The 30 years’ land reclamation and ecological restoration in China:review,rethinking and prospect

With the Stipulation on Land Reclamation being issued for 30 years,the paper reviewed the related policies,regulations,and achievements on theory,technology and education in the field of land reclamation and ecological restoration.Some mile-stone regulations and three particular theory and principle on mined land reclantion were introduced.It reviewed the progress of some techniques，such as monitoring and diagnoses,subsidend land reclamation,ecological restoration of coal waste piles and surface mined land reclamation.Some quantitative data on scientific and technology awards,published papers and training students in the field of land reclamation in the passed thirty years were also introduced in this paper.Based on the rethinking of the conception of reclamation and historic phases of reclamation,some important issues on policies and supervision，such as principle,responsibility,funds,regulatory mechanisms of land reclamation were rethought in this paper.The proplems on current reclamation technology for surface and underground coal mines were presented.Finally,the paper prospected some important techniques，such as monitoring and diagnosing,current mining and reclamation,prime farmland reclamation,eco-system restoration,abandoned mined land reclamation and supervision and management.