dc.contributor.author |
Turner, Benjamin L. |
en |
dc.contributor.author |
Newman, Susan |
en |
dc.contributor.author |
Cheesman, Alexander W. |
en |
dc.contributor.author |
Ramesh, Reddy K. |
en |
dc.date.accessioned |
2009-01-02T16:56:16Z |
|
dc.date.available |
2009-01-02T16:56:16Z |
|
dc.date.issued |
2007 |
|
dc.identifier.citation |
Turner, Benjamin L., Newman, Susan, Cheesman, Alexander W., and Ramesh, Reddy K. 2007. "<a href="https%3A%2F%2Frepository.si.edu%2Fhandle%2F10088%2F6671">Sample pretreatment and phosphorus speciation in wetland soils</a>." <em>Soil and Water Management Conservation</em>. 71 (5):1538–1546. |
en |
dc.identifier.uri |
http://hdl.handle.net/10088/6671 |
|
dc.description.abstract |
We assessed the infl uence of sample pretreatment on the amounts and forms of P extracted in NaOH"CEDTA (ethylenediamine tetraacetic acid) from a series of contrasting wetland soils from the Florida Everglades. Samples of unconsolidated benthic fl oc and underlying soil (0"C10 cm) were extracted either fresh (overnight refrigeration only), air dried (10 d at ¡«30¡aC), or frozen at "C80¡aC and lyophilized (¡«48 h), before extraction and solution 31P nuclear magnetic resonance (NMR) spectroscopy. Signifi cant differences in total P extraction following pretreatment were detected for one out of four benthic fl oc samples and three out of four soil samples, although the changes were inconsistent: in two cases the total P extraction increased, while in two others it decreased. Assessment of the P composition by solution 31P NMR spectroscopy revealed differences among treatments, although these were mostly within the range of error associated with replicate analyses; however, DNA was not detected in a fresh sample of calcareous benthic fl oc, despite representing an important component of the organic P extracted from dried samples. The apparent sample-specifi c nature of the changes confi rms the importance of carefully assessing pretreatment effects in studies of soil organic P in wetlands. |
en |
dc.format.extent |
305909 bytes |
|
dc.format.mimetype |
application/pdf |
|
dc.language.iso |
en_US |
|
dc.relation.ispartof |
Soil and Water Management Conservation |
en |
dc.title |
Sample pretreatment and phosphorus speciation in wetland soils |
en |
dc.type |
Journal Article |
en |
dc.identifier.srbnumber |
55700 |
|
rft.jtitle |
Soil and Water Management Conservation |
|
rft.volume |
71 |
|
rft.issue |
5 |
|
rft.spage |
1538 |
|
rft.epage |
1546 |
|
dc.description.SIUnit |
NMR |
en |
dc.description.SIUnit |
STRI |
en |
dc.citation.spage |
1538 |
|
dc.citation.epage |
1546 |
|