基于低碳理念的景观全生命周期碳源和碳汇量化探究——以天津仕林苑居住区为例

Research on Carbon Source and Carbon Sink of Landscape Life Cycle Based on Low Carbon Concept—A Case Study of Shilinyuan Residential Area in Tianjin

景观全生命周期包含景观材料的生产、建造、日常使用和维护及废弃拆除4个阶段。在提出景观全生命周期碳源和碳汇量化比较模型的基础上,以天津仕林苑居住区为例,对其景观50年全生命周期的碳源和碳汇进行比较研究,得到居住区景观在建设初期存在碳源和碳汇不平衡,碳源和碳汇量在将近30年时才可达到平衡的结果。其中,景观材料和维护阶段的碳源是居住区碳源的主要来源,因此,在居住区景观建设中,如何减少碳源量、增加碳汇量,是营建低碳景观的关键。

The whole life cycle of landscape architecture includes four stages:production stage,construction stage,daily use and maintenance stage and waste demolition stage.Based on the quantitative comparison model of carbon source and carbon sink in the life cycle of landscape,the paper makes a comparative study on carbon source and carbon sink in the whole life cycle of residential landscape for 50 years,taking the residential area of Shilinyuan in Tianjin as an example.The results show that there is an imbalance between carbon source and carbon sink in the early stage of the residential landscape construction,and the carbon source and carbon sink amount can reach the balance in nearly 30 years.The carbon source in landscape material phase and landscape maintenance stage is the main source of carbon source in residential area.Therefore,how to reduce the carbon source in landscape and increase carbon sequestration in residential landscape construction is the key to construct low-carbon landscape.