| 贵州喀斯特石漠化类型及程度评价 |
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| 引用本文： | 王德炉,朱守谦,黄宝龙.贵州喀斯特石漠化类型及程度评价[J].生态学报,2005,25(5):1057-1063. |
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| 作者姓名： | 王德炉 朱守谦 黄宝龙 |
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| 作者单位： | 1. 贵州大学林学院,贵阳,550025
2. 南京林业大学资源与环境学院,南京,210037 |
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| 基金项目： | 贵州省省长人才基金资助项目 (2 0 0 3 -0 4-12 )，贵州大学人才基金资助项目~~ |
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| 摘 要： | 由于碳酸盐岩岩性的不同,发育的喀斯特在生态环境因子的组合和质量上有较大的差异,形成了不同的石漠化类型。在大量典型样地调查的基础上,以岩性、小生境种数、小生境组合、裸露石面面积、石砾含量和土壤总量6个因子为指标,通过聚类分析和主成分分析相结合的方法,将喀斯特石漠化分为2大类型,即显性石漠化和隐性石漠化,分析比较了它们的主要特征。同时,分别石漠化类型选择了程度评价指标,用坐标综合评定法和欧氏距离公式建立了石漠化数量评价模型,即石漠化程度指数模型,用石漠化程度指数对样地的石漠化现状进行了评价,将6 4个样地划分为未石漠化,轻度、中度、强度和极强度5个等级。
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| 关 键 词： | 贵州 喀斯特石漠化 数量评价 |
| 文章编号： | 1000-0933(2005)05-1057-07 |
| 收稿时间： | 2004/5/10 0:00:00 |
| 修稿时间： | 2004/11/21 0:00:00 |
Preliminary study on types and quantitative assessment of Karst rocky desertification in Guizhou Province, China |
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| WANG Delu,ZHU Shouqian and HUANG Baolong.Preliminary study on types and quantitative assessment of Karst rocky desertification in Guizhou Province, China[J].Acta Ecologica Sinica,2005,25(5):1057-1063. |
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| Authors: | WANG Delu ZHU Shouqian and HUANG Baolong |
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| Institution: | .Forestry college of Guizhou university; Guiyang; China |
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| Abstract: | Karst rocky desertification is a special process and phenomenon that transforms a karst area into rocky landscape resulted from almost devoid of soils and vegetation. Different carbonate rocks have different types of weathering, soil pedogenesis and characteristics of hydrology, which leads to making different karst terrains and rocky desertification. Degrees of karst rocky desertification vary differently with changes in the types of disturbance, their intensity, timing, and magnitude. Due to a lack of und... |
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| Keywords: | Guizhou Karst rocky desertification quantitative assessment |
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