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为优化国土空间格局中的碳汇功能，实现生态系统碳汇能力的协同增效，研究提出构建以“源地-廊道”为核心的碳汇网络，并分析其空间组织机理与关键影响因素。在此基础上，运用图论与地理探测方法识别关键节点与脆弱区域，提出空间分区管控、节点功能提升及生态廊道修复等干预策略，为碳中和目标下的空间规划与政策制定提供科学支撑。

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