Comparing the Amount of Erosion and Sedimentation in Watersheds Emphasizing Effective Variables in the Basin (Case Study: Catchment Razi)
This study aimed to evaluate the efficiency of EPM and MPSIAC in sediment, Razi catchment area with complex topography and diversity of climatic conditions, rock and vegetation. Part of the required data for the models were collected through laboratory studies, rats and other results (maps and repor...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | fas |
| Published: |
Razi University
2014-05-01
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| Series: | جغرافیا و پایداری محیط |
| Subjects: | |
| Online Access: | https://ges.razi.ac.ir/article_693_041f051a4b506317914744a8ab1de55d.pdf?lang=en |
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| Summary: | This study aimed to evaluate the efficiency of EPM and MPSIAC in sediment, Razi catchment area with complex topography and diversity of climatic conditions, rock and vegetation. Part of the required data for the models were collected through laboratory studies, rats and other results (maps and reports) comprehensive study of the region that have already been made. Digital map maker and other data were entered computer and all necessary modifications and conversions were done (converting the coordinate system UTM), using GIS software. .According to the aforesaid method, all required data were gathered from digitized ones. Digitizing 100-meter digital elevation model (DEM), digitized model of height was prepared which was used to make slope map and some calculations. Then using GIS capacities and based on the structure of each model, arithmetic and processing operations, needed to produce maps, were done to determine sediment. The findings of the model show that this model can estimate (98%) of moderate intensity of observed sediment. However, EPM model can only calculate 69% of observed sediment basin .Based on the model results, class 2 and class 3 have most erosion and most sedimentation basin respectively. |
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| ISSN: | 2322-3197 2676-5683 |