Nutrient losses from subsurface drainage systems in Latvia

References

• Apsīte E, Bakute A, Elferts D, Kurpniece L, Pallo I. 2011. Climate change impacts on river runoff in Latvia. Clim Res. 48:57–71.
   Web of Science ®Google Scholar
• Bakhsh A, Kanwar RS, Pederson C, Bailey TB. 2006. N-source effects on temporal distribution of NO3-N leaching losses to subsurface drainage water. Water Air Soil Pollut. 181:35–50.
   Web of Science ®Google Scholar
• [HELCOM] Baltic Marine Environment Protection Commission. 2007. HELCOM Baltic Sea action plan [Internet]. Krakow: Helsinki Commission [cited 2014 May 15]. Available from: http://helcom.fi/Documents/Baltic%20sea%20action%20plan/BSAP_Final.pdf
   Google Scholar
• [HELCOM] Baltic Marine Environment Protection Commission. 2009. Eutrophication in the Baltic Sea – An integrated thematic assessment of the effects of nutrient enrichment in the Baltic Sea region. Balt Sea Environ Proc. No. 115B.
   Google Scholar
• [HELCOM] Baltic Marine Environment Protection Commission. 2011. The Fifth Baltic Sea Pollution Load Compilation (PLC-5). Balt Sea Environ Proc. No. 128.
   Google Scholar
• Bechmann M, Eggestad HO, Vagstad N. 1998. Nitrogen balances and leaching in four agricultural catchments in southeastern Norway. Environ Pollut. 102:493–499.
   Web of Science ®Google Scholar
• Central Statistical Bureau of Latvia. 2010. On final results of Agricultural Census 2010 [Internet]. Riga: Central Statistical Bureau of Latvia [cited 2014 May 15]. Available from: http://www.csb.gov.lv/en/notikumi/final-results-agricultural-census-2010-32185.html
   Google Scholar
• Deelstra J, Abramenko K, Vagstad N, Jansons V. 2005. Scale issues, hydrological pathways, and nitrogen runoff from agriculture -results from the Mellupite catchment, Latvia. In: Srinivasan R, Jacobs J, Day D, Abbaspour K, editors. Proceedings of the 3rd International SWAT Conference; 2005 Jul 11–15; Zürich. Zürich (SUI): Swiss Federal Institute of Aquatic Science and Technology.
   Google Scholar
• Deelstra J, Iital A. 2008. The use of the flashiness index as a possible indicator for nutrient loss prediction in agricultural catchments. Boreal Environ Res. 13:209–221.
   Google Scholar
• Deelstra J, Iital A, Povilaitis A, Kyllmar K, Greipsland I, Blicher-Mathiesen G, Jansons V, Koskiaho J, Lagzdiņš A. 2014. Hydrological pathways and nitrogen runoff in agricultural dominated catchments in Nordic and Baltic countries. Agric Ecosyst Environ. 195:211–219.
   Web of Science ®Google Scholar
• Deelstra J, Oygarden L, Blankenberg AGB, Eggestad HO. 2011. Climate change and runoff from agricultural catchments in Norway. Int J Clim Change Strategies Manage. 3:345–360.
   Google Scholar
• Delpla I, Baurès E, Jung AV, Thomas O. 2011. Impacts of rainfall events on runoff water quality in an agricultural environment in temperate areas. Sci Total Environ. 409:1683–1688.
   Google Scholar
• Duchemin M, Hogue R. 2009. Reduction in agricultural non-point source pollution in the first year following establishment of an integrated grass/tree filter strip system in southern Quebec (Canada). Agric Ecosyst Environ. 131:85–97.
   Google Scholar
• EC (1991) Council Directive 91/676/EEC of 12 December 1991 concerning the protection of water against pollution caused by nitrates from agricultural sources. Off J Eur Commun. L 375:1–8.
   Google Scholar
• EC (2000) Directive 2000/60/EC of the European parliament and of the council of 23 October 2000 establishing a framework for the community action in the field of water policy. Off J Eur Commun. L 327:1–72.
   Google Scholar
• [FAO] Food and Agriculture Organization of the United Nations. 2006. Guidelines for soil description [Internet]. Rome: Food and Agriculture Organization of the United Nations [cited 2014 May 15]. Available from: ftp://ftp.fao.org/agl/agll/docs/guidel_soil_descr.pdf
   Google Scholar
• Gentry LE, David MB, Royer TV, Mitchell CA, Starks KM. 2007. Phosphorus transport pathways to streams in tile-drained agricultural watersheds. J Environ Qual. 36:408–441.
   PubMed Web of Science ®Google Scholar
• Gilliam JW, Baker JL, Reddy KR. 1999. Water quality effects of drainage in humid regions. In: Skaggs RW, Van Schilfgaarde J, editors. Agricultural drainage. Madison (WI): American Society of Agronomy; p. 801–830.
   Google Scholar
• Heathwaite AL, Johnes PJ, Peters NE. 1996. Trends in nutrients. Hydrol Processes. 10:263–293.
