Total mercury concentration of typical wetland plants was analyzed in thispaper. There were great differences of total mercury concentration among different plants:moss>hydrophyte>sedge>herbage>shrub. Tota...Total mercury concentration of typical wetland plants was analyzed in thispaper. There were great differences of total mercury concentration among different plants:moss>hydrophyte>sedge>herbage>shrub. Total mercury concentrations show an increasing trend fromvascular plants to bryophytes, and from dry to wet lands. The mercury concentration of wetlandplants was higher than that of crops. The wetland soil was the source of mercury in the air close tothe ground, so it affected the concentration of mercury in the plant. In different parts of aplant, mercury concentration was in the order of: dead stand>root>leaf>stem. Mercury concentrationincreased at the initial stage and decreased in the end of the growing season. According to themercury content and biomass, mercury stock of plants was 39.4μg/m^2 above ground in Calamagrostisangustifolia wetland and 35.8μg /m^2 in Carex lasiocarpa wetland.展开更多
文摘Total mercury concentration of typical wetland plants was analyzed in thispaper. There were great differences of total mercury concentration among different plants:moss>hydrophyte>sedge>herbage>shrub. Total mercury concentrations show an increasing trend fromvascular plants to bryophytes, and from dry to wet lands. The mercury concentration of wetlandplants was higher than that of crops. The wetland soil was the source of mercury in the air close tothe ground, so it affected the concentration of mercury in the plant. In different parts of aplant, mercury concentration was in the order of: dead stand>root>leaf>stem. Mercury concentrationincreased at the initial stage and decreased in the end of the growing season. According to themercury content and biomass, mercury stock of plants was 39.4μg/m^2 above ground in Calamagrostisangustifolia wetland and 35.8μg /m^2 in Carex lasiocarpa wetland.
