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Tesis sobre el tema "Catchment loading"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 20 de febrero de 2023

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1

Bossis, Ryan Christopher. "Application of the SWAT Model to Bacterial Loading rates in Kranji Catchment, Singapore." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/66825.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 89-92).<br>Despite its tropical climate and abundant rainfall, Singapore is classified as a water scarce country. To protect its limited freshwater resources for both consumption and recreation, Singapore's Public Utilities Board (PUB) has created the Active, Beautiful, and Clean (ABC) campaign. In light of this program, the Massachusetts Institute of Technology (MIT) and Nanyang Technological University

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2

Lindgren, Georg. "Physical process effects on catchment-scale pollutant transport-attenuation, coastal loading and abatement efficiency." Doctoral thesis, KTH, Mark- och vattenteknik, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3900.

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Pollutants follow various subsurface and surface water pathways from sources within a catchment to its outlet and may cause detrimental effects on downstream water quality and ecosystems. Along their different transport pathways through a catchment, pollutants may be attenuated subject to different physical and biogeochemical processes. In this thesis, physical process effects on such catchment-scale pollutant transport and attenuation, resulting coastal pollutant loading and its efficient abatement are investigated. For this purpose, pollutant transport-attenuation is modeled both generically

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3

Lindgren, Georg A. "Physical process effects on catchment-scale pollutant transport-attenuation, coastal loading and abatement efficiency /." Stockholm : Department of Land and Water Resources Engineering, Royal Institute of Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3900.

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4

Wadworth-Watts, Henry David. "A hydrological and nutrient load balance for the Lake Clearwater catchment, Canterbury, New Zealand." Thesis, University of Canterbury. Civil and Natural Resources Engineering, 2013. http://hdl.handle.net/10092/7797.

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The Lake Clearwater catchment, in the Canterbury high country of New Zealand, has a native ecosystem that is adapted to low nutrient conditions. Wetlands in the catchment are identified by the Department of Conservation’s Arawai Kākāriki Wetland Restoration Programme as one of three important endemic wetland types in New Zealand. Uncertainty regarding diffuse nutrient load from agriculture into the lake and wetland ecosystems is limiting effective management of the catchment. This study investigated hydrological processes and nitrogen and phosphorus concentrations to improve knowledge of the s

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5

Chingombe, Wisemen. "Effects of land-cover - land-use on water quality within the Kuils - Eerste River catchment." Thesis, University of Western Cape, 2012. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_5893_1373463134.

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<p><span lang="EN-GB" style="font-size: 12.0pt<br>line-height:150%<br>font-family:&quot<br>Times New Roman&quot<br>,&quot<br>serif&quot<br>">The most significant human impacts on the hydrological system are due to land-use change. The conversion of land to agricultural, mining, industrial, or residential uses significantly alters the hydrological characteristics of the land surface and modifies pathways and rates of water flow. If this occurs over large or critical areas of a catchment, it can have significant short and long-term impacts, on the quality of water. While there are methods availa

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6

Singh, Durgesh Kumar. "Assessment of nutrient loading in lake Ringsjön from the catchment of Hörbyån Creek in Southern Sweden." Thesis, KTH, Mark- och vattenteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-171855.

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Lake Ringsjön, located in south of Sweden, has been subject of eutrophication since 1950s and received several restoration efforts. Latest restoration effort, “Project Ringsjön”, was proposed in 2003 to improve lake condition against eutrophication by reducing nutrient concentration. This study was done to assess the nutrient loading into the lake from the catchment of Hörbyån Creek, which is discharging into the lake from southeast. Study addresses the nutrient loading conditions from Hörbyån Creek before and after the implementation of “Project Ringsjön” in 1998 and 2010 respectively. Thus a

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7

Keogh, Andrew James, of Western Sydney Hawkesbury University, Faculty of Science and Technology, and School of Applied and Environmental Sciences. "Systems management of Glenbrook Lagoon, New South Wales." THESIS_FST_AES_Keogh_A.xml, 1996. http://handle.uws.edu.au:8081/1959.7/423.

