The temporal and spatial differences and convergence of maize eco-efficiency
Maize eco-efficiency of the main producing provinces(cities and autonomous regions)from 2004 to 2018 was calculated by the EBM-Super-Malmquist index method,the temporal evolution and spatial distribution characteristics of maize eco-efficiency were analyzed,and the convergence of maize eco-efficiency was tested by the convergence method.The results showed that,maize eco-efficiency showed a fluctuating downward trend,and there were obvious characteristics of imbalance between regions.There were no σ convergence and absolute β convergence in maize eco-efficiency across the country and the four major regions,and regional dif-ferences would not be unconditionally narrowed.There were significant condition β convergence for maize eco-efficiency across the country and the four major regions.Disaster rate,financial support and human capital were important factors that affected β conver-gence of maize eco-efficiency condition.
maizeeco-efficiencyEBM-Super-Malmquist indextemporal and spatial differencesconvergence
NETL
NSTL
万方数据
