Technology, 2015. http://hdl.handle.net/20.500.11838/2115.
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Thesis (MTech (Tourism and Hospitality Management))--Cape Peninsula University of Technology, 2015.The Breede Valley region is located in the Cape Winelands District near Cape Town and has been identified as a wine region with vast diversity and distinctiveness. The lack of research in the field of wine and events in the area gave rise to this study. The event industry in this region is relatively unexploited but in recent years has been revealed to be a major catalyst for tourism and economic development. However, for events to act as a catalyst for tourism and economic development, it is important to have an understanding of stakeholders‟ perceptions of the impacts of these events. The research therefore focuses on stakeholders‟ perceptions of the impacts of the Breedekloof Outdoor and Wine Festival (BOWF) hosted in the Breedekloof region in the Breede Valley of the Western Cape Province. Underpinning this study was the understanding that the perceived impacts of the event are pivotal for the future planning, management and sustainability of the event as well as to minimise negative and maximise positive impacts of the BOWF. The study applied a mixed-methods approach, compiling data through survey questionnaires targeting 341 event attendees, 374 residents, 28 established businesses, 8 sponsors and 15 venue owners. Key informant interviews with the event organiser and direct observations with event attendees and residents were used as methods to collect data, using several sampling methods. A spatially based systematic sampling approach was used for the event attendees and residents‟ surveys, purposive sampling for the event organiser, venue owners and sponsors, while census sampling was used for the established businesses. For the purpose of the study, 767 respondents were targeted; only 730 responded. The results demonstrate support of the event among residents from Rawsonville as they perceive the event as beneficial to local businesses in the region. It displays the town and its beauty and does not cause any inconvenience to local lifestyles. However, there were mixed views on inequalities relating to employment opportunities and involvement in the planning and management of the event. Most established businesses, on the other hand, were also not directly involved in the Festival; even though there were opportunities for businesses to optimise profits and engender publicity, most did not use this opportunity to their advantage. The event attendees at the Festival were mostly from the Western Cape, attending the Festival in groups of friends with the large majority spending/planning to spend money at the Festival.
South African Department of Tourism
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Faroo, David Joseph. "Curriculum delivery in multi-grade rural schools in the Breede River / Overberg EMDC." Thesis, Cape Peninsula University of Technology, 2009. http://hdl.handle.net/20.500.11838/1972.
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Thesis (DTech (Education))--Cape Peninsula University of Technology, 2009The phenomena of multi - grade schools has been absent both in educational policy making, educator training and only represented in a few local educational curriculum research projects. However, the practice of multi-grade is common in South Africa and especially in rural and farming South Africa. Our National Curriculum Statements implies that all schools are the same. This study addresses this anomaly. Farm schools, which started as a political means of cheap labour (Act 47 of 1953) presented a further complication to the ministry: public schools on private property govern by section 14 contract failed farm education (Forgotten Schools, 2004; Ministerial report on rural education, 2005; Commission on Human Rights, 2006). The political and ideological shift from People's Education, which, at first envision human rights in line with international treaties such Education For All, Convention on the right of the child, Africa Charter on the Rights of the Child to Human Capital Development has marginalize the farm and rural learner. Curriculum changes since Curriculum 2005 accepted the same political and economic vision. The first world technical National Curriculum Statements mismatch farm education as systemic results since 2004 has shown. The government’s deficit view and national curriculum influence farm and rural teaching and learning negatively. This study focuses on curriculum delivery (intended I implemented) planning. How the educator adapted the curriculum to suit the needs of third world farm learner, its multi-grade context and the ideology of the hegemony. The qualitative paradigm will be that of the critical theory and grounded theory methodology with the goal of uncovering the educators' views and practice. This has been done by holding interviews with various foundation phase educators and looking at the seating arrangements and planning. The sample was from the Breede River District. A focus group of nineteen ACE students with 312 collective years experience has been involved in the coding and analysing. Current practice and planning have been juxtaposed with international multi-grade practice. The research questions were aimed at uncovering how rural and farm educators plan for their multi-grade classes when faces with a national mono-grade curriculum. Various research methodologies were used.
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Arthur, Charles Ian. "The Khoekhoen of the Breede River Swellendam : an archaeological and historical landscape study." Master's thesis, University of Cape Town, 2008. http://hdl.handle.net/11427/4165.
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Carolus, Vernon. "Waste and waste management in Breede Valley district." Thesis, Cape Peninsula University of Technology, 2007. http://hdl.handle.net/20.500.11838/784.
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Thesis (MTech (Environmental Health))--Cape Peninsula University of Technology, 2007The waste management that is taking place in the Breede Valley district focus mainly on disposal and end-of-pipe solutions. This approach resulted in serious negative impacts on the environment and human health. Improper waste management practices have become a major source of concern due to the risk associated with poor waste management in the area. Indiscriminate dumping of waste at street corners is very common. The basic waste management processes of collection, transport, segregation and [mal disposal appear to be very inefficient and inadequate. The objective of this study was to determine the composition of the waste stream as well as public awareness, attitudes and behaviours towards current and alternative waste management practices. A waste assessment study was conducted to determine the amount of waste generated by the different communities, as well as how much and what of the recyclables can be taken out of the waste stream by recycling. For this study data was obtained by formulation of questionnaires for businesses, communities and medical practitioners, as well as an interview with the Engineering Department of the Breede Valley Municipality about the current waste management situation in the area. From the data obtain from businesses, communities and medical facilities, it is clear that public participation, partnership, education and awareness is essential for effective integrated waste management. This study revealed that waste management practices are inefficient, uncontrolled and fragmented. This investigation shows that there is a huge difference between the different communities in terms of the volume of waste generation. The study also shows that waste related legislation is outdated and fragmented and there is no enforcement by municipal officials. The major Issues and challenges that affect the management of waste. include its organisational structure and lack of waste minimisation plans.
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Lategan, Eugene Lourens. "Determining of optimum irrigation schedules for drip irrigated Shiraz vineyards in the Breede River Valley." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/17866.
