| In order to accelerate the vegetation ecological restoration in a Glauber’s salt slag dump under high salt stress, Jiaozishan tunnel waste dump and its surrounding environment area were selected as the study area, the dominant species, community structure, biomass and biodiversity were compared and analyzed by sampling survey. The results showed that the pH value of the soil in the slag dump was 8.51 ～ 9.26, the mass ratio of soluble salt was 5.12 g/kg ～ 38.45 g/kg, belonging to a high salt and weak alkaline environment. There were 17 species of plants found in the slag dump, belonging to 9 families and 16 genera, mainly herbaceous plants, accounting for 76.47% of the total species. The vegetation ecological restoration in the slag dump was dominated by Legumes, Gramineae and Compositae,accounting for 64.71% of the total species. The test area with the largest biomass per unit area and species richness index was the guest soil area blocked by mulching. This paper tries to put forward the arbor-shrub-grass vegetation configuration mode of Broussonetia papyrifera (Linnaeus) L’Heritier.+ Leucaena leucocephala(Lam.) de Wit.+ Melilotus officinalis (L.) Pall. + Neyraudia reynaudiana(Kunth)Keng.+ Agave americana L.+ Pueraria lobata(Willd.) Ohwi. for vegetation ecological restoration. |
