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研究发现，水田甲烷释放率最高时达７１．ｇｍｇ／ｍ￣２·ｈ，而最低只有３．０ｍｇ／ｍ￣２·ｈ。平均释放率为１５．６ｍｇ／ｍ￣２·ｈ；水稻田甲烷释放率在一日之内的变化有一定的规律，一日内甲烷释放率的最大值出现在凌晨或夜晚，而在中午阳光最强烈时甲烷释放率最低。甲烷释放率的日变化同土壤温度的关系不大。稻田甲烷的排放率有明显的季节变化。在整个水稻生长期间，甲烷的释放率有三个明显的高甲烷排放期。温度对甲烷释放率季节变化有一定的影响。活性有机碳同甲烷的释放率之间有一定的相关关系。
The study found that paddy methane release rate of up to 71. gmg / m ~ 2 · h, while the lowest only 3.0mg / m ~ 2 · h. The average release rate of methane was 15.6mg / m ~ 2 · h. There was a certain rule that the methane release rate in paddy field changed within one day. The maximum methane release rate in one day appeared in the early morning or at night, Methane release rate is lowest when strong. The daily variation of methane release rate has little to do with soil temperature. There is a clear seasonal change in the methane emission rate in paddy fields. During the entire rice growth period, methane release rates have three distinct periods of high methane emissions. Temperature has a certain influence on the seasonal change of methane release rate. There is a certain correlation between active organic carbon and methane release rate.