Environmental impact and adaptation study of pig farming relocation in China

doi:10.1016/j.eiar.2021.106593

	Environmental impact and adaptation study of pig farming relocation in China
	Zheng, Guodi 1,2; Li, Mengqiu 1,2; Shen, Yujun 3; Yu, Bao 1,2; Chen, Tongbin 1,2; Liu, Xiaoyan 4
刊名	ENVIRONMENTAL IMPACT ASSESSMENT REVIEW
	2021-07-01
卷号	89 页码:9
关键词	Pig farming relocation Life cycle assessment Environmental impact Feed conversion ratio
ISSN号	0195-9255
DOI	10.1016/j.eiar.2021.106593
通讯作者	Zheng, Guodi(zhenggd@igsnrr.ac.cn) ; Liu, Xiaoyan(liuxiyaoyan@caas.cn)
英文摘要	Under the guidance of agri-food and water resources policies, some pig farms in China have gradually shifted their production from the Constrained Zone with a dense population and sensitive environment to the Potential Zone with richer feed resources and large environmental capacity. To evaluate whether the relocation is consistent with sustainable consumption and production, the study took the Key Zone with large pig production and supply as comparison object, constructed a life cycle assessment (LCA) model of pig production in the Constrained, Key, and Potential zones. The environmental impacts caused by the production of 1 ton of pork in these zones were 24.67 PE, 20.11 PE, and 20.44 PE, respectively, indicating that raising pigs in the Key and Potential zones is more environment-friendly than that in the Constrained Zone. Therefore, the relocation of pig farms from the Constrained Zone to the Potential Zone was found to be suitable for protecting water resources and environmental quality. Additionally, the Key Zone can maintain and even increase the existing breeding scale without transferring farms to the Potential Zone. LCA results showed that pork production has significant impacts on cancer risk, freshwater ecotoxicity, terrestrial eutrophication, and terrestrial acidification. Additionally, a majority of the environmental impacts result from crop and pig production, which are key processes in improving the pork supply chain. The soybean import ratio and feed conversion ratio are important indicators for reducing environmental impacts. Statement of novelty: To evaluate whether pig farm relocation in China is consistent with sustainable consumption and production, a life cycle assessment (LCA) model of pig production in the Constrained, Key, and Potential zones was conducted. According to the results, relocating farms from the Constrained Zone to the Key and Potential zones was more environment-friendly. The Key Zone can maintain and even increase the existing breeding scale without transferring the farms to the Potential Zone. LCA results showed that the majority of the environmental impacts result from crop and pig production. Thus, further guidance and education can be provided to farmers in the Potential and Key zones. In addition, sensitivity analysis indicated that large-scale farms should reduce the feed conversion ratio to reduce environmental impacts.
资助项目	National Key Research and Development Program of China[2016YFD0501408]
WOS关键词	LIFE-CYCLE ASSESSMENT ; FOOTPRINT ASSESSMENT ; SYSTEM ; IMPROVEMENT ; MANAGEMENT ; NITROGEN ; FLOWS
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000653734100007
资助机构	National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/164003]
专题	中国科学院地理科学与资源研究所
通讯作者	Zheng, Guodi; Liu, Xiaoyan
作者单位	1.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 3.Acad Agr Planning & Engn, Inst Rural Energy & Environm Protect, Beijing 100125, Peoples R China 4.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Guodi,Li, Mengqiu,Shen, Yujun,et al. Environmental impact and adaptation study of pig farming relocation in China[J]. ENVIRONMENTAL IMPACT ASSESSMENT REVIEW,2021,89:9.
APA	Zheng, Guodi,Li, Mengqiu,Shen, Yujun,Yu, Bao,Chen, Tongbin,&Liu, Xiaoyan.(2021).Environmental impact and adaptation study of pig farming relocation in China.ENVIRONMENTAL IMPACT ASSESSMENT REVIEW,89,9.
MLA	Zheng, Guodi,et al."Environmental impact and adaptation study of pig farming relocation in China".ENVIRONMENTAL IMPACT ASSESSMENT REVIEW 89(2021):9.