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三峡水库澎溪河消落带植物群落物种丰富度格局

孙 荣 袁兴中 陈忠礼 张跃伟 刘 红

孙 荣, 袁兴中, 陈忠礼, 张跃伟, 刘 红. 三峡水库澎溪河消落带植物群落物种丰富度格局[J]. 环境科学研究, 2010, 23(11): 1382-1389.
引用本文: 孙 荣, 袁兴中, 陈忠礼, 张跃伟, 刘 红. 三峡水库澎溪河消落带植物群落物种丰富度格局[J]. 环境科学研究, 2010, 23(11): 1382-1389.
SUN Rong, YUAN Xing-zhong, CHEN Zhong-li, ZHANG Yue-wei, LIU Hong. Patterns of Plant Community Species Richness in the Fluctuating Water Level Zone along the Pengxihe River of the Three Gorges Reservoir[J]. Research of Environmental Sciences, 2010, 23(11): 1382-1389.
Citation: SUN Rong, YUAN Xing-zhong, CHEN Zhong-li, ZHANG Yue-wei, LIU Hong. Patterns of Plant Community Species Richness in the Fluctuating Water Level Zone along the Pengxihe River of the Three Gorges Reservoir[J]. Research of Environmental Sciences, 2010, 23(11): 1382-1389.

三峡水库澎溪河消落带植物群落物种丰富度格局

基金项目: 国家自然科学基金项目(50749045);国家科技支撑计划项目(2006BAJ08B01);重庆市科委科技攻关项目(CSTC,2009AB1079)

Patterns of Plant Community Species Richness in the Fluctuating Water Level Zone along the Pengxihe River of the Three Gorges Reservoir

  • 摘要: 通过样地调查和Spearman相关分析,研究了澎溪河消落带植物群落物种丰富度格局. 结果表明:沿河流纵向梯度,总物种丰富度、灌木层和草本层物种丰富度均表现出抛物线型,乔木层物种丰富度表现出直线型;沿河流侧向梯度,总物种丰富度和草本层物种丰富度随高程的增加先升高后降低;乔木层和灌木层物种丰富度随高程的升高而增加. 在纵向梯度上,底质类型与物种丰富度显著相关,距河口的空间距离对物种丰富度有重要的控制作用;在侧向梯度上,淹水时间、土壤含水量、底质异质性对群落空间格局有重要影响. 总体来说,消落带植物物种丰富度格局仍受原河流地貌及洪水格局的影响,但由于水位季节性变动,已形成与水位变动相适应的分布格局.

     

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出版历程
  • 收稿日期:  2010-03-11
  • 修回日期:  2010-08-16
  • 刊出日期:  2010-11-25

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