Vegetation dynamics during plant rehabilition in degraded mined land of large opencast coal mine within loess area

Habitat reconstruction and revegetation are the cores of ecology reconstruction in Opencast Coal Mine within Loess Areas and revegetation is guarantee. Artificial vegetation from 1985 to 2001 in Antaibao Coal Mine Land was studied with field investigation and statistical analysis. The results show that the components of artificial vegetation in this area changed greatly, that is from simple to complex, then reaching dynamic equilibrium. By comparing growths circumstances of the same vegetation in different deployed models and influences each other, some successful models of artificial vegetation were found: Robinia pseudoacacia and Pinus tabulaeformis and Caragana korshinskii, Robinia pseudoacacia and Pinus tabulaeformis, Robinia pseudoacacia and Hippophae rhamnoides,single Robinia pseudoacaci. Shannon-Wiener,Simpson and PW were used to analysis artifical vegetation in Degraded Mined Land, and the succession directions of artificial vegetation were suggested: Robinia pseudoacacia to Robinia pseudoacacia, Hippophae rhamnoides to Hippophae rhamnoides,Hippophae rhamnoides and Robinia pseudoacacia to Robinia pseudoacacia,Rrobinia pseudoacacia and Pinus tabulaeformis to Robinia pseudoacacia and Pinus tabulaeformis, Rrobinia pseudoacacia and Pinus tabulaeformis and Caragana korshinskii to Robinia pseudoacacia and Pinus tabulaeformis and Caragana korshinskii.