Research On Agricultural Eco-efficiency Of Anhui Province Based On Super-efficient SBM Model

With the development of society and the progress of technology,The contradiction between the increasing material needs of mankind and rare natural resources is becoming more intense.Agricultural development is no longer aimed at solving the problem of food and clothing.After the reform and opening up,the disadvantages brought about by the rapid development of agriculture have become increasingly prominent,and the pollution of the agricultural environment is getting more and more serious.The imbalance of the agricultural ecosystem will inevitably restrict the development of agriculture.During the rapid development of agriculture in Anhui Province,the excessive use of pesticides and fertilizers caused soil pollution and a series of food safety problems.The issue of food security has become the focus of all countries,and it is essential to achieve the green and sustainable development of agriculture.The efficiency of agricultural ecology is an indicator to measure the sustainable development of agriculture.The study of agricultural ecological efficiency and influencing factors in Anhui Province has certain practical significance for the development of Anhui’s agricultural transformation.In this study,16 cities in Anhui Province were taken as the research objects.In the previous index system of ecological efficiency,add environmental factors as undesired output to construct a new index system of ecological efficiency.First,based on the Super-SBM model,from the perspective of Anhui Province as a whole,calculate the ecological efficiency from 2000 to 2019,and from the perspective of each city,calculate the ecological efficiency from 2011 to 2019.The results show that the agricultural ecological efficiency of Anhui Province has been on a gradual upward trend since 2000,the agricultural efficiency of different cities is quite different,and the agricultural ecological efficiency of northern Anhui is higher than southern Anhui and central Anhui.Secondly,Analyze the temporal and spatial evolution of agricultural ecological efficiency in Anhui Province,and analyzes the spatial pattern and temporal transformation characteristics of Anhui agricultural ecological efficiency by calculating the spatial Moran index and constructing a Markov transition matrix.The results show that the agricultural eco-efficiency in Anhui Province has no obvious agglomeration characteristics.The evolution of eco-efficiency is stable and difficult to move by leaps and bounds,but there is a trend towards high efficiency.Finally,taking agricultural ecological efficiency as a dependent variable,construct a Tobit regression model to analyze the influencing factors of agricultural ecological efficiency in Anhui Province.The results show that the influencing factors and mechanism in southern Anhui,northern Anhui and central Anhui are different.According to the results,suggestions are made for the improvement of agricultural ecological efficiency in Anhui Province.While considering the factors of the whole province,it also implements countermeasures according to local conditions according to the characteristics of the region.