位置:成果数据库 > 期刊 > 期刊详情页
基于熵权灰色关联分析的城市生态安全评价
  • 期刊名称:生态学杂志,2008,27(7):1249—125
  • 时间:0
  • 分类:X171.1[环境科学与工程—环境科学]
  • 作者机构:[1]重庆师范大学地理科学学院,重庆400047, [2]贵州省科学院山地资源研究所,贵阳550001
  • 相关基金:国家自然科学基金项目(40561006)、国家社会科学基金项目(06XJY017)、贵州省优秀青年科技人才培养计划项目(黔科人字(2005)013)、贵州省自然科学基金项目(黔科基字2006(096号))和重庆市教委科研项目资助(KJ050808).
  • 相关项目:脆弱生态约束下岩溶山区乡村可持续发展的导向模式研究
中文摘要:

基于压力-状态-响应概念模型,构建区域生态安全评价指标体系。采用熵权法对各评价指标赋权,熵权赋权克服了多指标评价中主观确定权重的不确定性。建立安全评价指标标准,利用灰色关联方法计算重庆市的生态安全的关联度,以此对重庆市的生态安全做出评估。结果表明:该方法对城市生态安全进行熵权灰色关联评价的结果与实际相吻合,为区域生态安全定量化评价提供了新的手段,具有一定的实用价值和推广意义。

英文摘要:

An assessment indicator system of regional ecological security was set up based on Pressure-State-Response Model. Entropy was used to determine the weights of assessment indicators, which avoided the uncertainty in estimating the weights subjectively. The standards of security assessment indictors were established, the correlation degree of ecological security in Chongqing was calculated by gray correlation analysis, and then, an assessment of Chongqing urban ecological security was made. The assessment result of the urban ecological security by the method of entropy-weighted gray correlation analysis was identical with actual situation, suggesting that this method offered a new means to quantitatively assess regional ecological security and had certain practical value and popularization meaning.

同期刊论文项目
同项目期刊论文