Cultivated Land Protection Economic Compensation Partion And Its Dynamic Change In China

Food security is not only a matter of national economy and people’s livelihood,but also a political problem,for 31 provinces(municipalities and autonomous regions),although food can be supplied through the regional circulation,regional equity and regional coordinative development are important goals of every province and national development.In essence,grain security problem stems from the cultivated land problem,cultivated land protection is also an effective way to ease or even solve food security problem,that is,cultivated land protection is means,and food security is the goal.In the actual execution,our country has issued and been implementing a series of arable land protection policies,which have played a certain inhibition for cultivated land reduction,but current policies are still may be perfected,especially in the fields of cultivated land protecting economic compensation and ecological protection.At present,the researches on ecological protection concerned into the arable land protection economic compensation are so few,more a lack of cultivated land protection economic compensation partition studies based on the dual perspectives of “food security and ecological security”.In view of this,in this paper,on the premise of existing theories,policies and practices,based on the dual perspective of “food security and ecological security”,using food security method and ecological security method,referencing the method of grain supply and demand balance and improved ecological footprint models to set up cultivated land protection economic compensation comprehensive partition model.Using statistical yearbook data of state and 31 provinces and cities,through calculating the per capita profit and loss of two perspecyives separately and confirming weight,receiving the partitions of cultivated land protection economic compensation in China from 2001-2015,concluding that cultivated land dynamic change characteristics of three regions,and make analysis of the layout characteristics of three arable land regions.Main conclusions are as follows:(1)Using food security method and ecological security method,setting up cultivated land protection economic compensation comprehensive partitionmodel,according to the model and related data measured cultivated land protection economic compensation comprehensive regional comprehensive scores of 31 provinces(municipalities and autonomous regions)in 2001-2015.(2)According to the results of food safety method,the cultivated land grain production function of provinces maintains a relatively stable situation;According to the results of ecological safety method,the per capita amounts of ecological profit and loss of cultivated land in each provinces are different and fluctuate in every year,and there are more provinces in deficit for a long time.(3)According to the results of the dual perspectives of food security and ecological security,the numbers of provinces belong to cultivated land surplus area are increasing after decreasing,but the numbers of provinces belong to cultivated land balance area and deficit area are reducing after increasing;The provinces that belong to three regional cultivated land areas most change between the adjacent two stages,but frequent cross level changes are less.(4)In 2015,cultivated land protection economic compensation zoning results in China is surplus areas include Inner Mongolia,Liaoning,Jilin,Heilongjiang,Yunnan,Gansu,Ningxia and Xinjiang,balance areas include Shanxi,Anhui,Guangxi,Chongqing,Sichuan,Guizhou,Tibet and Shaanxi,deficit areas include Beijing,Tianjin,Hebei,Shanghai,Jiangsu,Zhejiang,Fujian,Jiangxi,Shandong,Henan,Hubei,Hunan,Guangdong,Hainan and Qinghai.(5)By comparing the partition results under food security and dual perspective,because of the impact of its per capita arable land ecological profit and loss,provinces belong to balance area or surplus area under food security show changing into balance area and deficit area in the comprehensive partition.(6)Three regional cultivated land areas are overall distribution range and location have no big change,cultivated land surplus area mainly distributed in the northeastern and northwestern inland regions,and cultivated land balance area distributed in the central region from north to south,but cultivated land deficit area distributed in the eastern and southeastern regions.