| 干旱区土地退化生态系统的评价方法 |
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| 引用本文： | 刘玉平. 干旱区土地退化生态系统的评价方法[J]. 干旱区研究, 1996, 0(1) |
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| 作者姓名： | 刘玉平 |
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| 作者单位： | 中国科学院自然资源综合考察委员会 |
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| 摘 要： | 本文简要介绍了我国干旱区的二种分类方法、分布面积和自然特点。干旱区土地生态系统退化的主要类型有草场退化，而养耕地退化和灌溉地退化，国内外各种退化类型的分布面积。提出退化土地生态系统评价原则，主要退化土地的评价指标体系，评价因子权重的确定方法，综合评价方法及地理信息系统的应用。
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| 关 键 词： | 干旱区，退化土地生态系统，评价指标体系 |
The Evaluation Method on Ecosystem of Sand Degradation in Arid Area |
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| Liu Yuping. The Evaluation Method on Ecosystem of Sand Degradation in Arid Area[J]. Arid Zone Research, 1996, 0(1) |
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| Authors: | Liu Yuping |
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| Abstract: | This paper briefly introduced the two classification methods,distribution area and natural features of arid area in China. Grassland degradation,plough degradation and irrigation land degradation are the main typeS of ecosystem degradation of arid land. It put forward the evaluation principle of degraded land degradation,evaluation index system of major degraded land,comprehensive evaluation method and the application of geographic imformation system. |
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| Keywords: | arid area ecosystem of degraded land evaluation index system |
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