青海湖流域土壤侵蚀现状及防治对策研究

应用RS和GIS技术相结合进行青海湖流域土壤侵蚀遥感调查,通过对TM影像和1∶50000地形图的室内判读与野外调查相结合的方法,解译出青海湖流域的土地利用与植被覆盖现状图和数字高程模型图。在建立土地利用与植被覆盖的空间数据库和属性数据库的基础上,通过土壤侵蚀专家分类系统,获得了青海湖流域土壤侵蚀分类分级的侵蚀现状,为今后该流域的水土保持工作提供参考意见,并提出了相对可行的防治对策。

The Survey of the Soil Erosion Status in Qinghai Lake Catchment and its Countermeasures

We do a remote sensing investigation by the cobination of RS and GIS technologies. Through the indoor analysis of the TM images and 1:50,000 topographic map, as well as the field survey, the authors obtained the present landuse map, vegetation coverage map and slope map. Based on the established space/attribute database of landuse and vegetation coverage status, we also got the present soil erosion status of this area by means of specialized soil erosion classification system. We hope that this work will provide some reference materials and viable preventive measures for the local policy makers.