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Thèses sur le sujet « Seedling regeneration »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 2 février 2022

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1

Welling, P. (Pirjo). "Regeneration by seeds and vegetation structure in alpine plant communities, subarctic Finland." Doctoral thesis, University of Oulu, 2002. http://urn.fi/urn:isbn:951426861X.

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Abstract The aims were to examine the importance of regeneration by seeds, the influence of plant traits and disturbances, and the role of seed-seedling conflicts in regeneration and in the determination of vegetation structure. The study was carried out at in a subarctic alpine area (Kilpisjärvi 69°01'N 20°50E', Finland). Seed bank and seedling densities were high in many plant communities (ranges 99 -1109 viable seeds/m2 and 0.2-227 seedlings/m2, respectively). Effective seedling recruitment is reflected in vegetation as a high proportion of plants with poor or no vegetative reprodu

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2

Hanley, Michael Edward. "The influence of molluscan herbivory on seedling regeneration in grassland." Thesis, University of Southampton, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296377.

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3

MacAllister, Sarah Louise. "Regeneration of Scots pine (Pinus sylvestris L.) under drought." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/19560.

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Drought-induced tree mortality is a phenomenon affecting many forest ecosystems and is predicted to increase under ongoing climate change. Forest stability partly depends on regeneration: the process of renewing mature forest with subsequent generations. As seedlings are more susceptible to drought effects than mature trees, mortality of the seedling bank can represent a major bottleneck controlling forest structure and species composition. Scots Pine (Pinus sylvestris L.) is the most widely distributed of the Pinus species, covering a broad latitudinal gradient of ecological conditions. The t

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4

Mallinson, Julian Robert. "The impact of herbivores on the natural regeneration of temperate deciduous woodland." Thesis, Durham University, 1999. http://etheses.dur.ac.uk/4591/.

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Many studies have reported deficient or intermittent patterns of natural regeneration in temperate deciduous woodland. The present study aimed to assess the relative impact of herbivore-mediated plant mortality on the natural regeneration dynamics of representative tree species (Acer pseudoplatanus, Betula pendula, Fraxinus excelsior, Ilex aquifolium, Sorbus aucuparia, Taxus baccata and Ulmus glabra) in representative temperate deciduous woodland (Shipley Wood and Derwent Gorge, County Durham). Sapling density and the density, spatial association and size distribution of adult tree populations

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5

Holgén, Per. "Seedling performance, shelter tree increment and recreation values in boreal shelterwood stands /." Umeå : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5854-4.pdf.

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6

West, Lee. "Effects of Soil Fungi on Tree Seedling Establishment in a Southeastern Coastal Plain Forest." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/46180.

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Effects of fungi and overstory composition on tree seedling survival and growth were investigated in closed canopy upland forests in the coastal plain of South Carolina. Seedlings of Quercus alba, Cornus florida and Pinus taeda were planted in the understory of two forest types -naturally regenerated hardwood and planted pine. Fungal species composition and biomass were experimentally manipulated with a treatment of the fungicide captan. In contrast with other studies conducted in different systems (sand dune, grassland, and old field), the effects of soil fungi were minor in a closed can

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7

Warrillow, Michael P. "Ecological Impact of Glaze Storm Damage in an Appalachian Oak Forest." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/31507.

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Glaze damage to canopy trees, gap size and seedling regeneration was surveyed relating to site topographic features after a major glaze storm at Fishburn Forest in the central Appalachian mountain region. The survey sites were stratified according to aspect and landform, and sample plots were randomly assigned to each topographic category. The canopy trees in the plots were tallied and their damage was visually classified. The results demonstrated that different species had different susceptibilities to glaze damage and susceptibility of species varied as topography changed. Virginia pine w

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8

Pearce, Christopher Deane. "Effectiveness of Treatments to Reduce Rhododendron maximum and Promote Tree Seedling Regeneration in the Southern Appalachians." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/41885.

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Rosebay rhododendron (Rhododendron maximum L.) is an evergreen ericaceous shrub that plays a dynamic role in the southern Appalachian forests. Commonly located on mesic sites, this understory shrub forms dense thickets that greatly reduce the amount of light available to herbaceous and woody plants found on the forest floor. Past research has shown that silvicultural methods can be used to eradicate R. maximum, however it is unclear which of these methods is most efficient and what effects other than stem mortality may occur. In this study, treatments involving prescribed fire, mechanical cutt

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9

Frankenberg, Sarah J. "Fire, Forest, Ice, and Fungi: Exploring The Mesh Of Relationships Driving Seedling Regeneration In The Siberian Arctic." University of Dayton / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1596147602477988.

