摘要
利用DEA模型测度安徽省16个地市耕地利用效率,运用ESDA模型从全局和局部分析了耕地利用效率的时空变化特征,通过GTWR模型从时空维度探讨了安徽省耕地利用效率的主要影响因素。结果表明,①2013—2017年安徽省16个地市耕地利用综合效率均值均大于0.9,安徽省耕地利用效率处于较高水平,且随时间变化波动起伏,规模效率是导致综合效率变化的关键;②耕地利用效率H-H集聚区从空间上由合肥市向西北逐步迁移,L-L集聚区分布在安徽省西南部,主要为山地、丘陵区;③人均GDP、灌溉指数、复种指数、农业劳动力人均耕地面积等因素显著影响安徽省耕地利用效率,其中灌溉指数对耕地利用效率解释力最大,复种指数、劳动力人均耕地面积和人均GDP的解释力次之;④耕地利用效率影响因素影响程度的空间变化存在显著差异。
As the basis of food production,cultivated land was the root of human survival and development,and its utilization efficiency has a profound impact on the development and progress of human civilization.This paper taked 16 prefecture-level cities in anhui province as the research area,Using ESDA model to measure the utilization efficiency of cultivated land in various cities,and analyzed the spatial-temporal variation characteristics of the cultivated land utilization efficiency from both global and local perspectives by ESDA model.Finally,the main influencing factors of the cultivated land utilization efficiency in anhui province were discussed from two dimensions of time and space by GTWR model.The results showed that:①the average comprehensive utilization efficiency of cultivated land in 16 cities in anhui province from 2013 to 2017 was greater than 0.9,indicating that the utilization efficiency of cultivated land in anhui province was at a high level and fluctuated with time;②the H-H cluster of cultivated land utilization efficiency gradually migrated from hefei city to the northwest,and L-L cluster was distributed in the southwest of anhui province,mainly in mountainous and hilly areas;③per capita GDP,irrigation index,multiple cropping index,agricultural labor per capita cultivated land area and other factors significantly affected the utilization efficiency of cultivated land in anhui province;④there was a significant difference in the spatial variation of the influencing factors of cultivated land utilization efficiency.
作者
刘子旋
梁腾飞
梁栋栋
吴旭
LIU Zi-xuan;LIANG Teng-fei;LIANG Dong-dong;WU Xu(School of Geography and Tourism,Wuhu241003,Anhui,China;Geographic Big Data Research Center,Wuhu241003,Anhui,China;School of Computer and Information,Anhui Normal University,Wuhu241003,Anhui,China;Chaohu University,Chaohu238000,Anhui,China)
出处
《湖北农业科学》
2021年第14期117-124,132,共9页
Hubei Agricultural Sciences
基金
安徽省教育厅人文社会科学重点研究基地项目(SK2015A028)
国家自然科学基金项目(71603003)。
