我国湿地碳循环的研究进展

湿地生态系统的碳循环正成为全球变化与陆地生态系统碳循环研究中的一大热点,在稳定全球气候变化中占有重要地位,其重要性主要表现在湿地土壤是陆地重要的有机碳库,土壤碳密度高,能够相对长期地储存碳,是多种温室气体的源和汇。目前湿地碳循环的研究主要集中在碳循环的影响因素方面,对我国湿地土壤有机碳储存的变化及其空间分布规律的特点研究较少。本文通过文献综述,研究我国不同气候区湿地土壤有机碳的储存变化及空间分布规律,对于了解湿地土壤有机碳的储存特点及其与陆地生态系统碳循环的关系,评价和保护湿地生态系统都具有重要的科学意义。

Progress of Research on Carbon Cycle of Wetlands in China

One of the highlights in global change and terrestrical ecosystem research is on carbon cycle in wetland ecosystem.Wetland soil is the source and sink of various green gas and important pool of organic carbon with high carbon density and long-term of storage.At present,the studies of wetland carbon cycle are mainly concentrated on influence factors of carbon cycle,the studies of changes of soil organic carbon stock and spatial distribution of wetland soil organic carbon are less.By the review,this paper study the changes and spatial distribution of wetland soil organic carbon in different wetlands,it is important for us to understand the characteristics of wetland soil organic carbon and the relation with land ecological system carbon cycle,to provide scientific basis for evaluation and protection wetland ecosystems