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中文摘要：
目的查明黄河中上游地区生态环境质量的空间分布规律。方法以遥感数据结合其他信息源,利用Erdas,ArcInfo,ArcView等GIS软件,建立黄河中上游地区环境信息系统数据库;结合层次分析法及环境质量综合法,对黄河中上游典型区域的生态环境质量进行综合评价。结果黄河中上游地区生态环境质量状况较好的区域面积有306 902.9 km^2,占总面积的42.47.0%,而生态环境较差的区域面积达413 942.6 km^2,占总面积的57.3%。结论通过综合评价,黄河中上游地区生态环境整体较差,其中黄土高原所占面积最大,其次是河源地区,最后是河套平原灌溉区。
英文摘要：
Aim To study the spatial character of environmental quality in Middle-up stream of YELLOW RIVER Drainage Basin（MUAYRR）.Methods Based on remote sensing datum and research datum using GIS technology like ArcInfo and ArcView.Results The quality over the good level area is 306 902.9 km2,in the proportion of 42.47%,and the regions with the lowest ecological environment quality occupy 57.3% of MUAYRR.Conclusion The ecological environment quality in MUAYRR is rather low.The Loess plateau has the lowest quality;the source of the Yellow River is better;but the Erdos altiplano-Hetao plain has the best quality.
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