唐古拉山镇天然草地经济类群产量的主成分分析  

Principal Component Analysis of Natural Grassland Economic Group Yield in Tanggula Town

作　　者：秦海蓉[1] Qin Hairong(The Grassland Station of Qinghai Province,Xining 810008,China)

机构地区：[1]青海省草原总站,青海西宁810008

出　　处：《安徽农学通报》2018年第6期115-116,共2页Anhui Agricultural Science Bulletin

摘　　要：为了研究唐古拉山镇天然草地经济类群产量的特征,该文运用主成分分析法评价了唐古拉山镇高寒草原类紫花针茅、杂类草草地型经济类群产量,结果表明,1号样方(2015年)综合得分最高,5号样方(2016年)综合得分次之,说明1号和5号样方产量较高,并比其他样方设置合理,最能够代表样地基本特征。In order to study the characteristics of natural grassland economic groups in Tanggulashan Town,principal component analysis method was used to evaluate the yield of Stipa purpurea and miscellaneous grassland-type economic groups in the high-cold grassland of Tanggulashan Town.The results showed that the comprehensive score of No.1 sample plot(2015)is the highest,and the comprehensive score of Sample No.5(2016)is the second highest,indicating that the yields of No.1 and No.5 plots are relatively high,and they are more reasonable than those of other plots,and can best represent the basic characteristics of plots.

关 键 词：唐古拉山镇 天然草地 产量 主成分 

分 类 号：S812[农业科学—草业科学]