Carbon footprint of grain production in China

Abstract Due to the increasing environmental impact of food production, carbon footprint as an indicator can guide farmland management. This study established a method and estimated the carbon footprint of grain production in China based on life cycle analysis (LCA). The results showed that grain pr...

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Autores principales:	Dan Zhang, Jianbo Shen, Fusuo Zhang, Yu’e Li, Weifeng Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f008106758104ba09f2191ee89b493e6
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spelling	oai:doaj.org-article:f008106758104ba09f2191ee89b493e62021-12-02T11:40:51ZCarbon footprint of grain production in China10.1038/s41598-017-04182-x2045-2322https://doaj.org/article/f008106758104ba09f2191ee89b493e62017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04182-xhttps://doaj.org/toc/2045-2322Abstract Due to the increasing environmental impact of food production, carbon footprint as an indicator can guide farmland management. This study established a method and estimated the carbon footprint of grain production in China based on life cycle analysis (LCA). The results showed that grain production has a high carbon footprint in 2013, i.e., 4052 kg ce/ha or 0.48 kg ce/kg for maize, 5455 kg ce/ha or 0.75 kg ce/kg for wheat and 11881 kg ce/ha or 1.60 kg ce/kg for rice. These footprints are higher than that of other countries, such as the United States, Canada and India. The most important factors governing carbon emissions were the application of nitrogen fertiliser (8–49%), straw burning (0–70%), energy consumption by machinery (6–40%), energy consumption for irrigation (0–44%) and CH4 emissions from rice paddies (15–73%). The most important carbon sequestration factors included returning of crop straw (41–90%), chemical nitrogen fertiliser application (10–59%) and no-till farming practices (0–10%). Different factors dominated in different crop systems in different regions. To identity site-specific key factors and take countermeasures could significantly lower carbon footprint, e.g., ban straw burning in northeast and south China, stopping continuous flooding irrigation in wheat and rice production system.Dan ZhangJianbo ShenFusuo ZhangYu’e LiWeifeng ZhangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Dan Zhang Jianbo Shen Fusuo Zhang Yu’e Li Weifeng Zhang Carbon footprint of grain production in China
description	Abstract Due to the increasing environmental impact of food production, carbon footprint as an indicator can guide farmland management. This study established a method and estimated the carbon footprint of grain production in China based on life cycle analysis (LCA). The results showed that grain production has a high carbon footprint in 2013, i.e., 4052 kg ce/ha or 0.48 kg ce/kg for maize, 5455 kg ce/ha or 0.75 kg ce/kg for wheat and 11881 kg ce/ha or 1.60 kg ce/kg for rice. These footprints are higher than that of other countries, such as the United States, Canada and India. The most important factors governing carbon emissions were the application of nitrogen fertiliser (8–49%), straw burning (0–70%), energy consumption by machinery (6–40%), energy consumption for irrigation (0–44%) and CH4 emissions from rice paddies (15–73%). The most important carbon sequestration factors included returning of crop straw (41–90%), chemical nitrogen fertiliser application (10–59%) and no-till farming practices (0–10%). Different factors dominated in different crop systems in different regions. To identity site-specific key factors and take countermeasures could significantly lower carbon footprint, e.g., ban straw burning in northeast and south China, stopping continuous flooding irrigation in wheat and rice production system.
format	article
author	Dan Zhang Jianbo Shen Fusuo Zhang Yu’e Li Weifeng Zhang
author_facet	Dan Zhang Jianbo Shen Fusuo Zhang Yu’e Li Weifeng Zhang
author_sort	Dan Zhang
title	Carbon footprint of grain production in China
title_short	Carbon footprint of grain production in China
title_full	Carbon footprint of grain production in China
title_fullStr	Carbon footprint of grain production in China
title_full_unstemmed	Carbon footprint of grain production in China
title_sort	carbon footprint of grain production in china
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/f008106758104ba09f2191ee89b493e6
work_keys_str_mv	AT danzhang carbonfootprintofgrainproductioninchina AT jianboshen carbonfootprintofgrainproductioninchina AT fusuozhang carbonfootprintofgrainproductioninchina AT yueli carbonfootprintofgrainproductioninchina AT weifengzhang carbonfootprintofgrainproductioninchina
_version_	1718395556857905152

Carbon footprint of grain production in China

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