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Phosphorus and copper leaching from dredged sediment applied on a sandy loam soil: column study
- Source :
-
Chemosphere . Dec2003, Vol. 53 Issue 9, p1179. 9p. - Publication Year :
- 2003
-
Abstract
- In this paper, downward movement of phosphorus and copper as dredged sediment applied on sandy loam soil was studied by column leaching experiments. Three sediment application rate, (i.e., 1, 2 and 5-cm depth of sediments) were applied to the top of the soil columns. Two and a half months leaching experiments were conducted, which include a 15-day un-watered period. Concentrations of phosphorus and copper in the leachate and the vertical distribution of Olsen-P and diethylenetriaminepentaacetic acid (DTPA) extractable Cu in the soil columns were determined. The results showed that, un-watered period could increase the downward movements of phosphorus and copper. Sediment application significantly increased Olsen-P concentration in the top 15 cm of the soil columns, but has not significantly affected that in the deeper soil layer. The 1-cm depth sediment treatment did not increase the DTPA extractable Cu concentration in the whole soil column. The 5-cm depth sediment treatment, however, significant increased the DTPA extractable Cu in the deeper soil layers. This study suggested that the application of dredged sediment laden with P and Cu on sandy loam soil might cause the significant downward movement of phosphorus and copper. [Copyright &y& Elsevier]
- Subjects :
- *PHOSPHORUS
*COPPER
*LEACHING
*ATTENTION
*RESEARCH
Subjects
Details
- Language :
- English
- ISSN :
- 00456535
- Volume :
- 53
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Chemosphere
- Publication Type :
- Academic Journal
- Accession number :
- 10952101
- Full Text :
- https://doi.org/10.1016/S0045-6535(03)00610-6