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Quantitative Study of Soil Erosion in Henan Province Based on GIS

机译：基于GIS的河南省土壤侵蚀定量研究。

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Based on a large number of researches, in according with the actual situation in geography and geology environment in Henan Province, this paper summed up the evaluation methods of soil erosion for Henan. Based on RUSLE mode, first of all, soil erosion model needed to get rainfall erosivity factor, soil erodibility factor, terrain factor, vegetation cover and soil and water conservation measures factor. Henan soil erosion intensity distribution was obtained according to soil erosion prediction formula In the Raster Calculator module of ARCGIS. Then to be Henan soil erosion strength grade distribution according to si 190-96 classification standard. Results show that low-level is the main soil erosion level. High-level, ultra-high-level and acute also happen, but their percentages are relative low. The high-level, ultra-high-level and acute soil erosion distribute mainly in southland region. The soil erosion situation would become clear, and provide a scientific reference for the government decision-making and provides a theoretical basis for future research.
机译：在大量研究的基础上，结合河南省地理和地质环境的实际情况，总结了河南省水土流失评价方法。首先，在RUSLE模式的基础上，需要建立土壤侵蚀模型，以得到降雨侵蚀力因子，土壤易蚀性因子，地形因子，植被覆盖率和水土保持措施因子。根据ARCGIS栅格计算器模块中的水土流失预测公式，得出河南水土流失强度分布。然后根据si 190-96分类标准进行河南水土流失强度等级分布。结果表明，低水平是主要的土壤侵蚀水平。高水平，超高水平和急性也有发生，但它们的百分比相对较低。高，超高，严重水土流失主要分布在南部地区。水土流失情况将更加清晰，为政府决策提供科学依据，并为今后的研究提供理论依据。

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