RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2005, Vol. 14 >> Issue (1): 88-93.

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PLANT COLONIZATION ON COPPER TAILINGS AND THE CHANGE OF THE PHYSIOCHEMISTRY PROPERTIES OF SUBSTRATE IN TONGLING CITY, ANHUI PROVINCE

TIAN Sheng-ni(1，2)，SUN Qing-ye(3)，WANG Zheng-feng(1), PENG Shao-lin(1)，XIA Han-ping(1)   

  • Received:1900-01-01 Revised:1900-01-01 Online:2005-01-22
  • Contact: TIAN Sheng-ni

Abstract: By field investigation and laboratory analysis, the natural colonizing plants on the copper tailings and the physiochemistry properties of substrate where several pioneer communities were colonized on copper tailings derelict land in Tongling City were studied by the authors. The results showed that there were 122 species of plants, belonging to 96 genera, 30 families, which colonized on the several main copper tailings ponds. The herb plants of Gramineae, Compositae and Leguminosae are the natural pioneer plant colonizing on the copper tailings, with characteristics of stoloniferous or subterraneous stems or nitrogen fixation ability or with little seeds propagated to colonize and grow successfully on the copper tailings. The physiochemistry properties of the substrates for the plant dominant communities were improved obviously than the spots of the nonreclaimation and acid areas, namely the pH values were ameliorated and the concentration of nutrient matters such as total N,total P and organic matter increased and the concentrat of the heavy metals such as Cu decreased.

Key words: copper tailings, colonizing plant, physiochemistry property, reclamation

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