科尔沁沙地东南缘不同草地恢复方式下的物种多样性与生物量  

Species diversity and biomass of different grassland restoration approaches in southeastern Horqin Sandy Land

作　　者：袁吉有[1,2] 欧阳志云[1] 郑华[1] 徐卫华[1] 王芸[1,2] 

机构地区：[1]中国科学院生态环境研究中心城市与区域生态国家重点实验室,北京100085 [2]中国科学院研究生院,北京100049

出　　处：《干旱区资源与环境》2011年第10期175-178,共4页Journal of Arid Land Resources and Environment

基　　金：典型脆弱生态系统重建技术开发(2006BAC01)资助

摘　　要：对科尔沁沙地4种典型退化草地恢复方式下的生物多样性特征及其生物量进行了定量研究。结果表明:4种退化草地恢复方式下,物种多样性排序为防护林围纯草地>樟子松疏林草地>榆树疏林草地>撂荒草地;4种恢复方式下的群落总生物量与物种多样性的变化趋势一致;从物种多样性与生物量的综合分析表明,与未采取任何人为措施的撂荒草地相比,防护林,人工疏林与草地有机结合,均能不同程度地增加生态系统的物种多样性与生物量,表明各项措施是有效恢复沙地植被的方式。In this paper we systemactically studied the species diversity and biomass of four typical grassland restoration approaches in southeastern Horqin Sandy Land.The results showed： 1）The species diversity of four different grassland restoration approaches were as follow： grassland fenced by shelter forestelm scattered grasslandMongolian Pine scattered grasslandabandoned grassland;2） The biomass of four different grassland restoration approaches changed same species diversity;3）The total analysis of species diversity and biomass showed： grassland fenced by shelter forest、elm scattered grassland and Mongolian Pine scattered grassland had more higher the species diversity and biomass of ecosystem in comparsion with abandoned grassland.The results suggest that all measures is effective ecological vegetation restoration approach for disertified sandy grassland.

关 键 词：草地 恢复方式 物种多样性 生物量 

分 类 号：Q16[生物学—普通生物学]