| 生态破坏诱发中国水旱灾害程度及计量——以90年代为例 |
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| 引用本文： | 徐嵩龄.生态破坏诱发中国水旱灾害程度及计量——以90年代为例[J].中国人口．资源与环境,1999,9(4):46-51. |
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| 作者姓名： | 徐嵩龄 |
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| 作者单位： | 中国社会科学院环境与发展研究中心!北京，100732 |
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| 摘 要： | 生态破坏表现为植被破坏、水土流失、水系统淤塞，利用自然致灾因子和生态破坏因子可以构建水旱灾害的致灾函数。本文利用灾函数计算了生态破坏对中国９０ 年代水旱灾害的致灾影响度
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| 关 键 词： | 水旱灾害 生态破坏 致灾函数 致灾影响度 |
THE EFFECT OF CHINA'S ECOLOGICAL DEGRADATION ON INDUCING FLOOD AND DROUGHT DISASTERS AND ITS MEASURING: WITH A CASE STUDY OF THE 1990 |
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| Xu Songling.THE EFFECT OF CHINA''S ECOLOGICAL DEGRADATION ON INDUCING FLOOD AND DROUGHT DISASTERS AND ITS MEASURING: WITH A CASE STUDY OF THE 1990[J].China Polulation.Resources and Environment,1999,9(4):46-51. |
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| Authors: | Xu Songling |
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| Abstract: | Tihe paper argues that the ecological degradation is the most important human disaster inducing factors for China's flood and drought disasters. Elements of ecological degradation include deforestation,erosion,and river system silting.Three sorts of disaster causing functions can be constructed in terms of natural and human disaster inducing factors,and among them the function with a relative value form is much simpler and more pragmatic than the others. Furthermore, this function is used to measure the effectiveness of ecological degradation on causing China's flood and drought disasters in the 1990s. |
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| Keywords: | flood and drought disasters ecological degradation human disaster inducing factor effectiveness on causing disasters |
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