摘要
由于城市化进程的加速,与人类活动密切相关的城市土壤成为陆地生态系统的重要组成部分。城市土壤碳循环作为城市土壤的重要过程,逐渐成为探讨城市生态系统与全球变化关系的重要介质。文章综述了城市土壤碳储量特征、微生物对城市土壤碳循环的影响及城市土壤的碳管理。概言之,城市土壤碳储量分布具有空间和时间的差异性;自然因素与人为因素均对城市土壤碳储量有重要影响;城市诸多代谢过程相互作用可以通过影响土壤微生物进而影响土壤有机碳的转化过程。同时,作为城市生态系统的重要组成部分,城市土壤的碳管理有助于提高城市土壤的生态服务功能,也有利于城市生态系统的可持续发展。文章分析认为,城市土壤碳循环与城市生态系统其他功能的相互作用将是今后研究的主要方向。
In companying with rapid urbanization, urban soil system which is closely related to human activities becomes of great importance in land ecological system. As a result, urban soil carbon cycle has been playing a never more significant role in discover- ing the relationship between urban ecological system and global changes. This paper summarized the research advancements on the carbon storage characteristics, the carbon cycle and the carbon management of urban soil system. Generally, the distribution of urban soil carbon storage varied across time and space, both natural processes and anthropogenic activities have led to the changes in urban soil carbon storage. The urban soil organic carbon cycle can be greatly altered due to the impact of urban metabolism on urban mi- croorganism characteristics. Moreover, as a vital component of urban ecosystem, urban soil carbon management will improve urban ecological services. In this paper, it is also suggested that the interactions between soil carbon cycle and other urban eco-system func- tions, such as the coupling of urban carbon and nitrogen cycles, are the future research directions.
出处
《生态环境学报》
CSCD
北大核心
2009年第3期1134-1138,共5页
Ecology and Environmental Sciences
基金
中国科学院知识创新工程重要方向项目(KZCX2-YW-BR-03)
中国科学院知识创新工程重要方向项目(KZCX2-YW-450-40)
中国科学院知识创新工程青年人才领域前沿项目(0714151d40)
关键词
城市
土壤
碳循环
研究进展
urbanization
soil
carbon cycle
research progress