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10

White, Helen Marie. "Biotic and Abiotic Factors of Picea rubens (Red Spruce) Seedling Regeneration in Disturbed Heathland Barrens of the Central Appalachians." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/101088.

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During the late 19th and early 20th centuries, extensive logging reduced the forests of red spruce (Picea rubens) by nearly 99% through portions of West Virginia. In the wake of this disturbance, red spruce has begun regenerating on the ridge and mountaintop areas of Canaan Valley, West Virginia, where heath and grassland communities have both persisted in natural barrens and expanded into formerly forested areas. To understand abiotic and biotic conditions guiding the advance of the red spruce stand, I conducted a broad-scale assessment of thirty-one demographics plots spread across two sites

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11

Young, Laura May. "Seed dispersal mutualisms and plant regeneration in New Zealand alpine ecosystems." Thesis, University of Canterbury. School of Biological Sciences, 2012. http://hdl.handle.net/10092/6992.

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The New Zealand alpine zone has many fleshy-fruited plant species, but now has a relatively depauperate animal fauna. The key question is, therefore, are native alpine plants still being dispersed, if so where to and by what? I first measured fruit removal rates among nine common species using animal-exclusion cages to compare natural fruit removal by all animals, and by lizards only. Over two years, mean percent of fruit removed by early winter ranged from 25–60% among species. Speed of fruit removal also varied depending on species. Secondly, I quantified which animals disperse (or predate)

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12

Thompson, Jesse Warren. "Effects of understory vegetation manipulation on hardwood regeneration recruitment and growth in southern Appalachian forests." Thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-08292008-063440/.

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13

Albro, Sandra Leigh. "Effects of Canopy Adult Trees on Seedling Recruitment of American Beech and Sugar Maple in Fragmented Forests." Cleveland, Ohio : Case Western Reserve University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=case1238695571.

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14

Malmqvist, Cecilia. "Planting and survivability of Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) in Sweden : Questions of seedling storability, site preparation, bud burst timing and freezing tolerance." Doctoral thesis, Linnéuniversitetet, Institutionen för skog och träteknik (SOT), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-59933.

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The non-native Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) has been grown to a limited extent in the southern part of Sweden since the early 1900s. A more extensive use has probably been curtailed by its known susceptibility to damage by frost, pine weevil and other pests. Limited access to vital seedlings of suitable provenances has also restricted its more widespread growth. The need for valuable species that will grow well through ongoing climate change has increased the interest for Douglas fir in Sweden. This thesis addresses a number of important questions relating to the planting

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15

Jacques, Rochelle R. "Effects of Microstegium vimineum (Trin.) A. Camus (Asian stiltgrass; Poaceae) on native hardwood seedling growth and survival." Ohio : Ohio University, 2007. http://www.ohiolink.edu/etd/view.cgi?ohiou1180715972.

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16

Roselli, Sasha Mahani. "The role of seed dispersal, seed predation and drought in the restoration of Ngel Nyaki Forest, Nigeria." Thesis, University of Canterbury. School of Biological Sciences, 2014. http://hdl.handle.net/10092/9967.

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Abstract The restoration of degraded landscapes has become one of our most valuable tools for conservation, however there are many factors which can restrict natural regeneration and impede active restoration attempts. The purpose of this study was to investigate three key processes which commonly limit the establishment of forest tree species into abandoned pasture in tropical forests: i) dispersal limitation, ii) seed predation, and iii) competition from the grass sward. Seed dispersal I identified 59 species of birds that were using the grassland habitat. Through 216 hours of focal tree o

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17

Hackworth, Zachary J. "EFFICACY OF HERBIVORE EXCLUSION ON PLANTED TREE SEEDLING VITALITY ON A RECLAIMED SURFACE MINE IN EASTERN KENTUCKY." UKnowledge, 2018. https://uknowledge.uky.edu/forestry_etds/41.

