| 石漠化地区石灰岩喀斯特林地土壤抗蚀性研究 |
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| 引用本文： | 赵洋毅,段旭.石漠化地区石灰岩喀斯特林地土壤抗蚀性研究[J].科技资讯,2013(4):244-246. |
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| 作者姓名： | 赵洋毅 段旭 |
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| 作者单位： | 1. 西南林业大学环境科学与工程学院
2. 西南林业大学林学院 云南昆明 650224 |
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| 基金项目： | 西南林业大学科研专项，西南林业大学水土保持与荒漠化防治重点学科资助 |
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| 摘 要： | 对贵州中部石灰岩喀斯特地区3种林分（常绿阔叶林,构树林和灌木林）林地土壤的抗蚀性指标进行主成分分析,并以农地土壤作对照,研究表明,用抗蚀性指标主成分分析综合指数表明3种林分林地土壤抗蚀性为：阔叶林（88.90）〉构树林（77.02）〉灌木林（62.69）;表层土壤抗蚀性（97.14）高于亚表层土壤抗蚀性（67.30）,土壤抗蚀性从表层向下呈下降趋势。通过聚类分析可将贵州中部石灰岩喀斯特不同土地利用类型不同层次的8土壤样本划分为抗蚀性强度不同的3类,与评价结果一致。
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| 关 键 词： | 黔中 石灰岩 林地 喀斯特土壤 土壤抗蚀性 |
Anti-erodibility Analysis in Forest Soil under the Limestone Region of Karst Area in the Middle of Guizhou |
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| ZHAO Yang-yi
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DU Xu.Anti-erodibility Analysis in Forest Soil under the Limestone Region of Karst Area in the Middle of Guizhou[J].Science & Technology Information,2013(4):244-246. |
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| Authors: | ZHAO Yang-yi DU Xu |
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| Institution: | ZHAO Yang-yi, DU Xu (1 .College of Environment Science and Engineering, Southwest Forestry University Kunming 650224,China; 2.College of Forestry, Southwest Forestry University Kunming 650224,China) |
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| Abstract: | Principal component analysis（PCA）was used to study the anti--erodibility of forest soil in 3 foreststbroadleai forest, broussonetia papyrifera and shrub forest） , compared to arable land soil,in the Limestone Region of Karst Area in the Middle of Guizhou.PCA comprehensive exponent of anti--erodibility indexes shows that the order of anti--erodibility：broadleaf forest（88.90）〉 broussonetia papyrifera forest（77.02）〉shrub forest（62.69）,and that the anti--erobility of soiI in the area is in decreasing trend from topsoil to bottom soil（97.14,67.30）.The 8soil samples in all soil layers in different land use types can be classified in to 3 sorts with different anti--erodibility on the basis of fuzzy--cluster--ing analysis. |
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| Keywords: | The middle of Guizhou Limestone Forest soil Karst soil Anti--erodibility |
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