基于全生命周期的城市绿地碳源/汇核算研究——以郑州龙湖外环为例  

Research on Carbon Source/Sink Accounting of Urban Green Space Based on the Whole Life Cycle:A Case Study Within the External Circle of Zhengzhou Longhu

作　　者：林奕成 易扬 张浪 武艳芳 张桂莲 胡传伟 徐自恒 LIN Yicheng;YI Yang;ZHANG Lang;WU Yanfang;ZHANG Guilian;HU Chuanwei;XU Ziheng(Shanghai Academy of Landscape Architecture Science and Planning,Key Laboratory of National Forestry and Grassland Administration on Ecological Landscaping of Challenging Urban Sites,National Innovation Alliance of National Forestry and Grassland Administration on Afforestation and Landscaping of Challenging Urban Sties,Shanghai Engineering Research Center of Landscape on Challenging Urban Sties,Shanghai,China,200232;Palm Ecological Town Development Co.,LTD.,Zhengzhou,Henan,China,450003)

机构地区：[1]上海市园林科学规划研究院,城市困难立地生态园林国家林业和草原局重点实验室,国家林业和草原局城市困难立地绿化造林国家创新联盟,上海市城市困难立地园林绿化技术工程中心,上海200232 [2]棕榈生态城镇发展股份有限公司,郑州450003

出　　处：《园林》2024年第8期140-146,共7页Landscape Architecture Academic Journal

基　　金：国家重点研发计划课题“城市绿地湿地碳汇监测与核算方法”(编号:2022YFC3802605);上海市科委青年科技英才扬帆计划“基于高光谱和激光雷达的城市绿地植被群落碳汇计量监测技术研究”(编号:22YF1444000);上海市科委软科学研究青年项目“‘双碳’背景下上海城市绿地碳汇功能评估体系研究”(编号:23692120300);上海市科委自然科学基金面上项目“城市绿地三维结构对夏季热岛效应的影响机制研究”(编号:23ZR1459700);上海市绿化和市容管理局项目“上海公园绿地植物群落碳汇评估与增汇关键技术研究”(编号:G22021);上海市科委社会发展科技攻关项目“超大城市上海公园城市构建关键技术研究与示范”(编号:23DZ1204400)。

摘　　要：随着全球气候变化和城市化的加速,城市绿地的碳源汇核算成为指导城市碳库合理建设和科学评估碳汇能力的重要工具。基于城市绿地全生命周期的碳源和碳汇量化方法,结合相应核算模型,以郑州龙湖外环为例,对其绿地范围内50年全生命周期的碳源和碳汇进行比较研究和预测。结果表明,研究区在建设初期存在碳源和碳汇不平衡的现象,碳源和碳汇量在全生命周期的第20年时才可达到平衡的结果,并在全生命周期的后30年呈现为正向的生态效益。其中,材料和维护阶段的碳源是研究区碳源的主要来源,而乔木和灌木在研究区中起到至关重要的碳汇作用。采用多种碳核算方法,评估和预测城市绿地的碳源汇状况,以期为城市绿地碳汇功能提升、城市“碳中和”目标的实现提供支撑。Research on carbon source and sink accounting of urban green spaces is benefi cial for guiding the rational construction of urban carbon reservoirs and scientifi c assessment of carbon sinks.Based on methods and accounting models for quantifying carbon sources and sinks throughout the entire lifecycle of urban green spaces,this study compares the carbon sources.It sinks over a 50-year lifecycle within the Longhu Outer Ring of Zhengzhou.The results show an imbalance between carbon sources and sinks in the initial stages of construction,with a balance achieved nearly 20 years into the lifecycle,followed by positive eco-logical benefi ts in the subsequent 30 years.During the lifecycle,the material and maintenance stages are the primary sources of carbon sources,while trees and shrubs play a crucial role as carbon sinks in the study area.This study adopts various carbon accounting methods to evaluate and predict the carbon source and sink status of urban green spaces to provide support for im-proving the carbon sink function of urban green spaces and achieving the goal of“carbon neutrality”in cities.

关 键 词：碳源 碳汇 核算方法 全生命周期 城市绿地 

分 类 号：TU986[建筑科学—城市规划与设计]