As an important by-product and the source of organic fertilizer of agricultural production,straw can be processed into or-ganic fertilizer and reasonably replace the chemical fertilizer,which was an important method of reducing the application rate of chemical fertilize and increasing its efficiency in agricultural production.This study focused on the product characteristics of straw or-ganic fertilizer and was based on international general methodology.The emission factor method was adopted and the carbon emission accounting method for the whole life cycle of straw organic fertilizer was scientifically established.An agriculture demonstration dis-trict was taken as a demonstration in Tianjin,the carbon emission during the whole life cycle of vegetable straw organic fertilizer in the region was calculated,and the emission reduction measures were proposed.The results showed that in the whole life cycle of straw or-ganic fertilizer production and resource utilization,the carbon emissions of CH4 and N2O generated by aerobic fermentation of organic fertilizer accounted for a large proportion.Technical means such as improving the structure of aerobic fermentation equipment,opti-mizing the equipment selection of organic fertilizer production lines,improving the intelligence level of complete sets of equipment,nearby processing and utilization,and adopting energy-saving transport vehicles should be adopted to effectively reduce the carbon e-missions of straw organic fertilizer throughout its life cycle.The research results provide technical support for accurately grasping agri-cultural carbon emissions and evaluating the effect of agricultural emission reduction measures.
关键词
秸秆有机肥/全生命周期/碳排放/碳核算/排放因子法
Key words
straw organic fertilizer/whole life cycle/carbon emission/carbon accounting/emission factor method
维普
万方数据