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Conventional Appalachian surface-mine reclamation techniques repress natural forest regeneration, and tree plantings are often necessary for reforestation. Reclaimed Appalachian surface mines harbor a suite of mammal herbivores that forage on recently planted seedlings. Anecdotal reports across Appalachia have implicated herbivory in the hindrance and failure of reforestation efforts, yet empirical evaluation of herbivory impacts on planted seedling vitality in this region remains relatively uninitiated. First growing-season survival, height growth, and mammal herbivory damage of black locust

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18

Hoshizaki, Kazuhiko. "Regeneration dynamics of a sub-dominant tree Aesculus turbinata in a beechdominated forest : Interactions between large-seeded tree guild and seed/seedling consumer guild." 京都大学 (Kyoto University), 1999. http://hdl.handle.net/2433/181995.

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19

Hoven, Brian Michael. "The Effect of Emerald Ash Borer (Agrilus Planipennis)-Caused Ash Mortality and White-Tailed Deer Abundance on Understory Invasive Shrubs and Forest Regeneration." Miami University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=miami1627656584529987.

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20

Carril, Dennis Frank. "Effects of Repeated Prescribed Fire and Thinning From Below on Understory Components of Southern Illinois Oak-Hickory Forests." OpenSIUC, 2009. https://opensiuc.lib.siu.edu/theses/24.

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Fire has influenced species composition within the Central Hardwood Forest for millennia. Since the last glacial retreat, Native Americans followed by European settlers used fire as a tool to manipulate their environment. This fire use by humans helped maintain the dominance of well-adapted oak-hickory species across eastern forests. By the 1940's, land fragmentation from increased settlement and actively enforced suppression policies effectively eliminated fire from the landscape. Without the disturbance of recurrent fire that alters succession, the fertile loess-capped hills of southern

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21

Bertacchi, Maria Isabel Ferreira. "Micro-sítio como filtro para o estabelecimento de regenerantes arbóreos em áreas restauradas." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/11/11150/tde-14022012-093157/.

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As características da regeneração natural no sub-bosque de comunidades florestais em processo de restauração expressam os principais indicadores de sucesso dos projetos de restauração ecológica, sendo que a ausência ou a baixa qualidade de regeneração natural são os principais gargalos para a perpetuação de projetos inseridos em paisagens muito fragmentadas. No entanto, condições adversas de micro-sítio de regeneração sob plantios de restauração podem restringir a colonização do sub-bosque por espécies nativas, comprometendo a sua perpetuação no tempo. O objetivo desse estudo foi avaliar se, e

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22

Albrecht, Matthew A. "Reproductive Biology of Medicinal Woodland Herbs Indigenous to the Appalachians." Ohio : Ohio University, 2006. http://www.ohiolink.edu/etd/view.cgi?ohiou1163427974.

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23

Wong, Wai-ting. "Propagating native tree seedlings for forest rehabilitation in Hong Kong, China." Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B37670578.

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24

Petersson, Magnus. "Regeneration methods to reduce pine weevil damage to conifer seedlings /." Alnarp : Southern Swedish Forest Research Centre, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/s330.pdf.

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25

Brearley, Francis Q. "The role of ectomycorrhizas in the regeneration of dipterocarp seedlings." Thesis, University of Sheffield, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.422176.

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26

Jafarsidik, Yusuf. "Regeneration of the forest after logging at Kintap, South Kalimantan, Indonesia." Thesis, University of Stirling, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321989.

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27

Ogilvy, Tanya. "Regeneration ecology of broadleaved trees in Caledonian Forest." Thesis, University of Edinburgh, 2004. http://hdl.handle.net/1842/831.

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This thesis quantifies aspects of shade tolerance in tree seedlings of species native to the Caledonian pinewood ecosystems of Glen Affric (Highland Region, Inverness-shire). Growth, allocation and morphological responses of 15 species to irradiance under simulated forest canopy light were investigated in a nursery-based shade house experiment. The same responses of four of the 15 species (Ilex aquifolium, Alnus glutinosa, Sorbus aucuparia and Betula pubescens) to different developmental stages of Pinus sylvestris woodland were investigated in the field. The spatial and temporal growth respons

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28

Eichhorn, Markus Peter. "Insect herbivory and the regeneration of Dipterocarp seedlings in a Malaysian rainforest." Thesis, University of Leeds, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.396680.

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29

Huth, Franka. "Untersuchungen zur Verjüngungsökologie der Sand-Birke (Betula pendula Roth)." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-27734.

