Reducing Livestock Quantities to Avoid Manure Nitrogen Surplus: Would Meat Self-Sufficiency Be Met in Eastern Regions of China?

doi:10.2139/ssrn.4572307

	Reducing Livestock Quantities to Avoid Manure Nitrogen Surplus: Would Meat Self-Sufficiency Be Met in Eastern Regions of China?
	Li, Yang 1,2,3,4; Sun, Zhigang 1,4,5,7; Deng, Xiangzheng 6; Accatino, Francesco 2
发表期刊	SSRN
ISSN	15565068
	2023
关键词	Animals Fertilizers Food supply Manures Meats Nitrogen
DOI	10.2139/ssrn.4572307
英文摘要	In building a sustainable food system, the management of livestock production should avoid nitrogen (N) surplus and ensure animal-sourced food self-sufficiency. Reducing livestock quantities in regions producing excess animal-sourced food and livestock manure is an effective approach to reducing manure N surplus. In this study, we considered the eastern regions of China as a case study to quantitatively analyze whether meat self-sufficiency could be met when reducing the livestock quantity to avoid manure N surplus. We defined four strategies corresponding to livestock reduction scenarios: the current livestock quantity (scenario C); taking meat self-sufficiency as a priority regardless of the manure balance (scenario TB); taking manure N surplus avoidance as a priority regardless of the meat balance (scenario MNB); and considering the most limiting conditions between satisfying meat self-sufficiency and avoiding manure N surplus (scenario LF). A balance index was used to describe the excess (i.e., positive value) or deficiency (i.e., negative value) of meat and manure N. Concerning the whole of eastern China, in scenario LF, the meat balance index (TBI) and manure N balance index (MNBI) were 0.25 and -0.39, respectively, which could satisfy meat demand while avoid manure N surplus (for scenarios C, TB, and MNB, the TBIs were 1.95, 0, and 1.09, and the MNBIs were 0.56, -0.48, and 0, respectively). At the regional level, the regions with meat self-sufficiency accounted for more than 70% in the LF scenario, and manure N surplus could be avoided in all regions. However, southwestern China should adopt further measures, such as trading among adjacent regions and increasing manure fertilizer application, to satisfy the meat demand while avoiding surplus manure N. © 2023, The Authors. All rights reserved.
收录类别	EI
语种	英语
EI主题词	Animals ; Fertilizers ; Food supply ; Manures ; Meats ; Nitrogen
EI入藏号	20230320616
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/34286
专题	中国科学院烟台海岸带研究所知识产出
作者单位	1.Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China; 2.UMR SADAPT INRAE, AgroParisTech, Université Paris-Saclay, Paris, France; 3.Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China; 4.Zhongke Shandong Dongying Institute of Geography, Dongying, China; 5.CAS Engineering Laboratory for Yellow River Delta Modern Agriculture, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China; 6.Key Laboratory of Land Surface Pattern and Simulation of CAS, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China; 7.College of Resource and Environment, University of Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Li, Yang,Sun, Zhigang,Deng, Xiangzheng,et al. Reducing Livestock Quantities to Avoid Manure Nitrogen Surplus: Would Meat Self-Sufficiency Be Met in Eastern Regions of China?[J]. SSRN,2023.
APA	Li, Yang,Sun, Zhigang,Deng, Xiangzheng,&Accatino, Francesco.(2023).Reducing Livestock Quantities to Avoid Manure Nitrogen Surplus: Would Meat Self-Sufficiency Be Met in Eastern Regions of China?.SSRN.
MLA	Li, Yang,et al."Reducing Livestock Quantities to Avoid Manure Nitrogen Surplus: Would Meat Self-Sufficiency Be Met in Eastern Regions of China?".SSRN (2023).