摘要
为科学构建国土空间生态安全格局,推进系统性与连续性的生态修复工作,以贵州省清镇市为例,利用最小累积阻力(MCR)模型和电路理论构建生态安全格局,运用自然断点分级法划定生态修复分区。结果表明:(1)清镇市生态源地共14个,面积235.72 km^(2)。(2)清镇市基础生态安全格局为“两横三纵”的空间格局。(3)清镇市共有11处生态夹点和38处生态障碍点,是需要进行生态修复的关键区域,面积分别为21.17、24.92 km^(2)。(4)将清镇市划分为生态保育区、生态提升区、生态控制区、生态修复区,面积分别为179.11、248.40、243.93、684.34 km^(2),生态修复区是生态夹点和生态障碍点集中分布的区域,需要优先开展生态修复工作。清镇市生态修复分区的划定是该区域分区分类分阶段开展生态修复工作的前提,可以为编制区域国土空间规划、实施国土空间综合整治与系统修复提供科学依据和技术支撑。
In order to scientifically construct the territorial spatial ecological security pattern and promote the systematic and continuous ecological restoration work,taking Qingzhen City,Guizhou Province as an example,the minimum cumulative resistance(MCR)model and circuit theory were used to construct ecological security pattern,and natural breaks classification was used to delimit ecological restoration zones.The results showed that:(1)there were 14 ecological sources in Qingzhen City,covering an area of 235.72 km^(2).(2)The basic ecological security pattern in Qingzhen City showed a spatial pattern of“two horizontal and three vertical areas”.(3)There were 11 ecological pinch points and 38 ecological barriers in Qingzhen City,which were the key areas for ecological restoration,with areas of 21.17 km^(2)and 24.92 km^(2),respectively.(4)Qingzhen City was divided into ecological conservation area,ecological improvement area,ecological control area and ecological restoration area,with areas of 179.11,248.40,243.93 km^(2)and 684.34 km^(2),respectively.Ecological restoration areas were areas where ecological pinch points and ecological barriers were concentrated,and the ecological restoration work should be carried out in priority.The division of ecological restoration zones in Qingzhen City was the premise for carrying out ecological restoration work in the region by zoning,classification and stage,and it could provide scientific basis and technical support for the compilation of regional territorial space plan and the implementation of comprehensive improvement of territorial space and systematic restoration.
作者
魏露露
金莲
WEI Lulu;JIN Lian(College of Public Management,Guizhou University of Finance and Economics,Guiyang Guizhou 550025;College of Economics,Guizhou University of Finance and Economics,Guiyang Guizhou 550025)
出处
《环境污染与防治》
CAS
CSCD
北大核心
2022年第7期966-971,共6页
Environmental Pollution & Control
基金
贵州省研究生科研基金资助项目(No.2020129)
贵州省教育厅青年科技人才成长项目(No.2022202)。
关键词
生态安全格局
景观连通性
生态修复
国土空间
分区
ecological security pattern
landscape connectivity
ecological restoration
territorial space
zoning
