Comparison of the Effects of the Different Methods for Computing the Slope Length Factor at a Watershed Scale
The slope length factor is one of the parameters of the Universal Soil Loss Equation (USLE) and the Revised Universal Soil Loss Equation (RUSLE) and is sometimes calculated based on a digital elevation model (DEM). The methods for calculating the slope length factor are important because the values...
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| Autor*in: |
Fu Suhua [verfasserIn] Wu Zhiping [verfasserIn] Liu Baoyuan [verfasserIn] Cao Longxi [verfasserIn] |
|---|
| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2013 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
In: International Soil and Water Conservation Research - KeAi Communications Co., Ltd., 2016, 1(2013), 2, Seite 64-71 |
|---|---|
| Übergeordnetes Werk: |
volume:1 ; year:2013 ; number:2 ; pages:64-71 |
| Links: |
|---|
| DOI / URN: |
10.1016/S2095-6339(15)30040-X |
|---|
| Katalog-ID: |
DOAJ054396824 |
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| 520 | |a The slope length factor is one of the parameters of the Universal Soil Loss Equation (USLE) and the Revised Universal Soil Loss Equation (RUSLE) and is sometimes calculated based on a digital elevation model (DEM). The methods for calculating the slope length factor are important because the values obtained may depend on the methods used for calculation. The purpose of this study was to compare the difference in spatial distribution of the slope length factor between the different methods at a watershed scale. One method used the uniform slope length factor equation (USLFE) where the effects of slope irregularities (such as slope gradient, etc.) on soil erosion by water were not considered. The other method used segmented slope length factor equation(SSLFE) which considered the effects of slope irregularities on soil erosion by water. The Arc Macro Language (AML) Version 4 program for the revised universal soil loss equation(RUSLE).which uses the USLFE, was chosen to calculate the slope length factor. In a parallel analysis, the AML code of RUSLE Version 4 was modified according to the SSLFE to calculate the slope length factor. Two watersheds with different slope and gully densities were chosen. The results show that the slope length factor and soil loss using the USLFE method were lower than those using the SSLFE method, especially on downslopes watershed with more frequent steep slopes and higher gully densities. In addition, the slope length factor and soil loss calculated by the USLFE showed less spatial variation. | ||
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10.1016/S2095-6339(15)30040-X doi (DE-627)DOAJ054396824 (DE-599)DOAJ1558f6e2a4124b2aaf9542a4e2e7af84 DE-627 ger DE-627 rakwb eng TA1-2040 Fu Suhua verfasserin aut Comparison of the Effects of the Different Methods for Computing the Slope Length Factor at a Watershed Scale 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The slope length factor is one of the parameters of the Universal Soil Loss Equation (USLE) and the Revised Universal Soil Loss Equation (RUSLE) and is sometimes calculated based on a digital elevation model (DEM). The methods for calculating the slope length factor are important because the values obtained may depend on the methods used for calculation. The purpose of this study was to compare the difference in spatial distribution of the slope length factor between the different methods at a watershed scale. One method used the uniform slope length factor equation (USLFE) where the effects of slope irregularities (such as slope gradient, etc.) on soil erosion by water were not considered. The other method used segmented slope length factor equation(SSLFE) which considered the effects of slope irregularities on soil erosion by water. The Arc Macro Language (AML) Version 4 program for the revised universal soil loss equation(RUSLE).which uses the USLFE, was chosen to calculate the slope length factor. In a parallel analysis, the AML code of RUSLE Version 4 was modified according to the SSLFE to calculate the slope length factor. Two watersheds with different slope and gully densities were chosen. The results show that the slope length factor and soil loss using the USLFE method were lower than those using the SSLFE method, especially on downslopes watershed with more frequent steep slopes and higher gully densities. In addition, the slope length factor and soil loss calculated by the USLFE showed less spatial variation. Slope length Slope length factor Soil erosion USLE RUSLE Engineering (General). Civil engineering (General) Wu Zhiping verfasserin aut Liu Baoyuan verfasserin aut Cao Longxi verfasserin aut In International Soil and Water Conservation Research KeAi Communications Co., Ltd., 2016 1(2013), 2, Seite 64-71 (DE-627)DOAJ000037893 2589059X nnns volume:1 year:2013 number:2 pages:64-71 https://doi.org/10.1016/S2095-6339(15)30040-X kostenfrei https://doaj.org/article/1558f6e2a4124b2aaf9542a4e2e7af84 kostenfrei http://www.sciencedirect.com/science/article/pii/S209563391530040X kostenfrei https://doaj.org/toc/2095-6339 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 1 2013 2 64-71 |
