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Characters of the vegetations with different restoration age on a mining site of Shouyun Iron Ore Mine, Beijing.

YAN De-min1, ZHAO Fang-ying1,2**, SUN Jian-xin1   

  1. (1College of Forestry, Beijing Forestry University, Beijing 100083, China; 2Beijing Fenglinyuan Ecological Landscape Design Research Institute Co., Beijing 100083, China)
  • Online:2013-01-10 Published:2013-01-10

Abstract: In 1997-2011, a mining site of Shouyun Iron Ore Mine in Beijing was re-vegetated by the measures of covering with foreign topsoil (C) and its combination with ecological vegetation carpet (C+E). This paper investigated the characters of the vegetations with different restoration age on this site, in comparison with the undisturbed sites around this site (CK). The re-vegetation site was dominated by the species of Poaceae, Legume, and Compositae, accounting for 58% of the total species identified. In treatment C+E, the abundance, species richness, and Shannon index of the vegetations were all similar to those of the vegetations in CK, and higher than those in treatment C. The above- and under-ground biomasses of the vegetations in treatment C+E were significantly higher than those in treatment C, and had no significant differences with CK. In treatment C+E, the litter biomass of the vegetations in the 6th year was similar to that in CK. It was suggested that the rapid rehabilitation of vegetation on the mining site had significance for taking the advantage of the potential ecological functioning of the ecological conservation area in Beijing, and provide a reference case for the vegetation rehabilitation of similar mine areas.