基于遥感和GIS的水蚀区土壤侵蚀动态监测方法

Dynamic Monitoring Method of Soil Erosion in Water Eroded Areas based on Remote Sensing and GIS

传统的水蚀区土壤侵蚀动态监测方法主要侧重于土壤侵蚀的定量监测,忽略了土壤侵蚀的空间分布特征,导致局部监测的失误和偏差。为了解决这一问题,文章设计了一种基于遥感和GIS技术的水蚀区土壤侵蚀动态监测方法。利用遥感与GIS技术提取水蚀区的关键土壤侵蚀因子值,包括降雨侵蚀力因子、土壤可蚀性因子以及坡长坡度因子等。通过对这些因子的提取和分析,定量评估水蚀区土壤侵蚀的强度。在此基础上,进一步结合水蚀区的土地利用类型、植被覆盖度以及地面坡度等因素,动态监测水蚀区土壤侵蚀强度等级的变化。通过实例分析,验证了文章提出的基于遥感和GIS的水蚀区土壤侵蚀动态监测方法在实际应用中监测效果较佳、适用性较强,能够为水蚀区土壤侵蚀的防治和治理提供有力的技术支持。

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 erosionarea.