RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2005, Vol. 14 >> Issue (6): 731-734.

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EFFECT OF SCIRPUS MARIQUETER ON PHOSPHOROUS DISTRIBUTION IN EAST CHONGMING INTERTIDAL SEDIMENTS

WANG Qing, LIU Min, HOU Li-jun, OU Dong-ni, LIU Qiao-mei, YU Jie   

  • Received:2005-01-25 Revised:2005-05-17 Online:2005-11-20
  • Contact: WANG Qing

Abstract: The effect of Scirpus mariqueter on phosphorous distribution in intertidal sediments was examined by measuring the phosphorous concentration in nearroot, meanroot and farroot sediments at different depths in three cores, with application of the theory of rhizospherical microbe. The results of the examine indicated that Scirpus mariqueter disturbed the phosphorous distribution by drawing phosphate from sediments and microbial degradation which formed the horizontal and vertical concentrational grads. The purification rate of phosphorous by uptake of Scirpus mariqueter may be 16.7~46.1 mg·cm-2·d-1.

Key words: Phosphorus, distribution, Scirpus mariqueter, intertidal sediments, purification rate

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