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甘南玛曲植物群落的多元分析与环境解释
引用本文:王孝安.甘南玛曲植物群落的多元分析与环境解释[J].生态学报,1997,17(1):61-65.
作者姓名:王孝安
作者单位:陕西师范大学生物系
摘    要:应用无偏对应分析(DCA)及二岐指示种分析(TWINSPAN)对玛曲178个植物群落样方资料进行了多斐邓和数量分类,并应用植物群落的排序值与环境参数的多元回归分析出各群类型的定量环境解释,探讨了该区植物群的基本类型生态梯度及其与环境因子的定量关系。结果表明,玛曲的植物群落类型及基分布主要取惟地热量和湿度,并可通过环境参数地数字表达式定量地确定。

关 键 词:植物群落  多元分析  环境解释
收稿时间:1995/3/15 0:00:00
修稿时间:1995/9/10 0:00:00

MULTIVARIATE ANALYSIS AND ENVIRONMENTAL INTERPRETATION OF PLANT COMMUNITIES IN MAQU, SOUTH GANSU
WANG Xiao''an.MULTIVARIATE ANALYSIS AND ENVIRONMENTAL INTERPRETATION OF PLANT COMMUNITIES IN MAQU, SOUTH GANSU[J].Acta Ecologica Sinica,1997,17(1):61-65.
Authors:WANG Xiao'an
Abstract:In this paper, 178 plant community samples collected from Maqu, South Gansu were multivariately analysed by the detranded correspondence analysis (DCA) and the two way indicator species analysis(TWINSPAN). The quantitative environmental interpretation of various plant community types is given by the multivariate regression analysis which connects the ordination scores with environmental parameters. The primary plant community types, ecological gradients, and their quantitative relations with the environmental factors were studied. It is shown by the analysis that the vegetation types and their distribution are maily determined by the thermal and moisture gradients. They are quantitatively determined by the mathematical formulas which contains environmental parameters.
Keywords:multivariate analysis  environmental interpretation  plant communities    
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