Cultivation suitability evaluation of cultivated land reserve resources based on restrictive factors—A case study in Yangjiang，Guangdong province

In order to exploit and utilize the reserve resources of cultivated land rationally，the reclaimed land and recoverable mining land in Yangjiang of Guangdong province were evaluated，through constructing the reserve evaluation index system of cultivated land，by leading factor“restrictive factor”evaluation method，from the natural environment conditions，the cultivated land reserve resources in Yangjiang were evaluated，the limiting factors of various kinds of unsuitable cultivation were also analyzed，suggestions for rational utilization of cultivated land reserve resources were put forward.