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10.1016/S2095-6339(15)30040-X doi (DE-627)DOAJ054396824 (DE-599)DOAJ1558f6e2a4124b2aaf9542a4e2e7af84 DE-627 ger DE-627 rakwb eng TA1-2040 Fu Suhua verfasserin aut Comparison of the Effects of the Different Methods for Computing the Slope Length Factor at a Watershed Scale 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The slope length factor is one of the parameters of the Universal Soil Loss Equation (USLE) and the Revised Universal Soil Loss Equation (RUSLE) and is sometimes calculated based on a digital elevation model (DEM). The methods for calculating the slope length factor are important because the values obtained may depend on the methods used for calculation. The purpose of this study was to compare the difference in spatial distribution of the slope length factor between the different methods at a watershed scale. One method used the uniform slope length factor equation (USLFE) where the effects of slope irregularities (such as slope gradient, etc.) on soil erosion by water were not considered. The other method used segmented slope length factor equation(SSLFE) which considered the effects of slope irregularities on soil erosion by water. The Arc Macro Language (AML) Version 4 program for the revised universal soil loss equation(RUSLE).which uses the USLFE, was chosen to calculate the slope length factor. In a parallel analysis, the AML code of RUSLE Version 4 was modified according to the SSLFE to calculate the slope length factor. Two watersheds with different slope and gully densities were chosen. The results show that the slope length factor and soil loss using the USLFE method were lower than those using the SSLFE method, especially on downslopes watershed with more frequent steep slopes and higher gully densities. In addition, the slope length factor and soil loss calculated by the USLFE showed less spatial variation. Slope length Slope length factor Soil erosion USLE RUSLE Engineering (General). Civil engineering (General) Wu Zhiping verfasserin aut Liu Baoyuan verfasserin aut Cao Longxi verfasserin aut In International Soil and Water Conservation Research KeAi Communications Co., Ltd., 2016 1(2013), 2, Seite 64-71 (DE-627)DOAJ000037893 2589059X nnns volume:1 year:2013 number:2 pages:64-71 https://doi.org/10.1016/S2095-6339(15)30040-X kostenfrei https://doaj.org/article/1558f6e2a4124b2aaf9542a4e2e7af84 kostenfrei http://www.sciencedirect.com/science/article/pii/S209563391530040X kostenfrei https://doaj.org/toc/2095-6339 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 1 2013 2 64-71 |
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10.1016/S2095-6339(15)30040-X doi (DE-627)DOAJ054396824 (DE-599)DOAJ1558f6e2a4124b2aaf9542a4e2e7af84 DE-627 ger DE-627 rakwb eng TA1-2040 Fu Suhua verfasserin aut Comparison of the Effects of the Different Methods for Computing the Slope Length Factor at a Watershed Scale 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The slope length factor is one of the parameters of the Universal Soil Loss Equation (USLE) and the Revised Universal Soil Loss Equation (RUSLE) and is sometimes calculated based on a digital elevation model (DEM). The methods for calculating the slope length factor are important because the values obtained may depend on the methods used for calculation. The purpose of this study was to compare the difference in spatial distribution of the slope length factor between the different methods at a watershed scale. One method used the uniform slope length factor equation (USLFE) where the effects of slope irregularities (such as slope gradient, etc.) on soil erosion by water were not considered. The other method used segmented slope length factor equation(SSLFE) which considered the effects of slope irregularities on soil erosion by water. The Arc Macro Language (AML) Version 4 program for the revised universal soil loss equation(RUSLE).which uses the USLFE, was chosen to calculate the slope length factor. In a parallel analysis, the AML code of RUSLE Version 4 was modified according to the SSLFE to calculate the slope length factor. Two watersheds with different slope and gully densities were chosen. The results show that the slope length factor and soil loss using the USLFE method were lower than those using the SSLFE method, especially on downslopes watershed with more frequent steep slopes and higher gully densities. In addition, the slope length factor and soil loss calculated by the USLFE showed less spatial variation. Slope length Slope length factor Soil erosion USLE RUSLE Engineering (General). Civil engineering (General) Wu Zhiping verfasserin aut Liu Baoyuan verfasserin aut Cao Longxi verfasserin aut In International Soil and Water Conservation Research KeAi Communications Co., Ltd., 2016 1(2013), 2, Seite 64-71 (DE-627)DOAJ000037893 2589059X nnns volume:1 year:2013 number:2 pages:64-71 https://doi.org/10.1016/S2095-6339(15)30040-X kostenfrei https://doaj.org/article/1558f6e2a4124b2aaf9542a4e2e7af84 kostenfrei http://www.sciencedirect.com/science/article/pii/S209563391530040X kostenfrei https://doaj.org/toc/2095-6339 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 1 2013 2 64-71 |
