基于熵值法和CRITIC方法相结合的唐县生态敏感性评价  

Ecological Sensitivity Assessment of Tang County Based on Entropy and CRITIC Method

作　　者：陈媛瑶 江勇兵 魏爱华 黄春阳 薄丽媛 CHEN Yuanyao;JIANG Yongbing;WEI Aihua;HUANG Chunyang;BO Liyuan(Hebei GEO University,Shijiazhuang 050031,China;Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure,Hebei GEO University,Shijiazhuang 050031,China;Guangxi Geological Survey Institute,Nanning 530023,China)

机构地区：[1]河北地质大学水资源与环境学院,河北石家庄050031 [2]河北省水资源可持续利用与产业结构化协同创新中心,河北石家庄050031 [3]广西地质调查院,广西南宁530023

出　　处：《河北地质大学学报》2025年第1期87-93,共7页Journal of Hebei Geo University

基　　金：河北沧州平原区地下水与地面沉降国家野外科学观测研究站开放基金(CGLOS-2023-04)。

摘　　要：生态敏感性评价是衡量区域生态脆弱性的重要指标与城市规划的重要基础。研究区为唐县,针对其存在的生态环境问题及其影响因素,选取坡度等6个敏感性评价因子,建立生态风险的评价体系,利用熵值法与对比强度和冲突性指标法(CRITIC方法)确定各因子权重,并依托GIS空间分析技术对各指标因子实行加权叠加,通过对生态敏感性的综合评价,划定生态敏感性分区。结果表明,极高敏感区、高敏感区、中敏感区、轻敏感区、低敏感区占研究区的比例分别为18.70%、28.41%、13.06%、16.29%、23.54%。结论显示,生态敏感性较强的地区主要集中在县域北部的山地,中等敏感区和轻敏感区主要分布在中部丘陵区,敏感性较低的区域分布在南部的平原。Ecological sensitivity assessment is an important index to measure regional ecological vulnerability and an important basis for urban planning.The research area is Tang county.In response to the existing ecological environment problems and their influencing factors,six sensitivity evaluation factors including slope were selected to establish an ecological risk evaluation system.The entropy method and the CRITIC method were used to determine the weights of each factor,and GIS spatial analysis technology was used to weight and stack each indicator factor.Through comprehensive evaluation of ecological sensitivity,ecological sensitivity zones were delineated.The results showed that the proportion of extremely aeschynomenous range,high aeschynomenous range,medium aeschynomenous range,light aeschynomenous range and low aeschynomenous range were 18.70%,28.41%,13.06%,16.29%and 23.54%,respectively.Based on the evaluation results,the areas with higher ecological sensitivity are concentrated in the northern mountains of Tang county.The medium sensitive areas and light sensitive areas were mainly distributed in the central hilly area.Less sensitive areas are found in the southern plains.The evaluation results can provide theoretical basis for the classification of territorial ecological restoration zones in Tang county.

关 键 词：生态敏感性 GIS 熵值法 CRITIC方法 唐县 

分 类 号：X826[环境科学与工程—环境工程]