塔里木河下游自然景观生态系统敏感性区划

研究以1959、1973、1989、2000和2008年航空和卫星遥感影像为数据源,结合地面调查,运用GIS技术、景观生态学原理对塔里木河下游进行景观分类并生成景观分类图。最后使5期景观分类图转换成灰阶图像进行叠加分析,在此基础上,辨识出了景观生态敏感区域。结果表明：极度敏感区占研究区10.18%;敏感区占研究区17.95%。塔里木河下游自然景观生态系统在抗风沙、盐碱和干旱能力方面优于人为景观生态系统,研究区划自然景观生态系统敏感性地带,不仅为制定预防和治理生态环境问题的区域政策提供科学根据,而且将有利于人们确定不同区域的生态环境问题的治理重点,提出区域生态环境整治对策。

Division sensitivity area of natural landscape ecosystem in lower reaches of Tarim river

In this paper by choosing aerial and satellite remote sensing data of the year 1959,1973,1989,2000 and 2008 for data source,become ground observation with the masses,using GIS technology,principles of landscape ecology make a landscape classification treat lower reaches of Tarim river and create landscape map.Finally five times the landscape classification map conversion to become the gray scale map and make a superposition analysis,On this foundation,recognize view ecosystem sensitive district.The results show that∶The extreme sensitive area has to study area 10.18%;The sensitive area has to study area 17.95%.Lower reaches of Tarim river natural landscape ecosystem at anti-sandstorm,the salt alkali and the dry ability aspect excellent compare with artificial landscape ecosystem,Division sensitivity area of natural landscape ecosystem in Study the area,Not only manage the point for the ecosystem environment problem that draws up the different from manage the policy of the district of the ecosystem environment problem to provide science basis,but also will be advantageous to the people assurance district of prevention,put forward the ecosystem environment of the district whole cure the counter plan.