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Thesis (MScAgric)--Stellenbosch University, 2011.ENGLISH ABSTRACT: Shiraz/110R grapevines, growing in a fine sandy loam soil in the Breede River Valley, were subjected to ten different drip irrigation strategies during the 2006/07, 2007/08 and 2008/09 seasons. Grapevines of the control treatment (T1) were irrigated at 30% to 40% plant available water (PAW) depletion throughout the growing season. Grapevines of three treatments were irrigated at 70% to 80% PAW depletion from bud break until véraison (i.e. when ca. 95% of grape berries have changed colour), followed by either irrigation at 30% to 40% PAW depletion (T2) or a continuous deficit irrigation (CDI) strategy (T3) or irrigation at 70% to 80% PAW depletion (T4) during ripening. The CDI strategy was obtained by applying ca. half the volume of water that was applied to the control. This allowed the soil to dry out gradually between physiological stages (i.e. bud break and véraison or véraison and harvest). Grapevines of three further treatments were irrigated at ca. 90% PAW depletion from bud break until véraison, followed by irrigation at 30% to 40% PAW depletion (T5) or a CDI strategy (T6) or irrigation at ca. 90% PAW depletion (T7) during ripening. Grapevines of two treatments were irrigated by means of a CDI strategy from bud break until véraison. For both treatments, the soil water content (SWC) was allowed to dry out gradually until ca. 90% PAW depletion was reached. After véraison, the SWC of the one treatment was maintained at ca. 90% PAW depletion by applying only four small irrigations of three hours each during ripening (T8). The soil of the other treatment, received an irrigation at véraison to refill the SWC to field capacity (T9) followed by the CDI strategy during ripening. Grapevines of the tenth treatment were irrigated at ca. 90% PAW depletion between bud break and véraison followed by a partial profile refill (PPR) strategy during ripening (T10). In order to obtain the PPR strategy, SWC was only maintained between 40% and 60% PAW depletion. Evapotranspiration varied between 3.5 mm/day and 0.1 mm/day for driest and wettest treatments, respectively, during the period between December and February. This was substantially less than the volumes required for full surface irrigation. For irrigations applied at 30% to 40% PAW depletion (T1), 70% to 80% PAW depletion (T4) and ca. 90% PAW depletion (T7) levels throughout the season, crop coefficients for the Penman-Monteith reference evapotranspiration (ETo) were 0.4, 0.2 and 0.1, respectively. Under the given conditions, the different irrigation strategies did not have any effect on root distribution and density. Shoot growth of grapevines exposed to high to severe water deficits in the pre-véraison period stopped before mid December. Shoots of grapevines that were exposed to high or severe water deficits before véraison followed by more frequent irrigation during ripening showed active re-growth. These trends occurred during all the seasons. The level of PAW depletion reflected strongly in the plant water potential in the grapevines. Leaf water potential was influenced by the prevailing atmospheric conditions, whereas stem water potential was less sensitive to atmospheric conditions, but responded more directly to soil water availability. Due to the good relationships between pre-dawn leaf, mid-day leaf, mid-day stem and total diurnal water potential, it was possible to re-classify the water status in terms of previous classifications for these water potentials based on pre-dawn measurements. Water constraints in T1, T2 and T5 grapevines were classed as experiencing no stress, whereas the T7 and T8 ones experienced strong to severe water constraints before harvest. High frequency irrigation strategies during ripening delayed sugar accumulation due to dilution of sugar in the larger berries. Except for the wettest strategy, and where grapevines were subjected to the CDI strategy throughout the season, berry mass increased during ripening, i.e. from véraison to harvest. Water deficits had a negative effect on berry mass, bunch size and yield. Where higher soil water depletion levels were allowed, irrigation strategies had a positive effect on the irrigation water productivity of grapevines compared to the frequently irrigated or CDI strategies. Higher water constraints in grapevines, particularly during ripening, improved sensorial wine colour and enhanced some of the more prominent wine aromas, e.g. spicy and berry. Grapevines that were irrigated at a high frequency during ripening produced wines with diluted character flavours and aromas and inferior overall quality. Under the given conditions, sensorial wine colour and spicy character were the dominant factors in determining overall sensorial wine quality.
AFRIKAANSE OPSOMMING: Shiraz/110R wingerdstokke in ‘n fyn sandleem grond in die Breede Rivier vallei is gedurende die 2006/07, 2007/08 en 2008/09 seisoene met tien verskillende drupbesproeiingstrategieë besproei. Wingerdstokke van die kontrole (B1) is deur die seisoen by 30% to 40% plant beskikbare water (PBW) onttrekking besproei. Drie behandelings is tussen bot en deurslaan (wanneer ca. 95% van die korrels verkleur het) by 70% tot 80% PBW onttrekking besproei, gevolg deur besproeiing by 30% tot 40% PBW onttrekking (B2), ‘n deurlopende tekort besproeiing (DTB) strategie (B3) of besproeiing by 70% tot 80% PBW onttrekking (B4) gedurende rypwording. In die geval van die DTB strategie is ongeveer die helfte van die volume water toegedien wat by die kontrole toegedien is. Laasgenoemde strategie het die grond toegelaat om geleidelik tussen fisiologiese fases (i.e. tussen bot en deurslaan of tussen deurslaan en oes) uit te droog. Drie ander behandelings is by ca. 90% PBW onttrekking tussen bot en deurslaan besproei, gevolg deur besproeiing by 30% tot 40% PBW onttrekking (B5) of ‘n DTB strategie (B6) of besproeiing by ca. 90% PBW onttrekking (B7) gedurende rypwording. Wingerdstokke van twee ander behandelings is d.m.v. ‘n DTB strategie vanaf bot tot deurslaan besproei. Beide behandelings se grondwaterinhoud (GWI) was toegelaat om geleidelik uit te droog tot ca. 90% PBW onttrekking bereik was. Na deurslaan was die GWI van die een behandeling naby ca. 90% PBW onttrekking gehandhaaf deur slegs vier klein besproeiings van drie uur elk gedurende rypwording toe te pas (B8). Die grond van die ander behandeling het tydens deurslaan ‘n besproeiing ontvang om die GWI tot by veldkapasiteit te hervul (B9) en is tydens rypwording weer d.m.v. ‘n DTB strategie besproei. Stokke van die tiende behandeling is tussen bot en deurslaan by ca. 90% PBW onttrekking besproei, gevolg deur besproeiing d.m.v. ‘n gedeeltelike profiel hervul (GPH) strategie tydens rypwording (B10). Om ‘n GPH strategie toe te kon pas, is tussen 40% en 60% PBW ontrekking gehandhaaf. Evapotranspirasie het tussen 3.5 mm/dag en 0.1 mm/dag vir onderskeidelik die natste en droogste behandelings tussen Desember en Februarie gevarieer. Dit was aansienlik laer as volumes wat vir voloppervlak besproeide wingerde benodig word. In die geval van besproeiing by 30% tot 40% PBW onttrekking (B1), 70% tot 80% PBW onttrekking (B4) en ca. 90% PBW onttrekking (B7) deur die loop van die seisoen was die gewasfaktore vir die verwysingverdamping (ETo) 0.4, 0.2 en 0.1 onderskeidelik. Onder die gegewe toestande het die verskillende besproeiingstrategië geen effek op die worteldigtheid en –verspreiding gehad nie. Lootgroei van wingerdstokke wat aan hoë tot baie hoë watertekorte blootgestel was voor deurslaan, het voor middel Desember gestop. Lote van wingerdstokke wat aan hoë tot baie hoë watertekorte voor deurslaan blootgestel is, gevolg deur besproeiing teen ’n hoë frekwensie tydens rypwording, het aktiewe hergroei getoon. Die PBW ontrekkingspeil het sterk in die plantwaterpotensiale van wingerdstokke weerspieël. Blaarwaterpotensiaal is deur heersende klimaatstoestande beïnvloed, terwyl stamwaterpotensiaal minder sensitief teenoor die klimaat was, maar meer direk deur die beskikbaarheid van grondwater beïnvloed is. Vanweë die goeie verband tussen voordagbreek blaar-, mid-dag blaar-, mid-dag stam- en totale daaglikse waterpotensiaal, was dit moontlik om water status van die stokke te her-klassifiseer in terme van vorige vir waterpotensiaalklassifikasies wat op voordagbreek waardes gebasseer is. Waterspanning in B1, B2 en B5 stokke is as geen spanning geklassifiseer, terwyl dié van B7 en B8 voor oes in die hoë tot baie hoë klasse geval het. Hoë frekwensie besproeiing strategieë gedurende rypwording kan suikertoename a.g.v. die groter korrels vertraag. Met die uitsondering van die natste strategie, asook waar stokke volgens die DTB strategie deur die seisoen besproei is, het korrelmassa gedurende rypwording toegeneem. Watertekorte het ’n negatiewe effek op korrelmassa, trosgrootte en produksie gehad. Besproeiingstrategieë waar ’n hoë mate van grondwateronttrekking voor besproeiings toegelaat is, het ’n positiewe effek op die besproeiingwaterproduktiwiteit van wingerd in vergelyking met gereelde besproeiings of ‘n DTB strategie gehad. Watertekorte, veral gedurende rypwording, het ’n verbetering in sensoriese wynkleur en meer prominente wyn aromas, tot gevolg gehad. Besproeiing teen hoë frekwensies gedurende rypwording, het wyne met ’n afgewaterde smaak en aroma karakters asook ’n swak algehele gehalte produseer. Sensoriese wynkleur en spesery karakter die dominante faktore in die bepaling van algehele kwaliteit.
