Measurement and Spatio-temporal Evolution of Grain Production Efficiency in the Yellow River Basin
A super-efficiency SBM model based on non-expected output is constructed,and grain production ef-ficiency is measured and analysed for 9 provinces(regions)in the Yellow River basin from 2012 to 2022,and the research results are as follows.1)During the inspection period,the overall grain production efficiency in the Yellow River basin is at a relatively low level and DEA is ineffective,and there is a large space for improving grain production efficiency.2)From the point of view of spatial evolution characteristics,there are obvious re-gional differences in grain production efficiency in the Yellow River basin,with grain production efficiency from high to low being in the order of downstream areas,upstream areas,and midstream areas,and Henan Province is in the leading position in terms of grain production efficiency.3)From the perspective of time evolution characteristics,the overall grain production efficiency in the Yellow River basin shows a"V"trend.The fluctu-ation of grain production efficiency in the downstream areas is larger,but its average annual growth rate is the lowest;the grain production efficiency in the midstream areas is more stable with the largest average annual growth rate;the grain production efficiency in the upstream areas is the most unstable with the average annual growth rate being at a medium level.Since the 19th CPC National Congress,the grain production efficiency of all provinces(regions)in the Yellow River basin has increased to different degrees,and Inner Mongolia has the highest growth rate in grain production efficiency.
super-efficiency SBM modelgrain production efficiencythe Yellow River basinspatio-temporal e-volution
NETL
NSTL
万方数据
