Notwithstanding any other provision of law, lands which were used for agriculture or managed forestland before acquisition by the department must be managed and the timber harvested to provide optimum fish and wildlife habitat. The department must use Best Management Practices as prescribed by the South Carolina Forestry Commission, or its successor, in managing and harvesting timber. If the department uses Best Management Practices when managing or harvesting timber, there is no adverse effect on historical properties or archeological sites.