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Chakona, Albert. "Comparative biogeography and ecology of freshwater fishes in the Breede and associated river systems, South Africa." Thesis, Rhodes University, 2012. http://hdl.handle.net/10962/d1015694.
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Distribution patterns and levels of genetic diversity in extant taxa are a product of complex palaeogeographic processes and climatic oscillations as well as the species’ intrinsic ecological adaptations. The Cape Floristic Region of South Africa presents a unique system for studying the processes that promote species diversification and distribution patterns. This region has a high degree of endemism of both terrestrial and aquatic biota and is clearly isolated from neighbouring areas by the Cape Fold Mountains and the Great Escarpment. The objective of this study was to firstly examine the ecology of freshwater fishes belonging to the genera Galaxias, Pseudobarbus and Sandelia in the south-western CFR. This was followed by an assessment of the genetic diversity of these taxa. Unique lineages were identified and their distribution was mapped. The work aimed to explore the role of the region’s complex palaeogeographic and climatic history as well as the role of the species’ ecological adaptations in driving lineage diversification and shaping contemporary distribution patterns. The four main components of the study can be summarised as follows: 1. Habitat associations of three widely distributed lineages of Galaxias zebratus Pseudobarbus burchelli and Sandelia capensis were evaluated at multiple localities in minimally disturbed mountain tributaries of the Breede, Duiwenhoks and Goukou River systems. The lineages have distinct habitat associations which were related to differences in their morphological traits. The slender-bodied Galaxias ‘nebula’ and the fusiform-shaped Pseudobarbus ‘Breede’ are capable of exploiting upper reaches with faster water velocity. By contrast, the laterally compressed Sandelia ‘eastern’ is restricted to lower reaches, making this lineage more susceptible to a wide array of impacts. 2. A recently discovered lineage of Galaxias zebratus, (Galaxias ‘nebula’), was found to be capable of tolerating emersion for a prolonged period of time. This is the first time that such capabilities have been documented in an African galaxiid. These adaptations have implications for the interpretation of Galaxias ‘nebula’s wide distribution range. 3. The phylogeography of Galaxias ‘nebula’ across its entire distribution range was investigated using two mitochondrial genes (cytochrome c oxidase subunit I (COI) and cytochrome b (cyt b)). This lineage has a complex evolutionary history that was influenced by both intrinsic and extrinsic factors. Rare events such as episodic drainage connections during Pleistocene and Holocene pluvial periods, possibly augmented by river confluences during periods of lower sea-levels and river capture events seem to be the most credible explanation for the extensive contemporary distribution and the relatively shallow genetic divergence between different river systems. 4. Mitochondrial cyt b sequences were used (i) to assess genetic diversity in G. zebratus, P. burchelli and S. capensis from the south-western CFR and (ii) to determine the roles of intrinsic ecological adaptations and extrinsic landscape and climatic changes in promoting genetic diversification and shaping present day distribution patterns of lineages in the three taxa. Marine incursions during periods of major sea-level transgressions are proposed to have isolated populations in upland refugia, thereby driving allopatric divergence in these species. Subsequent connections of rivers during wetter periods and lower sea-levels are proposed to have facilitated post-speciation dispersal of lineages to attain present day distribution patterns. While detailed morphological studies and further genetic analysis are needed to substantiate the taxonomic status of the newly discovered lineages of Galaxias zebratus, Pseudobarbus burchelli and Sandelia capensis, results of the present study indicate that the south-western CFR represents a previously unrecognised centre of freshwater fish diversity and microendemism in the broader Cape Floristic Region. Accurate identification of lineages and comprehensive mapping of their distribution is a fundamental pre-requisite for ecological studies, assessing conservation status and implementation of appropriate conservation measures.
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Steynor, Anna C. "The impact of global climate change on the runoff and ecological sustainability of the Breede River." Thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/6754.
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Includes bibliographical references (leaves 106-111).The Breede River catchment in the South Western Cape is already under pressure for its water resources due to its supporting a variety of different land uses. The predominant land use in this catchment is agriculture, which demands the majority of river water for irrigation. The Department of Water Affairs and Forestry are currently investigating the future demand for water from the river, in this respect it is important to know what effect climate change will have on the change in river flow. Self Organising Maps (SOMs) are used to identify changes in the circulation systems contributing to the rainfall of the region and from this the potential change is assessed for the Breede River flow under future climate change. It is assessed that the runoff in the Breede River is expected to change under all the models of ECHAM4, CSIRO and HadAM. The magnitude of this alteration is calculated by using the change in the SOM node frequencies between the present and the future data. This is then subtracted from the present runoff data supplied by DWAF. A source of runoff decrease in the future is agricultural irrigation. The increase in irrigation under climate change is determined by inserting future climate data into an agricultural model. Once the increased amount of water used in irrigation is determined, it is subtracted from the projected future runoff. From this it is determined whether the river will be ecologically sustainable under climate change.
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Stolk, Robert. "The effect of irrigation and canopy management on selected vegetative growth and reproductive parameters of Vitis vinifera L. cv. Shiraz in the Breede River Valley." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86470.
