Carbon Footprint Analysis of Cotton Production in Hebei Province
Based on farmer's production survey data from Hebei Province,the carbon footprint of cotton production in Hebei Province was estimated using a life-cycle assessment method in the agricultural sector.The proportions of different agricultural inputs in the carbon footprint of cotton production was explored.In addition,the relationships between fertilizer and irrigation inputs and the cotton yield output was analyzed.The results were as follows:1) the carbon footprint per unit sown area,carbon footprint per unit yield,carbon footprint per unit biomass and carbon footprint per unit production value for cotton production in Hebei Province were 3272.71 kg·hm-2,1.04 kg·kg-1,0.40 kg·kg-1 and 0.34 kg· ￥ 1,respectively.The carbon footprint of cotton production was lower than that of winter wheat;2) the main components of the carbon footprint were fertilizer(34.53％),electricity for irrigation (25.98％) and plastic film (18.44％);and 3) in this study,25.63％ of a field exposed to excessive fertilizer and 21.11％ of a field exposed to excessive irrigation showed low yields.Thus,there were large energy savings and emission reduction potentials.Gradually expanding the cotton planting area and developing technology that limits water and fertilizer consumption,as well as eliminating plastic film during mulching,could help to mitigate greenhouse gas emissions from agricultural production of Hebei Province.
国家科技期刊平台
NSTL
万方数据
维普
