基于GIS技术的重庆市水土保持监测分区研究

Subdivisions of Soil and Water Conservation Monitoring of Chongqing City Based on GIS Technology

在传统水土流失分区研究基础上,探索应用GIS技术对现有地图和卫星影像解译分析,提取影响水土流失主要因子的基础信息,建立图形和空间属性数据库。利用1:5万GRID数据提取研究区的水土流失地学模型,利用ArcGIS强大的空间分析功能,对重庆市进行了水土保持监测区的划分。针对不同监测分区特点,提出了重庆市水土保持监测站点总体布局方案,为今后监测站网建设提供了理论依据。

Based on the traditional regional studies of soil erosion,the paper explored using GIS technology to analysis the existing maps and satellite imagery,to extracte the basic information of main factors affectting on soil erosion,and established a database of graphics and space property.The 1:5 000 GRID was used to extract data of soil erosion model and subdivide the monitoring area of soil and water conservation with the powerful ArcGIS spatial analysis function.The paper put forward the general layout scheme...