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Thesis (MScAgric)--Stellenbosch University, 2014ENGLISH ABSTRACT: The objective of the study was to determine combined effects of irrigation and canopy management practices on grapevine water status, growth, yield and juice characteristics. The field study was carried out with Shiraz/110R grapevines in the Breede River Valley. Grapevines were drip irrigated at 30%, 60% and 90% plant available water (PAW) depletion, respectively. For each PAW level, grapevines had (i) suckered, vertical shoot positioned (VSP), (ii) non-suckered, VSP and (iii) sprawling canopies. Treatments were replicated three times in a randomised block design and applied during the 2011/12 and 2012/13 seasons. Irrigation applied at low PAW depletion levels, i.e. high frequency irrigation, required substantially higher irrigation volumes compared to high depletion levels, i.e. low frequency irrigation. Low frequency irrigation increased grapevine water constraints compared to high frequency irrigation. Sprawling canopy grapevines experienced more water constraints than VSP grapevines. Grapevines irrigated at 90% PAW depletion experienced strong water constraints. Low frequency irrigation seemed to accelerate berry ripening compared to high frequencies, probably due to smaller berries and lower yields. Sprawling canopies consistently enhanced berry ripening due to more sunlight interception by the leaves. Berry ripening of VSP grapevines was slower, but inconsistent between seasons. Level of PAW depletion and canopy management practice did not affect number of leaves per primary shoot. Low frequency irrigation reduced number of leaves per secondary shoot. Leaf number per shoot contributed more to total leaf area than leaf size. Level of PAW depletion did not affect number of shoots per grapevine. Suckering reduced number of shoots per grapevine. Low frequency irrigation reduced total leaf area per grapevine compared to high frequency irrigation. Effects of canopy management practice were more pronounced in the case of high frequency irrigation compared to low frequency irrigation. At pruning, primary cane length was not affected by level of PAW depletion or canopy management practice. Secondary cane mass and diameter were not affected by canopy management practice. Multiple linear regression showed that cane mass was a function of cane length and diameter. Low frequency irrigation reduced berry mass compared to high frequency irrigation, irrespective of canopy management practice. However, at harvest there was no difference in berry mass between 30% and 60% PAW depletion. Low irrigation The objective of the study was to determine combined effects of irrigation and canopy management practices on grapevine water status, growth, yield and juice characteristics. The field study was carried out with Shiraz/110R grapevines in the Breede River Valley. Grapevines were drip irrigated at 30%, 60% and 90% plant available water (PAW) depletion, respectively. For each PAW level, grapevines had (i) suckered, vertical shoot positioned (VSP), (ii) non-suckered, VSP and (iii) sprawling canopies. Treatments were replicated three times in a randomised block design and applied during the 2011/12 and 2012/13 seasons. Irrigation applied at low PAW depletion levels, i.e. high frequency irrigation, required substantially higher irrigation volumes compared to high depletion levels, i.e. low frequency irrigation. Low frequency irrigation increased grapevine water constraints compared to high frequency irrigation. Sprawling canopy grapevines experienced more water constraints than VSP grapevines. Grapevines irrigated at 90% PAW depletion experienced strong water constraints. Low frequency irrigation seemed to accelerate berry ripening compared to high frequencies, probably due to smaller berries and lower yields. Sprawling canopies consistently enhanced berry ripening due to more sunlight interception by the leaves. Berry ripening of VSP grapevines was slower, but inconsistent between seasons. Level of PAW depletion and canopy management practice did not affect number of leaves per primary shoot. Low frequency irrigation reduced number of leaves per secondary shoot. Leaf number per shoot contributed more to total leaf area than leaf size. Level of PAW depletion did not affect number of shoots per grapevine. Suckering reduced number of shoots per grapevine. Low frequency irrigation reduced total leaf area per grapevine compared to high frequency irrigation. Effects of canopy management practice were more pronounced in the case of high frequency irrigation compared to low frequency irrigation. At pruning, primary cane length was not affected by level of PAW depletion or canopy management practice. Secondary cane mass and diameter were not affected by canopy management practice. Multiple linear regression showed that cane mass was a function of cane length and diameter. Low frequency irrigation reduced berry mass compared to high frequency irrigation, irrespective of canopy management practice. However, at harvest there was no difference in berry mass between 30% and 60% PAW depletion. Low irrigation.
AFRIKAANSE OPSOMMING: Die doelwit van hierdie studie was om die gekombineerde effek van besproeiing en lowerbestuurspraktyke op wingerd waterstatus, groei, opbrengs en druiwesap eienskappe te bepaal. Die veld studie is uitgevoer met Shiraz/110R wingerdstokke in die Breede Rivier Vallei. Wingerdstokke was d.m.v. drupbesproeiing teen 30%, 60% en 90% plant beskikbare water (PBW) ontrekking, onderskeidelik besproei. Vir elke PBW ontrekkingspeil, was wingerdstokke (i) gesuier en vertikale lootposisionering toegepas, (ii) ongesuier en vertikale lootposisionering toegepas en (iii) geen lowerbestuur toegepas nie (lowers wat oophang). Behandelings is drie keer in ‘n ewekansige blokontwerp herhaal en tydens die 2011/12 en 2012/13 seisoene toegepas. Besproeiing wat teen ‘n lae PBW ontrekkingspeil toegedien is, d.w.s. hoë frekwensie besproeiing, vereis aansienlik hoër besproeiings volumes i.v.m. hoë besproeiing ontrekkingspeile, d.w.s. lae frekwensie besproeiing. Wingerdstokke wat oopgehang het meer watertekorte as vertikaal lootgeposisioneerde wingerdstokke ervaar. Wingerdstokke wat teen 90% PBW ontrekking besproei was, het sterk watertekorte ervaar. Dit het voorgekom of lae frekwensie besproeiing korrelrypwording versnel het i.v.m. hoë frekwensie besproeiing. Dit was heelwaarskynlik a.g.v. kleiner korrels en laer opbrengste. Wingerdstokke wat oophang het, het konsekwent korrelrypwording versnel a.g.v. meer sonligonderskepping deur die blare. Korrelrypwording van vertikaal lootgeposisioneerde wingerdstokke was stadiger, maar teenstrydig tussen die seisoene. Plant beskikbare water ontrekkingspeil en lowerbestuurspraktyke het geen invoeld gehad op die aantal blare per primêre loot nie. Lae frekwensie besproeiing het die aantal blare per sekondêre loot verminder. Die hoeveelheid blare per loot het ‘n groter bygedra gemaak i.v.m. blaar grootte. Plant beskikbare water ontrekkingspeil het geen invloed gehad op die aantal lote per wingerdstok nie. Suier verminder die aantal lote per wingerdstok. Lae frekwensie besproeiing verminder die totale blaar oppervlak i.v.m. hoë frekwensie besproeiing. Die effek van lowerebestuurspraktyke is duideliker sigbaar by hoë frekwensie besproeiing i.v.m. lae frekwensie besproeiing. Primêre lootlengte was nie deur PBW ontrekkingspeil of lowerbestuurspraktyke beïnvloed nie. Sekondêre lootmassa en -deursnit is nie deur lowerbestuurspraktyk beïnvloed nie. Meervoudige lineêre regressie het getoon dat lootmassa ‘n funksie van lootlengte en -deursnit was. Lae frekwensie besproeiing het korrelmassa verminder ongeag die lowerbestuurspraktyk i.v.m. hoë frekwensie besproeiing. Daar was egter geen verskil in korrelmassa by oes tussen 30% en 60% PBW ontrekking nie. Lae frekwensie besproeiing was geneig om suiker akkumulasie te versnel i.v.m. hoë frekwensie besproeiing. Wingerdstokke wat oopgehang het, het veral by lae frekwensie besproeiing korrelrypwording versnel i.v.m. vertikaal lootgeposisioneeide wingerdstokke. Suikerinhoud per korrel het geneig om toe te neem totdat dit ‘n plato bereik het. Hierdie plato was meer prominent by hoë frekwensie besproeiing i.v.m. lae frekwensie besproeiing. Wingerdstokke wat oopgehang het, het ook hierdie plato vroeër bereik i.v.m. vertikaal lootgeposisioneerde wingerdstokke. By oes was die totale titreerbare suur (TTS) hoër vir wingerdstokke wat vroeër geoes was. As gevolg van versnelde rypwording was TTS van wingerdstokke wat teen lae frekwensie besproei is hoër i.v.m. hoë frekwensie besproeiing. ‘n Ligter oeslading in verhouding tot ‘n hoër blaaroppervlak het ook gelei tot hoër TTS by oes. Plant beskikbare water ontrekkingspeil en lowerbestuurspraktyke het geen invloed op die pH gehad met oes nie. Die hoeveelheid trosse per wingerdstok het nie duidelike tendense gewys wat verbind kon word met watertekorte wat deur die stokke ervaar is nie. Gesuierde vertikaal lootgeposisioneerde wingerdstokke het die hoeveelheid trosse per stok verminder i.v.m. die ongesuierde vertikaal lootgeposisioneerde wingerdstokke en wingerstokke wat oopgehang het. Trosmassa het dieselfde tendense as korrels per tros gevolg. Lae frekwensie besproeiing het opbrengs aansienlik verminder i.v.m. hoë frekwensie besproeiing. Gesuierde vertikaal lootgeposisioneerde wingerdstokke het geneig om opbrengste te verminder i.v.m. ongesuierde vertikaal lootgeposisioneerde wingerdstokke. Hierdie effek het egter verdwyn waar wingerdstokke teen 90% PBW ontrekking besproei was. Druif skade a.g.v. suurvrot was meer prominent by hoë frekwensie besproeiing, veral vir ongesuierde vertikaal lootgeposisioneerde wingerdstokke. Total opbrengs verlies, uitgedruk as ‘n persentasie, was hoofsaaklik ‘n funksie van sonbrand eerder as ‘n funksie van suurvrot.
