Compartmentalization of potentially hazardous elements in macrophytes: Insights into capacity and efficiency of accumulation

被引:47
作者
Bonanno, Giuseppe [1 ]
Vymazal, Jan [2 ]
机构
[1] Univ Catania, Dept Biol Geol & Environm Sci, Via Antonino Longo 19, I-95125 Catania, Italy
[2] Czech Univ Life Sci Prague, Fac Environm Sci, Kamycka 129, Prague 16521 6, Czech Republic
关键词
Wetlands; Trace elements; Aquatic plants; Accumulation; Pollution control; Phytoremediation; HEAVY-METAL PHYTOREMEDIATION; TRIN EX STEUDEL; PHRAGMITES-AUSTRALIS; CONSTRUCTED WETLANDS; ARUNDO-DONAX; WASTE-WATER; CONTAMINATED SITES; TYPHA-DOMINGENSIS; AQUATIC PLANTS; COMMON REED;
D O I
10.1016/j.gexplo.2017.06.018
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
This study investigated the accumulation of various elements in six species of macrophytes differing in biomass size, anatomy, life form and ecology: Phragmites australis, Arundo donax, Typha domingensis, Apium nodifiorwn, Nasturtium officinale, and Zannichellia peltata. In particular, the concentrations of Al, As, Cd, Cr, Cu, Hg, Mn, Ni, Pb and Zn were analyzed in sediments and in different plant tissues. Results showed that the highest element concentrations are accumulated in underground organs, especially roots. Macrophytes showed also a general tendency for trace elements phytostabilization. The grass P. australis performed better than the other macrophytes in terms of capacity and efficiency of trace elements accumulation. This study found that species with a greater biomass size have generally higher element concentrations, but this does not necessarily imply a better performance in element accumulation. Knowing capacity and efficiency of elements accumulation in plant species can help to reduce the risk of contamination in the environment.
引用
收藏
页码:22 / 30
页数:9
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