Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.
Environ Sci Pollut Res Int. 2013 Oct;20(10):6999-7008. doi: 10.1007/s11356-013-1854-z. Epub 2013 Jun 9.
Metal concentrations (Al, Ba, Ca, K, Li, Mg, Na, Se, Sr and Ti) in submerged macrophytes and corresponding water and sediments were studied in 24 eutrophic lakes along the middle and lower reaches of the Yangtze River (China). Results showed that these eutrophic lakes have high metal concentrations in both water and sediments because of human activities. Average concentrations of Al and Na in tissues of submerged macrophytes were very high in sampled eutrophic lakes. By comparison, Ceratophyllum demersum and Najas marina accumulated more metals (e.g. Ba, Ca, K, Mg, Na, Sr and Ti). Strong positive correlations were found between metal concentrations in tissues of submerged macrophytes, probably because of co-accumulation of metals. The concentrations of Li, Mg, Na and Sr in tissues of submerged macrophytes significantly correlated with their corresponding water values, but not sediment values.
研究了长江中下游 24 个富营养化湖泊中沉水植物及其相应水体和沉积物中的金属浓度（Al、Ba、Ca、K、Li、Mg、Na、Se、Sr 和 Ti）。结果表明，由于人类活动，这些富营养化湖泊的水体和沉积物中金属浓度都很高。在所采样的富营养化湖泊中，沉水植物组织中 Al 和 Na 的平均浓度非常高。相比之下，金鱼藻和狸藻积累了更多的金属（如 Ba、Ca、K、Mg、Na、Sr 和 Ti）。沉水植物组织中的金属浓度之间存在很强的正相关关系，这可能是由于金属的共同积累。沉水植物组织中 Li、Mg、Na 和 Sr 的浓度与相应的水体值显著相关，但与沉积物值不相关。
