干旱区生态环境知识资源中心(Arid): 中国西北地区额济纳绿洲植被盖度与黑河流量的滞后效应研究

Arid

	中国西北地区额济纳绿洲植被盖度与黑河流量的滞后效应研究
其他题名	Hysteresis effect of runoff of the Heihe river on vegetation cover in the Ejina oasis in northwcstern China.
	金晓媚; 胡光成; 李文梅
来源期刊	地学前缘
ISSN	1005-2321
出版年	2008
卷号	15 期号:4 页码:198-203
中文摘要	干旱区植被生长与地下水的关系是生态水文地质学研究的热点之一。西北干旱地区，由于降水稀少，绿洲是当地人类生存和发展的主要依托。近年来，随着黑河流域中游地区用水量的逐年加大，下游来水量减少，使得下游额济纳绿洲的面积不断减小，湖泊干涸，沙漠化严重，生态环境恶化。由于绿洲植被的生长与水有极为密切的关系，因此，研究河流流量与绿洲植被生长之间的定量关系，对改善黑河流域生态环境、协调用水矛盾和合理配置水资源具有重要意义。将遥感数据与黑河径流量数据相结合，在区域尺度上定量研究额济纳绿洲植被生长与河流径流量的关系。结果表明，绿洲植被对黑河径流以及地下水有很强的依赖关系，而且黑河径流对额济纳绿洲的影响存在一年的滞后期，而地下水则通过这种滞后作用将两者联系起来。
英文摘要	The relationship between vegetation growth and groundwater in arid areas is one of the most actively researched topics in ecohydrology. On account of little precipitation, the oasis is the only form of sustenance for living and economic development, for the local people in the arid areas of northwest China. During recent years, with the increase of water consumption in the middle stream area of the Heihe river basin, the !ncoming water has decreased gradually and the area of the Ejina oasis in the downstream area has decreased continuously. It has caused lake drying, land desertification, and ecoenvironmental degradation. The vegetation growth of the oasis has a close relationship with the water resources. Therefore, research on the quantitative relationship between the runoff and the vegetation growth has significance in improving the ecoenvironment, and balancing the contradiction of water consumption and reasonable allocation of the water resources in the Heihe river ba- sin. Combined with remote sensing data and runoff of the Heihe river, the quantitative relationship between the vegetation growth of the Ejina oasis and the runoff of the Heihe river has been established from the regional scale in this study. The result indicates that the growth of oasis vegetation depends on the runoff of the Heihe river and the groundwater. The time lag of the impact of the runoff of the river on the vegetation cover of the Ejina oasis is one year, and the groundwater links the vegetation cover and the runoff by this Hysteresis effect.
中文关键词	径流量 ; 额济纳绿洲
英文关键词	GIMMS-NDVI MODIS-NDVI GIMMS-NDVI MODIS-NDVI runoff Ejina oasis
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Mineralogy
WOS研究方向	Mineralogy
CSCD记录号	CSCD:3352644
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222161
作者单位	金晓媚, (北京)中国地质大学水资源与环境学院, 北京 100083, 中国.; 胡光成, (北京)中国地质大学水资源与环境学院, 北京 100083, 中国.; 李文梅, 内蒙古第一水文地质工程地质勘查院, 呼和浩特, 内蒙古 010050, 中国.
推荐引用方式 GB/T 7714	金晓媚,胡光成,李文梅. 中国西北地区额济纳绿洲植被盖度与黑河流量的滞后效应研究[J],2008,15(4):198-203.
APA	金晓媚,胡光成,&李文梅.(2008).中国西北地区额济纳绿洲植被盖度与黑河流量的滞后效应研究.地学前缘,15(4),198-203.
MLA	金晓媚,et al."中国西北地区额济纳绿洲植被盖度与黑河流量的滞后效应研究".地学前缘 15.4(2008):198-203.