基于“3S”技术的艾比湖地区荒漠化现状分析

Analysis on Desertification Status in Region of Ebinur Lake Based on Remote Sensing and GIS and GPS

选取荒漠化问题突出的艾比湖地区作为研究区,采用2004年遥感TM影像,通过ERDAS软件处理,再运用GIS分析手段,综合土地利用图、地形图和其他资料形成艾比湖地区的荒漠化现状图。结果显示,艾比湖地区荒漠化土地类型的比例为未荒漠化占12.39%,微度荒漠化占12.56%,轻度荒漠化占24.87%,中度荒漠化占27.95%,重度荒漠化占22.23%。由于治理有方及降水有所增加,最近荒漠化速度有所放缓,但任务还很繁重。总之,荒漠化发展的原因是自然因素与人为因素共同作用的结果。

We analysed desertification in the region Ebinur lake of Xinjiang because it is notable.Based on TM image in 2004, and land use map,relief map and other information of Ebinur lake area, I made desertification Status in Region of Ebinur Lake through the ERDAS software and the GIS software, ARC/INFO. Undesertification, micro-degree desertification, mild desertification,modemte desertification and the serious desertification account for respectively 12.39%, 12.56% ,24.87% ,27. 95% ,Z2.23% .We must take some active raeasures if the desertification area is decreasing.