Gaming between Returning Cultivated Land to Forest and Grain Security

The area of cultivated land returned to forest have largely fluctuated in recent years,this has close relationship with current grain security problem in our country.Many people think that to guarantee the grain security,the step of returning cultivated land to forest should be slowed down.The article think that returning cultivated land to forest is not the major cause of the reduce of grain.The major causes are the reduce of cultivated land caused by the economic development and the adjust of planting structure,the reduce of yield per unit area.Returning cultivated land to forest not only affect grain security,but also enhance the probability of grain security.If we complete other relative the works at the same time,returning cultivated land to forest will not have a great influence to our country grain security.