Socio-economic drivers of pig production and their effects on achieving sustainable development goals in China

IF 2.6 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Z. Bai, Jun Zhao, Zhibiao Wei, X. Jin, Lin Ma
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引用次数: 17

Abstract

ABSTRACT Understanding changes in livestock production and their relationship with socio-economic and environmental impacts is important for exploring the pathways towards sustainable development goals (SDGs) of food systems. We used pig production in China as a case study to evaluate how socio-economic indicators influence pig production and nutrient losses using the environmental Kuznets curve (EKC) and Gini index. The recent acceleration in pig production is driven by an increase in average consumption of pig products per capita and government policies that support new pig production systems. The relationship between the rapid growth of worldwide pig production and its environmental impacts can be described using the EKC. The turning point in the EKC, i.e. the average income at which environmental degradation starts to decrease, is estimated to be USD 15–35 000 per capita when the pig production density is greater than 5.0 head per hectare of arable land. China’s pig production has not yet reached the EKC turning point; however, given the uneven distribution of pig production systems and supply chains (feed and water) and the limited land availability for utilizing manure nutrients, the continued increasing demand for pork in China will inevitably result in continued environmental degradation. The EKC turning point should be reached earlier than the global average level, especially as environmental regulation has been reinforced since 2014. Future government policies and regulations that optimize geographical locations for sustainable pig production (i.e. better spatial planning) and support improved manure nutrient management at both regional and farm levels are required.
中国生猪生产的社会经济驱动因素及其对实现可持续发展目标的影响
了解畜牧业生产的变化及其与社会经济和环境影响的关系,对于探索实现粮食系统可持续发展目标(sdg)的途径至关重要。本研究以中国生猪生产为例,利用环境库兹涅茨曲线(EKC)和基尼指数评估社会经济指标对生猪生产和养分损失的影响。最近生猪生产的加速是由人均生猪产品平均消费量的增加和政府支持新生猪生产系统的政策推动的。全球生猪产量的快速增长及其对环境的影响之间的关系可以用EKC来描述。EKC的转折点,即环境退化开始减少的平均收入,当生猪生产密度大于每公顷耕地5.0头时,估计为人均15 - 3.5万美元。中国生猪产量尚未达到EKC拐点;然而,鉴于生猪生产系统和供应链(饲料和水)分布不均,以及可用于利用粪肥养分的土地有限,中国对猪肉需求的持续增长将不可避免地导致环境的持续恶化。EKC拐点应该早于全球平均水平,特别是在2014年以来环境监管加强的情况下。未来的政府政策和法规需要优化可持续生猪生产的地理位置(即更好的空间规划),并支持改进区域和农场层面的粪肥养分管理。
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来源期刊
CiteScore
3.90
自引率
0.00%
发文量
13
审稿时长
>12 weeks
期刊介绍: Journal of Integrative Environmental Sciences (JIES) provides a stimulating, informative and critical forum for intellectual debate on significant environmental issues. It brings together perspectives from a wide range of disciplines and methodologies in both the social and natural sciences in an effort to develop integrative knowledge about the processes responsible for environmental change. The Journal is especially concerned with the relationships between science, society and policy and one of its key aims is to advance understanding of the theory and practice of sustainable development.
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