The rental of agricultural land achieved the large-scale and intensive using in the farmland;it is also a prerequisite for realization of modern agriculture and food security.Nevertheless,non-agricultural and non-food phenomenon of new agricultural bodies have been constructed new threat to the food security.Therefore,the paper constructed constraint mechanism to ensure food security from the functional areas of food production category management,production systems and other aspects of the task decomposition,and put forward to the incentive mechanism from the social services,financial subsidi...
