先进技术采用有效改善了农户的收入水平吗?——来自荔枝主产区的证据

Has Advanced Technology Effectively Improved Farmers' Income? Evidence from Major Producing Areas of Litchi

荔枝是我国南方重要的热带水果,但荔枝产业的科技贡献率一直较低,这严重影响产业发展和种植户收入的提高。为此国家现代产业技术体系针对荔枝产业重点研发了种植管理的先进技术,以期通过产量优化带动收入的提高,因而有必要对其技术效应进行测算和评价。基于荔枝主产区种植户的调研数据,利用倾向值得分匹配的方法,对荔枝种植管理中先进技术采用的技术效应进行考察。实证发现,水肥一体化的技术效应最大,其次是间伐,高接换种的技术效应最小。整体来看,先进技术采用能对种植户收入增长产生正向改善效应。

Although litchi is an important tropical fruit in the south of China,its industry has enjoyed low contribution rate of science and technology,which seriously affects the development of the industry and the increase of farmers＇ income. To overcome this,the national modern industrial technology system has developed advanced cultivation and management technologyfor the very industry in order to optimize the yield and increase farmers＇ income.Therefore,it is necessary to measure and evaluate the effect brought about by the technology.This paper,based on investigation data of the main production area of litchi,with the help of the tendency to be worth the matching method,studied the effect of the advanced technology used in the management of litchi planting.The empirical study indicates that water and fertilizer integration technology has achieved the maximum effect followed by thinning while high grafting technology has resulted in the minimum effect. Overall,the use of advanced technology can have a positive improvement effect onfarmers＇ income growth.