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Glenbrook Lagoon, an 8 hectare lake receiving rainfall runoff from a residential catchment, is experiencing nutrient enrichment problems expressed as excessive aquatic plant presence. This study aims to assess the relative nutrient contribution of the total system compartments, including catchment loading, water column, aquatic plants and surface sediment. This information is utilised in the formulation of management strategies which may produce a sustainable nutrient reduction and general improvement in the system. The total nutrient content of the aquatic system was determined to be high in

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8

Ayuk, James Ayuk. "Modelling of nonpoint source pollution in the Kuils River Catchment, Western Cape - South Africa." Thesis, University of the Western Cape, 2008. http://hdl.handle.net/11394/3131.

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9

Jaafar, Noraini. "Process-based modelling of river flow and nitrate loadings in the Ythan catchment, Scotland." Thesis, University of Stirling, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244702.

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10

Spooner, Daniel Ron, and n/a. "Nutrient, organic carbon and suspended solid loadings in two ICOLLs, NSW Australia : biogeochemical responses." University of Canberra. Resource, Environmental & Heritage Sciences, 2005. http://erl.canberra.edu.au./public/adt-AUC20070129.130745.

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Intermittently Closed and Open Lake Lagoons (ICOLLs) are very common along the southern NSW coastline. Expanding urban populations are expanding and these systems are under increasing pressure from anthropogenic activities that change landscape processes and significantly alter the amounts of organic and inorganic constituents entering their waters. Once efficient cycling of nutrients in ICOLLs is overcome, the symptoms of eutrophication establish and the entire ecosystem suffers. These systems have great ecological, social, and economic values that require insightful, well balanced, and educa

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11

Baccard, Matthieu. "Estimation of sediment loadings in a small steep tropical catchment impacted by quarrying activities: a case study of the Acono River catchment, Trinidad, West Indies." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=106506.

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On the island of Trinidad, intense anthropogenic activity and inappropriate land use on terrain vulnerable to erosion and rapid runoff lead to severe sedimentation in the watercourses. A major impact is an increase in flood risk during the strong storm events characteristic of the tropical rainy season due to reduced channel capacity. This study addresses the problem of sedimentation in the Acono River in light of the high sediment loadings observed at the outlet of a 6.6 km2 steep catchment where an operating limestone quarry is located. A hydrologic and sediment measurement network was devel

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12

Min-ZhangLi and 李旻展. "Integrating watershed and bio-optical models for linking catchment loading to the depth of Secchi-disk: a case study in Agongdian Reservoir." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/q78hp2.

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碩士<br>國立成功大學<br>環境工程學系<br>106<br>Eutrophication is a common water quality problem of reservoirs in south Taiwan, and most of reservoirs which was identified as the eutrophic reservoir because of low transparency instead of chlorophyll-a. The cause of low transparency are mainly high concentration of suspended solids instead of chlorophyll-a. The strategy of restoring eutrophic reservoirs must be based on science as integrating watershed and bio-optical models for liking catchment loading to the depth of Secchi disk to simulate different load reduction scenarios. Therefore, this study was integ

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13

Van, Deventer Ross. "Impact of land use on water quality and aquatic ecosystem health of stream networks in the upper uMngeni catchment feeding Midmar Dam, KwaZulu-Natal, South Africa." Thesis, 2012. http://hdl.handle.net/10413/9492.

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Freshwater in adequate supply and quality is vital to life on Earth; however, land-based activities such as development, agriculture, mining and industry, and their associated contaminants, pose a major threat to the quality of freshwater water resources and health of aquatic ecosystems. The upper uMngeni catchment draining into Midmar Dam is a strategically significant water resource, supplying clean drinking water to the eThekwini, uMgungundlovu and Msunduzi municipalities. The quality of this resource is under threat from current land-based activities such as Mpophomeni settlement and agric

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14

Keogh, Andrew J. "Systems management of Glenbrook Lagoon, New South Wales." Thesis, 1996. http://handle.uws.edu.au:8081/1959.7/423.

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Glenbrook Lagoon, an 8 hectare lake receiving rainfall runoff from a residential catchment, is experiencing nutrient enrichment problems expressed as excessive aquatic plant presence. This study aims to assess the relative nutrient contribution of the total system compartments, including catchment loading, water column, aquatic plants and surface sediment. This information is utilised in the formulation of management strategies which may produce a sustainable nutrient reduction and general improvement in the system. The total nutrient content of the aquatic system was determined to be high in

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15

Zhao, Guangju [Verfasser]. "Development and application of a non-point sources pollution model for hydrological processes and nutrient loadings in the Xitiaoxi catchment in South China / vorgelegt von Guangju Zhao." 2011. http://d-nb.info/1010561669/34.

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