Excessive synthetic fertilizers elevate greenhouse gas emissions of smallholder-scale staple grain production in China
文献类型：期刊论文
| 作者 | Xu, Yan6; Xu, Xiangbo4,5; Li, Jing5; Guo, Xiaoxia2,3; Gong, Huarui; Ouyang, Zhu; Zhang, Linxiu4,5; Mathijs, Erik1 |
| 刊名 | JOURNAL OF CLEANER PRODUCTION
 |
| 出版日期 | 2023-12-10 |
| 卷号 | 430页码:139720 |
| 关键词 | Food system Greenhouse gas emissions Smallholder farmers Life cycle assessment Synthetic fertilizers |
| DOI | 10.1016/j.jclepro.2023.139720 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Smallholder farmers produce one-third of the world's food and over 80% of China's; therefore, they must be at the forefront of developing a sustainable food system. Greenhouse gas (GHG) emissions from these farms cannot be ignored. In this study, we created an agricultural environmental impact evaluation framework for China based on a localized database through an extensive survey. The survey was based on face-to-face interviews by 120 investigators with 1015 smallholders in 100 villages within Chinese major agricultural regions. The GHG emissions of each smallholder farmer's staple grain production was assessed on a case-by-case basis. Structural equation models were used to analyze the influence paths of production behavior. The results showed that GHG emissions from smallholder grain production exceeded average global levels. Despite some regional differences, synthetic fertilizers were the main source of GHG emissions from all farm inputs. Increased farm size can reduce nitrogen fertilizer use. The GHG emissions can be reduced by 203.59-279.90 Tg CO2eq, and profits would increase by 62.05-92.42 billion CNY in China, when all smallholders are managed in the same way as the top 25% or 10% of outstanding producers without applying higher nitrogen fertilizer application than the national recommendation. It is urgent and necessary for smallholders to change production practices to reduce their reliance on fertilizers to achieve climate goals. |
| WOS关键词 | CARBON FOOTPRINT ; CROP PRODUCTION ; USE EFFICIENCY |
| WOS研究方向 | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:001119381700001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/201000]  |
| 专题 | 禹城站农业生态系统研究中心_外文论文 |
| 作者单位 | 1.Wageningen Univ, Environm Policy Grp, Hollandseweg 1, NL-6706 KN Wageningen, Netherlands 2.China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China 3.United Nations Environm Programme Int Ecosyst Mana, Beijing 100101, Peoples R China 4.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Yellow River Delta Modern Agr Engn Lab, Beijing 100101, Peoples R China 7.Katholieke Univ Leuven, Dept Earth & Environm Sci, B-3001 Leuven, Belgium |
| 推荐引用方式 GB/T 7714 | Xu, Yan,Xu, Xiangbo,Li, Jing,et al. Excessive synthetic fertilizers elevate greenhouse gas emissions of smallholder-scale staple grain production in China[J]. JOURNAL OF CLEANER PRODUCTION,2023,430:139720. |
| APA | Xu, Yan.,Xu, Xiangbo.,Li, Jing.,Guo, Xiaoxia.,Gong, Huarui.,...&Mathijs, Erik.(2023).Excessive synthetic fertilizers elevate greenhouse gas emissions of smallholder-scale staple grain production in China.JOURNAL OF CLEANER PRODUCTION,430,139720. |
| MLA | Xu, Yan,et al."Excessive synthetic fertilizers elevate greenhouse gas emissions of smallholder-scale staple grain production in China".JOURNAL OF CLEANER PRODUCTION 430(2023):139720. |
入库方式： OAI收割
来源：地理科学与资源研究所
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