Dynamic Monitoring Method of Soil Erosion in Water Eroded Areas based on Remote Sensing and GIS
The traditional dynamic monitoring methods of soil erosion in water erosion areas mainly focus on the quantitative monitoring of soil erosion,ignoring the spatial distribution characteristics of soil erosion,resulting in local monitoring errors and deviations.In order to solve this problem,this paper designs a dynamic monitoring method of soil erosion in water erosion area based on remote sensing and GIS technology.Using remote sensing and GIS technology to extract the key soil erosion factors in the water erosion area,including Rainfall Erosivity Factor,soil erodibility factor,slope length and slope factor,etc.Through the extraction and analysis of these factors,the intensity of soil erosion in water erosion area is quantitatively evaluated.On this basis,the change of soil erosion intensity grade in the water erosion area is dynamically monitored in combination with the factors such as land use type,vegetation coverage and ground slope in the water erosion area.Through the case analysis,it is verified that the dynamic monitoring method of soil erosion in water erosion area based on remote sensing and GIS proposed in this paper has better monitoring effect and strong applicability in practical application,and can provide strong technical support for the prevention and control of soil erosion in water erosion area.
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