Speciation Changes of Cadmium in Mangrove (Kandelia candel (L.)) Rhizosphere Sediments

被引：0
作者：
Liu Jingchun
Yan Chongling
Zhang Ruifeng
Lu Haoliang
Qin Guangqiu
机构：
[1] Xiamen University,School of Life Sciences
来源：
Bulletin of Environmental Contamination and Toxicology | 2008年 / 80卷
关键词：
Cadmium; (L.); Rhizosphere; Speciation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The speciation distribution of cadmium (Cd) in mangrove (Kandelia candel (L.) Druce) rhizosphere sediment was investigated after different contents of Cd being loaded. The study results indicated that root induced changes of Cd bioavailability in the rhizosphere. Exchangeable and carbonate bound Cd in the rhizosphere sediments were lower than these in the bulk sediments, whilst an increase in Fe–Mn oxides bound and O.M/sulfide bound fractions occurred in the rhizosphere sediment. Increased levels of Cd in sediments resulted in higher Cd concentrations in mangrove plants, and the order of accumulation was: roots > hypocotyls > stems and leaves.
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页码：231 / 236
页数：5
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