基于RS与GIS技术的若尔盖地区沼泽动态变化研究

 采用RS和GIS技术相结合的调查分析方法，引入沼泽动态度等表征参量，探讨了若尔盖地区沼泽的动态变化特征。结果表明： 近30 a来，该区沼泽面积呈现明显的下降趋势，虽然近些年沼泽退化速度有所减缓，但状况仍不容乐观； 沼泽景观破碎化明显，沼泽退化存在着一定的时空变化规律。

DYNAMIC CHANGE OF SWAMPS IN ZIOGEPLATEAU BASED ON RS AND GIS TECHNOLOGY

In order to study dynamic change characteristics of swamps in Zioge plateau area composed of Zioge County, Maqu County and Hongyuan County, Information System technology and introduced the authors made use of the remote sensing data and the Geographical four characteristic parameters such as the degree of dynamic change to get the numerical values of these characteristics. The results show that there has been a trend of swamp area in the past 30 years, though the decreasing speed has somewhat slowed and that the fragmentation of swamp landscape has been evident in this area. Furthermore, spatial pattern in the swamp degradation of this area. remarkably decreasing down in recent years, there exists a temporal