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Content Provider | SpringerLink |
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Author | Pang, Hong Jiao Lyu, Shuang Shuang Chen, Xue Gang Jin, Ai Min Loh, Pei Sun Li, Fei Jiang, Yan Yang, Xian Hui Yan, Kang Kang Lou, Zhang Hua |
Copyright Year | 2017 |
Abstract | In order to study the heavy metal accumulation and distribution in the roots, stems, and leaves of Spartina alterniflora, we collected S. alterniflora samples and the associated sediments along three transects at the Andong tidal flat, Hangzhou Bay. Co, Ni, Cd, Pb, Cu, and Zn were mainly accumulated in the aerial parts (stems and leaves) of the plants, and their distributions depended on their mobility and their roles during the metabolism processes of S. alterniflora. The concentrations of Cu, Zn, Cd, Hg, and Pb were significantly enhanced with the increasing of heavy metal concentrations in the sediments, while those of Co and Ni remained relatively constant. Bioaccumulation factors results showed that the serious heavy metal contamination in the sediments from the transect A may overwhelm the accumulation capability of the plants. In addition, the physicochemical properties of the sediments and the pore water therein also play a role in the heavy metal concentrations and accumulations in the plants, because they can influence the behaviors and bioavailabilities of heavy metals during nutrition and bioaccumulation processes of the plants. The sediments with vegetation did not show significantly decreased heavy metal concentration with respect to the unvegetated sediments, although the plants did absorb heavy metals from the sediments. Principal component analysis and correlation analyses indicated that Co–Ni, Cu–Cd–Hg behaved coherently during accumulation, which may be ascribed to their similar accumulation mechanisms. This work provided essential information on the heavy metal accumulation by plants in a tidal flat, which will be useful for the environmental control through phytoremediation at estuaries. |
Starting Page | 1 |
Ending Page | 14 |
Page Count | 14 |
File Format | |
ISSN | 18666280 |
Journal | Environmental Earth Sciences |
Volume Number | 76 |
Issue Number | 17 |
e-ISSN | 18666299 |
Language | English |
Publisher | Springer Berlin Heidelberg |
Publisher Date | 2017-09-07 |
Publisher Place | Berlin, Heidelberg |
Access Restriction | Subscribed |
Subject Keyword | Heavy metals Accumulation Spartina alterniflora Sediment Estuary Hangzhou Bay Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences |
Content Type | Text |
Resource Type | Article |
Subject | Global and Planetary Change Geology Soil Science Pollution Water Science and Technology Environmental Chemistry Earth-Surface Processes |
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