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Chinese Journal of Applied Ecology ›› 1994, Vol. 5 ›› Issue (1): 52-56.

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Ecological study on vegetation reconstruction at tailings siteⅠ.Effect of lead -zinc tailings on seed germination

Zhang Zhiquan, Lan Chongyu   

  1. Zhongshan University, Guangzhou 510275
  • Received:1992-11-16 Revised:1993-06-07 Online:1994-01-25 Published:1994-01-25

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Abstract: Under laboratory condition,the seeds of trees,crops and grasses can all germinate in lead-zinc tailings.Their germination rates are similar with those in non-polluted soil,but many of them are lower than control.No dead seedlings are found within 30 days.In comparison with control,the plant height is decreased by 28.4%, compound leaf number by 34.1%,and'the biomass by 52.6%.

Key words: Lead-zinc tailings, Seed germination, Vegetation reconstruction, spatial variation, thermal property., diurnal change, stem temperature