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基于全生命周期的城市小尺度绿地碳平衡
王晶懋, 齐佳乐, 韩都, 罗宜帆
西安建筑科技大学
摘要:
小尺度绿地在城市绿地中分布广、数量多,在全球应对碳排放问题的大背景下对于达成“碳中和”目标具有重要价值。鉴于既有城市小尺度绿地低碳设计缺乏系统性的指导与流程,以景观碳排放和碳汇为切入点,对景观材料生产、景观建造、景观日常使用和景观维护管理全过程进行分析,将小尺度绿地在景观全生命周期中各个阶段的碳排放和碳汇过程进行量化计算比较,认为景观营建中要侧重高固碳地被植物模式的选取和低碳材料的运用,筛选出6种乡土高固碳地被植物群落配置模式,可用于小尺度绿地增加碳汇,减少景观维护管理中的碳排放。提出改善城市小尺度绿地碳平衡的设计及营建方法,总结针对城市小尺度绿地增加碳汇、减少碳排放的关键性策略,为绿色碳汇网络构建提供科学依据与实践指导。
关键词:  碳排放  碳汇  景观全生命周期  低碳景观设计  小尺度绿地  植物群落
DOI:10.14085/j.fjyl.2022.12.0100.06
分类号:TU986
基金项目:国家自然科学基金(编号 51908443);陕西省社会科学基金(编号 2022J033);西部绿色建筑国家重点实验室自主研究课题(编号 LSZZ202018)
Carbon Balance of Small-Scale Urban Green Space from the Perspective of Landscape Life Cycle
WANG Jingmao, QI Jiale, HAN Du, LUO Yifan
Xi’an University of Architecture and Technology
Abstract:
Ranking forefront among all types of urban green spaces in both distribution scope and quantity, small-scale green space plays an important role in achieving carbon neutrality in the context of the global response to carbon emission. In view of the lack of systematic guidance and procedures for the current low-carbon design of urban small-scale green space, this research, with landscape carbon emissions and carbon sinks as the entry point, conducts a whole-process analysis of landscape involving landscape material production, landscape construction, landscape daily use, and landscape maintenance and management. Additionally, the research conducts a quantitative calculation and comparison of the carbon emission and carbon sink process of small-scale green space at each stage within landscape life cycle. On this basis, the research proposes that landscape construction should focus on the selection of design modes for ground-cover plants with high carbon sequestration capacity and the use of low-carbon materials, and accordingly screens 6 localized configuration modes for ground-cover plant communities with high carbon sequestration capacity, to help increase carbon sinks, reduce carbon emissions from landscape maintenance and management. Finally, the research puts forward the methods for carbon balance improvement and construction of urban small-scale green space, and summarizes the key strategies for increasing carbon sinks and reducing carbon emissions of urban small-scale green space, in hope of providing scientific basis and practical guidance for the construction of a green carbon sink network.
Key words:  carbon emission  carbon sink  landscape life cycle  low-carbon landscape design  small-scale green space  plant community
引用本文:王晶懋,齐佳乐,韩都,罗宜帆.基于全生命周期的城市小尺度绿地碳平衡[J].风景园林,2022,29(12):100-105.
WANG Jingmao,QI Jiale,HAN Du,LUO Yifan.Carbon Balance of Small-Scale Urban Green Space from the Perspective of Landscape Life Cycle[J].Landscape Architecture Journal, 2022, 29(12):100-105.