基于遥感和GIS的北京北部洪积区土地沙化现状研究

Research into the Status of Desertification in the Alluvial Fan to the North of Beijing,Based on RS and GIS

土地沙化不仅是一个重要的生态环境问题,也给社会经济也带来了很大的危害.而北京北部洪积区的沙化问题更是危害着首都的环境.因此研究北京市主要洪积区的沙化现状对促进地区环境改善,缓解经济和环境的矛盾,加快经济可持续发展有重要的意义.本文主要利用2007年北京市SPOT-5影像对北部主要洪积区的沙化的现状进行分析.结合GIS研究分析手段,可以看出在北京不同的土地类型和坡度上沙化的不同分布,针对其分布现状,提出相应的整改措施.

Desertification of land in China has become a serious environmental issue creating various Socio-economic problems. The desertification of the alluvial fan, in the north of Beijing, is adversely affecting the environment of the capital. It is very important to conduct research on the present state of desertification in Beijing as it can be used to improve the regional environment. The result could help us ease the tensions between the economy and the environment, accelerating sustainable economic development. This paper analyses the current state of desertification based on the data from Spot-5. The distribution of desertification in different types of land-use and the slope can are displayed using the tools of GIS. With the current state of descrtification distribution, there are some corresponding measures that can be implemented to improve the environment.