| 基于主成分分析的大兴安岭高寒区典型火烧迹地土壤质量评价研究 |
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| 引用本文： | 何平平,康可佳,宋利臣.基于主成分分析的大兴安岭高寒区典型火烧迹地土壤质量评价研究[J].环境科学与管理,2015(6):170-173. |
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| 作者姓名： | 何平平 康可佳 宋利臣 |
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| 作者单位： | 1. 黑龙江省环境科学研究院,黑龙江 哈尔滨,150056;2. 哈尔滨市环境保护监察支队,黑龙江 哈尔滨,150076 |
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| 摘 要： | 以大兴安岭高寒区典型火烧迹地为研究对象，选取土壤表层（0 cm～5 cm）枯落层厚度、土壤含水率、午间均温、土壤容重、水稳性团聚体、pH等12项表征土壤物理、化学、生物学性质的指标，运用主成份分析方法，对森林土壤质量进行评价。结果显示：林火对所有指标的影响度均达到显著水平（ρ＜0.01）。对照林地综合得分（0.194）明显大于火烧迹地综合得分（0.101），表明林火短期内可使森林土壤质量降低。
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| 关 键 词： | 林火 土壤质量 主成份分析 评价 |
Evaluation of Burned Soil Quality in Typical Alpine Area of Greater Xing'an Mountains Based on Principal Component Analysis |
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| He Pingping,Kang Kejia,Song Lichen.Evaluation of Burned Soil Quality in Typical Alpine Area of Greater Xing'an Mountains Based on Principal Component Analysis[J].Environmental Science and Management,2015(6):170-173. |
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| Authors: | He Pingping Kang Kejia Song Lichen |
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| Abstract: | Taking the typical alpine area of greater Xing'an mountains as the research object, this study selected 12 physical, chemical or biological indexes in the soil surface (0~5 cm), including litter thickness, soil moisture, midday average tempera-ture, soil bulk density, water stable aggregates, pH, to evaluat the burned soil quality using principal component analysis.The results showed that the impact of forest fire on all indicators have reached a significant level (ρ <0.01 ) .The score of control group(0.194) was significantly higher than that of forest fire (0.101), which showed that forest soil quality could be decreased by forest fire in a short time. |
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| Keywords: | forest fire soil quality principal component analysis evaluation |
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