Research On The Current Situation And Driving Mechanism Of Farmland Conversion

Cultivated land is the fundamental guarantee of national food security.As the strategic orientation of the most valuable resources in China,cultivated land determines that we must implement the most strict farmland protection system.With the changing situation,the protection of cultivated land in China is facing greater pressure and challenge.In many places,the demand for cultivated land is increasing year by year because urbanization drives the continuous increase of the scale of residential,industrial and infrastructure construction land.In the current cultivated land cultivation mode in various regions of China,the proportion of grain crops is decreasing day by day,and the current agricultural diversified utilization mode is not entirely conducive to the protection of cultivated land.Beihai city is reflected in the cultivation of vegetables,sugar and other economic crops;Planting shrubs such as fruit and mulberry tea;The wood forest such as fast growing forest is planted;Pond digging and breeding.This paper aims to analyze the current situation and drive mechanism of the non grain of cultivated land resources,and analyze the advantages and disadvantages of the influence of cultivated land quality and capacity on the non grain phenomenon,and provide guidance for the layout of cultivated land in Beihai.This paper selects Beihai City as a case study,analyzes the status quo of farmland non grain based on the third national land survey data.Through visualization of the non grain area and non grain rate,the paper makes a hot analysis on the non grain rate in Beihai;The results show that the non grain driving factors are mainly fruit planting;From the influence of economic crops planted on the cultivated land of North Sea on the quality of cultivated land,most fruit trees and mulberry trees have shallow roots,which do not destroy the soil layer,and can be easily restored to cultivated land.However,the non grain phenomenon of wood forest and pond digging culture represented by Eucalyptus is destructive to soil layer,which has great influence on soil environment and microbial group,and the reversibility of restoration is poor,and the lost cultivated land capacity is difficult to be recovered.Combined with the frequent policies of Guangxi on farmland protection in recent years,the third land survey results of Beihai City adjusted and optimized the distribution of cultivated land in the city.On the basis of the existing cultivated land,all the land can be recovered and 40% of the project restoration land is added.By centralized and continuous layout,the land can be restored by priority,which can effectively supplement the gap of cultivated land protection and achieve the goal of cultivated land retention.On this basis,we need to implement the cultivated land management concept of "storing grain and land" and preventing the risk of high-quality cultivated land loss.Gradually,two kinds of restored land are gradually included in the strict management of cultivated land resources;We should treat the diversified development of agriculture correctly and support the local characteristic agriculture;Increase subsidies for grain support,improve agricultural producers’ knowledge literacy,and connect science and technology with production on agricultural technology platforms;Strengthen supervision and ensure the implementation of policies.Only by adhering to the strict tone and taking the hard measures of long teeth can the most strict farmland protection system be implemented.