A field methodology for quantifying phosphorus transfer and delivery to streams in first order agricultural catchments

Deasy, Clare E. and Heathwaite, A. Louise and Brazier, R. E. (2008) A field methodology for quantifying phosphorus transfer and delivery to streams in first order agricultural catchments. Journal of Hydrology, 350 (3-4). pp. 329-338.

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Abstract

An understanding of the relative importance of different hydrological pathways in phosphorus delivery from land to water is currently constrained by a lack of appropriate methods available to quantify the delivery process. New monitoring tools are needed which will provide a framework for understanding phosphorus (P) transfer and delivery at a range of scales in agricultural catchments. A field methodology incorporating the techniques of event-based, on-site observation and sampling within a flexible, non-plot based structure is described and applied to a first order stream catchment in Southern England, UK. The results show that P transfers to the stream reach monitored were dominated by inputs from one field drain, and that overland flow inputs, despite being directly connected to the stream and containing higher P concentrations (maximum 3708 μg l−1), contributed less to the stream P flux. The processes of P transfer and delivery to the stream were complex, changing both within flow pathways and temporally over an event.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Hydrology
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/ge
Subjects:
ID Code:
31066
Deposited By:
Deposited On:
17 Dec 2009 13:52
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 06:48