基于DEA-Tobit两步法的安徽省耕地利用效率及其影响因素研究

Study on Land Use Efficiency and Its Influencing Factors in Anhui Province Based on DEA-Tobit Two-Step Method

利用数据包络分析(DEA)方法研究安徽省2013—2017年耕地利用效率,并基于Tobit模型分析影响耕地利用效率的因素。研究表明:(1)2013—2016年,安徽省耕地利用综合效率有效的地市数量持续减少,在2017年有所上升;(2)合肥、亳州、淮南、六安、马鞍山和黄山6市的耕地利用效率连续5年有效,安徽省各地市耕地利用综合效率的升降更多是由规模效率引起的;(3)耕地利用效率无效地市的各种投入要素都存在一定的冗余,其中农业机械总动力的投入冗余相对较高;(4)安徽省耕地利用效率的显著影响因素为人均GDP、灌溉指数、复种指数,影响程度为:灌溉指数>复种指数>人均GDP。

Data envelopment analysis(DEA)and ineffective projection analysis were used to study the cultivated land use efficiency in Anhui Province,and the influencing factors of cultivated land use efficiency were analyzed based on Tobit model.The results show that:(1)from 2013 to 2016,the number of prefectures and cities with effective comprehensive efficiency of cultivated land use in Anhui Province has been decreasing continuously,and increased in 2017;(2)The cultivated land use efficiency of Hefei,Bozhou,Huainan,Luan,Ma'anshan and Huangshan has been effective for five consecutive years,and the comprehensive efficiency of cultivated land use in Anhui Province has been rising and falling more by regulations;(3)there are redundancies in input factors of inefficient land use efficiency,among which the input redundancy of total power of agricultural machinery is relatively high;(4)The significant influencing factors of cultivated land use efficiency in Anhui Province are GDP per capita,irrigation index and multiple cropping index,and the degree of influence is:irrigation index>multiple cropping index>GDP per capita.