Several basic scientific issues related to mined land remediation
Based on analyzing the concepts relevant to land reclamation,mined land remediation is proposed to act as the higher hierarchy for discipline development instead of mined land reclamation,which covers restoration,reclamation and rehabilitation.In terms of ecological resilience,the roles of natural restoration and manual intervention are discussed and a kind of self restoration model (SRM) for mined land ecosystem induced by manual intervention is proposed;the identification and remediation of the critical restrictive factors are also emphasized.Further studies on the acceptable conditions and remediation targets for SRM are introduced.Whichever preventive measures before mining or remediation measures after mining to be taken are up to the mining methods,remediation cost and ecological service value.In general situation considering nowadays mining technology,preventive measures before mining and low damage techniques for open-pit mining should be taken as essential methods.After integrated mining,stripping,disposal and reclamation into a whole,resoiling becomes into the key step for successful mined land remediation.On the other hand,preventive measures before mining are only used for protecting special surface buildings or most valuable ecological zones impacted by underground mining.
land remediationland restorationland rehabilitationland reclamation
NETL
NSTL
万方数据
维普
