Increasing food and feed self-sufficiency and avoiding manure N surplus in eastern regions of China through a spatial crop-livestock optimisation model

doi:10.1016/j.agsy.2024.103911

	Increasing food and feed self-sufficiency and avoiding manure N surplus in eastern regions of China through a spatial crop-livestock optimisation model
	Li, Yang 1,2,3,6; Shi, Yong 4; Deng, Xiangzheng 5; Sun, Zhigang 1,6,7,8; Accatino, Francesco 2
发表期刊	AGRICULTURAL SYSTEMS
ISSN	0308-521X
	2024-05-01
卷号	217 页码:15
关键词	Food and feed self-sufficiency Manure N surplus Transportation Soybean Optimisation
DOI	10.1016/j.agsy.2024.103911
通讯作者	Sun, Zhigang([email protected]) ; Accatino, Francesco([email protected])
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.
资助机构	Key Program of the Chinese Academy of Sciences ; Yellow River Delta Scholars Program ; ANR under the Investissements d'avenir programme
收录类别	SCI
语种	英语
关键词[WOS]	YIELD
研究领域[WOS]	Agriculture
WOS记录号	WOS:001216828300001
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/36066
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
通讯作者	Sun, Zhigang; Accatino, Francesco
作者单位	1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Paris Saclay, UMR, AgroParisTech, SADAPT,INRAE, F-91120 Palaiseau, France 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 4.China Univ Geosci, Sch Econ & Management, Wuhan 430074, 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.