基于SAHDT方法的湖南省土地生态安全评价  

Land eco-security evaluation analysis of Hunan by SAHDT method

作　　者：胡东滨[1] 谭文清 黄炜 HU Dong-bin;TAN Wen-qing;HUANG Wei(School of Business,Central South University,Changsha,410083,China;School of Information Technology,South China Normal University,Guangzhou 510631,China)

机构地区：[1]中南大学商学院,长沙410083 [2]华南师范大学教育信息技术学院,广州510631

出　　处：《安全与环境学报》2021年第2期866-873,共8页Journal of Safety and Environment

基　　金：国家自然科学基金重大项目(71991483);中国工程院咨询研究项目(2019-XY-35)。

摘　　要：为了解决目前土地生态安全评价方法存在的稳定性不高、拓展性不强等问题,通过DPSIR框架构建土地生态安全评价指标体系,选取湖南省7个具有代表性地形(平原、山地、丘陵、盆地等)以及经济相对发达的地级市作为样本,利用逼近的对抗哈斯图(SAHDT,Squeeze Adversarial Hasse Diagram Technology)评价方法对其2017年的土地生态安全状况进行评价。SAHDT依据偏序集理论对评价方案的正负理想点距离值进行比较,并通过哈斯图将该偏序关系图形化,进而展现评价对象的优劣排序和层级关系。评价结果显示区域经济发展水平、土地类型分布和环境污染治理等因素使湖南省各地级市土地生态安全有较大差异。其中长沙市、株洲市和衡阳市的土地状态较为良好,娄底市、岳阳市、郴州市和怀化市的土地安全形势相对严峻。结合评价结果为湖南省土地生态发展提出了政策建议。The purpose of this paper is to evaluate the land ecological security quality of the prefecture-level cities of Hunan in2017,which has been done comprehensively via the exploration of the influential factors of the regional differences in terms of land ecological security. And,for the said purpose of the paper,we have chosen 7 cities through the representative terrains( i. e.the plains,the mountainous ranges,hillsides,as well as the basins) in the economic development in Hunan. Based on the actual situation of the said province,we have managed to organize a comprehensive evaluation index system with the land ecological security as a chief goal under the DPSIR framework included.And,furthermore,to improve the scientificity and applicability of the comprehensive assessment method,we have managed to ameliorate the traditional HDT( Hasse Diagram Technology) approach by suggesting the SAHDT( Squeeze Adversarial Hasse Diagram Technology) assessment method. Moreover,since the SAHDT assessment method can rank the pros-&-cons of each evaluation scheme by HDT through the concepts of positive and negative idealistic points and closeness extent in the TOPSIS evaluation model,it has enabled us to construct a set of antagonistic matrices of SAHDT primarily based on the distance between the positive and negative idealistic points of the assessment index. Thus,consequently,we have reordered the columns of the antagonistic matrixes according to the weighting ranks,so as to gain the accumulative matrix through the cumulative transformation. And,last of all,on the basis of the accumulative matrix,the assessment scheme has been properly set up in correspondence with the theory of partial ordered sets. And,thus,finally,the hierarchical relationship and the hierarchical approximation process of the assessment goals prove the ranking and hierarchical approximation process of the assessment scheme by the topological hierarchy diagrams in the 3-Ds through multiple topological hierarchy diagrams. Hence,the SAHDT assessment method can cate

关 键 词：环境学 生态安全 土地 哈斯图 DPSIR 湖南省 

分 类 号：X826[环境科学与工程—环境工程]