基于选择实验的畜禽养殖污染治理环境价值评估

ENVIRONMENTAL VALUE OF POLLUTION CONTROL OF LIVESTOCK AND POULTRY BREEDING BASED ON CHOICE EXPERIMENT

关键词:  养殖场周边居民  畜禽粪污治理  选择实验  支付意愿  环境价值

Key words:  residents around the farms  livestock and poultry manure resource  choice experiment  willingness to pay  environmental value

摘要:

目的 我国畜禽养殖业的飞速发展造成严重环境问题，尤其是对养殖场周围居民的生活和健康带来严重影响。研究养殖场周围居民对养殖场畜禽粪污治理效果属性的偏好与支付意愿，可以为科学评估环境治理的收益和合理确定污染治理的优先序提供依据，对畜禽粪污的资源投入进行合理配置。方法 文章设计了一个包括居住环境空气状况、水质、人畜共患传染病、价格等属性的选择实验，以江苏省淮安市的养猪场周围129户居民调研数据为例，利用条件Logit模型测量了畜禽粪污资源化各属性的隐含价格和居民的补偿剩余。结果 研究发现，居民对空气状况、水质、人畜共患传染病的支付意愿分别为39.89元/人、37.83元/人、7.68元/人，居民对气味和水质这两个环境属性的关注度较高且有较高的支付意愿，对降低人畜共患传染病的支付意愿最低，通过补偿剩余计算得到，当地居民愿意为环境改善支付100.18元/人。结论 政府在对养殖环境污染治理时，应优先考虑具有空气和水质改善作用的治理措施。

Abstract:

With the rapid development of China′s livestock and poultry breeding industry, a series of environmental problems have emerged, which has a particularly prominent impact on the lives and health of the residents around the farms. This paper analyzes residents' preferences and willingness to pay for the improvement of living environment caused by the utilization of livestock and poultry manure resources. And it provides reference for scientifically assessing the value of the environment and the priority of environmental governance. A choice experiment considering the attributes of air conditions, water quality, health risk, price and others was designed to elicit the results. The conditional Logit model was used to measure the implied price of each attribute, as well as the compensation surplus of 129 households living around the pig farms in Huai'an, Jiangsu province. The results indicated that residents' willingness to pay for air conditions, water quality and health risks were 39.89 yuan/person, 37.83 yuan/person, 7.68 yuan/person, respectively. Residents paid more attention to air conditions and water quality, and were willing to pay more for them, while the health risks got the least concerns. From the perspective of compensation surplus, local residents were willing to pay 100.18 yuan/person for environmental improvement. It concludes that air and water quality issues should be given priority when the government tackles the problem of livestock and poultry pollution.