天山南坡高寒草地物种多样性及地上生物量研究  

Species Diversity and Above-Ground Biomass of Alpine Grassland on the Southern Slope of Tianshan Mountain

作　　者：李凯辉[1] 胡玉昆[1] 阿德力.麦地[1] 于建梅[1] 高国刚[1] 

机构地区：[1]中国科学院新疆生态与地理研究所

出　　处：《干旱区资源与环境》2007年第1期155-159,共5页Journal of Arid Land Resources and Environment

基　　金：中国科学院新疆生态与地理研究所前沿领域项目(20049016)资助

摘　　要：在新疆天山巴音布鲁克草原对高寒草甸、高寒草原和高寒草甸化草原的物种多样性进行了研究,结果表明:盖度+高度指标测度群落物种多样性指数要优于盖度和株数指标,更适于测度高寒草地的物种多样性指数。丰富度指数、Margalef指数与Shannon-wiener指数相关性显著,在小的空间研究尺度内,草地植物群落物种多样性指数受丰富度指数的影响较大。地上生物量与丰富度指数、Margalef指数和Shannon-wiener指数呈负相关关系。Species diversities of alpine meadow, alpine grassland and meadow grassland in Bayanbulak on the southern slope of Mt. Tianshan, XinJiang were studied. The results showed： coverage ＋ height were more favorable to measure community diversity than coverage ＋ individuals. There was a distinct positive relationship among Richness index, Margalef index and Shannon -wiener index. Richness index was a key diversity index to measure community diversty in a small spatial scale. There was distinct a negative relationship between above - ground biomass and diversity indices （richness index, margalef index and Shannon- wiener index）.

关 键 词：草原 地上生物量 Shannon—wiener指数 丰富度指数 

分 类 号：Q16[生物学—普通生物学]