As a condition to the extending of any benefits under this chapter to, or the performance of work upon, any lands not owned or controlled by this State or one of its agencies the commissioners may require contributions in money, services, materials or otherwise to any operations conferring such benefits and may require landowners and occupiers to enter into and perform such agreements or covenants as to the permanent use of such lands as will tend to prevent or control erosion and prevent floodwater and sediment damage thereon.