Abstract
Total mercury concentration of typical wetland plants was analyzed in this paper. There were great differences of total mercury concentration among different plants: moss>hydrophyte>segde>herbage>shrub. Total mercury concentrations show an increasing trend from vascular plants to bryophytes, and from dry to wet lands. The mercury concentration of wetland plants was higher than that of crops. The wetland soil was the source of mercury in the air close to the ground, so it affected the concentration of mercury in the plant. In different parts of a plant, mercury concentration was in the order of: dead stand>root>leaf>stem. Mercury concentration increased at the initial stage and decreased in the end of the growing season. According to the mercury content and biomass, mercury stock of plants was 39.4µg/m2 above ground in Calamagrostis angustifolia wetland and 35.8µg/m2 and Carex lasiocarpa wetland.
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Foundation item: Supported by the National Natural Science Foundation of China (No. 40071072) and the Important Research Feild Project of Chinese Academy of Sciences (No. KZCX2-302)
Biography: LIU Ru-hai (1975–), male, a native of Tengzhou City of Shangdong Province, Ph. D., specialized in the pollutants’ behavior in environments and their control
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Liu, Rh., Wang, Qc., Wang, Y. et al. Distribution of mercury in typical wetland plants in the Sanjiang plain. Chin. Geograph.Sc. 13, 242–246 (2003). https://doi.org/10.1007/s11769-003-0024-5
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DOI: https://doi.org/10.1007/s11769-003-0024-5