The lessee, or assignee of any lease leased for grazing purposes, shall not use the land for any other purpose than that expressed in the lease. However, the lessee, or assignee, may surrender the lease to the department and request the department to issue an agricultural lease in lieu of the original lease. The department is authorized to issue a new lieu lease for the unexpired portion of the term of the lease surrendered upon payment of the fixed rental based on an appraisal of the land for agricultural purposes. Under the lieu lease the lessee shall be permitted to clear, plow, and cultivate the lands as in the case of an original lease for agricultural purposes.