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De, Villiers Louis. "Sedimentation changes in the Breede River estuary: A study of sedimentation changes on the flood tide delta in the estuary, with reference to the hydrology of the river." Master's thesis, University of Cape Town, 1988. http://hdl.handle.net/11427/17329.
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The study examines sedimentation changes on the flood tide delta in the Breede River estuary since 1942, and relates these changes in sedimentation to changes in the hydrology of the river, as a consequence of damming the river and its tributaries. Sequential aerial photography is used to determine changes in the extent of the Zostera beds on the flood delta, this being indicative of changes in the substrate sediments. Four cores were taken from the flood delta, and standard grainsize analysis techniques employed to establish the composition and characteristics of the sediments. Together with survey work and other ancillary information, these twci techniques enable description of the sedimentation changes and the present sediment dynamics on the flood tide delta. Virgin catchment runoff was simulated using two models, having rainfall data as the primary input. Simulated and actual runoff, as determined from gauge plate data, were qualitatively compared in terms of mean monthly runoff and cumulative annual runoff. This, together with an examination of temporal increases in the total volume of water impounded in the catchment, enables the impact of dams on the hydrology of the river to be determined. It is found that there has been a virtually complete annihilation of the mudflat the Zostera beds, a concomitant loss of the areas, and that the sediments presently occurring on the flood delta are almost wholly of marine origin. Temporally, these changes correlate well with increased impoundment of runoff in the catchment. It is concluded that there has been an increase in marine sedimentation on the flood tide delta, and that this change in sedimentation is directly related to and consequent upon changes in the hydrology of the river as a result of impounding catchment runoff.
Books on the topic "Breede River"
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Mellish, Chris. Breede River revelations. Cape, South Africa: Mallard Publishers, 1996.
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International, Conference on Fusion Reactor Materials (2nd 1986 Chicago Ill ). Canadian fusion breeder blanket program: Irradiation facilities at Chalk River. Mississauga, Ont: CFFTP, 1986.
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Banners to the breeze: The Kentucky Campaign, Corinth, and Stones River. Lincoln: University of Nebraska Press, 2000.
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Debby, Sly, and Muir Sarah 1965-, eds. The ultimate book of the horse and rider. London: Hermes House, 2003.
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Draper, Judith. The ultimate book of the horse and rider. London: Hermes House, 2002.
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Schroedl, Gerald F. Archaeological research at 4ORE107, 4ORE108, and 4ORE124 in the Clinch River breeder reactor plant area, Tennessee. Norris, Tenn: Tennessee Valley Authority, 1990.
Find full textBook chapters on the topic "Breede River"
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MacGregor, J. "On deep Galilee“—Bank—Names of the Lake—Shores—Submerged Ruin—Naked Stranger—Lagoons—Ports—Bethsaida Julias—Oozing Streams—River Semakh—Gergesa—A Pause—Tell Hoom—Keraseh —Fête—Search for Piers—Submerged Remains—Breeze—Storm— Searching Below—Curious Stones—No Port—Tabiga—Bethsaida Bay —Flocks and Shoals—Gennesareth." In A Canoe Cruise in Palestine, Egypt and the Waters of Damascus, 285–309. 1.MacGregor, J. - Journeys - Middle East 2.Rob Roy (Canoe) 3.Canoes and canoeing- Middle East - History- 19th century 4.Jordan River - Description and travel 5.Middle East - Description and travel: Routledge, 2019. http://dx.doi.org/10.4324/9781315828664-19.
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"11. BREEDE RIVER VALLEY." In Wines of the New South Africa, 246–57. University of California Press, 2019. http://dx.doi.org/10.1525/9780520954830-014.
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Hardy, Thomas. "XXIV ‘Breeze, bird, and flower confess the hour.’." In A Pair of Blue Eyes. Oxford University Press, 2009. http://dx.doi.org/10.1093/owc/9780199538492.003.0026.
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The rain had ceased since the sunset, but it was a cloudy night; and the light of the moon, softened and dispersed by its misty veil, was distributed over the land in pale grey. A dark figure stepped from the doorway of John Smith’s river-side...
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Ehrenfeld, David. "Thinking about Breeds and Species." In Swimming Lessons. Oxford University Press, 2002. http://dx.doi.org/10.1093/oso/9780195148527.003.0033.
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Our family dog is an Andalusian bog hound, a perfect specimen of his breed. His appearance and behavior are typical of bog hounds, but for those readers not familiar with them, a description is in order. An un-usually handsome animal, he stands 22 inches high at the shoulder, maintains a trim weight of fifty-seven pounds, and has a short, smooth coat of a rich, red-brown color and a well-proportioned head with strong jaw musculature and brown eyes. He is extremely fast, and while running in open areas makes frequent, stiff-legged bounds straight up in the air. This may be an ancient canine technique of cooperative pack hunting, probably serving both to stir up prey and to provide a view over tall grass. His name is J. D., given by my daughter Kate because the way he moves his hindquarters when he walks reminded her of a character of that name played by Brad Pitt, in the movie Thelma and Louise. J. D. is exceptionally affectionate. He has never been known to growl or snap at anyone, although he once took exception to a recording of Paul Robeson singing “Old Man River.” When permitted, he greets people by standing on his hind legs with his feet on their chest (or shoulders, if they are short) and gazing directly into their eyes. He rarelys hows affection by licking; as a special mark of favor he may take a handor arm into his mouth and chew gently. His distaste for swimming—as opposed to walking in muck—is characteristic of bog hounds, especially Andalusians. We tested this behavior during a trip along the headwaters of the Passaic River, in northwest New Jersey. Coming to a deep pool, my wife, Joan, J. D.’s favorite, jumped in and pretended to be drowning. J. D. watched from the ban kin great agitation as she splashed and screamed, but he made it quite plain that if anyone were to jump in and save her, it would have to be me, or perhaps another dog. It is hard to judge J. D.’s intelligence.
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"Pacific Salmon: Ecology and Management of Western Alaska’s Populations." In Pacific Salmon: Ecology and Management of Western Alaska’s Populations, edited by Jeffrey B. Olsen, Steve J. Miller, Ken Harper, and John K. Wenburg. American Fisheries Society, 2009. http://dx.doi.org/10.47886/9781934874110.ch34.
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<em>Abstract.</em>—In this study, we used genetic and demographic data to estimate and evaluate an indicator of genetic health, the effective number of breeders per year (<em>N<sub>b</sub></em>), in Chinook salmon <em>Oncorhynchus tshawytscha </em>populations from western Alaska. Many of these populations show male-biased (70%–85%) sex ratios. Four such populations were examined: two from the Gisasa and Tozitna Rivers in the Yukon River drainage and two from the Tuluksak and Kwethluk Rivers in the Kuskokwim River drainage. Our objectives were to: 1) evaluate the genetic health of each population, and 2) infer the influence of annual fluctuations in census size, male-biased sex ratio, and variance in family size on <em>N<sub>b</sub></em>. Four genetic estimates of <em>N<sub>b</sub> </em>were computed for each population to account for possible bias when using low frequency alleles. The lowest <em>N<sub>b</sub> </em>estimates ranged from 225 (Tozitna River) to 4,859 fish (Kwethluk River) and were not indicative of a high risk of long-term loss of genetic diversity. Demographic and genetic estimates of the ratio <em>N<sub>b</sub></em>/<EM>N</EM>, where <EM>N </EM>is census size, suggested the observed sex ratio bias is unlikely to adversely impact genetic diversity at current population sizes. Variation in family size within each population likely had the largest affect on <em>N<sub>b</sub> </em>over the time period examined. However, the time period was relatively short (3–14 years) and the estimates of <em>N<sub>b</sub></em>, could decline if populations show large future fluctuations, including significant decreases, in census size.
