沈阳农业大学学报2025，Vol.56Issue(1)：156-165,10.DOI:10.3969/j.issn.1000-1700.2025.01.015
下辽河平原区耕地绿色利用效率的时空演化及影响因素研究
Spatial-temporal Evolution and Influencing Factors of Green Utilization Efficiency of Cultivated Land in Lower Liaohe Plain
摘要
Abstract
[Objective]This research examines the laws governing the evolution of green land-use efficiency in cultivated areas of the Liaohe Plain,both temporally and spatially,as well as the underlying factors.It aims to provide a scientific rationale for safeguarding national food security,promoting low-carbon emission reductions,and achieving sustainable agricultural economic development.[Methods]Utilizing the super-efficiency SBM model,we evaluated the green utilization efficiency of cultivated land across 32 agricultural counties(cities,districts)within the lower Liaohe Plain,spanning from 2009 to 2022,and the spatial autocorrelation and the Tobit model,alongside other analytical tools,was employed to investigate the characteristics of the evolution in temporal and spatial patterns,as well as the factors influencing the efficiency of green land utilization across various counties(cities,districts).[Results]The findings indicate that the mean efficiency of green land utilization in the Liaohe Plain's lower region stands at 1.014,most of which are above the optimal state,and the efficiency level shows a slight decline.There is a significant positive spatial correlation between the green utilization efficiency of cultivated land in the study area;A certain level of spatial clustering is observed in the efficiency of green land utilization for cultivated areas within the study region,but the agglomeration effect in most areas is not significant,and with the passage of time,the agglomeration areas continue to migrate.The efficiency of green land utilization for cultivated land in the lower Liaohe Plain exhibits a slight inverted U-shaped trend,transitioning from the western to the eastern regions,and it is slightly higher in the west.It is U-shaped from south to north,and slightly higher in the south.[Conclusion]Through Tobit model analysis,the conclusion drawn is that the size of per capita farmland held by rural inhabitants and government support for agriculture has a beneficial effect on enhancing the efficiency of green land use for cultivated land.Conversely,several factors exert a detrimental influence on this efficiency,including the level of land cultivation intensity,the area-based utilization rate of agricultural machinery,and the average per capita disposable income of rural residents.The current situation reveals notable disparities in the green utilization efficiency of cultivated land across the lower Liaohe Plain.In the future,we should optimize the efficiency of resource allocation,foster regional collaboration,it is essential to establish a synergistic mechanism and harness the exemplary role of high-potential areas,and promote the green utilization efficiency of cultivated land in various regions.关键词
超效率SBM模型/耕地绿色利用效率/时空演化/聚集效率/资源配置效率Key words
super-efficient SBM model/green utilization efficiency of cultivated land/temporal and spatial evolution/aggregation efficiency/resource allocation efficiency分类
管理科学引用本文复制引用
韩晓晨,刘雨婷..下辽河平原区耕地绿色利用效率的时空演化及影响因素研究[J].沈阳农业大学学报,2025,56(1):156-165,10.基金项目
辽宁省教育厅高校基本科研项目重点项目(LJ112410147069) （LJ112410147069）
鄂尔多斯研究院校企合作项目(YJY-XD-2023-008) （YJY-XD-2023-008）
