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塔里木河中下游荒漠河岸林植被对地下水埋深变化的响应
Authors
朱成刚
李卫红
+3 more
赵锐锋
郝兴明
陈亚宁
Publication date
1 January 2008
Publisher
Abstract
结合塔里木河中下游74个植被样地和74眼地下水位监测井(2005-2007年)数据,将地下水位按不同埋深划分为0 ̄2m,2 ̄4m,4 ̄6m,6 ̄8m,8 ̄10m和>10m6个梯度,对不同地下水埋深下的群落盖度、物种多样性进行了分析,并探讨了主要植物种分布频率与地下水埋深的关系。结果表明:在地下水位2 ̄4m时,物种多样性最高,其次为4 ̄6m,再次为0 ̄2m;当地下水位在6m以下时,物种多样性锐减。塔里木河中下游主要植物最适宜水位在2 ̄4m之间;这些植物能够正常生长的地下水埋深区间为3 ̄6m。这表明,塔里木河下游植被恢复的地下水位应确保达到6m以上
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Institutional Repository of Xinjiang Institute of Ecology and Geography, CAS
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Last time updated on 29/11/2016