中国东北土壤甲烷散发量综述

为了加深对全球空气中甲烷含量的理解，甲烷散发量的个别源和空间变量做为影响大气的温室气体需要调查研究。将甲烷散发量在中国东北部的研究做为一个合作项目由日本长冈工业高等专门学校和黑龙江水利高等专科学校共同完成。考察全球的甲烷散发量，在考虑各国对此量的影响及一个甲烷散发源的基础上，把中国东北土壤做为大气甲烷的散发源，在中国东北土壤中的甲烷散发量占全区甲烷全部散发量的大部分，因为该处存在大面积的湿地和水田、本文指出需进一步加强土壤甲烷散发量的测定和计算工作。

Overview of Methane Emission from Soils in Northeastern Part of China

To allow increased understanding of the global budget of atmospheric Methane,individual sources and spatial variability of methane emissions require investigation as one ofgreenghouse gases warming the atmosphere. The study on the emission of methane flux innortheast China has proposed for a part of our joint research program,established by Nagaoka College of Technology and Heilongjiang Hydraulic College. We reviewed the globalmethane emissions,complied with a national contribution basis and with a methane sourcebasis,to address the regional characteristics of northeast China as sources of the atmospheric methane. The emission of methane from soils could occupy a large fraction of thewhole emission in northeast China because a large area of wetlands and rice paddy fieldsexisted in this area. Future works of measuring and analyzing the methane emission ratesfrom the soils are outlines in this paper.