摘要
基于化肥、农药、农膜等6种主要农业生产资料为碳源,运用IPCC提出的碳转化系数法测算了1985—2012年重庆市农业碳排放量,同时运用LMDI模型分析法对农业碳排放进行因素分解。结果表明:(1)从时间序列来看,1985—2012年重庆市农业碳排放总量呈现出"上升一平稳一上升"的变化特征;(2)从碳排放结构来看,各类型碳源对农业碳排放呈现出较大的差异,农业碳排放贡献大小依次为化肥>农业灌溉>农膜>农药>农用机械使用>翻耕,其中化肥和农业灌溉占碳排放总量的76.36%;(3)从因素分解结果来看,以1985年为基期,农业生产结构因子、效率因子及劳动力因子分别累计实现了3.06%、350.71%和115.76%的碳减排,农业经济因子却累计产生了620.91%的碳排放增量。针对农业碳排放特点,提出了大力发展新型农业投入品,大力发展循环农业,加快推进农业节能减排等建议。
Based on the chemical fertilizer, pesticide, agricultural film and other 6 major agricultural means of production as carbon source, carbon conversion coefficient method proposed by IPCC was used to measure agri- cultural carbon emissions of Chongqing in 1985--2012, at the same time, the factors decomposition of agricultural carbon emission was analyzed by LMDI model. The reslut showed that ： （ 1 ） From the view of time series, the car- bon emissions of Chongqing agricultural in 1985--2012 showed the characteristics of ＂rise-steady-rise＂ ; （2） from the view of carbon emissions structure, various types of Carbon source on agricultural Carbon emission showed great differences, the contribution of agricultural carbon emissions was fertilizer 〉 agricultural irrigation 〉 agricultural film 〉 agricultural pesticides 〉 agricultural machinery 〉 tillage, fertilizer and agricultural irrigation accounted for 76.36% of total carbon emissions; （3）From the view of decomposition results, taking the year 1985 as base period, agricultural production structure factors, efficiency factors and labor factors achieved a total carbon emissions of 3.06% ,350.71% and 115.76%, while agricultural economic factors produced a total car- bon emissions of 620.91%. According to the characteristics of agricultural carbon emission, the advices of devel- oping new agricultural inputs and circular agriculture vigorously, accelerating the promotion of agricultural energy saving and emission reduction were proposed.
出处
《上海农业学报》
CSCD
2015年第4期125-129,共5页
Acta Agriculturae Shanghai
基金
重庆市人文社会科学重点研究基地长江师范学院武陵山区研究中心2013年专项研究立项(WLYJ1302)
关键词
农业碳排放
LMDI模型
因素分解
岩溶山区
Agricultural carbon emission
LMDI model
Factor decompositon
Karst mountain area
