黑龙江省农业温室气体排放量的估算研究及低碳农业发展建议

Study on Estimation of Agricultural Greenhouse Gase Emission and Suggestions on Agricultural Development in Heilongjiang Province

农业生产过程产生的温室气体在全球温室气体排放总量中占有较大比例,黑龙江省作为中国重要的农业大省,其农业温室气体排放的估算分析,对实现农业低碳减排具有重要意义。基于2005-2015年黑龙江农业生产数据,估算了农业生产过程中主要排放源CH_4和N_2O排放量,并提出了低碳农业发展的规划建议。结果表明:2015年,黑龙江省农业温室气体排放总量已上升至117.845万t,其中养殖业温室气体排放总量达51.967万t,主要来自反刍畜禽肠胃道内发酵CH_4排放,以及畜禽粪便管理过程CH_4和N_2O的排放,分别达到了48.527万、2.058万和1.382万t;种植业温室气体排放量达65.878万t,主要来自水稻种植CH_4排放,以及农业种植土壤本底和施肥N_2O的排放,分别达到了61.949万、2.764万和1.165万t。

The greenhouse gases form agriculture production process accounts for a relatively large portion of the world’s total emission.Heilongjiang is an important agricultural province in China.Estimation and analysis on agricultural greenhouse gases have great significance for low-carbon agriculture.Based on the data of agricultural production in Heilongjiang form2005to2015,the main emission sources CH4and N2O emissions in agricultural production process were estimated,and the suggestions on low-carbon agriculture were put forward.The results showed that in2015,Heilongjiang province agricultural greenhouse gas emissions had increased to1.17845×106tons,including5.1967×105tons greenhouse gases from livestock which mainly CH4from gastrointestinal fermentation of ruminants,and the livestock and poultry manure management process of CH4and N2O,respectively,4.8527×105tons,2.0580×104tons and1.3820×104tons;total emission of crop-plantation greenhouse gases in Heilongjiang province attained to6.5878×105tons,including6.1949×105tons CH4from rice planting,2.764×104tons CH4from blank farming soil and1.165×104tons N2O from fertilization.