基于城市功能分区的碳收支平衡时空分异研究  

Study on Spatial-Temporal Differentiation of Regional Carbon Balance Based on Urban Functional Zoning

作　　者：葛汝冰[1] 吝涛[1] 刘晓芳[1,2] 尹锴[3] 张国钦[1] 叶红[1] 李新虎[1] 

机构地区：[1]中国科学院城市环境研究所城市环境与健康重点实验室,厦门361021 [2]华侨大学建筑学院,厦门362021 [3]中国科学院遥感应用研究所,北京100101

出　　处：《气候变化研究进展》2016年第2期101-111,共11页Climate Change Research

基　　金：国家自然科学基金项目(41371540;41201598);高分辨率对地观测系统重大专项(30-Y30B13-9003-14/16);福建省自然科学基金(2015J05086);宁波市软科学研究计划项目(2013A10096;201401A1007007)

摘　　要：研究城市主导功能影响下区域碳平衡时空分异,有助于理解城市功能格局与碳循环过程之间的作用机制。本研究以厦门市6个区为例,采用各区历史统计数据以及卫星影像处理的土地利用数据,通过构建简化的区域碳收支计算模型,核算各行政区不同历史时期的碳平衡,结果表明:厦门市整体上呈现碳收支失衡逐渐加剧的趋势,2003年CO_2排放量是吸收量的1.91倍,2013年增长至7.44倍;各区碳代谢以及碳平衡表现出不同的时空分异特征。结合厦门市城市建设总体规划中制订的主导功能分类,阐明主导功能影响下时空分异的社会经济、自然景观等驱动因素对城市碳平衡时空变化的影响机制与过程。在此基础上针对各区不同的碳平衡状况,制订适应各自主导功能的减排以及碳补偿政策。研究有助于直接服务城市的规划和建设实践,从城市生态服务角度指导建设规划,合理城市功能分区。Studies on spatial-temporal differentiation of regional carbon imbalance based on urban functional zoning will be beneficial in understanding the mechanism of urban function pattern affecting urban compound ecosystem carbon cycle.Xiamen city,with its 6 administrative districts,was taken as a study case and statistical data and land-use data processed by satellite image were adopted.Carbon emissions and carbon sinks were accounted for each district in different historical periods by using simplified accounting models.The results showed aggravating imbalance trend in overall carbon budget of Xiamen city,in 2013 CO_2 emissions were 7.44 times more than CO_2 sequestration,compared to 1.91 times in 2003,and carbon imbalance condition distribution has spatial-temporal heterogeneity.Combined with the main regional functions of city development planning,we discuss the mechanism and process of social economic indicators and landscape,which are most influenced by the main functions,affecting the temporal and spatial change of regional carbon imbalance.We conclude that specific carbon abatement or carbon offsetting policies should be considered to address the regional main functions based on individual current carbon imbalance condition.This highlights the importance of urban planning in maintaining regional carbon balance.The aggravating climate change caused by urbanization will require reasonable urban functional zoning with the consideration of urban ecological services.

关 键 词：碳收支 碳平衡 城市功能 时空分异 厦门 

分 类 号：X321[环境科学与工程—环境工程]