Research On The Driving Forces And Policy Optimization Of Cultivated Land Use Change In Grain Production In Jiangsu Province

Since the reform and opening up,the rapid development of industrialization and urbanization in China has led to the occupation of cultivated land,resulting in a decrease in the amount of available cultivated land resources,with the area of cultivated land approaching 1.8 billion acres.At the same time,one of the prominent characteristics of China’s food trade is that the import sources are concentrated in a few countries,which also poses a significant potential threat to China’s food security.The 20 th National Congress of the Communist Party of China clearly proposed to firmly hold onto the red line of 1.8 billion acres of cultivated land,fully build high-quality basic farmland,and comprehensively consolidate the foundation of food security.Therefore,this study can provide theoretical exploration for optimizing the structure of cultivated land utilization and ensuring food production safety in the study area.The urbanization development level in Jiangsu Province is relatively high,and the population size base is large and continues to expand,resulting in a prominent contradiction between the protection and utilization of arable land and food production.This study selected Jiangsu Province as the research object,which is typical and representative.This study is based on statistical analysis,using the cultivation rate and multiple cropping index to explore the changes in arable land area from 2010 to 2021,and analyze the degree of arable land utilization in Jiangsu Province.Then,using SPSS software and principal component analysis model,the main driving factors were selected,including the sown area of grain crops,total grain yield,grain yield per unit area,and per capita grain yield.The quantitative analysis was conducted on the changes in cultivated land use and grain production in Jiangsu Province from 2010 to2021.According to the analysis results,from 2020 to 2021,the cultivated land area in Jiangsu Province increased from 4596 thousand hectares to 4688 thousand hectares,while the per capita cultivated land area decreased from 0.88 acres to 0.83 acres.The sown area of grain crops has increased from 5372.17 to 5427.54 thousand hectares,with wheat and rice accounting for over 40% of the sown area.The total grain production increased from 32.351 million tons to 37.461 million tons.The grain yield per hectare has increased from 6124 kilograms per hectare to 6902 kilograms per hectare.The per capita grain production has increased from 421.3 kilograms per person to 441.2 kilograms per person.Social and economic development,progress in agricultural technology,and natural factors all have a significant impact on changes in arable land use.On this basis,this study summarizes the main problems in the utilization of cultivated land in Jiangsu Province,including inefficient utilization of cultivated land resources and structural integration,inadequate policies and supervision of cultivated land,inadequate cooperative organizations and lack of financial support,insufficient popularization of advanced technology and impact on the quality of cultivated land.At the same time,the main reasons for the problem of cultivated land utilization were analyzed from three aspects of economic benefits,protection awareness,and policy systems.Based on these analyses,this study proposes policy optimization suggestions for cultivated land utilization and food production,including reasonable design and planning to revitalize existing cultivated land,improving utilization policies and strengthening supervision and control,strengthening cooperative organizations to develop modern agriculture,and developing agricultural technology to improve cultivated land quality.