平衡综合绿色-灰色基础设施塑造了乡镇集群中的碳排放
Zhuo-Yang Sun1, Xiaoqing Zhu2,3
1College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310058, P.R. China.
iScience
|December 16, 2025
概括
综合绿色-灰色基础设施模式显著影响碳排放. 密集的灰色基础设施增加了排放,而绿色覆盖面只有在形成大型生态核心时才能减轻它们,指导低碳农村规划.
科学领域:
- 环境科学 环境科学
- 城市规划 城市规划
- 气候变化研究 气候变化研究
背景情况:
- 快速的城市化和建筑土地的扩张破坏了自然的碳动态,加剧了气候不稳定.
- 现有的研究往往单独分析绿色和灰色基础设施,忽视了局部变化和碳排放的综合影响.
- 了解绿色和灰色基础设施之间的相互作用对于有效的气候变化缓解战略至关重要.
研究的目的:
- 调查综合绿色-灰色基础设施土地覆盖模式 (IGGI-LCPs) 如何影响村镇集群层面的净碳排放强度 (NCEI).
- 开发IGGI-LCP的量化系统和双碳会计框架来分析这些关系.
- 确定农村景观中碳汇,来源和平衡配置的关键驱动因素和值.
主要方法:
- 在中国江省的八个代表性集群 (74个村庄) 中,利用村镇集群作为最低规划单位.
- 开发了一个综合绿色-灰色基础设施土地覆盖模式 (IGGI-LCPs) 量化系统和双碳核算框架.
- 使用地理加权回归 (GWR) 和多尺度地理加权回归 (MGWR) 进行空间分析,以及用于配置评估的值分析.
主要成果:
- 密集的灰色基础设施持续增加碳排放,而绿色覆盖面只有在形成大量生态核心时才能有效减轻排放.
- 国内生产总值 (GDP) 密度是排放的直接驱动因素,而人口密度则表现出间接和取决于环境的影响.
- 碳汇 (NDGG ≤ -0.20),碳源 (NDGG ≥ +0.20) 和平衡配置 (-0.20 ≤ NDGG ≤ +0.20) 的确定的值是基于绿色与灰色的比率.
结论:
- 综合绿色-灰色基础设施规划对于管理农村转型中的碳排放至关重要.
- 考虑到基础设施模式和社会经济因素的不同影响,需要制定特定于区域的适应性战略.
- 这些发现为优化土地利用规划提供了定量基础,以实现低碳发展目标.
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