Risks and solving strategies of suitability evaluation on mining land reclamation based on the mine scale

[Objective] This paper, from the aspect of mine scale, reveals the risk of multi-suitability selection in reclamation direction and structure, under the current preparation and presentation system and in the link of suitability evaluation. [Method] This paper uses the method of extreme conditions to make evaluation on suitability of intended damaged land. [Result] There is multi-suitability on the reclamation scheme of damaged land. Reclamation obligees choose those with high economic value, while reclamation obligors choose those with less investment and easy for reclamation. Land reclamation confronts the risk that the formation of reclamation scheme is dominated by those reclamation obligors. [Suggestion] Establish the subjective formation system, alternative system and the public participation system in the whole course about land reclamation and improve social, economic and ecological benefits.