摘要
As a material carrier contributing to human survival and social sustainable development,the ecological environment is declining in its integrity and overall health.With the rapid development of society and economy,it is currently very necessary to carry out ecological security evaluation research to provide scientific guidance and suggestions for the construction of ecological civilization and the harmonious co-existence between man and nature.Taking Altay region as the research area,this paper collected and integrated regional geological,geographical,cultural,socio-economic,and statistical data,as well as previous research results.Combined with DPSIR and EES framework model,the evaluation index system of land resource ecological security in Altay region was constructed by using the analytic hierarchy process,entropy method and linear weighted summation function method.Using this index system,the evaluation research work was carried out to determine the current state of the security situation and the major threats which should be addressed.(1)The overall ecological security situation of Altay region was relatively safe,while the local ecological security situation was relatively fragile.Among them,the areas with safe and safer ecological environment accounted for 38.72%,while the areas with critically safe status accounted for 30.83%,and the areas with a less safe and unsafe environment accounted for 30.45%.In terms of spatial characteristics,the areas with unsafe ecological environment were mainly distributed in the west and east of the study area,while the areas with good ecological environment were distributed in the north of the study area.(2)Large-scale mining activities,frequent geological disasters,large-scale reclamation and long-term cultivation of arable land,and long-term large-scale grazing activities resulting in the destruction of grassland and vegetation were the main factors leading to the prominent ecological security problems of land resources in the Altay region.Therefore,in the process of the continuous development of the urban economy,we should pay more attention to the harmony between man and nature,and also actively and effectively advocate and implement certain policies and measures,such as returning farmland to forest,returning grazing land to grassland and integrating the mining of mineral resources.
生态环境作为满足人类生存以及社会可持续发展的物质承载体其完整性和整体健康水平正在不断下降,在社会经济不断飞速发展的今天,进行生态安全评价研究,为生态文明建设以及人与自然和谐共生提供科学指导和建议十分必要。以阿勒泰地区为研究区,收集整理区域地质、地理、人文、社会经济、统计资料以及前人研究成果,结合DPSIR-EES框架模型,运用层次分析法、熵值法、线性加权求和函数法构建了阿勒泰地区土地资源生态安全评价指标体系开展评价研究工作。结果表明:(1)阿勒泰地区总体生态安全状况较为安全,局部生态安全状况较为脆弱,其中生态环境状况为安全和较安全的区域共占38.72%,处于临界安全的区域占30.83%,较不安全和不安全的区域共计占比30.45%。空间特征上生态环境不安全区域主要分布于研究区西部与东部,而生态环境较为良好的区域则是分布在研究区的北部。(2)大规模的矿山开采活动、地质灾害频发、耕地的大面积开垦与长期耕种、长期大规模放牧活动致使草地与植被遭到破坏等是致使阿勒泰地区土地资源生态安全问题突出的主要因素,因此在城市经济不断发展的过程中应注意人与自然和谐相处,积极有效地提倡与落实退耕还林、退牧还草以及矿产资源整合开采等政策措施。
基金
The Key Program of Basic Research of Yunnan Province,China(2019FA017)
The Multi-Government International Science and Technology Innovation Cooperation Key Project of National Key Research and Development Program of China(2018YFE0184300)
The Postgraduate Scientific Research Fund Project of Yunnan Provincial Department of Education(2021Y501)。
作者简介
First author:YE Hui,E-mail:xiaohuihui_ye@foxmail.com;Corresponding author:WANG Jinliang,E-mail:jlwang@ynnu.edu.cn。
