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Hydrology Research Vol 43 No 4 pp 352–358 © IWA Publishing 2012 doi:10.2166/nh.2012.117 The influence of drained peat soils on diffuse nitrogen pollution of surface waterAnatoli Vassiljev and Irina BlinovaTallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia E-mail: avasil@staff.ttu.eeNational Institute of Chemical Physics and Biophysics, Akadeemia tee 23, Tallinn 12618, Estonia ABSTRACT Eutrophication caused by excess nutrient loads is the main problem for Estonian surface waters. Even after the drastic decrease in the application of mineral fertilizers at the beginning of the 1990s, the concentrations of nitrogen and phosphorus in many rivers remained at undesirable and unexpectedly high levels. The investigation showed that drained peat soils are an important source of nitrogen export to the surface waters. Runoff of nitrogen from drained peat soils is, on average, 1.5-fold higher than from agricultural lands in Estonia. Keywords: diffuse pollution; nutrients; peat soils; river water quality eProduct: Buy this article for £24.00 (IWA MEMBER PRICE: £18.00) All prices include VAT. For customers where VAT should not be applied, the VAT amount will be removed upon payment |
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