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10.1016/S2095-6339(15)30040-X doi (DE-627)DOAJ054396824 (DE-599)DOAJ1558f6e2a4124b2aaf9542a4e2e7af84 DE-627 ger DE-627 rakwb eng TA1-2040 Fu Suhua verfasserin aut Comparison of the Effects of the Different Methods for Computing the Slope Length Factor at a Watershed Scale 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The slope length factor is one of the parameters of the Universal Soil Loss Equation (USLE) and the Revised Universal Soil Loss Equation (RUSLE) and is sometimes calculated based on a digital elevation model (DEM). The methods for calculating the slope length factor are important because the values obtained may depend on the methods used for calculation. The purpose of this study was to compare the difference in spatial distribution of the slope length factor between the different methods at a watershed scale. One method used the uniform slope length factor equation (USLFE) where the effects of slope irregularities (such as slope gradient, etc.) on soil erosion by water were not considered. The other method used segmented slope length factor equation(SSLFE) which considered the effects of slope irregularities on soil erosion by water. The Arc Macro Language (AML) Version 4 program for the revised universal soil loss equation(RUSLE).which uses the USLFE, was chosen to calculate the slope length factor. In a parallel analysis, the AML code of RUSLE Version 4 was modified according to the SSLFE to calculate the slope length factor. Two watersheds with different slope and gully densities were chosen. The results show that the slope length factor and soil loss using the USLFE method were lower than those using the SSLFE method, especially on downslopes watershed with more frequent steep slopes and higher gully densities. In addition, the slope length factor and soil loss calculated by the USLFE showed less spatial variation. Slope length Slope length factor Soil erosion USLE RUSLE Engineering (General). Civil engineering (General) Wu Zhiping verfasserin aut Liu Baoyuan verfasserin aut Cao Longxi verfasserin aut In International Soil and Water Conservation Research KeAi Communications Co., Ltd., 2016 1(2013), 2, Seite 64-71 (DE-627)DOAJ000037893 2589059X nnns volume:1 year:2013 number:2 pages:64-71 https://doi.org/10.1016/S2095-6339(15)30040-X kostenfrei https://doaj.org/article/1558f6e2a4124b2aaf9542a4e2e7af84 kostenfrei http://www.sciencedirect.com/science/article/pii/S209563391530040X kostenfrei https://doaj.org/toc/2095-6339 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 1 2013 2 64-71 |
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Comparison of the Effects of the Different Methods for Computing the Slope Length Factor at a Watershed Scale |
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Comparison of the Effects of the Different Methods for Computing the Slope Length Factor at a Watershed Scale |
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Fu Suhua |
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International Soil and Water Conservation Research |
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International Soil and Water Conservation Research |
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T |
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eng |
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Fu Suhua Wu Zhiping Liu Baoyuan Cao Longxi |
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TA1-2040 |
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Elektronische Aufsätze |
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Fu Suhua |
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10.1016/S2095-6339(15)30040-X |
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verfasserin |
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comparison of the effects of the different methods for computing the slope length factor at a watershed scale |
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TA1-2040 |
| title_auth |
Comparison of the Effects of the Different Methods for Computing the Slope Length Factor at a Watershed Scale |
| abstract |
