生态安全格局时空演变分析--以太原城市群为例  

Analysis on the spatio-temporal evolution of ecological security patterns:A case study over Taiyuan Urban Agglomeration

作　　者：祁强强 徐占军[1] QI Qiang-qiang;XU Zhan-jun(College of Resources and Environment,Shanxi Agricultural University,Taigu 030801,China)

机构地区：[1]山西农业大学资源环境学院,山西太谷030801

出　　处：《中国环境科学》2023年第11期5987-5997,共11页China Environmental Science

基　　金：国家自然科学基金资助项目(51304130);山西省人民政府重大决策咨询课题(ZB20211703);山西省高等学校哲学社会科学研究项目(201803010);山西省软科学研究计划项目(2018041060-2);山西省哲学社会科学规划课题(2020YJ052);山西省基础研究计划项目(20210302123403)。

摘　　要：以太原城市群为例,利用形态学空间格局分析(MSPA)探究2000年、2010年和2020年生态源地的变化情况,并利用电路理论识别生态廊道、生态夹点和生态屏障点,从而构建区域生态安全格局,明晰生态安全格局的演化趋势,识别生态修复的重点区域,并制定了针对性的修复措施.研究表明,随着时间的推移,研究区生态源地面积由2000年3083.38km^(2)增长至2020年3144.17km^(2),但空间分布不均,呈西部多、中东部少的空间格局.受生态源地增加的影响,区域内生态廊道数量由2000年69条增长至2020年90条,景观连通性增强.其中,西部生态廊道数量多且以短距离为主,而东西部生态廊道长度长、阻力大.研究期间,生态夹点面积整体呈增加趋势,由2000年的47.64km^(2)增加至2010年的97.98km^(2),2020减少至83.77km^(2);障碍点面积呈减少趋势,由2000年的451.78km^(2)减少2020年395.95km^(2),这类区域应作为生态保护和修复的重点区域.本研究可为区域生态修复和景观规划提供参考.Taking the Taiyuan urban agglomeration as an instance,Morphological Spatial Pattern Analysis(MSPA)was applied to explore the changes in ecological source areas in the years of 2000,2010,and 2020,and circuit theory was adopted to identify ecological corridors,ecological pinch points,and ecological barrier points,so as to construct a regional ecological security pattern,clarify the evolution trend of ecological security pattern,recognize the key areas for ecological restoration,and formulate targeted restoration measures.The research showed that the ecological source area of the study area increased from 3083.38km^(2) in 2000 to 3144.17km^(2) in 2020 with time,which faced the challenge of uneven spatial distribution,showing a spatial structure of sufficiency in the west and inadequacy in the central and eastern regions.Influenced by the increased ecological source areas,the number of ecological corridors in the region increased from 69 in 2000 to 90 in 2020,enhancing landscape connectivity,of which,the western ecological corridors showed the features of large quantities and short distances,while the eastern and western ecological corridors were of long lengths and high resistance.During the research period,the overall area of ecological pinch points showed an increasing trend,with an increased area of 47.64km^(2) in 2000 to 97.98km^(2) in 2010 and a decreased area of 83.77km^(2);the area of barrier points showed a decreasing trend,with a decreased area of 451.78km^(2) in 2000 to 395.95km^(2) in 2020.Those areas should be deemed as a crucial area for ecological protection and restoration.This study was of great significance,providing guidance for regional ecological restoration and landscape planning.

关 键 词：MSPA 电路理论 生态安全格局 生态修复 

分 类 号：X87[环境科学与工程—环境工程]