Application of Geographic Information System (GIS) in Soil Erosion Prediction: A Case Study of the Sg. Weng Experimental Watersheds
A study was carried out to assess soil erosion under natural forest in watershed using the Universal Soil Loss Equation (USLE) model within a Geographic Information System (GIS) environment. The Sg. Weng Experimental Watershed, located within Hulu Muda Forest Reserve, Kedah, Malaysia was chosen...
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2002
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my-upm-ir.101102024-03-13T04:36:32Z Application of Geographic Information System (GIS) in Soil Erosion Prediction: A Case Study of the Sg. Weng Experimental Watersheds 2002-08 Tan, Albert Thean Wei A study was carried out to assess soil erosion under natural forest in watershed using the Universal Soil Loss Equation (USLE) model within a Geographic Information System (GIS) environment. The Sg. Weng Experimental Watershed, located within Hulu Muda Forest Reserve, Kedah, Malaysia was chosen for this study. The study area comprised four watersheds namely Watershed 1 (2.6 sq. Ion), Watershed 2 (8.4 sq. Ion), Watershed 3 (7.6 sq. Ion) and Watershed 5 (42.1 sq. Ian). The USLE model consists of five factors namely rainfall erosivity (R), soil erodibility (K), length slope (LS), crop management (C) and support practice (P) factors. The R factor was obtained based on four methods namely Morgan (1974), Balamurugan (1990), Roose (1977) and rainfall equal or exceeding 25 mmIhr (this study). Using a regular grid of Digital Elevation Model (OEM), a method based on the maximum downhill slope and cumulative slope length was used for calculating the LS factor. K factor was obtained from Department of Agriculture, Kedah based on five soil series. The C and P were combined into a single factor called vegetation management (VM). The values obtained for each parameter were later converted to raster layers for modeling the soil erosion. Geographic information systems - Soil erosion - Kedah - Sg. Weng Watershed - Case studies 2002-08 Thesis http://psasir.upm.edu.my/id/eprint/10110/ http://psasir.upm.edu.my/id/eprint/10110/1/FH_2002_16.pdf text en public masters Universiti Putra Malaysia Geographic information systems - Soil erosion - Kedah - Sg. Weng Watershed - Case studies Faculty of Forestry Lai, Food See English |
| institution |
Universiti Putra Malaysia |
| collection |
PSAS Institutional Repository |
| language |
English English |
| advisor |
Lai, Food See |
| topic |
Geographic information systems - Soil erosion - Kedah - Sg Weng Watershed - Case studies |
| spellingShingle |
Geographic information systems - Soil erosion - Kedah - Sg Weng Watershed - Case studies Tan, Albert Thean Wei Application of Geographic Information System (GIS) in Soil Erosion Prediction: A Case Study of the Sg. Weng Experimental Watersheds |
| description |
A study was carried out to assess soil erosion under natural forest in
watershed using the Universal Soil Loss Equation (USLE) model within a
Geographic Information System (GIS) environment. The Sg. Weng Experimental
Watershed, located within Hulu Muda Forest Reserve, Kedah, Malaysia was chosen
for this study. The study area comprised four watersheds namely Watershed 1 (2.6
sq. Ion), Watershed 2 (8.4 sq. Ion), Watershed 3 (7.6 sq. Ion) and Watershed 5 (42.1
sq. Ian).
The USLE model consists of five factors namely rainfall erosivity (R), soil
erodibility (K), length slope (LS), crop management (C) and support practice (P)
factors. The R factor was obtained based on four methods namely Morgan (1974),
Balamurugan (1990), Roose (1977) and rainfall equal or exceeding 25 mmIhr (this
study). Using a regular grid of Digital Elevation Model (OEM), a method based on
the maximum downhill slope and cumulative slope length was used for calculating
the LS factor. K factor was obtained from Department of Agriculture, Kedah based on five soil series. The C and P were combined into a single factor called vegetation
management (VM). The values obtained for each parameter were later converted to
raster layers for modeling the soil erosion. |
| format |
Thesis |
| qualification_level |
Master's degree |
| author |
Tan, Albert Thean Wei |
| author_facet |
Tan, Albert Thean Wei |
| author_sort |
Tan, Albert Thean Wei |
| title |
Application of Geographic Information System (GIS) in Soil Erosion Prediction: A Case Study of the Sg. Weng Experimental Watersheds |
| title_short |
Application of Geographic Information System (GIS) in Soil Erosion Prediction: A Case Study of the Sg. Weng Experimental Watersheds |
| title_full |
Application of Geographic Information System (GIS) in Soil Erosion Prediction: A Case Study of the Sg. Weng Experimental Watersheds |
| title_fullStr |
Application of Geographic Information System (GIS) in Soil Erosion Prediction: A Case Study of the Sg. Weng Experimental Watersheds |
| title_full_unstemmed |
Application of Geographic Information System (GIS) in Soil Erosion Prediction: A Case Study of the Sg. Weng Experimental Watersheds |
| title_sort |
application of geographic information system (gis) in soil erosion prediction: a case study of the sg. weng experimental watersheds |
| granting_institution |
Universiti Putra Malaysia |
| granting_department |
Faculty of Forestry |
| publishDate |
2002 |
| url |
http://psasir.upm.edu.my/id/eprint/10110/1/FH_2002_16.pdf |
| _version_ |
1794018868018020352 |