Study on Ecological Reclamation of the Deserted Quarries in Jiangyin Municipality

Effect of two ecological reclamation techniques on top soil and vegetation at the deserted quarries on the Mount Huashan in Jiangyin Municipality was studied by the field survey. The results showed that the top soil in the project area was reduced and depressed to a certain extent in comparison to the original soil depth, there was no significance difference (p＞0.05) in the soil depth preserved, while there was significant difference (p＜0.05) in the plant root biomass between the two project areas. It was showed that the preserved soil depth and root biomass of the plants were significantly influenced by the slope aspect. The order of the preserved soil depth, fresh root biomass, dried root biomass was as the upper slope > mid slope > lower slope. The soil on the project slopes was stabilized by vigorous vegetation, some native plants had grown there, the species richness indices, diversity indices and evenness indices were high in the both project areas. The results indicated that both of the vegetation growing concrete technique (VGC) and seeding spraying technology (PMS）techniques were suitable to the project, which could restore the vegetation and landscape rapidly in the steep slope area where the directive guest soil planting measure was hard to be implemented.