Total and Labile Phosphorus Concentrations as Influenced by Riparian Buffer Soil Properties

Journal of Environmental Quality
Eric O Young, Donald S Ross

Abstract

Riparian buffers can act as a phosphorus (P) source under active stream bank erosion. Using soil and landscape variables (soil series, drainage class, organic matter, and pH) to index P concentrations could improve P loss risk tools for buffers. The objectives of this study were (i) to determine if soil properties could predict total and labile P concentrations within a 10-ha riparian buffer and (ii) to quantify the degree of spatial dependence of P and related properties. Soil samples were taken in 15-cm increments to a depth of 60 cm using a grid ( = 71) from an established riparian buffer along the Rock River in Vermont. Total soil P (TP), plant-available P determined by Modified Morgan extraction (MM-P), pH, soil organic matter (SOM), soil texture, and select cations were measured. We found that TP (152-1536 mg P kg) and MM-P (0.4-14.6 mg kg) ranged widely, with distinct differences between soil series. Mean TP and MM-P were greater in alluvial and glaciolacustrine soils compared with glacial till. Across all samples, MM-P was weakly related to soil properties; however, total labile P (orthophosphate + organic P measured by ICP) and unreactive labile P (ICP-P - colorimetric-P) could both be predicted by SOM ( = 0.59 and 0.7...Continue Reading

References

Feb 24, 2001·Journal of Environmental Quality·E O Young, D S Ross
Apr 13, 2004·Journal of Environmental Quality·Gregory L Bruland, Curtis J Richardson
Mar 3, 2007·Journal of Environmental Quality·R W McDowell, R J Wilcock
Jan 8, 2008·Journal of Environmental Quality·Eric O Young, Russell D Briggs
Aug 26, 2009·Journal of Environmental Quality·Carl Christian HoffmannBrian Kronvang
Oct 31, 2009·Journal of Environmental Quality·Anthony R BudaGary W Feyereisen
Mar 1, 2012·Journal of Environmental Quality·Brian KronvangSøren E Larsen
Aug 13, 2013·Environmental Science & Technology·Helen P JarviePeter J A Kleinman
Nov 13, 2013·Journal of Environmental Quality·Andrew SharpleyPeter Kleinman
Dec 8, 2015·Journal of Environmental Quality·Eulaila R IsheeCharlotte R Ford

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Citations

Oct 8, 2019·Journal of Environmental Quality·Harald NeidhardtYvonne Oelmann
Jan 15, 2019·Journal of Environmental Quality·Vanesa L PerilloLiza E Lemieux
May 8, 2021·Journal of Environmental Quality·Vanesa L PerilloBeverley C Wemple

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