Title: Dissolved phosphorus transport from soil to surface water in catchments with different land use
Authors: Verheyen, Dries ×
Van Gaelen, Nele
Ronchi, Benedicta
Batelaan, Okke
Struyf, Eric
Govers, Gerard
Merckx, Roel
Diels, Jan #
Issue Date: 15-Feb-2015
Publisher: Royal Swedish Academy of Sciences
Series Title: Ambio vol:44 issue:2 Supplement pages:228-240
Abstract: Diffuse phosphorus (P) export from agricultural land to surface waters is a significant environmental
problem. It is critical to determine the natural background P losses from diffuse sources, but their
identification and quantification is difficult. In this study, three headwater catchments with differing land
use (arable, pasture and forest) were monitored for 3 years to quantify exports of dissolved (<0.45 μm)
reactive P and total dissolved P. Mean total P exports from the arable catchment ranged between 0.08 and
0.28 kg ha−1 year−1. Compared with the reference condition (forest), arable land and pasture exported up to
11-fold more dissolved P. The contribution of dissolved (<0.45 μm) unreactive P was low to negligible in
every catchment. Agricultural practices can exert large pressures on surface waters that are controlled by
hydrological factors. Adapting policy to cope with these factors is needed for lowering these pressures in
the future.
ISSN: 0044-7447
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division Soil and Water Management
Division of Geology
Division of Geography & Tourism
× corresponding author
# (joint) last author

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