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[1]XIE Yingying,SHAO Zheng,LAN Xiaoji,et al.Relationship Between Land Use and Soil Erosion in Karst Area-A Case Study of Bijie Experimental Area[J].Research of Soil and Water Conservation,2017,24(06):1-5.

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Relationship Between Land Use and Soil Erosion in Karst Area-A Case Study of Bijie Experimental Area

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 24 Number of periods: 2017 06 Page number: 1-5 Column: Public date: 2017-11-24

Title:: Relationship Between Land Use and Soil Erosion in Karst Area-A Case Study of Bijie Experimental Area

Author(s):: XIE Yingying¹, SHAO Zheng², LAN Xiaoji¹, LI Fuwei², ZENG Fanhua²; 1. School of Architectural and Survey Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China;
2. Bijie Seismological Bureau, Bijie, Guizhou 551700, China

Keywords:: land use/cover change; soil erosion; overlay analysis; transfer matrix; Bijie experimental area

CLC:: S157;F301.24

DOI:: -

Abstract:: The process of land use/cover change and soil erosion change in Bijie experimental area from 1990 to 2010 was simulated by analyzing the data of land use type, gradient and vegetation index based on RS and GIS. Then, through overlay analysis and transfer matrix analysis, the response characteristic of soil erosion during changing process of land utilization was analyzed. The relationship between land use change and soil erosion change was revealed finally. The results showed that:(1) the areas of forestland, cultivated land and grassland in Bijie experimental area were the largest, the area of cultivated land was decreasing gradually, the areas of forestland and building land were increasing gradually; (2) the main types of soil erosion were mild and moderate erosion, the degree of soil erosion was controlled to a better level over the past twenty years, especially after the implementation of Grain for Green Project; (3) the land use change process was closely associated with soil erosion; cultivated land was main land type for the occurrence of soil erosion, the decreased area of cultivated land was positively associated with soil erosion area; the change in area of forestland was interrelated to the soil erosion, while at the beginning of the Grain for Green Project, the intensity of soil erosion slightly increased; the increased area of grassland was negatively correlated to the soil erosion area; increase in grassland area is favorable for strengthening anti-erosion ability of the soil. The results of this research are helpful for rational configuration of land resources and ecological protection in karst area and also provide the decision-making support for organization such as land use planning bureau or water resources bureau.

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