Abstract:

As one of the important agricultural production bases in Jiangsu Province,the economy of Taizhou develops very quickly,meanwhile the basic agricultural land is in danger of being occupied.From the viewpoint of food security in Jiangsu, a number of agricultural lands should be kept in Taizhou on the bases of scientific analyses of present cultivated land.In this paper,it was estimated that the need of basic agricultural land was about 327×104 hm2.According to the ratio of 85% as protection level, about 26×104~30×104 hm2 cultivated land should be regarded as suitable agricultural land.Using grid of 1 km×1 km, we selected two basic levels standing for production ability and developmental pressure to evaluate the suitability of cultivated land in Taizhou. According to the priority of suitability, we can distribute cultivated land into different grids and optimize the spatial distribution of agricultural land.The result shows that most of suitable cultivated land will be distributed in Xinghua in 2020,and the ratio is over 60 percent,while in the buildup area of Taizhou,the ratio is quite low,no more than 3 percent,with the process of industrialization.