基于RS/GIS的天山北坡经济带生态环境质量综合评价研究

本文采用综合指数评价法，以RS／GIS技术解译的土地利用／土地覆盖数据为信息源，对天山北坡经济带生态环境质量进行评价、排序及分级。结果得出：乌鲁木齐市、乌苏市、呼图壁县生态环境质量良好，沙湾县、石河子市、奎屯市、玛纳斯县生态环境质量一般，米泉市、阜康市、克拉玛依市、昌吉市生态环境质量较差；良好、一般及差的县市区域面积分别占研究区面积的39．8％、27．89％和32．29％。这种生态环境质量分异特征主要是由自然环境条件、人类经济活动、土地利用方式决定的。

A Synthetical Evaluation of Ecological Environmental In Northern Slope Economic Zone of Tian Mountains Based On RS and GIS Techniques

Using the comprehensive evaluation index method,the paper makes an appraisal and ordination of eco-environmental quality for 11 conties in northern slope economic zone of Tian mountains.The result shows that the areas with the relatively good,moderate and relatively poor ecological environments occupy 39.82%,27.89%,and 32.29% of the total area of Xinjiang respectively.It also shows that the eco-environmental situations of Urumqi,Wusu and Hutubi are in relatively good states,the eco-environmental situations of Shawan,Shihezi,Kuitun and Manasi are in moderate states,the eco-environmental situations of Miquan,Fukang Kelamayi,and Changji are in relatively poor states.The difference of eco-environmental quality was mainly caused by natural environmental characteristics,human economic activities and the ways of land resources used.