Abstract: Cultivated land resource managers design a series of system to constraint and guide the behavior of cultivated land resource occupants,but driven by interests and competition,the problem of functional loss of cultivated land that threatens the safety of cultivated land resources occurs frequently.In addition to the cultivated land non-agricultural-transformation that has received much attention,in recent years,the hidden functional loss of cultivated land such as pseudo-ecological,non-grain growing,over-utilization of high-quality cultivated land and marginalization of cultivated land has an inadmissible impact on the quantity,quality and ecology of cultivated land.Facing the severe situation of functional loss of cultivated land,it is necessary to improve the management tools of cultivated land protection,such as by strengthening the constraints on the cultivated land resource occupants,establishing a performance payment mechanism for cultivated land protection,promoting at high levels and sharing the management information of cultivated land resources,exerting the comprehensive benefits of cultivated land,and nudging sustainable intensive agricultural development to improve the performance of cultivated land protection,thereby effectively guaranteeing cultivated land resource security.

Key words: cultivated land, cultivated land protection, cultivated land management, cultivated land resource security, interest-driven, competition-driven