安徽农业科学2013，Vol.41Issue(10)：4242-4245,4.
那拉提两种利用方式草地植物群落种-面积曲线拟合及最小面积确定的研究
Fitting of Species-area Relationship and Determination of Minimum Sampling Area for TwoUtilization Ways of Plant Communities in Nalati Pasture
摘要
Abstract
Adopting 12 equations to fit community species-area relationships,the minimum sampling areas (MSA) of natural grasslands under enclosure condition (plot 1) and grazing condition (plot 2) in Nalati pasture was studied.According to the multiple correlation coefficient (R2) and the biological significance of model,the cumulative Weibull distribution model was regarded as the optimal fitting model for Nalati pasture.Through comparing the community species proportion method and the second derivative method,it was found that the latter method is more accurate and the minimum sample areas got by the former method is lower than reality.Finally,the MSA of plot 1 and plot 2 are 3.4 m2,5.6 m2.关键词
草地/植物群落/种-面积曲线/拟合/最小面积Key words
Grassland/ Plant community/ Species-area curve/ Fitting/ minimum sampling areas分类
农业科技引用本文复制引用
卓茜,李熙萌,杨骁,冯金朝..那拉提两种利用方式草地植物群落种-面积曲线拟合及最小面积确定的研究[J].安徽农业科学,2013,41(10):4242-4245,4.基金项目
中央民族大学"985工程"项目(课题编号:MUC985-9)与"111计划"项目(课题编号:2008-B08044)阶段性成果. （课题编号:MUC985-9）
