Dynamic Change Evaluation of Water Resources Ecological Carrying Capacity in Bijie City of Guizhou Province

doi:10.3969/j.issn.1674-0696.2015.02.17

Abstract

Abstract: Through factor analysis, a relatively intact ecological carrying capacity of water resources in karst areas reflects changing trends in the evaluation system was selected. Entropy method is used to endow weight for different indices, grey analysis method is employed to carry on comprehensive evaluation of the Bijie City, Guizhou province. The results demonstrate that the carrying capacity of water resources in 2007 is of the highest level, carrying capacity level of water resources after 2007 is decreased yearly; population and economic developments are confirmed to be two pressed factors for the water resources carrying capacity.

Key words: environmental engineering, water resources ecological carrying capacity, factor analysis, entropy weight method, grey correlation method.

摘要： 通过因子分析法筛选出一套相对完整的反映喀斯特地区水资源生态承载力动态变化趋势的评价指标体系，用熵权法对指标进行赋权，并通过构建灰色关联模型对贵州省毕节市2005-2010 年的水资源生态承载力的状况作了客观的评价。结果表明:2005-2010 年，毕节市水资源生态承载力相对较好，与最佳水平状况的关联度都保持在0.85以上，2007年的水资源生态承载力相对水平达到最高，此后水资源生态承载力便开始逐年下降，人口和经济发展是水资源生态承载力的两大压力因素。

关键词: 环境工程, 水资源生态承载力, 因子分析法, 熵权法, 灰色关联法

CLC Number:

P933

Guan Dongjie, Su Yin, Zuo Taian, Su Weici. Dynamic Change Evaluation of Water Resources Ecological Carrying Capacity in Bijie City of Guizhou Province[J]. Journal of Chongqing Jiaotong University(Natural Science), 2015, 34(2): 77-84.

官冬杰,苏印,左太安,苏维词. 贵州省毕节市水资源生态承载力动态变化评价[J]. 重庆交通大学学报（自然科学版）, 2015, 34(2): 77-84.

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