HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (11) Citing Articles via Google Scholar Google Scholar Articles by Kleinman, P. J. A. Articles by McDowell, R. W. Search for Related Content PubMed Articles by Kleinman, P. J. A. Articles by McDowell, R. W. GeoRef GeoRef Citation Agricola Articles by Kleinman, P. J. A. Articles by McDowell, R. W. Related Collections Other Environmental Contamination Phosphorus Pedology

DIVISION S-5—PEDOLOGY

Using Soil Phosphorus Profile Data to Assess Phosphorus Leaching Potential in Manured Soils

^a USDA-ARS, Pasture Systems and Watershed Management Research Unit, Curtin Road, University Park, PA 16802-3702
^b Dep. Natural Resource Sciences and Landscape Architecture, Univ. Maryland, College Park, MD 20742

* Corresponding author (pjk9{at}psu.edu)

Transport of P by subsurface flow pathways can be an important mechanism of P transfer from land to water, particularly in manured soils that are artificially drained. This study was conducted to determine whether detailed description and interpretation of soil P profile data provide adequate insight into P leaching potential. Evidence of P translocation within soil profiles of a tile-drained Buchanan (fine-loamy, mixed, semiactive, mesic Aquic Fragiudult)-Hartleton (loamy-skeletal, mixed, active, mesic Typic Hapludults) catena was assessed by measuring oxalate-extractable P, P sorption saturation, Mehlich-3 P, water-extractable P in bulk and clay film samples obtained from individual horizons. Tile-drain monitoring and column leaching experiments were conducted to evaluate interpretations derived from soil P profile data. Soil P fractions were not correlated with P losses in lysimeter studies, indicating the limited potential of using soil profile P data for quantitative prediction of leaching losses. Application of manure to the soil surface resulted in significant increases in leachate P concentrations from the lysimeters. Soil profile P data did, however, provide some evidence of long-term P leaching. While bulk horizon samples did not indicate significant long-term P translocation to soil depths corresponding with artificial drainage, some clay film samples had significantly elevated oxalate P, P sorption saturation and Mehlich-3 P at lower depths. Elevated P concentrations in clay films may be associated with preferential transport of P along soil macropores, although, not all clay films sampled in this study were necessarily associated with active macropores. Thus, soil P profile data appear to provide limited insight into P leaching potential.

Abbreviations: Al_ox, oxalate-extractable Al • DRP, dissolved reactive P • Fe_ox, oxalate-extractable Fe • P_ox, oxalate- extractable P • P_sat, P sorption saturation • PVC, polyvinyl Cl • TP, total P

This article has been cited by other articles:

				E. O. Young and R. D. Briggs Phosphorus Concentrations in Soil and Subsurface Water: A Field Study among Cropland and Riparian Buffers J. Environ. Qual., January 4, 2008; 37(1): 69 - 78. [Abstract] [Full Text] [PDF]

				M. Chrysostome, V. D. Nair, W. G. Harris, and R. D. Rhue Laboratory Validation of Soil Phosphorus Storage Capacity Predictions for Use in Risk Assessment Soil Sci. Soc. Am. J., August 9, 2007; 71(5): 1564 - 1569. [Abstract] [Full Text] [PDF]

				T. Page, P. M. Haygarth, K. J. Beven, A. Joynes, T. Butler, C. Keeler, J. Freer, P. N. Owens, and G. A. Wood Spatial Variability of Soil Phosphorus in Relation to the Topographic Index and Critical Source Areas: Sampling for Assessing Risk to Water Quality J. Environ. Qual., November 7, 2005; 34(6): 2263 - 2277. [Abstract] [Full Text] [PDF]

				M. E. Bechmann, P. J. A. Kleinman, A. N. Sharpley, and L. S. Saporito Freeze-Thaw Effects on Phosphorus Loss in Runoff from Manured and Catch-Cropped Soils J. Environ. Qual., November 7, 2005; 34(6): 2301 - 2309. [Abstract] [Full Text] [PDF]

				J. S. Butler and F. J. Coale Phosphorus Leaching in Manure-Amended Atlantic Coastal Plain Soils J. Environ. Qual., January 1, 2005; 34(1): 370 - 381. [Abstract] [Full Text] [PDF]

				A. Sharpley and P. Kleinman Effect of Rainfall Simulator and Plot Scale on Overland Flow and Phosphorus Transport J. Environ. Qual., November 1, 2003; 32(6): 2172 - 2179. [Abstract] [Full Text] [PDF]