The slope length factor is one of the parameters of the Universal Soil Loss Equation (USLE) and the Revised Universal Soil Loss Equation (RUSLE) and is sometimes calculated based on a digital elevation model (DEM). The methods for calculating the slope length factor are important because the values obtained may depend on the methods used for calculation. The purpose of this study was to compare the difference in spatial distribution of the slope length factor between the different methods at a watershed scale. One method used the uniform slope length factor equation (USLFE) where the effects of slope irregularities (such as slope gradient, etc.) on soil erosion by water were not considered. The other method used segmented slope length factor equation(SSLFE) which considered the effects of slope irregularities on soil erosion by water. The Arc Macro Language (AML) Version 4 program for the revised universal soil loss equation(RUSLE).which uses the USLFE, was chosen to calculate the slope length factor. In a parallel analysis, the AML code of RUSLE Version 4 was modified according to the SSLFE to calculate the slope length factor. Two watersheds with different slope and gully densities were chosen. The results show that the slope length factor and soil loss using the USLFE method were lower than those using the SSLFE method, especially on downslopes watershed with more frequent steep slopes and higher gully densities. In addition, the slope length factor and soil loss calculated by the USLFE showed less spatial variation. |
| abstractGer |
The slope length factor is one of the parameters of the Universal Soil Loss Equation (USLE) and the Revised Universal Soil Loss Equation (RUSLE) and is sometimes calculated based on a digital elevation model (DEM). The methods for calculating the slope length factor are important because the values obtained may depend on the methods used for calculation. The purpose of this study was to compare the difference in spatial distribution of the slope length factor between the different methods at a watershed scale. One method used the uniform slope length factor equation (USLFE) where the effects of slope irregularities (such as slope gradient, etc.) on soil erosion by water were not considered. The other method used segmented slope length factor equation(SSLFE) which considered the effects of slope irregularities on soil erosion by water. The Arc Macro Language (AML) Version 4 program for the revised universal soil loss equation(RUSLE).which uses the USLFE, was chosen to calculate the slope length factor. In a parallel analysis, the AML code of RUSLE Version 4 was modified according to the SSLFE to calculate the slope length factor. Two watersheds with different slope and gully densities were chosen. The results show that the slope length factor and soil loss using the USLFE method were lower than those using the SSLFE method, especially on downslopes watershed with more frequent steep slopes and higher gully densities. In addition, the slope length factor and soil loss calculated by the USLFE showed less spatial variation. |
| abstract_unstemmed |
The slope length factor is one of the parameters of the Universal Soil Loss Equation (USLE) and the Revised Universal Soil Loss Equation (RUSLE) and is sometimes calculated based on a digital elevation model (DEM). The methods for calculating the slope length factor are important because the values obtained may depend on the methods used for calculation. The purpose of this study was to compare the difference in spatial distribution of the slope length factor between the different methods at a watershed scale. One method used the uniform slope length factor equation (USLFE) where the effects of slope irregularities (such as slope gradient, etc.) on soil erosion by water were not considered. The other method used segmented slope length factor equation(SSLFE) which considered the effects of slope irregularities on soil erosion by water. The Arc Macro Language (AML) Version 4 program for the revised universal soil loss equation(RUSLE).which uses the USLFE, was chosen to calculate the slope length factor. In a parallel analysis, the AML code of RUSLE Version 4 was modified according to the SSLFE to calculate the slope length factor. Two watersheds with different slope and gully densities were chosen. The results show that the slope length factor and soil loss using the USLFE method were lower than those using the SSLFE method, especially on downslopes watershed with more frequent steep slopes and higher gully densities. In addition, the slope length factor and soil loss calculated by the USLFE showed less spatial variation. |
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Comparison of the Effects of the Different Methods for Computing the Slope Length Factor at a Watershed Scale |
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https://doi.org/10.1016/S2095-6339(15)30040-X https://doaj.org/article/1558f6e2a4124b2aaf9542a4e2e7af84 http://www.sciencedirect.com/science/article/pii/S209563391530040X https://doaj.org/toc/2095-6339 |
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Wu Zhiping Liu Baoyuan Cao Longxi |
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TA - General and Civil Engineering |
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2024-07-03T22:55:04.502Z |
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