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Herman, Bernard L. "The Wachapreague Fireman’s Carnival Cake Wheel." In A South You Never Ate, 229–46. University of North Carolina Press, 2019. http://dx.doi.org/10.5149/northcarolina/9781469653471.003.0012.
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The Wachapreague Fireman's Carnival is unique only in its details in a place where homecomings of all varieties are occasions for long-standing celebrations. Throughout the Eastern Shore, favorite foods afford communions of remembrance and reminiscence. Where we eat speaks to the idea of terroir grounded in the places where folks share meals and conversation. Where we eat goes beyond experiences of breaking bread and maps and into how we know our place in the world, not just through what we eat, but also how we remember and speak of locale. The literal consumption of place nourishes our understandings of who we are. The power of taste is immersive, a deep plunge into a river of memory and flavor.
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Lorbiecki, Marybeth. "A Wild Proposal: 1919– 1924." In A Fierce Green Fire. Oxford University Press, 2016. http://dx.doi.org/10.1093/oso/9780199965038.003.0013.
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On August 1, 1919, Aldo was appointed to the second-highest position in District 3—Assistant Forester in Charge of Operations. Numerous foresters grumbled that Leopold didn’t deserve the job and was hardly suited to its enormous responsibilities. He hadn’t proven he was versed enough in all aspects of forestry management to handle the overarching tasks of inspecting every forest, reporting on what he found, and suggesting improvements. Leopold had a rigorous schedule to follow—three forests per summer, with a month at each. Since the Forest Service had no set inspection method, Leopold had to develop his own. His first reports were sketchy. He wrote more comments on rangers’ initiative and reading habits than on the details of their work or the conditions of their fire stations. During a late-summer tour of his old stomping ground, the Carson, Leopold roved further south into the Datil Forest. He fished away a Sunday at the headwaters of the Gila River and came away relaxed and refreshed. No telephone poles or roads cut across the landscape; there were just the pines; the trout; the tingle of fresh, pungent air; and a breeze alive with bird calls. Few areas like this remained in District 3. Was there, he wondered, a legal way to preserve the canyonlands around the Gila just as they were? That December, at a meeting of district foresters in Salt Lake City, Leopold heard about a young forest assistant named Arthur Carhart from District 2 in Colorado. Carhart, the Forest Service’s first landscape architect, had been dubbed the “Beauty Engineer” by his coworkers. Carhart had recommended that Trappers Lake, in the White River National Forest, be permanently preserved in a wilderness state—no so-called improvements. On his return trip, Leopold stopped by the D-2 offices to meet the man. Up to this point, attempts to set aside natural areas in the national forests led only to national parks or “primitive areas” that were open to later development. Leopold did not trust the park system to preserve any wilderness area intact.
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Falconer, Rachel. "Midlife Music: The Overhaul and Frissure." In Kathleen Jamie. Edinburgh University Press, 2015. http://dx.doi.org/10.3366/edinburgh/9780748696000.003.0023.
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This chapter explores the theme of a midlife threshold in Jamie’s two volumes published in 2012-13. Instead of a conversionary trope, such as we find in the famous opening lines of Dante’s Commedia, Jamie’s poetry here explore edges of being that open onto unfixed and transitional states. The forms of the poems are correspondingly fragmentary and fluid. Images of river flow, breezes and bird flight, predominate. If The Tree House depicts Jamie’s local landscape, The Overhaul performs its weather. The poetry here is musical, in the sense explored by philosopher Jean-Luc Nancy: it is coming and going, emerging and fading, unlike visual images which appear at once. And like musical performance, which creates echo chambers between instruments struck and sound responding, the subject captured in Jamie’s midlife poetry is attentive and responsive to many voices and noises, not necessarily human ones. Both formally and thematically, these poems perform the processes of fracture and healing, in the body, in landscape, and above all, in the sounds they make falling on the ear.
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Ehrenfeld, David. "Hot Spots and the Globalization of Conservation." In Swimming Lessons. Oxford University Press, 2002. http://dx.doi.org/10.1093/oso/9780195148527.003.0024.
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Eight friends were seated around the dining room table, two bulging photo albums at the ready, about to start a round of that curious adult version of Show and Tell known as Our Summer Vacation. Donna and Stanley had begun their album with pictures of Stanley delivering a lecture to clinical psychologists at the Catholic University of Campinas, in the state of São Paulo, Brazil. This was followed by page after page of lush, colorful South American scenery: snapshots of the mighty Iguazú Falls taken from the river below; towering walls of green vegetation along the Rio Paraná; a thick growth of native trees overtaking the exotic plantings left behind by the celebrated botanist Moises Bertoni at the remains of his agricultural experiment station in the Paraguayan province of Alto Paraná. Then there were pictures of Stan-ley and Donna with their Brazilian hosts, flanked by stately palms; pictures at their friends’ beautiful beach house in Ubatuba; pictures of costumed samba dancers; and more pictures of scarlet and blue macaws, gaudy toucans, purple bougainvilleas, brilliant butterflies, and the rich magnificence of one of the last remaining patches of Brazil’s Atlantic coastal forest. The album provided a breathtaking display of natural and human exuberance painted in a profusion of vivid reds, blues, yellows, and, above all, greens. I could almost smell the myriad fragrances borne on the tropical breeze and hear one of my favorite sounds, the chattering of parrots far above in the treetops. As the pages turned, the phrase “hot spots” came into my mind, that graphic term for those patches of exceptionally high biodiversity—many of them in the tropics—that receive the lion’s share of attention from conservation biologists and others dedicated to the preservation of endangered species. I thought of the conservation argument that says if we want to preserve life, look first at the places where, acre for acre, the most kinds of life exist—where an acre can yield a hundred species of trees instead of a handful, and more species of insects than most of us can imagine.
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Leopold, Estella B. "Fall." In Stories From the Leopold Shack. Oxford University Press, 2016. http://dx.doi.org/10.1093/oso/9780190463229.003.0010.
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In the fall we had great fun picking our orchard apples and harvesting in the garden. There were two old apple trees, undoubtedly planted by the Baxter family in the late 1800s. One bore very large sweet apples, which probably was a Wolf River type, in Mother’s estimation, and the other bore just nice, tasty apples. The trunks of these two trees were ten to twelve inches in diameter, so they were really mature trees. Under and around these apple trees we usually had planted potatoes (our best crop!), corn, and huge beefsteak tomatoes. A slice from a beefsteak tomato warmed by the sun and just picked would cover a whole slab of bread. What fabulous sandwiches these made with mayonnaise. Makes me hungry to think about it. It was always such fun to visit our garden with Mother, as she would get very enthusiastic about our crops. Most fun was to dig potatoes. I might be at the shovel, and Mother with a bucket was collecting the potatoes, which were invariably healthy and robust. We would both get on our knees and feel around for the potatoes. Mother would get excited and ooh and ah about their size, their ruddiness, and their abundance. “Oh, Estella. Look at THAT one! Put your hands through that loose soil and make sure we did not leave any potatoes behind! Those little potatoes are hiding,” she would say, or words to that effect. Boiling these little potatoes up for supper was a special treat, as they were so tasty with butter when lightly cooked. Our corn occasionally bore enough cobs to give us a meal. We usually had good luck with onions, too. To weed this garden we had a one-wheeled cultivator with a hoe or blade attached behind the wheel, which was about one foot in diameter. The wooden handles formed a V sprouting from the axis of the wheel. With two hands one would push this wheeled implement between the rows of crops, and it would turn over the weeds, so one could keep the space between the rows pretty weed-free without too much work.
