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Dissertations / Theses on the topic 'Soil loss estimation'

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1

Sourlamtas, Konstantinos. "Soil Erosion estimation for the Göta Älv river using remote sensing, GIS and the Revised Universal Soil Loss Equation (RUSLE) model." Thesis, Stockholms universitet, Institutionen för naturgeografi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-175412.

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According to previous studies, the study area of Göta Älv river has high risk of landslides along the river banks due to the water flow. Soil erosion can affect the increase of the landslides in an area with unstable soils caused by the increase rainfall. The Swedish climate is getting more vulnerable thus there is a potential increased risk in erosion and landslides due to unpredictable rainfall intensity. This study aims to calculate soil erosion for the Göta Älv river using the Revised Universal Soil Loss Equation (RUSLE) where a comparison of data from remote sensing and meteorological and
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Rosa, Joel Zubek. "Diagnóstico de processos erosivos em solos agrícolas mediante análise de modelos numéricos do terreno." Universidade Estadual de Ponta Grossa, 2018. http://tede2.uepg.br/jspui/handle/prefix/2689.

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Submitted by Angela Maria de Oliveira (amolivei@uepg.br) on 2018-11-26T20:27:20Z No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Joel Zubek.pdf: 7864320 bytes, checksum: f2e6f06e6ec1c27abd616c5e845d97f8 (MD5)<br>Made available in DSpace on 2018-11-26T20:27:20Z (GMT). No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Joel Zubek.pdf: 7864320 bytes, checksum: f2e6f06e6ec1c27abd616c5e845d97f8 (MD5) Previous issue date: 2018-08-10<br>Entre os principais problemas relacionados à conservação ambiental em
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3

Barros, Enicléia Nunes de Sousa. "Estimativa da erosão hídrica nas bacias hidrográficas dos rios Lontra e Manuel Alves Pequeno, TO." Universidade Federal do Tocantins, 2017. http://hdl.handle.net/11612/418.

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A erosão hídrica constitui um dos principais processos de degradação do solo, com impactos que vão desde a redução da produtividade até a diminuição dos recursos naturais existentes. Nesse sentido, o presente trabalho objetivou avaliar o efeito das alterações no uso do solo, de 1990 a 2007, aplicando o modelo RUSLE para estimar espacialmente o comportamento da erosão do solo para as bacias hidrográficas dos rios Lontra e Manuel Alves Pequeno-TO. A erosão hídrica na bacia do rio Lontra, no ano de 2007, variou de “suave” (51,3%), na região central da bacia, onde o relevo é plano e o uso do solo
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4

Oliveira, Júlio Storion de. "Avaliação de modelos de elevação na estimativa de perda de solo em ambiente SIG." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/11/11143/tde-31052012-075705/.

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O presente trabalho avaliou a utilização de imagens ASTER GDEM e SRTM em substituição a cartas planialtmétricas em escala 1:10000 e 1:50000 como fonte de dados altimétricos para predição de perda de solo em microbacia hidrográfica. Para tanto as imagens com os dados de topografia e demais informações foram incorporadas ao banco de dados do SPRING. Como requisito para estimar perda de solo pela Equação Universal da Perda de Solo, estabeleceu-se o uso atual da terra na microbacia hidrográfica do Ceveiro, situada no município de Piracicaba, SP. Foi constatado que a microbacia é utilizada em sua m
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5

Klopfenstein, Andrew A. "An Empirical Model for Estimating Corn Yield Loss from Compaction Events with Tires vs. Tracks High Axle Loads." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1461316924.

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6

Zhou, Hong. "Integration of Analytical Models for Estimating Sediment Supply and Evaluation of Channel Stability." Ohio University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1456273575.

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7

Basso, Bruna Tauana. "Estimativa de erosão utilizando a Equação Universal de Perdas de Solos (EUPS): o caso do alto curso do rio Chopim." Universidade Estadual do Oeste do Paraná, 2018. http://tede.unioeste.br/handle/tede/4041.

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Submitted by Fabielle Cheuczuk (fabielle.cheuczuk@unioeste.br) on 2018-11-29T18:04:45Z No. of bitstreams: 2 Versão Final.pdf: 3865354 bytes, checksum: c057a961a6b88478a6890a7fc6df2932 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made available in DSpace on 2018-11-29T18:04:45Z (GMT). No. of bitstreams: 2 Versão Final.pdf: 3865354 bytes, checksum: c057a961a6b88478a6890a7fc6df2932 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2018-09-04<br>Conselho Nacional de Pesquisa e Desenvolvimento Científico e Te
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8

Jaramillo, Fernando. "Estimating and modeling soil loss and sediment yield in the Maracas-St. Joseph River catchment with empirical models (RUSLE and MUSLE) and a physically based model (EROSION 3D)." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=18412.

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In Trinidad the implications of high sediment concentrations in the rivers are becoming a major concern. Three models were used to estimate sediment loads from soil loss due to rainfall in the 41 km2 St. Joseph River Catchment. The models were the empirically-based RUSLE and MUSLE for annual and single event loading predictions, respectively and the physically based, Erosion 3D, for single event loading predictions. A hydrologic network was constructed that included an on-line Optical Backscatter sensor (OBS), and a water quality sampler. RUSLE overpredicted the measured sediment yield for th
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9

Pen, Show-Chih, and 彭壽奇. "Estimation of Soil Loss in Watershed." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/87071035443469226634.

