Abstract:

In order to probe the problem of the spatial distribution of grain production in China,the method of virtual land analysis and comparison were used to diagnose it.The results are as follows:Firstly,the index of Per capita virtual land in regional food products by rural population was used to measure the spatial layout of food production in China,it was found that there are notable regional discrepancy of spatial layout of food production in China,and the highvalue areas are concentrated in the northeast,Inner Mongolia,Yangtze River and north of Southern Hills.Second,an evaluating index system including 7 indices are established,which mainly consists of 4 aspects:Water and land resources(particularly land),natural disasters and so on to quantitatively evaluate the suitability of food production in China.The evaluating results show that the suitability of food production in China also have notable regional discrepancy,which appears the lows of the value of the east is higher than that of the west.And highvalue regions mainly focus on the northeast,HuangHuaiHai,median China,south China and southwest,lowvalue regions mainly focus on northwest,north China,and southeast.Finally,an index of food production coordination was build to diagnose the layout of food production in China,it was found that the food production are intensive in 11 provinces in the north China,and the food production are thin in 16 provinces in the south China.The method used in this paper is innovative,but there also have some obvious deficiencies in this article such as the index system of suitability of food production.The research results and conclusions are deserved further improved.