干旱区生态环境知识资源中心(Arid): 额济纳生态环境退化及成因分析

Arid

	额济纳生态环境退化及成因分析
其他题名	The Degradation of Environment in Ejinaqi and Its Cause Analysis
	苏永红; 冯起; 吕世华; 张艳武; 司建华
来源期刊	高原气象
ISSN	1000-0534
出版年	2004
卷号	23 期号:2 页码:264-270
中文摘要	黑河下游的额济纳旗近20年来水文和生态环境严重退化，约有3／4的水井干涸，部分地区地下水位下降了2～3 m，水质恶化，生物多样性减少，有的物种已经灭绝。仅从1987年到1991年间，沙漠化面积(植被覆盖率<10％)就增加了约5．6％，年递增1．63*10~2km~2，绿洲严重退化，沙尘暴天气频繁。生态环境退化的原因是由于黑河水资源的不合理利用、人口的快速增长使土地超载及过度放牧。最后针对这些问题提出了一些相应的措施。
英文摘要	Ejinaqi lies in the lower reach of Heihe River basin. In the recent years, serious environment and hydrological degradation have been formed: About three fourths wells have dried and ground water has decreased 2~3 m according to observational data from a part of different ground water levels, wa ter quality has deteriorated, the diversity of biology has decreased, even some of them have been extinct. The situation of land has seriously desertified and oases have diminished. For example, between the years 1987 and 1991, the areas of Gobi and desertification land have increased by 5. 6%, and the annual rate reached to 1. 63*10~4km~2. The causes of ecological enviroment degradation is the unreasonable utilization of water resources of Heihe, population increasing in the region and excess grazing. Basing on these prob lems, some reasonable countermeasures are put forward.
中文关键词	额济纳旗
英文关键词	Ejinaqi
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:1618952
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/205170
作者单位	中国科学院寒区旱区环境与工程研究所, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	苏永红,冯起,吕世华,等. 额济纳生态环境退化及成因分析[J]. 中国科学院西北生态环境资源研究院,2004,23(2):264-270.
APA	苏永红,冯起,吕世华,张艳武,&司建华.(2004).额济纳生态环境退化及成因分析.高原气象,23(2),264-270.
MLA	苏永红,et al."额济纳生态环境退化及成因分析".高原气象 23.2(2004):264-270.