黄土丘陵沟壑区土壤侵蚀预测模型建立方法的研究

Research on Establishment of the Model for Predicting Soil Erosion on Loess Hilly and Gully Areas

文章对黄土丘陵沟壑区,土壤侵蚀预测模型的建立方法与原理进行了简述。应用遥感技术和地理信息系统技术提取研究区内土壤侵蚀预测模型所需的各种因子,同时用灰色控制系统的理论与方法确定了预测模型的参数。用该模型对山西省离石县王家沟流域羊道沟的土壤侵蚀进行了试验研究,并对结果进行了精度分析。

This paper briefly discusses method and principle to build up a model for predicting soil erosion on Loess hilly and gully regions. Using remote sensing technology and geographic information system, the author obtains all the factors for building up model for predicting soil erosion in the research field, and determines the parameters of predicting model with method and theory of grey controlling system. This model is used for predicting soil erosion in Yangdaogou, Wangjiagou watershed, Lishi County, Shaanxi Province, and the precision of experimental results is analysed.