干旱区生态环境知识资源中心(Arid): 祁连山区森林景观格局对水文生态效应的影响

Arid

	祁连山区森林景观格局对水文生态效应的影响
其他题名	Forest landscape pattern and its eco-hydrological effects of the Qilian Mountains in northwest China
	杨国靖; 肖笃宁; 周立华
来源期刊	水科学进展
ISSN	1001-6791
出版年	2004
卷号	15 期号:4 页码:489-494
中文摘要	在地理信息系统ArcGIS环境下,结合1987-2001年的水文资料,用Spatial Analyst、Hydrologic Modeling等扩展模块,对祁连山中段北坡大野口河流域和海潮坝河流域的景观格局与水文特征进行比较分析,结果表明:大野口河流域的景观组分以低海拔的草地和乔木林占优势,草地所占面积最大,整个景观较为破碎;海潮坝河流域的景观组分以高海拔的裸地和灌丛占优势,裸地所占面积最大,景观破碎化程度相对较低.大野口河流域的蒸散发占降水量的61%,流域径流系数为0.39;而海潮坝河流域的蒸散发占降水量的41%,流域径流系数为0.59.研究表明,导致两流域生态水文效应相差较大的主要原因是两流域不同的景观格局.
英文摘要	Using the model of Arc GIS program and the hydroloyical databases for 1981 to 2001, we analyze the landscape pattern and hydrological features of Dayekou river catchment (DYK) and Haichaoba river catchment (HCB) which are located at the Qilian mountains in northwest China. The results show that grassland and Picea crassifolia forest in DYK are the main landscape elements, and more important work in eco-hydrological process, while shrubs and bare land in HCB are the main landscape elements and of importance in eco-hydrological process. In DYK, the evapotranspiration is 61% of the rainfall, and the runoff coefficient is 0.39% whereas in HCB, the evapotranspiration is of the rainfall 41 % , and the runoff is 0.59% . The coefficient study indicates that different forest landscape pattern will bring on different eco-hydrological effects in the arid mountain areas.
中文关键词	祁连山区 ; 景观格局 ; 水文生态效应
英文关键词	Qilian Mountains landscape pattern eco-hydrological effects forest vegetation
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:1793495
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/2XILL650/205441
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	杨国靖,肖笃宁,周立华. 祁连山区森林景观格局对水文生态效应的影响[J]. 中国科学院西北生态环境资源研究院,2004,15(4):489-494.
APA	杨国靖,肖笃宁,&周立华.(2004).祁连山区森林景观格局对水文生态效应的影响.水科学进展,15(4),489-494.
MLA	杨国靖,et al."祁连山区森林景观格局对水文生态效应的影响".水科学进展 15.4(2004):489-494.