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当前位置: 首页 > 文章 > 短花针茅荒漠草原植物种群生态位对放牧的响应 中国草地学报 2015,37 (5) 24-32
Position: Home > Articles > Study on Response of Niche of Stipa breviflora Desert Steppe Plant Populations to Grazing Chinese Journal of Grassland 2015,37 (5) 24-32

短花针茅荒漠草原植物种群生态位对放牧的响应

作  者：
卫智军;牛富宝;刘红梅;吕世杰;刘文亭
单  位：
内蒙古农业大学生态环境学院;内蒙古苏尼特右旗科学技术局
关键词：
短花针茅;荒漠草原;生态位;生态属性;生态响应
摘  要：
以短花针茅荒漠草原植物种群为对象,对比分析自由放牧与禁牧(对照)区植物种群生态位宽度、生态位重叠、物种相对生态属性和物种生态响应。结果表明:与禁牧相比,自由放牧使建群种短花针茅和优势种无芒隐子草生态位变宽,而优势种碱韭生态位变窄。短花针茅、碱韭和无芒隐子草3个主要植物种群按相对衰退性排序与对照相反,且3个主要植物种群的生态属性均为衰退性植物种群。自由放牧对种群衰退性或发展性的相对排序及生态响应速率产生影响,致使种群生态位宽窄、生态位重叠程度发生变化。
译  名：
Study on Response of Niche of Stipa breviflora Desert Steppe Plant Populations to Grazing
作  者：
WEI Zhi-jun;NIU Fu-bao;LIU Hong-mei;LV Shi-jie;LIU Wen-ting;College of Ecology and Environmental Science,Inner Mongolia Agriculture University;Right Sunit County Bureau of Science and Technology;The Inner Mongolia Autonomous Region Academy of Forestry Science;
关键词：
Stipa breviflora;;Desert steppe;;Niche;;Ecology properties;;Ecological response
摘  要：
Taking Stipa breviflora desert steppe plant populations as the research object.A comparative study of the niche breadths,niche overlaps,species relative ecology properties and species ecological response of plant populations in the area of continuous grazing and banning grazing was performed.The results showed that:Compared with the banning grazing,continuous grazing broaden the niche of Stipa breviflora being constructive species and Cleistogenes songorica being dominant species and narrowed the niche of Allium polyrhizum being dominant species.The order of three main plant populations Stipa breviflora,Allium polyrhizum and Cleistogenes songorica was contrast to CK according to relative decline.The ecology property of three main plant populations was declining plant populations.Influence of continuous grazing on relative order of populations declining and developing leads to changes in niche width and degree of niche overlap.

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