长期水分胁迫对典型湿地植物群落多样性特征的影响

草业学报 ›› 2010, Vol. 19 ›› Issue (6): 9-17.

长期水分胁迫对典型湿地植物群落多样性特征的影响

杨涛^1,2,3,宫辉力^3*,胡金明⁴,王丽⁵

1.中国科学院东北地理与农业生态研究所,吉林长春 130012;
2.中国科学院研究生院,北京 100039;
3.三维信息获取与应用教育部重点实验室
首都师范大学,北京 100048;
4.云南大学亚洲国际河流中心,云南昆明 650091;
5.中国科学院地理科学与资源研究所,北京 100101

收稿日期:2010-03-29 出版日期:2010-06-25 发布日期:2010-12-20
作者简介:杨涛(1982-),男,湖北仙桃人,在读博士。E-mail:yt4226@neigae.ac.cn
基金资助:
国家自然科学基金(41001030)和国家高技术研究发展计划项目(2006AA12Z111;2009AA12Z14611)资助

Influences of longterm water stress on diversity characteristics of typical wetland plant communities

YANG Tao1,2,3, GONG Huili3, HU Jinming4, WANG Li5 

1.Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Science, Changchun 130012, China;
2.Graduate University of Chinese Academy of Sciences, Beijing 100039, China;
3.Key Lab of 3Dimensional Information Acquisition and Application of Ministry of Education Capital Normal University, Beijing 100048, China;
4.Asian International River Centre of Yunnan University, Kunming 650091, China;
5.Institute of Geographical Science and Nature Resources Research, CAS, Beijing 100101, China

Received:2010-03-29 Online:2010-06-25 Published:2010-12-20

摘要/Abstract

摘要： 不同水位梯度下的典型植被多样性特征研究,对湿地保护与恢复工作的开展具有重要借鉴意义。本研究基于为期3年的水分模拟试验,分析了不同水位梯度下,三江平原典型湿草甸、沼泽化草甸及沼泽群落多样性特征动态变化及响应差别。研究发现,沼泽化草甸群落与沼泽群落的3个多样性指数对不同水位梯度的响应较湿草甸群落明显;3个典型群落的Shannon-Wiener指数和物种丰富度总体均表现为随水位梯度的升高而下降的趋势,且每个群落均以物种丰富度的响应最为明显;而群落均匀度指数随水位梯度的升高以及淹水时间的延长,呈升高趋势;植物群落组成及格局在胁迫早期受水分条件影响最大,但最终格局是各环境及生物因子共同作用的结果。

Abstract: Studies on vegetation diversity under different water gradients were conducted for wetland conservation and restoration. Based on 2005-2007 year simulation test, diversity dynamics of typical wet meadow （Calamagrostis angustifolia community）, swamp meadow （C. angustifolia-Carex lasiocarpa community） and marsh communities (C. lasiocarpa community) under various water conditions were analyzed in the Sanjiang Plain. The Shannon-Wiener diversity index and species richness of the three communities generally decreased while the Pielou’s evenness increased with the increasing of water level, and the species richness was found to be the most sensitive index; diversity indexes of swamp meadow and marsh communities were more sensitive to water gradients than that of wet meadow community; the community composition and structure were mostly affected by water stress at the beginning, but they were ultimately determined by various environmental and biological factors together.

中图分类号:

杨涛,宫辉力,胡金明,王丽. 长期水分胁迫对典型湿地植物群落多样性特征的影响[J]. 草业学报, 2010, 19(6): 9-17.

YANG Tao1,2,3, GONG Huili3, HU Jinming4, WANG Li5 . Influences of longterm water stress on diversity characteristics of typical wetland plant communities[J]. Acta Prataculturae Sinica, 2010, 19(6): 9-17.

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