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 Similar articles in PubMed 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 (30) Citing Articles via Google Scholar Google Scholar Articles by Uusitalo, R. Articles by Lilja, T. Search for Related Content PubMed PubMed Citation Articles by Uusitalo, R. Articles by Lilja, T. GeoRef GeoRef Citation Agricola Articles by Uusitalo, R. Articles by Lilja, T. Related Collections Vadose Zone Processes and Chemical Transport Water Quality Nutrient Management

TECHNICAL REPORT
VADOSE ZONE PROCESSES AND CHEMICAL TRANSPORT

Particulate Phosphorus and Sediment in Surface Runoff and Drainflow from Clayey Soils

^a Agricultural Research Centre of Finland, FIN-31600 Jokioinen, Finland
^b Dep. of Quaternary Geology, Univ. of Turku, FIN-20014 Turku, Finland

Corresponding author (risto.uusitalo{at}mtt.fi)

Received for publication February 28, 2000. Recent work has shown that a significant portion of the total loss of phosphorus (P) from agricultural soils may occur via subsurface drainflow. The aim of this study was to compare the concentrations of different P forms in surface and subsurface runoff, and to assess the potential algal availability of particulate phosphorus (PP) in runoff waters. The material consisted of 91 water-sample pairs (surface runoff vs. subsurface drainage waters) from two artificially drained clayey soils (a Typic Cryaquept and an Aeric Cryaquept) and was analyzed for total suspended solids (TSS), total phosphorus (TP), dissolved molybdate-reactive phophorus (DRP), and anion exchange resin–extractable phosphorus (AER-P). On the basis of these determinations, we calculated the concentrations of PP, desorbable particulate phosphorus (PPi), and particulate unavailable (nondesorbable) phosphorus (PUP). Some water samples and the soils were also analyzed for ¹³⁷Cs activity and particle-size distribution. The major P fraction in the waters studied was PP and, on average, only 7% of it was desorbable by AER. However, a mean of 47% of potentially bioavailable P (AER-P) consisted of PPi. The suspended soil material carried by drainflow contained as much PPi (47–79 mg kg^-1) as did the surface runoff sediment (45–82 mg kg^-1). The runoff sediments were enriched in clay-sized particles and ¹³⁷Cs by a factor of about two relative to the surface soils. Our results show that desorbable PP derived from topsoil may be as important a contributor to potentially algal-available P as DRP in both surface and subsurface runoff from clayey soils.

Abbreviations: AER, anion exchange resin • AER-P, anion exchange resin–extractable phosphorus • DRP, dissolved molybdate-reactive phosphorus • ER, enrichment ratio • PP, particulate phosphorus • PPi, desorbable particulate phosphorus • PUP, particulate unavailable (nondesorbable) phosphorus • TP, total phosphorus • TSS, total suspended solids

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]

				Z. L. He, M. K. Zhang, P. J. Stoffella, X. E. Yang, and D. J. Banks Phosphorus Concentrations and Loads in Runoff Water under Crop Production Soil Sci. Soc. Am. J., August 22, 2006; 70(5): 1807 - 1816. [Abstract] [Full Text] [PDF]

				K. Schelde, L. W. de Jonge, C. Kjaergaard, M. Laegdsmand, and G. H. Rubaek Effects of Manure Application and Plowing on Transport of Colloids and Phosphorus to Tile Drains Vadose Zone J., March 8, 2006; 5(1): 445 - 458. [Abstract] [Full Text] [PDF]

				R. G. Myers, A. N. Sharpley, S. J. Thien, and G. M. Pierzynski Ion-Sink Phosphorus Extraction Methods Applied on 24 Soils from the Continental USA Soil Sci. Soc. Am. J., March 1, 2005; 69(2): 511 - 521. [Abstract] [Full Text] [PDF]

				R. W. McDowell and R. J. Wilcock Particulate Phosphorus Transport within Stream Flow of an Agricultural Catchment J. Environ. Qual., November 1, 2004; 33(6): 2111 - 2121. [Abstract] [Full Text] [PDF]

				L. W. de Jonge, C. Kjaergaard, and P. Moldrup Colloids and Colloid-Facilitated Transport of Contaminants in Soils: An Introduction Vadose Zone J., May 1, 2004; 3(2): 321 - 325. [Abstract] [Full Text] [PDF]

				R. Uusitalo, E. Turtola, M. Puustinen, M. Paasonen-Kivekas, and J. Uusi-Kamppa Contribution of Particulate Phosphorus to Runoff Phosphorus Bioavailability J. Environ. Qual., November 1, 2003; 32(6): 2007 - 2016. [Abstract] [Full Text] [PDF]

				I. C. Daverede, A. N. Kravchenko, R. G. Hoeft, E. D. Nafziger, D. G. Bullock, J. J. Warren, and L. C. Gonzini Phosphorus Runoff: Effect of Tillage and Soil Phosphorus Levels J. Environ. Qual., July 1, 2003; 32(4): 1436 - 1444. [Abstract] [Full Text] [PDF]

				M. K. Zhang, Z. L. He, D. V. Calvert, P. J. Stoffella, X. E. Yang, and Y. C. Li Phosphorus and Heavy Metal Attachment and Release in Sandy Soil Aggregate Fractions Soil Sci. Soc. Am. J., July 1, 2003; 67(4): 1158 - 1167. [Abstract] [Full Text] [PDF]