| 应用主成分分析法研究思茅松林分的立地退化 |
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| 引用本文： | 刘小菊,石亮,苏静霞,张馨月.应用主成分分析法研究思茅松林分的立地退化[J].安徽农业科学,2010,38(19):10362-10363. |
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| 作者姓名： | 刘小菊 石亮 苏静霞 张馨月 |
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| 作者单位： | 新疆农业职业技术学院,新疆昌吉,831100 |
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| 基金项目： | 云南省中青年学术和技术带头人后备人才项目，云南省高等学校教学、科研带头人项目 |
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| 摘 要： | 在思茅松林集中分布的云南省景谷县选择不同栽植代数（原始林、天然次生林、人工林）的思茅松林,采用主成分分析法,选择土壤养分状态因子,进行立地质量退化的比较研究。结果表明,思茅松连栽后立地质量出现了逐渐退化现象。
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| 关 键 词： | 立地质量 思茅松 主成分分析法 |
Study on Soil Fertility Decline of Pinus kesiya var. langbianensis with Principal Component Analysis |
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| LIU Xiao-ju et al.Study on Soil Fertility Decline of Pinus kesiya var. langbianensis with Principal Component Analysis[J].Journal of Anhui Agricultural Sciences,2010,38(19):10362-10363. |
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| Authors: | LIU Xiao-ju |
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| Institution: | LIU Xiao-ju et al(Xinjiang Agricultural Vocational Technical College,Changji,Xinjiang 831100) |
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| Abstract: | The soil fertility of different generations(wildwood,second forest,plantation)of Pinus kesiya var.langbianensis were studied through the investigation in Jinggu,Yunnan Province,where is the central place of Pinus kesiya var.langbianensis.By using the principal component analysis method and selecting state factors of soil fertility to analyze the decline of site quality.The results showed that the site quality gradually decline if Pinus kesiya var.langbianensi are planted by generations. |
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| Keywords: | Soil quality Pinus kesiya var langbianensis Principal component analysis method |
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