皇甫川流域不同植物群落主要物种生态位分析  

Analyses of realized niche of different types of plant communities in Huangfuchuan Watershed

作　　者：秦山[1] 潮洛濛[1,2] 

机构地区：[1]内蒙古大学生命科学学院,呼和浩特010021 [2]中美生态能源及可持续性科学内蒙古研究中心,呼和浩特010021

出　　处：《环境与发展》2013年第1期28-31,共4页Environment & Development

摘　　要：本文对皇甫川流域不同植物群落类型主要建群种的生态位宽度、生态位重叠及生态位动态特征进行分析。结果表明:在群落类型中优势种群的作用最大,其生态位宽度都较伴生种大;植物种群如具有较大的生态位宽度,则种间生态位重叠亦较高。生态位宽度和重叠反映了由本氏针茅群落到本氏针茅+百里香群落,再到百里香群落的演替系列。The paper analyzed the niche breadths, overlaps and the dynamics features of niche in dominate populations between difierent types of plant communities and populations in Huangfuchuan Watershed. The results showed that each community is dominated by one species with the greater niche breadth than their companion species in the community . The niche overlaps are higher between the species that have greater niche breadths than between those that have relatively narrower niche breadths. The changes of niche breadths and niche overlaps in the different type of community properly reflect the population dynamics that the order of 3 type of community is from Stipa bungeana community to Stipa bungeana ＋ Thymus serpyilum community, then to Thymus serpyllum community.

关 键 词：皇甫川流域 不同群落类型 生态位宽度 生态位重叠 

分 类 号：X26[环境科学与工程—环境科学]