中国城市林业2025，Vol.23Issue(3)：73-81,9.DOI:10.12169/zgcsly.2025.01.26.0002
基于全生命周期的城市绿地碳库构建与碳汇量化
Construction of Urban Green Space Carbon Stocks Based on the Whole Life Cycle and Carbon Sink Quantification
摘要
Abstract
[Objective]To provide guidance for precise quantitative assessment of carbon sink of green spaces through the"plants-soil-water bodies-atmosphere"multi-element accounting of carbon sink and carbon storage in green spaces.[Method]Taking the green space in the western section of the Wei River Ecological Landscape Belt in Qinhan New Town as a study case,the paper develops a comprehensive method to quantify the benefits of carbon sink in urban green spaces by constructing a green space carbon stock to calculate its static carbon storage and conducting dynamic quantification of green space carbon sinks and carbon emissions and the simulation of carbon neutrality based on the whole life cycle method.[Result]The current carbon sink of the selected section is 181.68 t,while the carbon emission is 2 848.24 t,making it a carbon emitter.It will take 16 years to achieve carbon neutrality.The carbon storage of the carbon pool is 1 652.17 t.The carbon density is 12.79 kg·m-2,while the plant carbon pool has a higher carbon density than the surface soil organic carbon pool.The carbon densities of forest-type,shrub-type and ground-cover-type green spaces are 18.83 kg·m-2,7.18 kg·m-2 and 4.23 kg·m-2,respectively,and their carbon pool indices are 1.295,1.38 and 0.87,respectively.[Conclusion]The factors influencing the carbon sink of green spaces are vegetation,soil characteristics,and maintenance&management practices.Based on this,the strategies to enhance the carbon sink of urban green spaces,along with seven plant community models designed for high-carbon-sink green spaces are proposed,aiming to shorten the timeline of carbon neutrality by 5.13 years from both the enhancement of carbon sequestration and the reduction of emissions.关键词
城市绿地/碳库构建/全生命周期/碳汇/碳排Key words
urban green space/carbon pool construction/whole life cycle/carbon sink/carbon emission引用本文复制引用
王晶懋,齐鑫,刘晖,达良俊,徐冰洁,赵婧雅,刘雨萌..基于全生命周期的城市绿地碳库构建与碳汇量化[J].中国城市林业,2025,23(3):73-81,9.基金项目
国家自然科学基金(52394223) （52394223）
陕西省自然科学基金项目(2023-JC-QN-0525) （2023-JC-QN-0525）
陕西省科技厅青年项目(2024JC-YBQN-0602) （2024JC-YBQN-0602）
陕西省教育厅专项科研计划项目(23JK0507) （23JK0507）
西安建筑科技大学研究生教育综合改革研究与实践项目"风景园林博士专业学位研究生教育五体联动机制建设"(ZHGG202416) （ZHGG202416）
