植物研究2013，Vol.33Issue(2)：159-165,7.DOI:10.7525/j.issn.1673-5102.2013.02.007
放牧方式对中蒙典型草原植物功能群特征的影响
Effect of Grazing on Plant Functional Group Characteristics in stipa Steppe between China and Mongolia
摘要
Abstract
In our study,the plant functional characteristics in Chinese and Mongolian typical steppe under different grazing methods were investigated.The results showed that the proportion of perennial under settled grazing (SG) was significant lower than the others,the ratio is 57.576% ,while the proportion of xerophytes was significantly higher than the others,the ratio is 69.697%.The diversity of functional groups showed that Shannon-wiener and Simpson index at four season nomadic grazing (FSNG) were higher than the others,while Pielou was contrary to diversity index.Correlative analysis of functional groups diversity showed that there was a significantly positive correlation between Shannon-wiener and Simpson index,while negative correlation between Pielou and diversity index.Niche breaths between perennial and annual plants,xerophytes and intermediate xerads were higher,it affected niche overlap.It showed irrational grazing led to degradation of vegetation,which was clearly found to be of lesser economic and ecological value.关键词
典型草原/放牧方式/功能群多样性/功能群生态位Key words
typical grassland/grazing method/functional group diversity/functional group niche分类
农业科技引用本文复制引用
包秀霞,易津,廉勇,晓霞,包秀平..放牧方式对中蒙典型草原植物功能群特征的影响[J].植物研究,2013,33(2):159-165,7.基金项目
中蒙国际合作保护草原基金项目资助(CYNGO-07) （CYNGO-07）