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碩士<br>國立交通大學<br>土木工程系<br>89<br>The existed reservoirs in Taiwan are mostly constructed at the middle and upper reaches of the rivers. Frequently due to the steep topography and frail geology or due to improper cultivation and deforestation, they have resulted in serious erosion to the top-soil. The river water carries abundant of sand to the reservoir; subsequently, the latter’s capacity is reducing day by day, which is very disadvantageous to the operation of reservoir. According to the measured results to the sand-depositing volume of reservoir in the past years, the average deposit volume o
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10

陳文欽. "Estimation of Slopeland Soil Loss in Erhjen Creek Watershed." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/65588036761507003636.

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碩士<br>國立中興大學<br>水土保持學系<br>88<br>Due to steep topography, weak geology, heavy rainfall in the typhoon season, tremendous soil loss disaster usually occurs in Taiwan especially at the mudstone areas. Geographic Information System (GIS), Remote Sensing (RS), and Global Positioning System (GPS) coupled with Universal Soil Loss Equation (USLE) were used to estimate watershed soil loss in Erhjen Creek located at mudstone areas. Watershed topographic and hydrologic information of interest was also extracted automatically from Digital Terrain Model (DTM) in this study for the references of slopeland p
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11

Tsai, Zong-Xian, and 蔡宗賢. "Estimation of Sediment Yields from Landslide and its Post Failures Soil Loss in Shihmen Reservoir Watershed." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/12302975629309476623.

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博士<br>國立臺灣大學<br>土木工程學研究所<br>100<br>Landslides generate enormous volumes of sediment in mountainous watersheds; however, quantifying the downstream transport of landslide-derived sediment remains a challenge. This study estimated landslide volumes for the Shihmen Reservoir watershed in Taiwan, for six different time periods, using empirical landslide frequency-area and volume-area relationships. The percentage of total landslide volume reaching streams was estimated using empirical landslide runout models. Fluvial transport of landslide sediment to the reservoir was simulated using the Hydrolog
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12

Mishra, Sobhan. "Application of Universal Soil Loss Equation in Estimation of Sediment Yield(Case study: Upper Mahanadi Catchment, India)." Thesis, 2015. http://ethesis.nitrkl.ac.in/7454/1/126.pdf.

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Soil erosion in the upstream river basins, its transport and deposition play a major role in understanding many activities of global significance. In recent activities of man like interfering with nature, like changing of river course by construction of dams, weirs and barrages have affected the sediment yield. At first the watershed is generated in Arc GIs on spatial data of upper Mahanadi basin by using Raijm as controlling station. Spatial data from upstream of Mahanadi catchment are analyzed for computation of sediment yield. The factor responsible for this variation are also analyzed. Uni
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13

Liou, Ruei-Cheng, and 劉睿呈. "Evaluation of soil losses at Laopi terrace by using Water Erosion Prediction Project (WEPP) model and its validation by in-situ soil loss estimation." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/40435363888488939388.

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碩士<br>國立屏東科技大學<br>水土保持系所<br>104<br>Well understanding of soil erosion situation can help us to make a suitable management strategy in a watershed. Universal Soil Loss Equation (USLE) is a popular equation to predict soil loss contents, but its parameters should be still revised based on local climate conditions, topography and etc.. United State Agricultural Department (USDA) attempts to develop another model, Water Erosion Prediction Project (WEPP), to predict sediment production on slopelands to compensate USEL in precision of soil loss prediction. This study used WEPP model to predict sedim
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14

Wishowski, Jane Marie. "Estimating soil loss from construction sites with the revised universal soil loss equation." 1997. http://catalog.hathitrust.org/api/volumes/oclc/37740014.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1997.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 204-211).
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15

Chen, Sheng-Chyuan, and 陳勝全. "A Study on Estimating Soil Loss and Runoff in a Small Agricultural Watershed after Developing and managing." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/47517695588036598264.

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碩士<br>國立中興大學<br>水土保持學類<br>84<br>The main purpose of slopeland development has changed from simple production to multiple conserving utilization in order to develop a sustainable-slopeland agriculture. The objective of this study is to monitor the soil erosion, runoff and sediment yield after the development of an agricultural watershed in Tainan county. The measured soil erosion, runoff and sediment yield were also compared with output from the AGNPS model. The results are summarized as fol
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16

Mansoor, Kayyum. "Evaluation of the WEPP hillslope profile model for estimating runoff and soil loss for two sites in western Canada." Thesis, 1998. http://hdl.handle.net/2429/8314.

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The Water Erosion Prediction Project (WEPP) is a process based erosion prediction model based on the fundamentals of soil physics, hydrology and biomass prediction designed to replace empirically based soil loss estimators for use with action agencies involved with soil and water conservation and environmental planning and assessment. To better assess and predict soil erosion, the WEPP Hillslope Soil Erosion model (version 95.7) was evaluated with measured runoff and soil loss data from two representative agricultural erosion monitoring sites located in distinctive climatic regions in West
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