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不同放牧强度下高寒草甸植被演替规律的数量分析
引用本文:周兴民,王启基,张堰青,赵新全,林亚平. 不同放牧强度下高寒草甸植被演替规律的数量分析[J]. 植物生态学报, 1987, 11(4): 276-285
作者姓名:周兴民  王启基  张堰青  赵新全  林亚平
作者单位:中国科学院西北高原生物研究所,中国科学院西北高原生物研究所,中国科学院西北高原生物研究所,中国科学院西北高原生物研究所,中国科学院西北高原生物研究所
摘    要: 本文采用数量分析方法,研究了不同放牧强度下高寒草甸植被的演替规律。聚类分析的结果,当相关系数R>0.850时,组成群落的24种植物聚合为6类,它们分别属于植物群落不同演替阶段的建群种,优势种或主要伴生种,当R>0.870时,6个放牧强度下的群落聚合为2类,分别属于以禾草植物为共建种的两层结构的植物群落和以矮嵩草(Kobresia humilis)以及 杂类草为共建种的单层结构的植物群落。

关 键 词:放牧强度  高寒草甸  演替规律  数量分析

QUANTITATIVE ANALYSIS OF SUCCESSION LAW OF THE ALPINE MEADOW UNDER THE DIFFERENT GRAZING INTENSITIES
Zhou Xing-min,Wang Qi-ji,Zhang Yan-qing,Zhao Xin-quan,Lin Ya-ping Northwest Plateau Institute of Biology,Academia Sinica. QUANTITATIVE ANALYSIS OF SUCCESSION LAW OF THE ALPINE MEADOW UNDER THE DIFFERENT GRAZING INTENSITIES[J]. Acta Phytoecologica Sinica, 1987, 11(4): 276-285
Authors:Zhou Xing-min  Wang Qi-ji  Zhang Yan-qing  Zhao Xin-quan  Lin Ya-ping Northwest Plateau Institute of Biology  Academia Sinica
Abstract:The succession law of the alpine meadow was studied with the met- hod of quantitative analysis under the different grazing intensities in this paper.The results have proved that there are close successive relations among communities under different grazing intensities.Clustering result shows that when correlation coefficient R>0.850,24 species plants of a community were grouped into 6 types,they respectively belong to dominant,constructive or accompanying species of successive different phases of a community and that when R>0.870,communities under 6 grazing intensities were grouped into 2 types.They respectively belong to community taking grasses as polydominant and of 2 layer structure, and taking Kobresia humilis and forbes as polydominant and of 1 layer structure.
Keywords:Grazing intensities  Alpine meadow  Succession law  Quantitative analysis  
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