隆昌市土壤侵蚀敏感性定量分析研究

以降雨侵蚀力、地形起伏度、土壤质地、植被覆盖度等自然因素及土壤侵蚀敏感性综合指数作为评价指标,利用GIS与RS技术,对隆昌市土壤侵蚀敏感性进行定量分析,并研究其分布特征,为地区水土保持工作提供科学依据.研究表明:隆昌市土壤侵蚀敏感性整体以轻度敏感为主,降雨及土壤质地对土壤侵蚀影响较大,桂花井镇、金鹅镇、李市镇、圣灯镇、石燕桥镇、渔箭镇土壤侵蚀相对较为敏感,是今后水土保持的重点区域.

Quantitative Analysis of Soil Erosion Sensitivity in Longchang

The soil erosion sensitivity,terrain, soil texture, vegetation coverage and other natural factors and soil erosion sensitivity index are taken as the evaluation indexes.The sensitivity of soil erosion in Longchangwas quantitatively analyzed by using GIS and RS methods to study the distribution characteristics and to provide scientific basis for soil and water conservation work.Research shows that the sensitivity of soil erosion in Longchang was dominated by mild sensitivity.Rainfall and soil texture have a greater impact on soil erosion.Soil erosion is relatively sensitive in the town of Guihua, Jin`e, Lishi, Shengdeng, Shiyanqiao and Yujian.They are the focus of soil and water conservation in the future.