农业资源与环境学报2026，Vol.43Issue(1)：91-103,13.DOI:10.13254/j.jare.2024.0925
陕西省粮食生产效率动态演变及空间分布差异
Dynamic changes and spatial distribution differences of grain production efficiency in Shaanxi Province
摘要
Abstract
This study aimed to provide theoretical support for ensuring local food security by investigating grain production efficiency in counties(cities)of Shaanxi Province.Based on the DEA-Malmquist index model,the dynamic changes in grain production efficiency across 101 counties(cities)in Shaanxi Province from 2000 to 2021 were calculated.Kernel density functions and Dagum Gini coefficients were utilized to depict the dynamic change process and the primary sources of spatial distribution differences in grain production efficiency in Shaanxi Province.The results indicated that from 2000 to 2021,most regions in Shaanxi Province experienced a steady increase in grain production efficiency,with an average annual growth rate of 1.60%.Technological progress was the main driver of the improvement in grain production efficiency.Among the 101 counties(cities),69 exhibited varying degrees of input redundancy.Kennel density analysis showed grain production efficiency increased over time but with fluctuations,and the growth rate accelerated over the period.Most areas in the province showed consistent trends in grain production efficiency increases or decreases,although spatial non-uniformity in grain production efficiency rose.Some regions had extremely high or low grain production efficiency,with the disparities between northern Shaanxi-southern Shaanxi and central Shaanxi-southern Shaanxi being the primary contributors to this spatial non-uniformity.From 2000 to 2021,grain production efficiency in Shaanxi Province steadily increased.Differences in infrastructure and technological levels among different regions led to rising spatial non-uniformity in grain production efficiency.Moving forward,it is recommended to focus on four aspects:enhancing agricultural science and technology levels,stabilizing grain planting areas,optimizing input redundancies,and maintaining balanced agricultural policies.These efforts aim to comprehensively improve the grain production efficiency in Shaanxi Province.关键词
粮食生产效率/空间分布/DEA-Malmquist指数模型/动态演变/核密度/基尼系数Key words
grain production efficiency/spatial distribution/DEA-Malmquist index model/dynamic change/Kernel density/Gini coefficient引用本文复制引用
陈鑫,杨海娟,付璐瑶,梁英明..陕西省粮食生产效率动态演变及空间分布差异[J].农业资源与环境学报,2026,43(1):91-103,13.基金项目
国家自然科学基金项目(42171197) （42171197）
