Any owner or owners or the accredited representative of any owner or owners of forest lands subject to the provisions of this chapter, shall upon request, be granted a hearing before the board, or an appropriate executive committee thereof, on any subject pertaining to the activities of the director of the department of lands or of said board affecting his or their property: provided, that no request for a hearing before the board shall have the effect of suspending the operations of the director of the department of lands or any fire warden undertaken pursuant to the provisions of this chapter, but, upon such hearing, the board may terminate such operations if found unreasonable.