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| 基于生态重要性的县域绿地生态网络构建与优化研究 |
| Construction and Optimization of County level Green Space Ecological Network Based on Ecological Importance |
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| DOI： |
| 中文关键词: 绿地生态网络 InVEST模型 电路理论 生态重要性 生态源地 仙游县 |
| 英文关键词: |
| 基金项目:国家自然科学青年基金资助项目（32301661）；福建省第一批双创人才第一阶段支持经费基金资助项目（115-K8615001A）报告 |
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| 中文摘要: |
| 以仙游县为例，运用最小累积阻力模型、电路理论及重力模型等，探究2001—2021年该县生态源地、生态廊道、生态夹点和障碍点的演变情况，构建县域尺度的绿地生态网络，分析其演变过程与成因，并提出优化措施。结果表明：仙游县生态源地面积由2001年30188km2增长至2021年31920km2，集中分布在北部林地区域，生态源地破碎化加剧导致源地与生态廊道数量增加；生态夹点面积从2001年1618km2增长至2021年1648km2，而生态障碍点面积则从2177km2减少至1750km2；基于生态重要性与源地演变分析所构建的仙游县绿地生态网络包含核心源地面积27423km2、潜在源地面积2918km2、生态廊道39条、生态踏脚石27个、生态夹点33个和生态障碍点30个。 |
| 英文摘要: |
| Taking Xianyou County as an example， this research explored the evolution of ecological sources， ecological corridors， ecological pinch points and obstacle points from 2001 to 2021 by minimum cumulative resistance model， circuit theory and gravity model， constructed a county level green space ecological network， analyzed its evolution process and causes， and proposed optimization measures. The results indicated that the area of ecological sources in Xianyou County increased from 301.88 km2 in 2001 to 319.20 km2 in 2021， primarily concentrated in the northern forest regions. The fragmentation of ecological sources led to an increase in the number of sources and ecological corridors. The area of ecological pinch point increased from 1618 km2 in 2001 to 1648 km2 in 2021， while the area of ecological obstacle point decreased from 2177 km2 to 1750 km2. The green space ecological network constructed in Xianyou County based on ecological importance and source evolution had a total core source area of 27423 km2， a total potential source area of 2918 km2， 39 ecological corridors， 27 ecological stepping stones， 33 pinch points and 30 obstacle points. |
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