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- Ziele der Arbeit - Das primäre Ziel der vorliegenden Arbeit bestand in einer möglichst umfassenden Be-schreibung einzelner Entwicklungsstadien im Verjüngungszyklus von Betula pendula Roth. Dabei waren die lokalen Bestandes- und Standortsbedingungen im Untersuchungsgebiet in besonderer Weise zu berücksichtigen. Des Weiteren sollten Optionen zur waldbaulichen Integration der Sand-Birkenverjüngung in bestehende Behandlungskonzepte für in Auflösung befindliche Fichtenaltbestände aufgezeigt werden. - Untersuchungsgebiet - Der Tharandter Wald liegt im Freistaat Sachsen (50° 55’-50° 00’n. Br., 13°

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Wong, Wai-ting, and 黃煒婷. "Propagating native tree seedlings for forest rehabilitation in Hong Kong, China." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B37670578.

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31

Cohen, Susan Alese. "Regenerating Longleaf Pine on Hydric Soils - Short-Term Effects on Soil Properties and Seedling Establishment." NCSU, 2008. http://www.lib.ncsu.edu/theses/available/etd-04282008-191226/.

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Restoring longleaf pine ecosystems is essential for managing rare plant and animal species and protecting biological diversity in the southeastern Coastal Plain of the United States. Natural longleaf pine ecosystems range from xeric uplands to poorly-drained flatwoods and savannas. Most existing stands, however, occur on xeric to dry-mesic sites and approaches to restoring longleaf pine to wetter sites traditionally utilize intensive practices. There is little information available on the efficacy of these practices to establish longleaf pine seedlings on poorly-drained sites and their impacts

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Wallertz, Kristina. "Pine weevil feeding in Scots pine and Norway spruce regenerations /." Alnarp : Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, 2009. http://epsilon.slu.se/200960.pdf.

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33

Zida, Didier. "Impact of forest management regimes on ligneous regeneration in the Sudanian savanna of Burkina Faso /." Umeå : Dept. of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/200766.pdf.

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34

O'Brien, Cristin L. "Revegetating Blackwoods Campground, Acadia National Park: Emphasis on Natural Regeneration of Red Spruce and Balsam Fir." Fogler Library, University of Maine, 2005. http://www.library.umaine.edu/theses/pdf/ObrienCL2005.pdf.

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35

Van, Coller Alan. "Light microsite requirements of seedlings of some Afromontane forest tree species: the role of canopy gaps promoting regeneration." Bachelor's thesis, University of Cape Town, 1989. http://hdl.handle.net/11427/25918.

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Predictions of microsite requirements for seven common Afromontane forest tree species were made by testing above ground relative growth rate (RGR) and photosynthetic response of seedlings of the respective species under different light intensities. Virgilia oroboides and Halleria lucida, with either a very high photosynthetic rate or RGR, were regarded to be pioneer species. Podocarpus latifolius was regarded to be a deep shaded species due to its low photosynthetic and RGR's. Rapanea melanophloeos, Ilex mitis, Olea capensis sub Ssp. macrocarpa and Kiggelaria africana either had moderately hi

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36

Taniguchi, Takeshi. "Studies on the effects of nitrogen-fixing tree, Robinia pseudoacacia on the regeneration and ectomycorrhizal symbiosis of Pinus thunbergii seedlings." Kyoto University, 2008. http://hdl.handle.net/2433/136634.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第13907号<br>農博第1722号<br>新制||農||957(附属図書館)<br>学位論文||H20||N4374(農学部図書室)<br>UT51-2008-C823<br>京都大学大学院農学研究科地域環境科学専攻<br>(主査)教授二井一禎, 教授武田博清, 教授縄田栄治<br>学位規則第4条第1項該当

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37

Romell, Eva. "Artificial canopy gaps and the establishment of planted dipterocarp seedlings in Macaranga spp. dominated secondary tropical rain forests of Sabah, Borneo /." Umeå : Dept. of Forest Ecology and Management, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/10322511.pdf.

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Kertenis, Andrius. "Paprastosios pušies (Pinus sylvestris L.) žėlimo ypatumai po atvejinių kirtimų Varėnos miškų urėdijos privačių miškų Na augavietėse." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120621_142512-35356.

