GIS-based modeling of Soil and Water Loss Process at regional scale
Studying the dynamic process of soil and water loss at regional scale was of great importance to understanding the effects of soil erosion on environmental factors and the relationship between global change and regional soil erosion. In this study, a set of algorithms for cell models were designed, with which the related process of runoff, erosion and sediment yield were calculated.The result was applied in Yanhe River basin and regional soil and water loess process was modeled. The results showed that all of the modules designed can function well. The output maps could characterize the soil erosion in Yanhe River properly; the spatial pattern and structure depicted by the map were accordant with the practical situation. The soil erosion in Yanhe River was mainly influenced by land using and climatic factors at macro scale, and by terrain microrelief at micro scale. The simulation results were comparatively accordant with the practical situation.
regional soil and water loss runoff erosion and sediment yield algorithms GIS
ZHIHONG YAO QINGKE YANG RUI LI
College of Resources and Environment, North China University of water Resources and Electric Power, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resource Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resource
国际会议
西安
英文
988-992
2010-10-11（万方平台首次上网日期，不代表论文的发表时间）