黑河下游干旱地区环境变化研究  

A STUDY OF ENVIRONMENT CHANGE IN AREA OF HEIHE RIVER

作　　者：孙文新[1] 曾群柱[1] 

机构地区：[1]中国科学院兰州冰川冻土研究所

出　　处：《中国沙漠》1997年第2期149-153,共5页Journal of Desert Research

摘　　要：额济纳旗绿洲是典型的干旱荒漠天然绿洲，是河西走廊及内陆地区的一道绿色屏障。通过对额济纳旗绿洲土地利用情况的遥感调查，证实了额济纳旗绿洲生态环境恶化的严重性。对处于干旱区的额济纳旗绿洲环境变化的研究，分析了干旱地区环境变化的因素，表明干旱区生态环境保护的必要性和迫切性。Ejin Banner, a typical natural oasis in the desert area, provide a natural green defence for Hexi Corridor. Investigating into the land use by remote sensing proved that the ecological environment of this area has been degraded seriously. The reasons of environmental change of arid area has been analysed in the studing of Ejin Banner which situated in arid area. The studing results suggested the necessity and urgency of ecological environmental protection.

关 键 词：干旱地区 环境变化 变化因子 黑河 生态环境 

分 类 号：X87[环境科学与工程—环境工程] X17