文献类型：期刊文献

中文题名：乌兰布和沙漠东北部天然植被动态及生态用水量研究

英文题名：Study on Natural Vegetation and Its Ecological Water Use in Northeastern Ulanbuh Desert

作者：李清河[1] 赵英铭[2] 江泽平[1] 王志刚[2]

第一作者：李清河

机构：[1]中国林业科学研究院林业研究所;[2]中国林业科学研究院沙漠林业实验中心

年份：2006

卷号：20

期号：5

起止页码：146-149

中文期刊名：水土保持学报

外文期刊名：Journal of Soil and Water Conservation

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金："十五"国家防沙治沙科技攻关课题(2005BA517A01;2002BA517A09-02-01)资助

语种：中文

中文关键词：乌兰布和沙漠;天然植被;生态用水量

外文关键词：Ulanbuh Desert; natural vegetation; ecological water use

分类号：X171.1

摘要：乌兰布和沙漠东北部的不同地类导致该地区天然植被生境差异,进而形成了有不同顶级植物组成的天然植物群落。本文在不同时期卫星影像解译的土地利用类型基础上,分析了乌兰布和沙漠东北部天然植被生境动态变化。结果表明,该地区固定半固定沙地面积均有所减少,流动沙地扩大,同时盐碱地大大萎缩。在此基础上,用间接推求方法估算了该地区天然植被的生态用水量,其中柠条群落的生态用水量占整个研究区域生态用水总量的50.01%,油蒿+白刺+沙冬青群落占41.03%,梭梭群落占7.38%,盐碱地柽柳群落占1.58%。
In the different land types, the different natural vegetation communities exist, which the dominant species are also different. Here on the basis of land use types from two phrases of TM satellite image, the dynamic changes of natural vegetation in the northeastern Ulanbuh Desert were analyzed. The main results are that the area for fixed sand land and semifixed sand land decrease, and the mobile sand land increase, and the salinate fields also shrunk. Subsequently, the ecological water uses for natural vegetation were calculated with indirect method. The following results are presented. The ecological water use for Caragana community is about 50.01 percent of the total water use, Artemisia ＋ Nitraria ＋ Ammopiptanthus community is 41.03 %, Haloxylon community 7.38%, and Tamarix community in salinate fields is about 1.58%.