Spatio-temporal coupling and mechanism of high-quality agricultural development and cultivated land use efficiency in Sichuan province
[Objective]The present paper aimed to study the spatio-temporal coupling characteristics and influencing mechanism of high-qual-ity agricultural development and cultivated land utilization efficiency in Sichuan province,so as to provide a scientific basis for promoting the coordinated development of the two systems and improving the high-quality agricultural development level of Sichuan province.[Method]Tak-ing 21 cities and prefectures in Sichuan province as the research objects,the spatio-temporal coupling characteristics and influencing mecha-nisms of high-quality agricultural development and cultivated land use efficiency in Sichuan province from 2011 to 2021 were studied by en-tropy method,super-efficiency DEA model,kernel density estimation,coupling coordination model and geographic detector.[Result](i)The high-quality agricultural development level and cultivated land utilization efficiency in Sichuan province improved,and the overall spatial evolution of high-quality agricultural development level changed from unipolar to multipolar,forming a pattern of'Chengdu Plain being the best,peripheral graded mosaic',the spatial distribution of cultivated land utilization efficiency and the high-quality agricultural development level had convergence,forming a pattern of'high-efficiency large-area uplift area with Chengdu,Ya'an,Deyang and Meishan as the core,Panzhihua as the polar core,and the peripheral hierarchical collapse'.(ii)The coupling coordination between the high-quality development level of agriculture and the efficiency of arable land utilization in Sichuan province increased from 0.526 to 0.704,and the coordination effect gradually increased.The whole experienced three levels of changes of'reluctant coordination,primary coordination,and intermediate coordination'.From the perspective of time changes,the province roughly experienced three periods of'development,lag and improve-ment'.From the perspective of spatial changes,Chengdu took the lead in entering the stage of high-quality coordination,followed by Ya'an and Panzhihua.Mianyang,Meishan,Leshan and Neijiang entered a good coordination stage,while Ganzi Prefecture,Aba Prefecture and Li-angshan Prefecture were still in a disorder stage.(iii)The driving force of agricultural scale increased year by year,becoming the most sig-nificant driving factor,resource consumption and agricultural economic coordination index driving force also improved,while the driving force of urbanization level and mechanization level weakened.[Conclusion]Promoting large-scale agricultural management and reducing resource consumption have a certain positive effect on promoting high-quality agricultural devlopment and coordinated development of farmland utiliza-tion efficiency.In addition,the province should reasonably promote urbanization development on the basis of stabilizing the scale of existing cultivated land and striving to achieve no reduction in the quantity of cultivated land and improvement in quality.
High-quality development of agricultureLand use efficiencyGeographic detectorCoupling coordinationSichuan province
NETL
NSTL
万方数据
