农户沼肥还田决策行为及其经济效应评价

发布时间：2018-08-09 20:33

【摘要】：论文基于江苏省淮安市和连云港市沼气池使用户调查数据,运用Probit模型考察农户沼肥还田决策行为的影响因素,构建产出供给方程评价农户沼肥还田决策行为的经济效应。结果表明:沼气池使用天数越多、户主年龄越小、户主是村干部或农民专业合作社成员以及人均承包地越多的农户,越倾向于选择沼肥还田,而家庭总资产较少或较多的农户都不愿意选择沼肥还田。控制其他条件,农户沼肥还田可能性每增加1%,单位面积农地产值提高0.07%(10.81元/hm~2),若研究区域沼气池使用户全部选择沼肥还田,单位面积农地产值将提高356.55元/hm~2,具有一定的经济效应,倾向得分匹配方法(PSM)的稳健性分析进一步证实这一结论。目前中国沼肥还田率总体不高且没有规范的沼肥还田管理项目,进而提出鼓励沼气池使用户充分利用沼气池,提高农户沼肥还田积极性的政策建议。
[Abstract]:Based on the investigation data of biogas digesters in Huai'an and Lianyungang cities of Jiangsu Province, this paper uses Probit model to investigate the influencing factors of the decision making behavior of returning biogas fertilizer to farmland, and constructs the output supply equation to evaluate the economic effect of the decision making behavior of returning biogas fertilizer to the fields of farmers. The results showed that the more days biogas digesters were used, the younger the head of household was, and the more rural households who were members of village cadres or farmers' specialized cooperatives and the more contracted land per capita, the more inclined they were to choose biogas fertilizer to return to the fields. However, households with less or more total assets were unwilling to choose biogas fertilizer to return to the field. Under the control of other conditions, the output value of agricultural land per unit area will increase by 0.07% (10.81 yuan / hm-2) for each increase in the possibility of returning biogas fertilizer to farmland. If the biogas digesters in the study area make the users choose to return biogas fertilizer to the fields, the output value per unit area of agricultural land will increase by 356.55 yuan / hm ~ (-2), which has certain economic effect. The robustness analysis of tendency score matching method (PSM) further confirms this conclusion. At present, the rate of biogas fertilizer returning to farmland in China is not high and there is no standardized management project of biogas fertilizer returning to the field, and the policy suggestions on encouraging biogas digesters to make full use of biogas digesters and to improve the enthusiasm of farmers to return biogas fertilizer to the field are put forward.
【作者单位】：南京农业大学公共管理学院;
【基金】：国家自然科学基金项目(71322301,71673144) 南京农业大学中央高校基本科研业务费专项资金项目(KJYQ201401) 高等学校博士学科点专项科研基金项目(20130097110038) 江苏省“333高层次人才培养工程”科研项目江苏省六大人才高峰高层次人才项目~~
【分类号】：F323.214;S141

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