天津城市系统碳通量与碳平衡测度研究

发布时间：2018-01-19 10:19

本文关键词： 碳通量碳平衡碳储量城市系统天津市　出处：《干旱区资源与环境》2016年11期 　论文类型：期刊论文

【摘要】：城市是碳排放的重要空间,低碳减排是通过调控进入到城市系统内部的物质代谢路径来降低碳通量。从城市经济-环境的复合系统均衡的视角,将碳排放嵌入到城市系统的代谢分析体系之内,以天津市为例,动态测度碳排放的通量代谢特征与碳平衡的变化规律。研究表明:近十年来天津市碳储量总体呈现逐年递增趋势,自然碳库增长速度低于人为碳库增长速度;城市系统碳输出总体高于碳输入,通量水平变化明显,且总体处于不平衡状态、碳补偿能力较差。其中,化石能源消费是影响碳通量变化的主要因素。在此基础上,提出城市系统碳减排的关键环节。
[Abstract]:City is an important space for carbon emissions, and low carbon emission reduction is to reduce carbon flux by regulating the path of substance metabolism into the urban system. From the perspective of the urban economy-environment complex system equilibrium. Carbon emissions are embedded into the metabolic analysis system of urban systems, taking Tianjin as an example. The characteristics of flux metabolism and the change of carbon balance in dynamic measurement of carbon emissions. The results show that the total carbon storage in Tianjin is increasing year by year, and the natural carbon pool growth rate is lower than the artificial carbon pool growth rate. The carbon output of urban system is higher than that of carbon input, the flux level changes obviously, and the overall state is unbalanced, and the ability of carbon compensation is poor. The consumption of fossil energy is the main factor affecting the change of carbon fluxes. On this basis, the key link of carbon emission reduction in urban system is put forward.
【作者单位】：天津城建大学经济与管理学院;南开大学循环经济研究中心;
【基金】：国家自然科学基金项目(编号:71303170) 天津市高等学校人文社科项目(编号:20132152)资助
【分类号】：X21
【正文快照】： 城市是碳排放的重要空间,我国城市化和工业化进程加快在一定程度上会扰动城市生态系统的碳循环,对城市系统碳减排目标的实现产生一定影响。实践中一系列减少碳源、增加碳汇的做法与途径,从根本上来说,都是通过调控进入到城市系统内部的物质代谢路径来降低碳通量,进而实现低碳

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