成本收益视角下中小养殖户畜禽粪污还田利用的实践与内在逻辑——以四川省蒲江县为例

Practice and Logical Research on the Utilization of Livestock and Poultry Manure Returning to the Field from the Perspective of Cost-benefit Analysis--Taking Pujiang, Sichuan Province as an Example

实现畜禽粪污全量利用是解决畜禽养殖污染、实现农业可持续发展的根本出路,也是实现碳达峰、碳中和的必然要求。当前我国种养结合农牧循环发展新格局已初步形成,但中小养殖户的畜禽粪污还田利用仍面临困境。文章从内部驱动和外部影响两个层面梳理中小养殖户畜禽粪污还田利用困境的成因,归纳总结典型案例——四川省蒲江县基于社会化服务的中小养殖户畜禽粪污还田利用的主要实践特征,并进一步从成本收益视角下分析种植户和养殖户参与畜禽粪污还田利用的内在逻辑,以期为提升全国其他省市中小养殖户的畜禽粪污还田利用率提供一般性的参考和借鉴。

Realising the full utilisation of livestock and poultry manure is the fundamental way out to solve livestock and poultry pollution and realise sustainable development of agriculture,and it is also the inevitable requirement to realise carbon peak and carbon neutrality.At present,the new pattern of combined agriculture and animal husbandry cycle development in China has started to form,but small and medium-sized farmers still face difficulties in the utilisation of livestock and poultry manure returned to the field.In this paper,the causes of the predicament of small and medium-sized farmers'livestock and poultry manure return to the field are sorted out from the internal drive and external influence levels,and the main practical features of the typical case-small and medium-sized farmers'livestock and poultry manure return to the field based on the socialization service in Pujiang County,Sichuan Province-are summarized.It also further analyses the internal logic of farmers'and cultivators'participation in the use of livestock and poultry manure returned to the field from the cost-benefit perspective,in order to provide general references and lessons for improving the use rate of livestock and poultry manure returned to the field by small and medium-sized farmers in other provinces and municipalities in China.