基于主成分聚类法的安徽省土地生态安全评价  

Evaluation of land ecological security in Anhui Province based on principal component clustering analysis

作　　者：侯小宇 何刚[1] 王晓东 谷雅娴 HOU Xiao-yu;HE Gang;WANG Xiao-dong;GU Ya-xian(School of Economics and Management,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学经济与管理学院,安徽淮南232001

出　　处：《哈尔滨商业大学学报（自然科学版）》2022年第4期505-512,共8页Journal of Harbin University of Commerce：Natural Sciences Edition

基　　金：国家自然科学基金(51574010);安徽省社会科学创新发展研究课题攻关研究项目(2019CX110);安徽省哲学社会科学规划项目(AHSKY2019D026).

摘　　要：为了明确土地生态状况,找出土地生态安全的影响因素,利用主成分分析和聚类分析方法,基于经济-环境-社会(EES)模型选取12个代表性指标,构建土地生态安全评价指标体系,对安徽省16个地级市的土地生态安全进行综合评价和等级划分.结果显示,安徽省16个地级市的土地生态安全综合得分排名为:合肥、芜湖、滁州、蚌埠、阜阳、亳州、马鞍山、淮北、六安、宣城、安庆、淮南、宿州、铜陵、黄山、池州;处于安全状态地级市有1个,临界安全状态的有6个,极不安全状态的9个;经济密度、农药施用强度、人均道路面积、城镇化水平、农业机械总动力是影响土地生态安全状况的主要因素.因此,安徽省应重视临界安全状态和极不安全状态地区的生态文明建设,利用科学合理的方法来提高土地生态安全水平.In order to clarify the status of land ecology and find out the relevant influencing factors of land ecological security,principal component analysis and cluster analysis were used in this paper.Based on the model of Economy-Environment-Society(EES),12 representative indexes were selected to construct the evaluation index system of land ecological security,and the land ecological security of 16 prefecture-level cities in Anhui province was comprehensively evaluated and graded.The results showed that the comprehensive score of land ecological security of 16 prefectural cities in Anhui province was as follows:Hefei,Wuhu,Chuzhou,Bengbu,Fuyang,Bozhou,Ma'anshan,Huaibei,Lu′an,Xuancheng,Anqing,Huainan,Suzhou,Tongling,Huangshan,Chizhou;there are 1 prefecture-level cities in safe state,6 cities in critical safe state and 9 cities in extremely unsafe state;economic density,pesticide application intensity,road area per capita,urbanization level and total power of agricultural machinery are the main factors affecting land ecological security.Therefore,Anhui province should pay attention to the construction of ecological civilization in critical and extremely unsafe areas,and use scientific and reasonable methods to improve the level of land ecological security.

关 键 词：土地生态安全 主成分分析 聚类分析 综合评价 EES模型 因子载荷 

分 类 号：F321.1[经济管理—产业经济]