政策激励对稻农重金属污染治理意愿的影响——基于中国南方水稻主产省耕地地力保护补贴的考察

Impact of policy incentives on rice farmers' willingness to control heavy metal pollution: Investigation based on farmland fertility protection subsidies of major rice producing provinces in southern China

为探究政策激励对稻农重金属污染治理意愿的影响,基于南方重金属污染典型地区的调研数据,利用二元选择模型和中介效应模型,对中国南方水稻主产省稻农的重金属污染治理意愿进行研究。结果表明:1)耕地地力保护补贴的政策激励对于稻农的重金属污染治理意愿具有显著促进作用,补贴资金可以直接改善稻农的预算约束;2)耕地地力保护补贴的主观规范可以改变稻农的收入预期,进而影响稻农的重金属污染治理意愿;3)耕地地力补贴政策的激励效果因农户类型而异,纯农户更容易受到耕地地力保护补贴金额的影响,兼业户更容易受到政策主观规范的影响。据此,提出以下对策建议,首先,完善补贴的推广模式和增强补贴力度;其次,根据群体特点差异化实施耕地地力保护补贴政策;最后,创造条件促进稻农治理意愿向行为转化。

In order to study the influence of policy incentives on rice farmers'willingness to control heavy metal pollution,based on the survey data of typical heavy metal pollution areas in southern China,Binary selection model and mediation effect model was used to study rice farmers'willingness to control heavy metal pollution in major rice producing provinces in southern China.The results show that:1)The policy incentives of farmland fertility protection subsidy have a significant role in promoting the intention of heavy metal pollution control of rice farmers,and the subsidy funds can directly improve the budget constraints of rice farmers;2)The subjective norms of farmland land use protection subsidies can change the income expectations of rice farmers,and then affect the willingness of rice farmers to control heavy metal pollution.3)The effect of farmland land use subsidy policy incentives varies according to the type of farmers.Pure farmers are more vulnerable to the impact of the amount of farmland land use protection subsidies,and part-time farmers are more vulnerable to the impact of the subjective norms of the policy.Based on this,the following countermeasures and suggestions are put forward:Firstly,improving the promotion mode of subsidies and strengthen the subsidies;Secondly,implementing the farmland fertility protection subsidy policy according to the differences of group characteristics;finally,creating conditions to promote the transformation of rice farmers'governance will into behavior.