摘要
文章针对日益突出的水土资源生态安全问题,构建DPSIR水土资源生态安全指标体系。在此基础上提出了兼顾指标主客观、相关性与区分度的概念模型,运用层次分析法、熵权法、person相关系数与指标信息贡献率等方法对原始指标体系进行筛选与度量。通过灰色熵权法与综合评价法对2003-2015年黑龙江水土资源生态安全现状进行实例验证。结果显示:原始指标评价结果与核心指标评价结果误差绝对值<10%、隶属安全等级一致,2003-2011年生态安全等级为Ⅲ级、2012-2015年生态安全等级为Ⅳ级。表明该方法针对多因素指标筛选合理有效,对评价过程中指标冗余问题具有较好的精简能力。
Aiming at the increasingly prominent ecological security issues of water and soil resources,the ecological safety index system of regional water and soil resource was constructed through the DPSIR conceptual model.On this basis,a conceptual model that takes into account of the subjective and objective,relevance and discrimination of indicators was proposed.The analytic hierarchy process,entropy weight method,Person correlation coefficient and index information contribution rate are used to screen and measure the original index system.Finally,the grey entropy weight method and comprehensive evaluation method are used to verify the ecological security status of water and soil resources of Heilongjiang from 2003 to 2015.The results show that the absolute value of the original index evaluation result and the core index evaluation result is less than 10%,and the subordinate security level is the same,and the ecological security level during 2003-2011 isⅢ,and that during 2012-2015 isⅣ.It shows that the method is reasonable and effective for multi-factor index screening,and has better streamlining ability for indicator redundancy in evaluation problems.
作者
许东阳
任永泰
成琨
XU Dongyang;REN Yongtai;CHENG Kun(College of Engineering,Northeast Agricultural University,Harbin 150030,China;College of Science,Northeast Agricultural University,Harbin 150030,China)
出处
《环境科学与技术》
CAS
CSCD
北大核心
2019年第2期210-214,共5页
Environmental Science & Technology
基金
国家自然科学基金项目(51609039)
中国博士后科学基金(2016M601410)
黑龙江省自然科学基金(E2017006)
黑龙江省博士后科学基金(LBH-Z16025)
关键词
层次分析法
熵权法
水土资源生态安全
DPSIR模型
analytic hierarchy process
entropy weight method
ecological security of water and soil resource
DPSIR model
