Spatial-temporal patterns of carbon footprint of fertilizer application in China during 2008 to 2017
TIAN Pei-pei1,2, LU Hong-wei1, LI Dan3, YIN Chuang2, XIA Jun1,3
1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; 2. School of Renewable Energy, North China Electric Power University, Beijing 102206, China; 3. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China
Abstract：The carbon footprint (CF) of fertilizer application on the scale of prefecture-level regions in China were estimated, based on life cycle assessment (LCA) and agricultural statistical data, and the magnitude, components and spatial-temporal patterns of CF associated with fertilizer application were discussed. Results indicated that the CF showed a single peak in 2013 during 2008~2017, i.e., increase first and then decrease. The farm CF (FCF) was 1.97t CO2eq/hm2 in 2015, more than 50% of the level in developed countries. The use of nitrogen fertilizer contributed about 91% of the total CF, reflecting its key role for GHG emission control and mitigation. All regions with high CF and FCF were located in three major grain production areas in China, i.e., North China, Northeast China, and the Yangtze Plains. Improving their production efficiencies as well as developing intensified agriculture can contribute to GHG emission control. Areas with growing CF after 2013 were mainly located in Xinjiang, Yunnan, and Heilongjiang Provinces. Outputs of this study are expected to better understand the agricultural CF of China and subsequently assist in policy making related to GHG emission control.
田沛佩, 卢宏玮, 李丹, 殷闯, 夏军. 2008~2017年中国地级市化肥施用碳足迹的时空演变格局[J]. 中国环境科学, 2021, 41(2): 967-973.
TIAN Pei-pei, LU Hong-wei, LI Dan, YIN Chuang, XIA Jun. Spatial-temporal patterns of carbon footprint of fertilizer application in China during 2008 to 2017. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(2): 967-973.
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