| 宝天曼栎类天然林群落环境解释的多元分析 |
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| 引用本文： | 闫东锋,杨喜田. 宝天曼栎类天然林群落环境解释的多元分析[J]. 中国水土保持科学, 2011, 9(2): 100-105 |
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| 作者姓名： | 闫东锋 杨喜田 |
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| 作者单位： | 河南农业大学,450002,郑州 |
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| 基金项目： | 国家自然科学基金“不同植被恢复策略下土壤与植物根系的协同演替机制”(30872019) |
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| 摘 要： | 利用宝天曼自然保护区32块野外样地调查资料，通过选取21个分别代表植被群落、地形和环境的指标，采用主成分分析、聚类分析和典范相关分析方法，分别对三者之间的定量耦合关系进行分析。主成分分析结果表明，海拔和土壤厚度是指示植被变化的敏感指标；聚类分析结果显示,样地沿海拔梯度有规律分布,在划分的3种群落类型间，随着海拔的增加，土壤厚度在加大，而土壤含水量在减少，乔木种类增加而灌木、草本种类减少；植被、地形、环境指标集团的典范相关分析结果表明，地形与植被指标、环境与植被指标之间都存在者显著的相关关系，而地形与环境之间的相关关系并不显著，乔木种类及林分密度的变化能很好地反映地形和土壤的变化。
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| 关 键 词： | 多元统计 地形指标 环境指标 植被指标 宝天曼自然保持区 |
Multivariate analysis and environment interpretation of the Quercus natural secondary forest in Baotianman Nature Reserve |
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| Yan Dongfeng,Yang Xitian. Multivariate analysis and environment interpretation of the Quercus natural secondary forest in Baotianman Nature Reserve[J]. Science of Soil and Water Conservation, 2011, 9(2): 100-105 |
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| Authors: | Yan Dongfeng Yang Xitian |
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| Affiliation: | Yan Dongfeng,Yang Xitian(Henan Agriculture University,450002,Zhengzhou,China) |
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| Abstract: | Based on the survey in 32 plots in Baotianman Nature Reserve,the total 21 indices were selected to represent three types of factors including plant communities,terrain and environment characteristics.Principle component analysis,cluster analysis and canonical correlation analysis were employed to study the relationships among three types of factors.Principle component analysis showed that the elevation and soil thickness can be used as sensitive indices to describe plant change.Cluster analysis indicated th... |
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| Keywords: | multivariate statistical terrain index environment index plant index Baotianman Nature Reseve |
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