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Emission trading mechanism in pig farming pollution control: an empirical study of Zhejiang Province, China
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Emission trading mechanism in pig farming pollution control: an empirical study of Zhejiang Province, China
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Journal Article
Emission trading mechanism in pig farming pollution control: an empirical study of Zhejiang Province, China
2021
Overview
Environmental problems associated with pig production have shown a growing trend in China. Subsequently, local governments have imposed bans and restrictions on pig production to control pollution, which has affected the supply of pork in the market. An emission trading system is an effective means to control the pollution of pig production. In this study, the emission trading system for controlling point source pollution is introduced into the control of pig farming nonpoint source pollution. Taking Zhejiang Province as the research area, we selected purposely four representative pig production cities in Hangzhou, Jiaxing, Ningbo, and Quzhou as the survey sites and conducted a face-to-face random sampling survey of scale pig farmers from 2018 to 2019. A Contingent Valuation Method (CVM) was used to evaluate the willingness of scale pig farmers to invest in biogas facilities under the emission trading system, and then, a regression model was constructed to analyze the feasibility of the emission trading system for pig farming pollution control. The empirical study found that the emission trading system can encourage scale pig farmers to use biogas fermentation to treat pollution and make environmental investments in recycling waste resources. Because of the scale economy of pollution treatment, it is proved feasible to introduce the emission trading system into the control of pig farming pollution.
