南方农业学报2012，Vol.43Issue(9)：1339-1343,5.DOI:10.3969/j:issn.2095-1191.2012.09.1339
不同干扰因素下草甸草原自然保护区群落物种多样性研究
Species diversity of different communities in meadow steppe natural reserve under different disturbances
摘要
Abstract
[Objective]Species diversity of different plant communities in Hulunbuir Grassland Nature Reserve under different disturbances was investigated in order to provide references for the protection and rational utilization of ecological environment in nature preservation zones. [Method]Plant species composition and characteristic values were investigated in the four sample plots of Leymus chinensis mowing, Leymus chinensis grazing, Stipa baicalensis grazing, and Stipa baicalensis mowing, respectively. [Result]Important values of different plant species differed drastically; also, the number of species in different communities under grazing disturbances decreased dramatically. The α diversity index showed descending trend for all of the four disturbances. Important values of Leymus chinensis community under grazing disturbance were higher than that under mowing disturbance, and important values of Stipa baicalensis community under grazing disturbance were higher than that under mowing disturbance. [Conclusion]Under different disturbances, community composition altered significantly; similarly, species diversity of the communities in meadow steppe also changed.关键词
草甸草原/草甸群落/植物多样性/α多样性指数/呼伦贝尔Key words
Hulunbuir meadow steppe/ hygropium/ plant diversity/ α diversity index/ Hulunbuir分类
农业科技引用本文复制引用
桂花,乌仁其其格,袁伟..不同干扰因素下草甸草原自然保护区群落物种多样性研究[J].南方农业学报,2012,43(9):1339-1343,5.基金项目
内蒙古教育厅自然科学基金项目(NJ10251) （NJ10251）
