基于不同评价模型的土地生态安全评价——以山东半岛蓝色经济区为例

发布时间：2018-11-08 13:22

【摘要】：为寻求最适宜的土地生态安全评价模型。研究在经过相同数据处理方法及熵权赋权下,运用物元模型、TOPSIS模型和综合指数模型对2013年山东半岛蓝色经济区七市的土地生态安全水平进行评价。三种评价模型得出的评价结果总体排名一致,土地生态安全水平由高到低均为威海、东营、青岛、烟台、滨州、日照和潍坊,三种评价模型具有科学性和合理性;不同评价模型下各城市评价等级存在明显差异,通过对比发现最适宜的土地生态安全评价模型为物元模型;物元分析结果表明人均水资源量、单位耕地农药施用量及化肥施用量、工业固废综合利用率和农业机械化程度是制约山东半岛蓝色经济区土地生态安全水平的主要因素。物元模型为最适宜的土地生态安全评价模型,研究结果为山东半岛蓝色经济区生态安全保护工作提供科学依据,研究方法为生态安全评价提供借鉴。
[Abstract]:In order to find the most suitable land ecological security evaluation model. Based on the same data processing method and entropy weight weighting, the land ecological security level of seven cities in the blue economic zone of Shandong Peninsula in 2013 was evaluated by using matter-element model, TOPSIS model and comprehensive index model. The evaluation results of the three evaluation models are consistent, the land ecological security level from high to low are Weihai, Dongying, Qingdao, Yantai, Binzhou, Rizhao and Weifang. The three evaluation models are scientific and reasonable. There are obvious differences in the evaluation grades of different cities under different evaluation models. The most suitable land ecological security evaluation model is matter-element model. The results of matter element analysis show that the per capita water resources, the amount of pesticide and fertilizer applied per unit cultivated land, the comprehensive utilization ratio of industrial solid waste and the degree of agricultural mechanization are the main factors restricting the land ecological security level in the blue economic zone of Shandong Peninsula. The matter element model is the most suitable land ecological security evaluation model. The research results provide scientific basis for the ecological security protection work in the blue economic zone of Shandong Peninsula, and the research method provides a reference for the ecological security evaluation.
【作者单位】：山东农业大学资源与环境学院;山东省土地调查规划院;
【分类号】：X826

【相似文献】