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Magistro darbe įvertintos Varėnos rajone Na augavietėje augančių pušynų atsikūrimo galimybės praėjus 2-7 metams po atvejinių kirtimų pirmo atvejo. Darbo objektas – atvejiniais kirtimais išretinti 0,6-0,7 skalsumo pušynai Varėnos miškų urėdijos Zervynų, Ūlos, Marcinkonių ir Musteikos girininkijose. Į apskaitą pateko 7 sklypai, kurių plotas svyravo nuo 0,8 iki 22,7 hektarų. Pušies medynų amžius buvo 100-130 metų, bonitetas II-IV. Darbo tikslas – įvertinti pušynų žėlimo galimybes Varėnos miškų urėdijos pušies medynuose, kirstuose supaprastintais dviejų atvejų atvejiniais kirtimais. Darbo metodai.

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Klinka, Karel, Gordon J. Kayahara, and Christine Chourmouzis. "Regeneration, growth and productivity of trees within gaps of old-growth forests on the outer coast (CWHvh2) of British Columbia." Forest Sciences Department, University of British Columbia, 2001. http://hdl.handle.net/2429/669.

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Central to the issue of harvest feasibility on the outer BC coast (CWHvh) is the question of whether sites, once harvested, can be regenerated, and whether the time period for replacement and subsequent growth is economically and environmentally acceptable. Since low productivity sites have not been harvested in the past, there is a lack of data to answer this question. We tried to provide an answer by assessing regeneration following natural disturbances. Small scale gap disturbances are the norm within old-growth stands. If regeneration is not a problem in gaps, then we have some evidence th

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Thornton, Rory Owen. "Evaluation of willow oak acorn production and the effects of midstory control and flooding on underplanted willow oak seedlings in two Arkansas greentree reservoirs." Master's thesis, Mississippi State : Mississippi State University, 2009. http://library.msstate.edu/etd/show.asp?etd=etd-03312009-135925.

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41

Hayden, Heather Lyn. "The Erosion of Coastal Sediment and Regeneration of Rhizophora mangle Following Anthropogenic Disturbance on Turneffe Atoll, Belize." PDXScholar, 2015. https://pdxscholar.library.pdx.edu/open_access_etds/2365.

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As communities and managers become aware of the long-term impacts of mangrove loss, estimated at 1-2% per year, interest in sediment erosion and mangrove rehabilitation has increased substantially. In this thesis project I 1) examine erosion rates within coastal fringing Rhizophora mangle ecosystems following mangrove clearing and compare these rates to accretion rates in intact mangroves; and 2) investigate the abiotic factors influencing mangrove seedling survival and regeneration of naturally colonizing R. mangle, in historic mangrove habitat after anthropogenic clearing. Differences in ero

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42

Wallertz, Kristina. "Pine weevil Hylobius abietis feeding in shelterwood systems /." Alnarp : Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/10040784.pdf.

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Faria, Mariana Brando Balazs da Costa. "Diversidade e regeneração natural de árvores em florestas de restinga na ilha do Cardoso, Cananéia, SP, Brasil." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/41/41134/tde-15122008-101351/.

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Esta dissertação teve como objetivo analisar a dinâmica de regeneração natural de três formações florestais de restinga (uma Floresta de Restinga Alta Seca - RAS; uma Floresta de Restinga Alta Alagada - RAA; e uma Floresta de Restinga Baixa - RB) com diferentes condições edáficas, composições florísticas e estruturas, da Ilha do Cardoso, Cananéia, SP. Ao longo de um ano, procuramos entender os mecanismos que promovem as variações na composição e estrutura arbórea desses três sistemas. Para isso, entre fevereiro de 2007 e janeiro de 2008 nós acompanhamos a chuva de sementes das três florestas a

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44

Santos, Bruna Silva. "Comunidade de regeneração natural de uma área de cerradão /." Bauru, 2020. http://hdl.handle.net/11449/192546.

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Orientador: Veridiana de Lara Weiser Bramante<br>Resumo: O Cerrado é considerado um dos 25 hotspots mundiais, uma das áreas prioritárias para a conservação da biodiversidade mundial, por apresentar uma alta biodiversidade, um alto grau de endemismo e suas espécies estarem ameaçadas de extinção. Sendo assim, é fundamental o desenvolvimento de estudos na vegetação de cerrado para subsidiar trabalhos de conservação, manejo e restauração ecológica. O presente estudo visou conhecer as espécies que constituem o estrato de regeneração natural de uma área de cerradão na Gleba II do Refúgio de Vida Flo

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Nogueira, Wanda Lemos Paixão. "Métodos para regeneração de áreas alteradas na fazenda experimental da Universidade Federal do Amazonas – Amazônia Central." Universidade Federal do Amazonas, 2015. http://tede.ufam.edu.br/handle/tede/4602.

