[1]HUANG Kaixuan,LIU Yang,DONG Xiaojian,et al.Variation of Soil Erosion in Hubei Section of Three Gorges Reservoir Area Based on Land Use Change[J].Research of Soil and Water Conservation,2020,27(01):1-6,20.
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Variation of Soil Erosion in Hubei Section of Three Gorges Reservoir Area Based on Land Use Change
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 01
Page number:
1-6,20
Column:
Public date:
2020-02-20
- Title:
- Variation of Soil Erosion in Hubei Section of Three Gorges Reservoir Area Based on Land Use Change
- Keywords:
- Hubei Section of the Gorges Reservoir Area; soil erosion; CSLE model; land use change; soil erosion intensity
- CLC:
- S157.1; TP79
- DOI:
- -
- Abstract:
- To explore the relationship between land use change and soil erosion before and after water storage in the Three Gorges Reservoir area, we calculated soil erosion in Hubei section of the Three Gorges Reservoir area through Chinese Soil Loss Equation(CSLE), RS and GIS spatial analysis technology. Soil erosion intensities of the three studied periods were classified according to the Classification and Classification Standard of Soil Erosion(SL 190—2007). Soil erosion and land use transfer matrices of 2005—2010 and 2010—2015 were generated through overlay analysis, and the land use changes with the soil erosion intensity change layers were overlapped. The results concluded that forest and farmland were the mainly land use patterns in the study area, in which the area of farmland and forest were decreasing, while the area of orchard land and construction land were increasing, and the urbanization rate was accelerating; micro-degree and mild erosion areas accounted for the largest proportion and increased year by year, while mild, moderate and strong erosion tended to migrate to lower intensity erosion. The impact of the conversion of grassland to farmland on enhancement of soil erosion modulus was the most obvious. The conversion of farmland to forestland, garden land and grassland and the conversion of garden land to forestland could weaken the intensity of soil erosion.
- References:
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Last Update:
2020-02-25