摘要
采用国家油菜产业技术体系农户固定观测点2016-2019年15个省1069个油菜种植户2890个样本的非平衡面板数据,建立超越对数生产函数模型,测算了蜂农授粉外部性效果对油菜产量的产出弹性和要素贡献率,并分析了其在平原地区和丘陵山区之间的区域差异。结果表明:蜂农授粉对油菜年产量有显著正向影响,在样本均值处的产出弹性为0.136,仅次于土地(0.861),高于劳动力(-0.009)、化肥(0.043)和其他生产投入(0.076),期间对油菜产量增长贡献为2.885%;各因素对油菜年产量增长的贡献率差异较大,由大到小依次为土地、其他生产投入、化肥、蜂农授粉、劳动力;蜂农授粉对油菜年产量的影响存在明显的区域差异,在平原县表现出更高的产出弹性和贡献率。因此,未来应将农业补贴资金适度向蜂业倾斜,加强蜂业知识宣传,引导种植业与养蜂业建立紧密型合作关系。
This paper measures the bee pollination externality effect on factor output elasticity and contribution rate of oilseed rape yield and analyzes the regional disparity between plain and mountainous area of this effect,using a trans-log production function model and 2890 observations from 1069 rapeseed farmers.The unbalanced panel data was collected from 15 provinces(regions)by China Agriculture Research System(Rapeseed)farmer fixed observation point from 2016 to 2019.The result showed that:1)Beekeeper’s pollination had a positive significant effect on the annual rapeseed yields,whose output elasticity was 0.136 at the mean value.It was second only to the land(0.861),higher than that of labor(-0.009),fertilizer(0.043)and other production inputs(0.076),contributing 2.885%of the growth of rapeseed yields during the period.2)The contribution rate of each factor to the increase of the annual yield of rape farmers varied greatly,in descending order of land,other production inputs,fertilizer,beekeeper’s pollination and labor.3)The effect of Beekeeper’s pollination on the annual rapeseed yields varied greatly from region to region,with a higher output elasticity and contribution rate in plain county.It is suggested the government increase the subsidies for beekeepers,strengthen the publicity of the knowledge of beekeeper’s pollination,promote the cooperation between planting industry and beekeeping industry in the future.
作者
冷博峰
李谷成
冯中朝
LENG Bofeng;LI Gucheng;FENG Zhongchao
出处
《华中农业大学学报（社会科学版）》
CSSCI
北大核心
2021年第3期118-127,189,共11页
Journal of Huazhong Agricultural University(Social Sciences Edition)
基金
国家社会科学基金重大项目“新形势下我国农业全要素生产率提升战略研究”(18ZDA072)。
关键词
油菜
蜂农授粉
产出弹性
贡献率
rapeseed
beekeeper pollination
output elasticity
contribution rate
