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Metal concentrations in aquatic macrophytes as influenced by soil and acidification

Water, Air, and Soil Pollution

5249_Sparling.pdf
By:
and
DOI: 10.1023/A:1005090224878

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Abstract

Bioavailability of metals to aquatic plants is dependent on many factors including ambient metal concentration, pH of soil or water, concentration of ligands, competition with other metals for binding sites, and mode of exposure. Plants may be exposed to metals through water, air, or soil, depending on growth form. This paper examines the influence of soil type under two regimens of water acidification on metal uptake by four species of aquatic macrophytes: smartweed (Polygonum sagittatum), burreed (Sparganium americanum), pondweed (Potamogeton diversifolius), and bladderwort (Utricularia vulgaris) in constructed, experimentally acidified wetlands. Soil types consisted of a comparatively high-metal clay or a lower-metal sandy loam. Each pond was either acidified to pH ca. 4.85.3 or allowed to remain circumneutral. Metal concentrations tended to be higher in the submerged bladderwort and pondweed than in the emergent burreed and smartweed. Soils were important to plant metal concentrations in all species, but especially in the emergents. Acidification influenced plant concentrations of some metals and was especially important in the submerged pondweed. Bioaccumulation of metals occurred for Mn, B, Sr, Ba, and Zn, compared to soil concentrations.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Metal concentrations in aquatic macrophytes as influenced by soil and acidification
Series title:
Water, Air, and Soil Pollution
DOI:
10.1023/A:1005090224878
Volume
108
Issue:
1-2
Year Published:
1998
Language:
English
Publisher:
Springer
Contributing office(s):
Patuxent Wildlife Research Center
Description:
203-221
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Water, Air, and Soil Pollution
First page:
203
Last page:
221
Number of Pages:
19