A new method to measure effective soil solution concentration predicts copper availability to plants
Article Abstract:
Copper concentrations in 29 different soils from the UK, Chile, and China, and the plant Lepidium heterophyllum grown in these soils, are measured by EDTA extraction. DGT measurements are taken in the soil to determine metal concentrations, while plant materials are measured with an inductively coupled plasma atomic emission spectrometer (ICP-AES).
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 2001
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Acid/base, copper binding, and Cu(superscript2+)/H(superscript+) exchange properties of a soil humic acid, an experimental and modeling study
Article Abstract:
Creating a mathematical model for determining the ability of humic acid to absorb copper is the basis of this article. Researchers extracted humic acid from a loam sample, and subjected to various situations to determine binding rates. With the resulting data, data from various mathematical models were compared with the data. However, the model fails to produce data consistent with observed data at low copper levels. Even so, the model does work well for a single ionic strength.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1999
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