城市住宅区碳源汇的空间分异规律、影响机制及管理对策——以关中地区为例  

Spatial distribution,mechanism and management strategies of carbon source and sink of urban residential area:A case in Guanzhong Region,China

作　　者：魏书威[1,2] 魏书精[3] 王雅梅[2] 文正敏[3] 

机构地区：[1]西安建筑科技大学建筑学院,西安710055 [2]兰州理工大学设计艺术学院,兰州730050 [3]桂林理工大学土木与建筑工程学院,广西桂林541004

出　　处：《应用生态学报》2014年第3期863-874,共12页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金项目(51208244);国家重点基础研究发展计划项目(2011CB403203);国家科技支撑计划项目(2011BAD37B0104);林业公益性行业科研专项(201004003-6);科研启动项目(002401003421);霍英东基金基础项目(131029)资助

摘　　要：城市住宅区作为城市生态系统重要的组成单元，其碳源汇对城市生态系统碳循环和碳平衡产生重要影响．本文采取案例分析、文献查阅、问卷调查等多种方法，获取关中地区城市住宅区CO2排放（碳源）与吸收（碳汇）数据，并分析其来源及空间分布情况．结果表明：关中地区住宅区建材生产和改造更新过程CO2排放量最大；且建材类的CO2排放量远大于日常生活资料，仅有40％～52％碳排放发生在住宅区，其余发生在外围，呈现出碳源距离的空间波动性、成分的空间差异性以及圈层与分区分布．仅有9％-17％的碳排放可在住宅区内被吸收，外部空间被动承担大量碳汇功能，并显现为分层递变和空间分异．最后提出了碳源、碳汇空间管理技术和干预对策．Urban residential area is an important component of urban ecosystem. Its carbon process will have an important impact on carbon cycle and carbon balance of urban ecosystem. In this paper, the data of CO2 emission and absorption in Guanzhong area were collected by case ana-lysis, literature consulting and questionnaires and surveys to analyze its sources and the spatial distribution characteristics. The results showed that building materials production and renovation of residential area had the most CO2 emission, and building materials had much larger CO2 emission compared with everyday means of subsistence. Only 40% -52% of total carbon emission occurred within the residential area, while the rest was in the peripheral area. The spatial distance variation of carbon source, the spatial differences of carbon component and the spatial distribution by spheres and zon- ing were observed. As for CO2 absorption, only 9%-17% CO2 emission could be absorbed in the residential area, and the others had to be imposed to the outer space, showing hierarchical grading rules and spatial variation. Some space management techniques and intervention measures were put forward.

关 键 词：城市住宅区 城市生态系统 碳源汇 空间规律 碳管理 

分 类 号：TU984.115[建筑科学—城市规划与设计] X511[环境科学与工程—环境工程]