干旱区生态环境知识资源中心(Arid): 黑河流域下游水分驱动下的生态演化

Arid

	黑河流域下游水分驱动下的生态演化
其他题名	The ecological evolution driven by water in the lower reaches of Heihe Basin
	严登华 1; 王浩 1; 秦大庸 1; 王建华 1; 李云玲 2
来源期刊	中国环境科学
ISSN	1000-6923
出版年	2005
卷号	25 期号:1 页码:37-41
中文摘要	在GIS技术支持下,以地下水数值模拟模型为依托,分析了地下水埋深对植被群落(草地、有林地、疏林地和灌木林)盖度的影响,剖析了水源距离对景观变化的影响.结果表明,在一定的地下水埋深范围内,天然植被群落盖度与地下水埋深之间有着较显著的LOGSTIC关系("S"型曲线),且草地植被群落盖度对地下水埋深变化的响应程度最大.从水源距离对景观空间分异的影响来看,随着水源距离的增加,非荒漠景观的分布面积比例逐渐减小.水源距离对景观动态也有着显著的影响.
英文摘要	Based on the support of GIS techniques and numerical simulated model of groundwater, the inference of the groundwater depth on the cover degree of vegetation communities (grassland, forest, shrub and scarce woodland) was analyzed. Meanwhile, the effect of the distance from water sources on the landscape change was further analyzed. Definite range of the groundwater depth the natural vegetation communities cover degrees had rather distinctive Logistic relationship ("S" curve) with the groundwater depth; and the influence degree of the grassland communities cover degree on the variation of ground water depth was the strongest. With respect to the effect of the distances from water source, on the landscape space difference the distribution area ratio of un-deserted landscapes decreased gradually with the increase of the distance from the water source, at the same time, the effect of the distance from the water source on the landscape dynamics was also prominent.
中文关键词	黑河流域 ; 地下水 ; 群落盖度 ; 景观动态
英文关键词	GIS Heihe Basin groundwater cover degree of communities landscape dynamics GIS
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:1908998
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206921
作者单位	1.中国水利水电科学研究院水资源研究所, 北京 100044, 中国; 2.河海大学水资源环境学院, 南京, 江苏 210098, 中国
推荐引用方式 GB/T 7714	严登华,王浩,秦大庸,等. 黑河流域下游水分驱动下的生态演化[J],2005,25(1):37-41.
APA	严登华,王浩,秦大庸,王建华,&李云玲.(2005).黑河流域下游水分驱动下的生态演化.中国环境科学,25(1),37-41.
MLA	严登华,et al."黑河流域下游水分驱动下的生态演化".中国环境科学 25.1(2005):37-41.