摘要
【目的】经济快速发展的沿海城市或多或少都将面临城市集中发展与扩展导致的生态空间布局破碎化、城市绿量减少以及绿地孤岛化问题,通过市域等级的生态网络构建可以连接区域绿地,增加生态多样性保护能力。【方法】本研究以莆田市为例,运用了MSPA分析法、景观连通性提取生态源地,通过空间主成分分析法构建出生态综合阻力面,基于电路理论提取及识别生态廊道、生态夹点和生态障碍点,初步构建出莆田市生态网络,最后再通过增加“踏脚石”、新增生态源地、修复生态断点等方法优化研究区生态网络。【结果】结果表明:初步提取生态源地面积1515.12 km^(2),生态廊道43条,生态节点18个。优化后共提取生态源地面积1577.41 km^(2),利用7个新增“踏脚石”、5块新增生态源地、34个生态断点的识别与修复和对生态节点的重点关注的方法完成了对莆田市生态网络的优化,优化后的生态网络拥有23块生态源地以及58条生态廊道,廊道的网络结构更加稳固,廊道网络分析指标均有小幅度提升。【结论】本研究成果对于莆田市未来的生态文明建设和区域生态治理有一定的参考作用,对于未来莆田市生态网络的进一步研究提供借鉴。
【Objective】Coastal cities experiencing rapid economic development will,to varying degrees,face issues such as fragmented ecological spatial layout,reduced urban green coverage,and isolated green spaces resulting from concentrated urban development and expansion.【Method】The construction of an urban-level ecological network can connect regional green spaces and enhance the capacity for ecological diversity conservation.This study takes Putian City as an example,employing the MSPA analysis method and landscape connectivity to extract ecological source areas.Through spatial principal component analysis,an ecological comprehensive resistance surface is constructed.Based on circuit theory,ecological corridors,ecological pinch points,and ecological barrier points are extracted and identified,initially establishing the ecological network of Putian City.Subsequently,the ecological network in the study area is optimized by adding"stepping stones,"new ecological source areas,and repairing ecological discontinuities.【Result】The results indicate that the initially extracted ecological source area covers 1515.12 km^(2),with 43 ecological corridors and 18 ecological nodes.After optimization,the total extracted ecological source area increases to 1577.41 km^(2).The optimization of the ecological network in Putian City is achieved through the identification and repair of 7 new"stepping stones,"5 new ecological source areas,34 ecological discontinuities,and a focus on ecological nodes.The optimized ecological network comprises 23 ecological source areas and 58 ecological corridors,with a more stable network structure and slight improvements in corridor network analysis indicators.【Conclusion】The findings of this study provide a reference for the future ecological civilization construction a nd regional ecological governance in Putian City,and offer insights for further research on the ecological network of Putian City.
作者
任博闻
王思鹏
陆东芳
REN Bowen;WANG Sipeng;LU Dongfang(Fujian Agricultural and Forestry University,Fuzhou Fujian 350002)
出处
《山东林业科技》
2026年第1期61-70,共10页
Journal of Shandong Forestry Science and Technology
关键词
MSPA
空间主成分分析
电路理论
生态网络
莆田市
MSPA
spatial principal component analysis
circuit theory
ecological network
putian city
