粮食安全背景下粮食产业高质量发展水平测度及空间演变分析

Spatial Evolution of High-Quality Development of the Food Industry in the Context of Food Security and its Driving Mechanisms

采用综合赋权法测度2012—2021年中国三大功能区的粮食产业高质量发展水平,并借助Dagum基尼系数和Kernel密度估计进一步探究粮食产业高质量发展的空间演变。研究表明:考察期内,全国和三大功能区粮食产业高质量发展总体呈现稳步上升的态势,但存在显著的地区不平衡,特别是党的十九大之后,三大功能区粮食产业高质量发展水平都有不同幅度的提升,其中主销区的粮食产业高质量发展水平较高,而产销平衡区的粮食产业高质量发展水平相对较低;三大功能区粮食产业高质量发展空间非均衡程度呈波动上升趋势,其总体差距主要源于区域间差距;全国及三大功能区粮食产业高质量发展的演进脉络呈现梯度效应和多极化现象,区域之间存在较大的差异,存在“优中更优”的现象。

It is found that development of the national grain industry showed a steady upward trend from 2012 to 2021.Especially after the 19th CPC National Congress,the food industry in the three main grain regions keep thriving.The main grain marketing areas show a higher trend while the producing areas are a little lower.Fluctuation can also be found among the three regions because of interregional disparities.The national grain industry shows a gradient effect and multi-polarization.