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Submitted by Kamila Costa (kamilavasconceloscosta@gmail.com) on 2015-08-21T13:32:36Z No. of bitstreams: 1 Dissertação - Wanda L P Nogueira.pdf: 1028716 bytes, checksum: 49e3f0e14129c7efe528c410c9f8734f (MD5)<br>Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2015-08-28T20:30:25Z (GMT) No. of bitstreams: 1 Dissertação - Wanda L P Nogueira.pdf: 1028716 bytes, checksum: 49e3f0e14129c7efe528c410c9f8734f (MD5)<br>Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2015-08-28T20:36:12Z (GMT)

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Sccoti, Marta Silvana Volpato. "MECANISMOS DE REGENERAÇÃO NATURAL EM FLORESTA ESTACIONAL DECIDUAL, SANTA MARIA, RS." Universidade Federal de Santa Maria, 2009. http://repositorio.ufsm.br/handle/1/8644.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>This study evaluated the mechanisms of natural regeneration represented by seeds rain, seeds bank of the soil and the regeneration vegetation, considering the seedlings bank and the established regeneration, in a fragment of Estacional Decidual Forest. The evaluation was made with 70 randomized samplings in 14 parcels inside four bands, with systematic distribution in the area. The seeds rain was studied using 70 collectors with 1 m x 1 m, the collected material was analyzed monthly, during a year. In the seeds bank was collect 70

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Nave, André Gustavo. "Banco de sementes autóctone e alóctone, resgate de plantas e plantio de vegetação nativa na fazenda Intermontes, município de Ribeirão Grande, SP." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/11/11150/tde-02062005-153506/.

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O acúmulo significativo de conhecimento sobre a ecologia de restauração nos últimos anos tem conduzido a mudanças na orientação dos programas de manejo e restauração florestal. A escolha ou criação de um modelo de restauração é um processo em constante aprimoramento, exigindo a necessidade de estudos que não apenas diminuam os custos envolvidos, mas também, que garantam a efetividade do objetivo proposto. Neste sentido, este trabalho testa novas metodologias de restauração visando a obtenção de informações técnicas sobre: A) a expressão do banco de sementes autóctone e alóctone na restauraçã

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Li, Sung-Po, and 李松柏. "Seedling regeneration in Nanjenshan subtropical rain forest." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/54381737845689853569.

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碩士<br>國立臺灣大學<br>植物學研究所<br>83<br>Seedling dynamics were studied in thirty small piots of 5×1㎡ in a 3-ha permanent plot established in Nanjenshan subtropical rain forest on Hengchun peninsula, tagged, identified, measured and recensused every month. A total of 3500 seedlings in 73 species were analyzed by 14censuses and survivorship of all tagged seedlings was 69.94%. Survivorship of the first census was 80.75%, comprising 1673 individuals of mixed ages and species. The density varied seasonally by birth and death of seedlings. There were two main

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Lin, Chi Chen, and 林其臻. "Characteristics of Seed Germination and Seedling Regeneration of Leucaena leucocephala." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/47947821078106423878.

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碩士<br>國立屏東科技大學<br>森林系所<br>99<br>Abstract Student ID: M9712016 Title of Thesis: Characteristics of Seed Germination and Seedling Regeneration of Leucaena leucocephala Total Page: 52 Name of Institute: Department of Forest, National Pingtung University of Science and Technology Graduate Date: July 8, 2011 Degree Conferred: Master Name of student: Chi- Chen Lin Adviser: Dr. Yan-Lun Kuo The Contents of Abstract in This Thesis: Leucaena leucocephala is among the 100 of the World's Worst Invasive Alien Species, and its invasiveness in Hengchun is extremely severe—with l

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McKenna, John. "The effects of multiple resources on forest regeneration: Microsite variation and seedling response." 2007. https://scholarworks.umass.edu/dissertations/AAI3254955.

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Forest gaps play a major role in forest dynamics because increased resource availability favors plant species that differ from those in undisturbed forest. This dissertation investigates the spatial heterogeneity of resource availability in gaps, how it varies by site, and how it affects regeneration. Gap effects on resource availability and seedling growth were studied at three sites, which differed in drainage, using large gaps (108 m × 30 m) where light ranged from understory shade to full sun. Light levels in plots were measured using hemispherical photos; soil moisture, with a capacitance

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