释放绿色基础设施的减碳潜力:来自中国海绵城市计划的证据
Hua Chai1,2, Changqing Xu3, Siyuan Peng1,2
1State Key Laboratory of Regional and Urban Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Environmental science & technology
|January 26, 2026
概括
绿色基础设施 (GI) 将城市地区转变为碳汇,但好处因类型和地区而异. 这项研究为可持续城市设计提供了一个框架,以最大限度地减少碳排放并实现碳中和.
科学领域:
- 环境科学 环境科学
- 城市规划 城市规划
- 气候变化缓解缓解 气候变化缓解
背景情况:
- 全球关注绿色基础设施 (GI) 气候和城市可持续性.
- 由于数据/方法差距,对地理标志的净碳效益和影响因素的理解有限.
研究的目的:
- 在中国的海绵城市进行GI的多规模生命周期碳核算.
- 在基础设施和项目规模上确定影响GI碳效益的因素.
- 建立一个框架,将碳排放与城市基础设施增长脱.
主要方法:
- 生命周期碳核算适用于15个海绵城市的679个工程案例.
- 在基础设施,项目和区域层面进行多层面分析.
- 生命周期评估与多目标优化 (NSGA-II) 的整合.
主要成果:
- "海绵改造"将城市表面从净碳来源转移到碳汇.
- 根据GI类型 (材料,运营效率) 和配置,碳效益差异很大.
- 区域碳回报期从7.5年到28.6年不等;湿地区的净收益更高.
- NSGA-II偏爱绿色屋顶和沉没的绿色空间,以节省成本,有效地减少排放,污染和碳排放.
结论:
- 地理标识提供了碳净效益,改变了城市景观.
- 优化GI需要考虑基础设施配置,区域气候和材料选择.
- 未来的地理标志必须采用可持续的,有弹性的途径,在气候变化下获得稳定的碳效益.
- 整合LCA和优化的新型框架有助于碳中和的城市设计.
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