土壤有机碳（SOC）是全球碳循环的重要组成部分，它具有直接影响全球碳平衡。
Soil organic carbon (SOC) is an important component of the global carbon cycle, and it has direct effects on the global carbon balance.
目前中国森林覆盖率为1392%，到本世纪末全国森林覆盖率将达到15%，对全球碳平衡具有重要作用。
At present, the rate of forest cover in China is 13 92% and it will be 15% at the end of twentieth century.
北方森林因其面积大、土壤碳储量高以及对全球暖化响应敏感而在全球碳平衡和气候系统中起着至关重要的作用。
The boreal forest plays a crucial role in the global carbon budget and climatic system because of its large area, great soil carbon storage, and sensitive responses to the global warming.
全球碳循环研究中发现，目前已知碳源与碳汇不能达到平衡，存在一个很大的碳失汇。
It is found that there is a large missing carbon sink between available carbon source and sink by studies of global carbon cycle.
CO2排放量的增加将改变全球生态系统碳平衡。植物对CO2浓度增加的响应是个重要研究课题。
The elevated CO2 could change the global carbon balance, it is essential to study the response of vegetation to the elevated CO2 concentration.
湿地土壤碳的循环对全球大气碳的收支平衡以及全球气候变化可能产生重大影响。
Soil carbon cycling in wetlands largely affected global carbon cycling and also possibly global climatic changes.
森林生态系统在全球碳循环与平衡中具有极为重要的和不可替代的地位和作用，随着《京都议定书》正式生效，森林碳汇问题已经越来越受到世界各国的重视。
Forest ecology system is important in the global carbon cycle and balance. Every countries attach great importance on forest carbon sink with the formal effective of Kyoto protocol.
森林生态系统在全球碳循环与平衡中具有极为重要的和不可替代的地位和作用，随着《京都议定书》正式生效，森林碳汇问题已经越来越受到世界各国的重视。
Forest ecology system is important in the global carbon cycle and balance. Every countries attach great importance on forest carbon sink with the formal effective of Kyoto protocol.
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