农业资源与环境学报2017，Vol.34Issue(5)：473-482,10.DOI:10.13254/j.jare.2017.0180
基于生命周期评估的冬小麦-夏玉米种植系统碳足迹核算——以山东省高密地区为例
Life Cycle Assessment on Carbon Footprint of Winter Wheat-Summer Maize Cropping System Based on Survey Data of Gaomi in Shandong Province, China
摘要
Abstract
Grain production can generate huge amount of greenhouse gases through raw material production and energy comsumption, nitrogen fertilizer amendment and farming machinery operation. Based questionnaire survey of raw material inputs and management of wheat-maize cropping system in Gaomi, Shandong Province, carbon footprint of grain production was calculated using life cycle assessment methodology. Carbon footprint per unit area of wheat, maize, and winter wheat-summer maize cropping system were 5183.33, 3778.09 kg CO2-eq·hm-2 and 8961.42 kg CO2-eq·hm-2, carbon footprint per unit grain yield were 0.69, 0.40 kg CO2-eq·kg-1 and 0.53 kg CO2-eq· kg-1, carbon footprint per unit net present value were 1.82, 0.40 kg CO2-eq·yuan-1 and 0.44 kg CO2-eq·yuan-1, respectively. Greenhouse gas (GHG) emission of winter wheat-summer maize cropping system mainly came from nitrogen fertilizer production (48.30％) and nitrogen fertilizer application(12.04％), irrigation electricity consumption (12.94％) and machinery oil consumption(11.20％). Optimizing the application of fertilizer, reducing the amount of nitrogen fertilizer and saving water irrigation were important ways to realize the clean production.关键词
冬小麦-夏玉米/碳足迹/生命周期评价/减缓气候变化Key words
winter wheat-summer maize/carbon footprint/life cycle assessment/climate change mitigation分类
农业科技引用本文复制引用
朱永昶,李玉娥,姜德锋,邹晓霞..基于生命周期评估的冬小麦-夏玉米种植系统碳足迹核算——以山东省高密地区为例[J].农业资源与环境学报,2017,34(5):473-482,10.基金项目
农业源温室气体排放峰值、减排成本与潜力研究(2013087) （2013087）
青岛农业大学高层次人才启动基金(631409) （631409）
