There shall be a fund known as the Alabama Forestry Commission Fund. This fund shall consist of all occupational licenses and privilege taxes imposed by the state for engaging in any business dealing with timber or timber products and all fines and forfeitures arising under the provisions of this chapter, and all appropriations made by the State of Alabama from its General Funds in furtherance of the purposes of this chapter shall be paid into said Alabama Forestry Commission Fund. There shall also be paid into said Alabama Forestry Commission Fund all sums accruing to the State Forestry Commission from whatsoever source. This fund shall be used and expended by the State Forestry Commission in accordance with the terms of the gift, bequest, appropriation or donation from which said moneys are derived and, in absence of any such terms, shall be expended by the State Forestry Commission in furtherance of any of the provisions of this chapter. All necessary expenses of the State Forestry Commission shall be payable out of said fund on the requisition of the State Forester; provided, that nothing herein contained shall be construed to require the diversion of any funds from any particular purpose for which they were collected, allotted or budgeted if the effect of such diversion would penalize the state in retaining or securing any federal funds or federal assistance, and no funds shall be withdrawn nor expended for any purpose whatsoever unless the same shall have been allotted and budgeted in accordance with the provisions of Article 4 of Chapter 4 of Title 41 of this Code and only in the amounts and for the purposes provided by the Legislature in the general appropriation bill.