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塔里木河下游不同地下水埋深下的土壤种子库特征
Authors
叶茂
张青青
徐海量
李吉玫
Publication date
1 January 2008
Publisher
Abstract
本研究根据长期地下水位的监测资料和土壤种子库的萌发试验,分析了塔里木河下游不同地下水埋深下植物样地土壤种子库特征。结果显示,在干旱地区,地下水埋深的高低不仅影响地上植被群落的种类和组成,而且也对土壤种子库的密度和组成具有明显的影响。随着地下水埋深逐渐下降,种子库密度减少、物种多样性下降、生活型逐渐单一。同时地上植被群落与土壤种子库的相似性系数也逐渐降低。本研究不仅有助于丰富国内外关于干旱区土壤种子库的理论研究,而且有利于指导塔里木河下游正在开展的大规模生态恢复实践
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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