Study on Methane Emission Factor of Paddy Fields in Hubei Province

Abstract

Methane is one of the most important greenhouse gases, contributing about 15% of global warming, and agricultural activity is the largest source of methane, accounting for 50.15% of the country’s total emissions. Accurate estimation of methane emission factors in paddy fields is of great significance to the statistics of agricultural greenhouse gas emissions and the implementation of relevant emission reduction measures. According to the method recommended by IPCC, the average methane emission factor of single season rice is 470 kg/hm2, the average emission factor of fresh rice is 330 kg/hm2, the average methane emission from late rice is Factor of 220 kg/hm2.The factors that affect the methane emission in paddy fields in Hubei Province are mainly water management measures and soil environment.