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[1]PENG Yue,WANG Jian-li,WEI Hong.Research on the Soil Erosion Landscape Heterogeneity of Different Soil Types in Three Gorges Reservoir (Chongqing)[J].Research of Soil and Water Conservation,2009,16(05):7-12.

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Research on the Soil Erosion Landscape Heterogeneity of Different Soil Types in Three Gorges Reservoir (Chongqing)

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 16 Number of periods: 2009 05 Page number: 7-12 Column: Public date: 2009-10-20

Title:: Research on the Soil Erosion Landscape Heterogeneity of Different Soil Types in Three Gorges Reservoir (Chongqing)

Author(s):: PENG Yue^1,3, WANG Jian-li^1,3, WEI Hong^2,3; 1. School of Geography Science, Southwest China University, Chongqing 400715, China;
2. School of Life Science, Southwest China University, Chongqing 400715, China;
3. Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Chongqing 400715, China

Keywords:: Three Gorges Reservoir (Chongqing); soil erosion; landscape; heterogeneity; karst

CLC:: S157

DOI:: -

Abstract:: Based on the GIS technology and Landscape Ecology theory,we study the soil erosion landscape heterogeneity in different soil types of Three Gorges Reservoir (Chongqing).The results showed: (1) purple soils,yellow soil,paddy soil and limestone soil were the main types of study area,and clearly distributed in different space.The patch shape of brown soil,Yellow Soil and Yellow-brown Soil were more complex because of the natural geography conditions,but the purple soils was disturbed by human activity.(2) The landscape of tiny soil erosion,mid soil erosion and slight soil erosion were the dominant landscape in study area.The high soil erosion grade landscape had the severe fragmentation.The serious soil erosion in coarse soil had the most strong landscape fragmentation level,the same with the severe soil erosion in Yellow-Cinnamon Soils,in other soil types,the extreme soil erosion had the highest fragmentation level,it was the main drive force of the landscape fragmentation of study area.(3) From the landscape level,the soil erosion landscape in coarse soil and limestone soil had the higher landscape heterogeneity and the soil erosion landscape had the more strong stabilization,and the situation were reversed in brown soil and Yellow-Cinnamon Soils.

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