基于RS与GIS的景观格局演变对土壤侵蚀强度的影响分析

Effect of landscape pattern evolution on soil erosion intensity based on RS and GIS

以辽宁省喀左县为例,运用辽宁省喀左县遥感影像数据,使用ENVI、Arc GIS10和Fragstats3.3软件,解译研究区遥感影像数据,得到土地利用类型数据,再对DEM数据进行相关分析,最终获得土壤侵蚀强度专题图。根据栅格类型土地利用类型数据分析计算了斑块尺度和景观尺度上的景观格局指数,对这些指数进行分析计算,进而得到2003年和2012年景观格局指数动态变化量,在分析土壤侵蚀强度的基础上,进一步分析了景观结构动态变化对土壤侵蚀的影响。

In the county of Liaoning Province as an example application of Cameroon, Cameroon the county of Liaoning province using remote sensing data, ENVI, ArcGIS10 and Fragstats3.3 software, the solution of remote sensing image data translation study area, type of land use data obtained, and then the correlation analysis of DEM data, and finally obtained the soil erosion intensityof thematic map. According to the grid type of land use types data analysis oflandscape pattern indices of patch scale and landscape scale on thecalculation, the index analysis, and then get in 2003 2012 and the index oflandscape pattern dynamic change, on the basis of the analysis of soil erosion intensity, further analysis of the effects of dynamic changes of landscape structure on soil erosion.