文献类型： 外文期刊
作者： Sun, Jing 1 ; Yang, Lun 2 ; Wang, Xingao 1 ; Lun, Fei 3 ; Lu, Miao 1 ; Sun, Xiao 1 ; Yang, Peng 1 ; Wu, Wenbin 1 ; Liu, Jianguo 4 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, State Key Lab Efficient Utilizat Arid & Semiarid A, Beijing 100081, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
3.China Agr Univ, Coll Land Sci & Technol, Beijing 100107, Peoples R China
4.Michigan State Univ, Ctr Syst Integrat & Sustainabil, E Lansing, MI 48823 USA
关键词： Food security; Metacoupling; Sustainable development goals; Carbon footprint; Water footprint
期刊名称：RESOURCES CONSERVATION AND RECYCLING （ 影响因子：13.2； 五年影响因子：13.4 ）
ISSN： 0921-3449
年卷期： 2024 年 205 卷
页码：
收录情况： SCI
摘要： We assessed agricultural practices in China to identify workable solutions for sustainably feeding the Chinese population. We calculated the environmental costs of producing domestic rice, wheat, corn, soybeans, and imported soybeans. The environmental costs were enormous, and the food self-sufficiency and sufficiency (imported soybean included) rates were below 100 %. Subsequently, we assessed differences in environmental costs and crop yields between two main farming entities (small-holding and state-owned), effects of farm size, and uncertainties in soybean trade (China-US trade war and infrastructure improvement in Brazil). We presented scenario-based solutions that can reduce the carbon footprint, water footprint, and economic costs and increase both the food self-sufficiency and sufficiency rates above 100 %. Adopting the best-performing practices from both farming entities had the largest improvement effect. The individual solutions can improve China's United Nations Sustainable Development Goals ranking. Combined, they can act synergistically to navigate food crop production within a safe operating space.
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