It is hereby declared to be the policy of this state to provide for the reclamation and conservation of land subjected to surface disturbance by mining and thereby to preserve natural resources, to encourage the productive use of such lands after mining, to aid in the protection of wildlife and aquatic resources, to encourage the planting of trees, grasses and other vegetation, to establish recreational, home and industrial sites, to protect and perpetuate the taxable value of property, to aid in the prevention of erosion, landslides, floods and the pollution of waters and air, to protect the natural beauty and aesthetic values in the affected areas of this state, and to protect and promote the health, safety and general welfare of the people of this state.