摘要
城市绿地作为城市生态系统重要的组成部分,它既是城市碳氮元素重要的储存库,也是温室气体不容忽视的排放源。城市绿地土壤温室气体通量除受原自然条件影响外,更多的受城市人为活动的影响。在自然因素和人为活动干扰的相互作用下,城市绿地碳氮库和碳氮流具有复杂性和多变性。因此,在综述城市绿地土壤温室气体通量研究进展的基础上,探讨了人为活动对城市绿地土壤温室气体通量的影响,并从城市绿地土壤温室气体通量变化的时空差异性、人为干扰对城市绿地土壤温室气体通量的直接和间接影响因子以及科学合理地规划城市绿地景观植被3个方面提出了研究展望。
As the important part of urban ecosystem,urban green spaces are significant repositories for urban carbon and nitrogen element,and also the emission sources of greenhouse gases. Human activities have played a stronger impact than nature conditions on the emissions / absorption quantity of soil greenhouse gases. Under the interaction between natural factors and anthropogenic interferences,carbon-nitrogen pool flow of urban green spaces become complicated and varied. Therefore,the research progress of greenhouse gas flux of soil green-house gases in urban green spaces were summarized,and then the impact of urban human activities on greenhouse gas emissions / absorption was explored. The changes of greenhouse gas emissions / absorption in temporal and spatial difference,the direct and indirect effects of human disturbance factors as well as planning urban green spaces landscape vegetation scientifically and rationally were proposed as the research prospects.
出处
《安徽农业科学》
CAS
2015年第4期266-270,共5页
Journal of Anhui Agricultural Sciences
基金
国家自然科学基金项目(41301058
41201601)
广东省自然科学基金项目(S2013040011866)
广东省低碳技术创新与示范重大科技专项(2012A010800011)
关键词
土壤
城市化
城市绿地
温室气体
人为干扰
oil
Urbanization
Urban green spaces
Greenhouse gas
Anthropogenic interference
