非正式契约对耕地土壤有机质提增行为的影响  

AN EMPIRICAL STUDY ON THE EFFECT OF INFORMAL CONTRACT ON ORGANIC MATTER INCREASE IN CULTIVATED LAND

作　　者：姚志 谭光万 王文韬 李辛一 Yao Zhi;Tan Guangwan;Wang Wentao;Li Xinyi(School of Economics and Management,Yangtze University,Jingzhou 434023,Hubei,China;Institute of Agricultural Economics&Development,Chinese Academy of Agricultural Sciences,Beijing 100081,China;College of Economics and Management,China Agricultural University,Beijing 100083,China)

机构地区：[1]长江大学经济与管理学院,湖北荆州434023 [2]中国农业科学院农业经济与发展研究所,北京100081 [3]中国农业大学经济管理学院,北京100083

出　　处：《中国农业资源与区划》2024年第7期133-143,共11页Chinese Journal of Agricultural Resources and Regional Planning

基　　金：国家自然科学基金面上项目“基于实验经济的稻米镉污染农户治理行为及干预机制研究”(71773052);中国农业科学院科技创新工程(10-IAED-08-2023,10-IAED-RC-04-2023);湖北省教育厅科学研究计划资助项目“新阶段湖北省农村土地延包问题的战略解构及路径研究”(Q20221316);2022年度省教育厅哲学社会科学研究重点项目“湖北耕地‘非农化’与‘非粮化’的空间分布、影响评估与遏制对策研究”(7110103203);2022年度长江大学校社科基金重点项目“进城落户农民耕地利用效率、延包方案与产权细化研究”(2022csz01)。

摘　　要：[目的]中国耕地质量下降和土地污染日益严重已是不争的事实,“藏粮于地”战略下保护耕地地力迫在眉睫,探寻农地流转非正式契约对农户耕地质量保护行为的影响具有十分重要的理论价值与现实意义。[方法]文章采用Tobit模型对2017—2018年的地块调查数据样本进行了实证估计。[结果](1)相比短期契约期限,达成农地流转的长期契约期限将提高转入地块的有机肥施用量;相比非正式的人情租流转形态,货币租流转也提高了转入地块的有机肥施用量;(2)在转入地块上签订的流转时间越长,秸秆还田量可能就越大。[结论]地块产权归属越清晰越有利于耕地质量保护。为实现“藏粮于地”战略目标,在未来农地流转契约形式选择中,建议选择货币租流转形态和长期流转契约协议,能够改变农户的“掠夺式经营”模式,促进耕地的营养平衡,保护耕地地力可持续。It is an indisputable fact that cultivated land quality is declining and land pollution is becoming more and more serious in China.It is urgent to protect arable land fertility.The purpose of this paper is to explore the impact of different forms of farmland transfer on farmers'cultivated land quality protection behavior.And the Tobit model was used to empirically estimate the land survey data samples from 2017 to 2018.The results were listed as follows.(1)Compared with the short-term contract term,the long-term contract term of agricultural land transfer increased the amount of organic fertilizer applied to the transferred plots;Compared with informal human rent circulation,money rent circulation also increased the amount of organic fertilizer application in the transferred plot.(2)The greater the amount of straw returned to the field may be,the longer the transfer time signed on the land transfer.It concludes that the clearer the ownership of farmland,the better the protection of farmland quality.Based on this,in the selection of farmland transfer form,it is suggested that it should choose the form of currency lease transfer and long-term transfer agreement,which can change the"predatory management"mode of farmers,so as to promote the nutritional balance and protect the sustainable fertility of cultivated land.

关 键 词：粮食安全 非正式流转 租金形态 契约期限 耕地质量保护 化肥施用 产权归属 

分 类 号：F321.1[经济管理—产业经济]