丁吉萍;黄季焜;盛誉;

• 1:西北农林科技大学经济管理学院
• 2:北京大学现代农学院/中国农业政策研究中心

摘要(Abstract)：

基于中国东北和华北六省1 099个农户地块层面调查数据,使用柯布-道格拉斯(Cobb-Douglas)和超越对数(Translog)两种生产函数估计,研究我国东北和华北地区主要粮食作物(包括玉米、小麦和水稻)单产和农户利润与农户土地经营规模之间的关系。结果表明:近年来随土地制度改革和土地流转加速,我国农户生产经营规模有逐渐扩大的趋势;玉米、小麦和水稻的经营规模与作物单产和利润均呈现倒"U"型关系,表明实现规模经营后的生产经营方式需切实有效的方法进一步提升。为避免盲目追求过大经营规模可能对国家粮食安全和农民增收产生不利影响,完善土地流转市场和社会化服务体系鼓励大田农作物生产发展新型经营主体的同时,控制适度规模经营是关键。

关键词(KeyWords)： 经营规模;单产和利润;土地流转;倒“U”型关系

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划（2016YFD0201303）;; 国家自然科学基金项目（71873005）;; 西北农林科技大学基本科研业务费人文社科项目（2452020072）

作者(Authors): 丁吉萍;黄季焜;盛誉;

DOI: 10.16195/j.cnki.cn36-1328/f.2021.01.03

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• (1)根据国家统计局统计，2013年这6个省的粮食总产量占国家粮食总产量的42%[24]。
• (2)在中国华北地区户均经营面积超过3.33公顷被定义为大户，在东北地区需要超过6.67公顷被定义为大户（辽宁省参照华北地区大户标准）。