Mercury enrichment in Brassica napus in response to elevated atmospheric mercury concentrations
- Resource Type
- Academic Journal
- Authors
- Chunhao Dai; Pufeng Qin; Zhangwei Wang; Jian Chen; Xianshan Zhang; Si Luo
- Source
- 环境科学与工程前沿 / Frontiers of Environmental Science & Engineering. 11(1):45-52
- Subject
- Open top chamber
Gaseous elemental mercury (GEM)
Soil Mercury
Brassica napus
- Language
- Chinese
- ISSN
- 2095-2201
Mercury enrichment in response to elevated atmospheric mercury concentrations in the organs of rape (Brassica napus) was investigated using an open top chamber fumigation experiment and a soil mercury enriched cultivation experiment.Results indicate that the mercury concentration in leaves and stems showed a significant variation under different concentrations of mercury in atmospheric and soil experiments while the concentration of mercury in roots,seeds and seed coats showed no significant variation under different atmospheric mercury concentrations.Using the function relation established by the experiment,results for atmospheric mercury sources in rape field biomass showed that atmospheric sources accounted for at least 81.81% of mercury in rape leaves and 32.29% of mercury in the stems.Therefore,mercury in the aboveground biomass predominantly derives from the absorption of atmospheric mercury.