Conference papers on the topic "Breede River"
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"Removal of Turbidity and Coliform Bacteria from Karoon River water by natural Coagulants Aid (Bread Yeast) With PAC." In International Conference on Chemical, Environmental and Biological Sciences. International Institute of Chemical, Biological & Environmental Engineering, 2015. http://dx.doi.org/10.15242/iicbe.c0315032.
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O’Donnell, William J., and Donald S. Griffin. "ASME Code Needs for Very High Temperature Generation IV Reactors." In ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-77406.
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Subsection NH “Components in Elevated Temperature Service” of Section III was originally developed to provide structural design criteria and limits for elevated-temperature design of Liquid-Metal Fast Breeder Reactor (LMFBR) systems and some gas-cooled systems. The U.S. Nuclear Regulatory Commission (NRC) and its Advisory Committee for Reactor Safeguards (ACRS) reviewed the design limits and procedures in the process of reviewing the Clinch River Breeder Reactor (CRBR) for a construction permit in the late 1970s and early 1980s, and identified issues that needed resolution. In the years since then, the NRC, DOE and various contractors have evaluated the applicability of the ASME Code and Code Cases to high-temperature reactor designs such as the VHTGRs, and identified issues that need to be resolved to provide a regulatory basis for licensing. Since the 1980s, the ASME Code has made numerous improvements in elevated-temperature structural integrity technology. These advances have been incorporated into Section II, Section VIII, Code Cases, and particularly Subsection NH of Section III of the Code. The current need for designs for very high temperature and for Gen IV systems requires the extension of operating temperatures from about 1400°F (760°C) to about 1742°F (950°C) where creep effects limit structural integrity, safe allowable operating conditions, and design life. This paper (1)identifies the structural integrity issues in the ASME Boiler and Pressure Vessel Code, including Section II, Section VIII, Section III, Subsection NH (Class 1 Components in Elevated Temperature Service) and Code Cases that must be resolved in order to support licensing of Generation IV Nuclear Reactors, particularly Very High Temperature Gas-Cooled Reactors (VHTRs); (2) describes how the Code addresses these issues; and (3) identifies the needs for additional criteria to cover unresolved structural integrity concerns for very-high-temperature service.
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Persent, Emmanuel, Daniel Averbuch, and Jean Guesnon. "An Improved Methodology for the Design of Marine Drilling Riser Couplings." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-20965.
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The current trend in offshore drilling is a significant increase in water depth in the specification of drilling risers, associated with high density muds. This situation presents a real challenge for the design of the drilling riser which depends to a large extent on these parameters, as well as other related to operational and environmental conditions. In particular, improved design methodologies are required to better assess the margins of riser couplings regarding their static performance and fatigue life. As recommended by API Spec 16R, the stress linearization and classification in one of the key steps to design a riser connector. The designers are encountering some difficulties in the application of this methodology to 3D finite element results. IFP has then proposed a simple approach that applies to non-axisymmetric geometries of connectors. It consists in calculating the membrane and bending stresses in a given plane by averaging over a suitable portion of a cross-section the results of the linearization in the stress classification lines (SCLs) located in the selected plane. A short presentation of a breech-block type riser connector, on which the methodology has been applied, is given at the beginning of this paper. The API specification 16R requirements regarding the design criteria are then discussed. A simple approach to extend the stress linearization and classification methods to three-dimensional FEA is proposed. The proposed methodology is applied to the design of the Clip connector. At last, the R&D work aiming at improving the fatigue analysis of riser connectors is introduced at the end of the paper.
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Roguet, Eleonore, Emmanuel Persent, and Daniel Averbuch. "A Novel Approach for Designing Boltless Connectors - Example on a New Drilling Riser Connector." In Offshore Technology Conference. OTC, 2021. http://dx.doi.org/10.4043/31069-ms.
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Abstract A new method which uses elastic and elasto-plastic Finite Element analyses is developed to design a double breech-block type connector. All relevant criteria proposed by API16F are fulfilled. In addition, plastic and bearing criteria have been added to support the use of lugs for load transfer in the connector. The proposed methodology has been applied and validated through experimental tests at different scales and in particular on laboratory specimens and small-scaled connectors. Based on these last structural tests, a safety factor of almost 8 was obtained for the design method on small-scaled connectors. Prototype tests at scale 1:1 allowed the methodology to be fully validated and a new product to be qualified. Certification bodies validated the whole design process, the employed methodology and the new connector.
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O’Donnell, William J., Amy B. Hull, and Shah Malik. "Historical Context of Elevated Temperature Structural Integrity for Next Generation Plants: Regulatory Safety Issues in Structural Design Criteria of ASME Section III Subsection NH." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61870.
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In 2006, ASME and DOE signed a cooperative agreement to update and expand appropriate materials, construction and design codes for application in future Generation IV nuclear reactor systems that operate at elevated temperatures. The second task in this ASME/DOE Gen-IV Materials Project was to identify issues relevant to ASME Section III, Subsection NH, and related Code Cases that must be resolved for licensing purposes for VHTGRs (Very High Temperature Gas Reactor concepts such as those of PBMR, Areva, and GA); and to identify the material models, design criteria, and analysis methods that need to be added to the ASME Code to cover the unresolved safety issues. The Nuclear Regulatory Commission (NRC) and Advisory Committee on Reactor Safeguards (ACRS) issues which were raised in 1983 in conjunction with the licensing of the Clinch River Breeder Reactor (CRBR) provide the best early indication of regulatory licensing issues for high temperature reactors. The approach to resolve the 25 identified elevated temperature structural integrity licensing issues was never implemented because Congress halted the construction of CRBR. This 1983 list provided the most definitive description of NRC elevated temperature structural integrity concerns. This paper presents both the results of the study by O’Donnell and Griffin [1] and a preliminary analysis by NRC staff of the earlier identified elevated temperature structural integrity issues that attempts to provide updated information for several of the next generation reactor types under consideration.
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O’Donnell, William J., Amy B. Hull, and Shah Malik. "Structural Integrity Code and Regulatory Issues in the Design of High Temperature Reactors." In Fourth International Topical Meeting on High Temperature Reactor Technology. ASMEDC, 2008. http://dx.doi.org/10.1115/htr2008-58061.
