Characteristics of the soil seed bank with different recovery measures on opencast mine dump

A study was conducted on the soil seed banks of five recovery measures at Haizhou opencast mine dump using seed germination method.The study showed that there were 16 plant species belonging to 5 families,16 genus,with annuals as dominant species.Low similarities were observed between soil seed bank and standing vegetation,and between the seed banks at different sites.The species and density of soil seed bank varied with reclamation time,reclamation model,and site condition.An appropriate reclamation model would improve the self-renewal ability of soil seed bank and the stability of dump ecosystem,which were of importance for the land reclamation and ecological rehabilitation at Haizhou opencast coal mine dump.