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  2. 烟台海岸带研究所
  3. 中国科学院烟台海岸带研究所
  4. 中科院海岸带环境过程与生态修复重点实验室
Increasing food and feed self-sufficiency and avoiding manure N surplus in eastern regions of China through a spatial crop-livestock optimisation model

文献类型：期刊论文

作者Li, Yang2,3,4,6; Shi, Yong1; Deng, Xiangzheng5; Sun, Zhigang2,6,7,8; Accatino, Francesco3
刊名AGRICULTURAL SYSTEMS
出版日期2024-05-01
卷号217页码:15
关键词Food and feed self-sufficiency Manure N surplus Transportation Soybean Optimisation
ISSN号0308-521X
DOI10.1016/j.agsy.2024.103911
通讯作者Sun, Zhigang(sun.zhigang@igsnrr.ac.cn) ; Accatino, Francesco(francesco.accatino@inrae.fr)
英文摘要CONTEXT: As the largest emerging economy globally, China is facing crop-livestock disconnection, which causes unnecessary synthetic fertiliser use, local food and feed unsatisfied demand, and manure nitrogen (N) surplus. OBJECTIVE: We investigated how crop-livestock regional integration combined with inter-regional transportation of food, feed, and manure, can contribute to food self-sufficiency of easter China (whole and regional level) while avoiding manure N excess. We also investigated how this could increase the local soybean production without harming the self-sufficiency of other food commodities. METHODS: We proposed an optimisation model of integrated crop-livestock production in eastern China, including the production of food, feed, and livestock manure N in each region and the demand for food (according to healthy diet recommendations), feed and manure N. We optimised the supplier cost-benefit balance considering food and feed production, domestic transportation, and foreign trade, taking food and feed demand satisfaction and manure N surplus avoidance as constraints. This optimisation exercise was performed under different scenarios: optimisation without soybean subsidies (scenario O), optimisation with increasing soybean subsidies (scenario OS+). The two scenarios were compared with the baseline scenario B (non-optimised without soybean subsidies) using balance indices (BI, the gap between production and demand divided by demand) of food, feed, and manure N and transportation indices. RESULTS AND CONCLUSIONS: Results showed that, for the whole of eastern China, BI were positive for cereals (1.523), vegetables (2.789), meat (0.002), eggs (0.002), milk (0.102), and maize (0.244), and negative for manure N (-0.016) in scenario O. This indicated that most of the food and feed items except soybean were selfsufficient and manure N surplus was avoided after optimisation. Some regions lowered their self-sufficiency for some commodities. As soybean subsidies increased from 0 Yuan center dot ton-1 to 6000 Yuan center dot ton- 1, the BI of soybeans increased by 66.37%. SIGNIFICANCE: Our results suggested that crop and livestock can be integrated in China for an improved level of food self-sufficiency and manure N surplus avoidance. However, regional self-sufficiency could not be achieved in all regions for all items, and transportation is necessary. In particular, three strategies seem relevant for policymaking: (i) decreasing livestock quantity, for strengthening feed self-sufficiency and avoiding manure N surplus; (ii) increasing soybean production through subsidies; (iii) reducing regional -level self-sufficiency and increasing the transportation for meat and eggs, which would avoid manure N surplus in densely populated regions, while decreasing the maize transportation.
WOS关键词YIELD
WOS研究方向Agriculture
语种英语
WOS记录号WOS:001216828300001
资助机构Key Program of the Chinese Academy of Sciences ; Yellow River Delta Scholars Program ; ANR under the Investissements d'avenir programme
源URL[http://ir.yic.ac.cn/handle/133337/36065]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_近岸生态与环境实验室
通讯作者Sun, Zhigang; Accatino, Francesco
作者单位1.China Univ Geosci, Sch Econ & Management, Wuhan 430074, Peoples R China
2.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
3.Univ Paris Saclay, UMR, AgroParisTech, SADAPT,INRAE, F-91120 Palaiseau, France
4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
5.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
6.Zhongke Shandong Dongying Inst Geog, Dongying 257509, Peoples R China
7.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, CAS Engn Lab Yellow River Delta Modern Agr, Beijing 100101, Peoples R China
8.Univ Chinese Acad Sci, Coll Resource & Environm, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Li, Yang,Shi, Yong,Deng, Xiangzheng,et al. Increasing food and feed self-sufficiency and avoiding manure N surplus in eastern regions of China through a spatial crop-livestock optimisation model[J]. AGRICULTURAL SYSTEMS,2024,217:15.
APA Li, Yang,Shi, Yong,Deng, Xiangzheng,Sun, Zhigang,&Accatino, Francesco.(2024).Increasing food and feed self-sufficiency and avoiding manure N surplus in eastern regions of China through a spatial crop-livestock optimisation model.AGRICULTURAL SYSTEMS,217,15.
MLA Li, Yang,et al."Increasing food and feed self-sufficiency and avoiding manure N surplus in eastern regions of China through a spatial crop-livestock optimisation model".AGRICULTURAL SYSTEMS 217(2024):15.

入库方式： OAI收割

来源：烟台海岸带研究所

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