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Since the 1980s, the ASME Code has made numerous improvements in elevated-temperature structural integrity technology. These advances have been incorporated into Section II, Section VIII, Code Cases, and particularly Subsection NH of Section III of the Code, “Components in Elevated Temperature Service.” The current need for designs for very high temperature and for Gen IV systems requires the extension of operating temperatures from about 1400°F (760°C) to about 1742°F (950°C) where creep effects limit structural integrity, safe allowable operating conditions, and design life. Materials that are more creep and corrosive resistant are needed for these higher operating temperatures. Material models are required for cyclic design analyses. Allowable strains, creep fatigue and creep rupture interaction evaluation methods are needed to provide assurance of structural integrity for such very high temperature applications. Current ASME Section III design criteria for lower operating temperature reactors are intended to prevent through-wall cracking and leaking and corresponding criteria are needed for high temperature reactors. Subsection NH of Section III was originally developed to provide structural design criteria and limits for elevated-temperature design of Liquid-Metal Fast Breeder Reactor (LMFBR) systems and some gas-cooled systems. The U.S. Nuclear Regulatory Commission (NRC) and its Advisory Committee for Reactor Safeguards (ACRS) reviewed the design limits and procedures in the process of reviewing the Clinch River Breeder Reactor (CRBR) for a construction permit in the late 1970s and early 1980s, and identified issues that needed resolution. In the years since then, the NRC, DOE and various contractors have evaluated the applicability of the ASME Code and Code Cases to high-temperature reactor designs such as the VHTGRs, and identified issues that need to be resolved to provide a regulatory basis for licensing. The design lifetime of Gen IV Reactors is expected to be 60 years. Additional materials including Alloy 617 and Hastelloy X need to be fully characterized. Environmental degradation effects, especially impure helium and those noted herein, need to be adequately considered. Since cyclic finite element creep analyses will be used to quantify creep rupture, creep fatigue, creep ratcheting and strain accumulations, creep behavior models and constitutive relations are needed for cyclic creep loading. Such strain- and time-hardening models must account for the interaction between the time-independent and time-dependent material response. This paper describes the evolving structural integrity evaluation approach for high temperature reactors. Evaluation methods are discussed, including simplified analysis methods, detailed analyses of localized areas, and validation needs. Regulatory issues including weldment cracking, notch weakening, creep fatigue/creep rupture damage interactions, and materials property representations for cyclic creep behavior are also covered.
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Panicker, Philip K., and Amani Magid. "Microwave Plasma Gasification for the Restoration of Urban Rivers and Lakes, and the Elimination of Oceanic Garbage Patches." In ASME 2016 10th International Conference on Energy Sustainability collocated with the ASME 2016 Power Conference and the ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/es2016-59632.
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This review paper describes techniques proposed for applying microwave-induced plasma gasification (MIPG) for cleaning rivers, lakes and oceans of synthetic and organic waste pollutants by converting the waste materials into energy and useful raw materials. Rivers close to urban centers tend to get filled with man-made waste materials, such as plastics and paper, gradually forming floating masses that further trap biological materials and animals. In addition, sewage from residences and industries, as well as rainwater runoff pour into rivers and lakes carrying solid wastes into the water bodies. As a result, the water surfaces get covered with a stagnant, thick layer of synthetic and biological refuse which kill the fish, harm animals and birds, and breed disease-carrying vectors. Such destruction of water bodies is especially common in developing countries which lack the technology or the means to clean up the rivers. A terrible consequence of plastic and synthetic waste being dumped irresponsibly into the oceans is the presence of several large floating masses of garbage in the worlds’ oceans, formed by the action of gyres, or circulating ocean currents. In the Pacific Ocean, there are numerous debris fields that have been labeled the Great Pacific Garbage Patch. These patches contain whole plastic litters as well as smaller pieces of plastic, called microplastics, which are tiny fragments that were broken down by the action of waves. These waste products are ingested by animals, birds and fishes, causing death or harm. Some of the waste get washed ashore on beaches along with dead marine life. The best solution for eliminating all of the above waste management problems is by the application of MIPG systems to convert solid waste materials and contaminated water into syngas, organic fuels and raw materials. MIPG is the most efficient form of plasma gasification, which is able to process the most widest range of waste materials, while consuming only about a quarter of the energy released from the feedstock. MIPG systems can be scaled in size, power rating and waste-treatment capacity to match financial needs and waste processing requirements. MIPG systems can be set up in urban locations and on the shores of the waterbody, to filter and remove debris and contaminants and clean the water, while generating electric power to feed into the grid, and fuel or raw materials for industrial use. For eliminating the pelagic debris fields, the proposed design is to have ships fitted with waste collector and filtration systems that feeds the collected waste materials into a MIPG reactor, which converts the carbonaceous materials into syngas (H2 + CO). Some of the syngas made will be used to produce the electric power needed for running the plasma generator and onboard systems, while the remainder can be converted into methanol and other useful products through the Fischer-Tropsch process. This paper qualitatively describes the implementation schemes for the above processes, wherein MIPG technology will be used to clean up major waste problems affecting the earth’s water bodies and to convert the waste into energy and raw materials in a sustainable and environmentally friendly manner, while reducing the dependence on fossil fuels and the release of carbon dioxide and methane into the atmosphere.
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De la Torre Oliver, Francisco. "Imágenes de otros mundos. La alianza entre pintura y videojuego." In IV Congreso Internacional de Investigación en Artes Visuales. ANIAV 2019. Imagen [N] Visible. Valencia: Universitat Politècnica de València, 2019. http://dx.doi.org/10.4995/aniav.2019.9013.
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La industria del videojuego ha encontrado en la pintura el medio donde visualizar sus propios mundos ¿Podría suponer el desarrollo de los videojuegos AAA una revalorización de la pintura naturalista convirtiendo al concept artist en el nuevo pintor del siglo XXI? Objetivos que nos planteamos:Revisar la creación de imágenes de mundos en la pintura.Estudiar el papel del concept artist en la industria del videojuego.Desarrollar el análisis de un caso práctico actual. El arte tiene la capacidad de representar una imagen del mundo coherente con los planteamientos ideológicos desde los que se desarrolla. La pintura ha satisfecho, a lo largo de su historia, la necesidad del hombre de crear una imagen del mundo, una representación del mundo e imaginar nuevos mundos. Una práctica que conectaría con el concepto de Mundo abierto desarrollado en los videojuegos actuales.Realizaremos una breve revisión de la representación de mundos en la pintura a través de su historia, desde la idealización en la Edad Media a los planteamientos experimentales de la vanguardia artística del siglo XX. Actualmente, el concept artist representaría al agente de la industria del entretenimiento encargado de desarrollar la visualización del mundo en el que se desarrollan los videojuegos. La labor de encarnar estas imágenes se realiza a través de la pintura, mediante técnicas tradicionales o digitales. De este modo, se estaría produciendo una revisión de las claves pictóricas clásicas con el objetivo de resolver problemas de representación actuales, replanteando las relaciones entre arte y diseño o cultura y entretenimiento. Para profundizar en estas cuestiones, planteamos estudiar el caso de Red Dead Redemption 2 y su relación con la Hudson River School.
Reports on the topic "Breede River"
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Frantz, F. S. Clinch River Breeder Reactor Plant: final technical report. Volume 2. Office of Scientific and Technical Information (OSTI), March 1985. http://dx.doi.org/10.2172/707897.
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Author, Not Given. Clinch River Breeder Reactor Plant. Final technical report. Volume 1. Office of Scientific and Technical Information (OSTI), March 1985. http://dx.doi.org/10.2172/708397.
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Author, Not Given. Clinch River Breeder Reactor Plant: hot leg pipe evaluation. Supplement to the primary pipe integrity status report. Office of Scientific and Technical Information (OSTI), January 1985. http://dx.doi.org/10.2172/708377.
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Magoulas, V. E. Feasibility of processing the experimental breeder reactor-II driver fuel from the Idaho National Laboratory through Savannah River Site's H-Canyon facility. Office of Scientific and Technical Information (OSTI), July 2017. http://dx.doi.org/10.2172/1374364.
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