中国地理科学(英文版) ›› 2010, Vol. 20 ›› Issue (1): 37-42.doi: 10.1007/s11769-010-0037-9

• 论文 • 上一篇    下一篇

Response of Regeneration Diversity of Carex Lasiocarpa Community to Different Water Levels in Sanjiang Plain, China

WANG Li1,2, SONG Changchun1, HU Jinming3, YANG Tao1,2   

  1. 1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Asian International Rivers Center, Yunnan University, Kunming 650091, China
  • 收稿日期:2009-01-07 修回日期:2009-08-04 出版日期:2009-12-01 发布日期:2010-04-23
  • 通讯作者: SONG Changchun.E-mail:erc2009@126.com E-mail:erc2009@126.com
  • 基金资助:

    Under the auspices of the National Basic Research Program of China (No.2009CB421103);Northeast Revitalization Program,Chinese Academy of Sciences (No.DBZX-2-024)

Response of Regeneration Diversity of Carex Lasiocarpa Community to Different Water Levels in Sanjiang Plain, China

WANG Li1,2, SONG Changchun1, HU Jinming3, YANG Tao1,2   

  1. 1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Asian International Rivers Center, Yunnan University, Kunming 650091, China
  • Received:2009-01-07 Revised:2009-08-04 Online:2009-12-01 Published:2010-04-23
  • Supported by:

    Under the auspices of the National Basic Research Program of China (No.2009CB421103);Northeast Revitalization Program,Chinese Academy of Sciences (No.DBZX-2-024)

摘要:

The species diversity at the regeneration stage, inflenced by different water levels, is important for community composition in the later growing season.Regeneration diversity of Carex lasiocarpa community under different water levels was studied at two stages, recruitment and adult, in the Sanjiang Plain, Heilongjiang Province, China.The results showed that, at the two growing stages, important value of C.lasiocarpa population and species richness of the community decreased with the increasing water level, while the Simpson and Shannon-Wiener diversity indexes and Pielou evenness index increased.Under different water levels, community diversities were higher at the recruitment stage, while population important values of C.lasiocarpa were higher at the adult stage.Indexes in vegetation evaluation must be chosen prudentially for successful restoration and effective management of wetlands, and especially for wetland restoration, the optimal time should be selected according to the restoration objectives and costs.

关键词: water level, population dominance, species diversity, marsh wetland, Sanjiang Plain

Abstract:

The species diversity at the regeneration stage, inflenced by different water levels, is important for community composition in the later growing season.Regeneration diversity of Carex lasiocarpa community under different water levels was studied at two stages, recruitment and adult, in the Sanjiang Plain, Heilongjiang Province, China.The results showed that, at the two growing stages, important value of C.lasiocarpa population and species richness of the community decreased with the increasing water level, while the Simpson and Shannon-Wiener diversity indexes and Pielou evenness index increased.Under different water levels, community diversities were higher at the recruitment stage, while population important values of C.lasiocarpa were higher at the adult stage.Indexes in vegetation evaluation must be chosen prudentially for successful restoration and effective management of wetlands, and especially for wetland restoration, the optimal time should be selected according to the restoration objectives and costs.

Key words: water level, population dominance, species diversity, marsh wetland, Sanjiang Plain