   Web of Science ®Google Scholar
• Helmers M, Christianson R, Brenneman G, Lockett D, Pederson C. 2012. Water table, drainage, and yield response to drainage water management in southeast Iowa. J Soil Water Conserv. 67:495–501.
   Web of Science ®Google Scholar
• Helsel DR, Hirsch RM. 2002. Statistical methods in water resources [Internet]. Techniques of water-resources investigations, Book 4, Chapter A3. Reston (VA): U.S. Geological Survey; [cited 2014 May 17]. Available from: http://pubs.usgs.gov/twri/twri4a3/#pdf
   Google Scholar
• Iital A, Stålnacke P, Deelstra J, Loigu E, Pihlak M. 2005. Effects of large-scale changes in emissions on nutrient concentrations in Estonian rivers in the Lake Peipsi drainage basin. J Hydrol. 304:261–273.
   Web of Science ®Google Scholar
• Jansons V, Busmanis P, Dzalbe I, Kirsteina D. 2003. Catchment and drainage field nitrogen balances and nitrogen loss in three agriculturally influenced Latvian watersheds. Eur J Agron. 20:173–179.
   Web of Science ®Google Scholar
• Kladivko EJ, Frankenberger JR, Jaynes DB, Meek DW, Jenkinson BJ, Faussey NR. 2004. Nitrate leaching to subsurface drains as affected by drain spacing and changes in crop production system. J Environ Qual. 33:1803–1813.
   PubMed Web of Science ®Google Scholar
• Klavins M, Briede A, Radionon V, Kokorite I, Frisk T. 2002. Long-term changes of the river runoff in Latvia. Boreal Environ Res. 7:447–456.
   Web of Science ®Google Scholar
• Kronvang B, Laubel A, Grant R. 1997. Suspended sediment and particulate phosphorus transport and delivery pathways in an arable catchment, Gelbaek Stream, Denmark. Hydrol Process. 11:627–642.
   Web of Science ®Google Scholar
• Kyllmar K, Carlsson C, Gustafson A, Ulen B, Johnsson H. 2006. Nutrient discharge from small agricultural catchments in Sweden: Characterisation and trends. Agric Ecosyst Environ. 115:15–26.
   Web of Science ®Google Scholar
• Lagzdiņš A, Jansons V, Sudars R, Abramenko K. 2012. Scale issues for assessment of nutrient loss from agricultural land in Latvia. Hydrol Res. 43:383–399.
   Web of Science ®Google Scholar
• Randall GW, Mulla DJ. 2001. Nitrate nitrogen in surface waters as influenced by climatic conditions and agricultural practices. J Environ Qual. 30:337–344.
   PubMed Web of Science ®Google Scholar
• [RBMP] River Basin Management Plans. 2009. River basin management plans [Internet]. Riga: Ministry of Environmental Protection and Regional Development of the Republic of Latvia [cited 2014 Sep 2]. Available from: http://www.varam.gov.lv/lat/darbibas_veidi/udens_aizsardziba_/upju_baseini/
   Google Scholar
• SAS Institute Inc. 2011. SAS/STAT® 9.3 user's guide. Cary (NC): SAS Institute Inc.
   Google Scholar
• Seņņikovs J, Bethers U. 2009. Statistical downscaling method of regional climate model results for hydrological modelling. In: Anderssen RS, Braddock RD, Newham LTH, editors. The 18th World IMACS Congress and MODSIM09 International Congress on Modelling and Simulation; 2009 Jul 13–17; Cairns. Modelling and Simulation Society of Australia and New Zealand and International Association for Mathematics and Computers in Simulation.
   Google Scholar
• Sileika AS, Gaigalis K, Kutra G, Smitiene A. 2005. Factors affecting N and P losses from small catchments (Lithuania). Environ Monit Assess. 102:359–374.
   PubMed Web of Science ®Google Scholar
• Šķiņķis C. 1986. Augšņu drenēš ana [Soil drainage]. Riga: Avots.
   Google Scholar
• Stålnacke P, Aakerøy PA, Blicher-Mathiesen G, Iital A, Jansons V, Koskiaho J, Kyllmar K, Lagzdiņš A, Pengerud A, Povilaitis A. 2014. Temporal trends in nitrogen concentrations and losses from agricultural catchments in the Nordic and Baltic countries. Agric Ecosyst Environ. doi:10.1016/j.agee.2014.03.028
   Google Scholar
• Stålnacke P, Grimvall A, Libiseller C, Laznik M, Kokorite I. 2003. Trends in nutrient concentrations in Latvian rivers and the response to the dramatic change in agriculture. J Hydrol. 283:184–205.
   Web of Science ®Google Scholar
• State Land Service of Latvia. 2014. Land report of the Republic of Latvia on 01.01.2014. Riga: State Land Service of Latvia.
   Google Scholar
• Strock JS, Porter PM, Russelle MP. 2004. Cover cropping to reduce nitrate loss through subsurface drainage in the northern US Corn Belt. J Environ Qual. 33:1010–1016.
   PubMed Web of Science ®Google Scholar
• Tiemeyer B, Kahle P, Lennartz B. 2006. Nutrient losses from artificially drained catchments in north-eastern Germany at different scales. Agric Water Manag. 85:47–57.
   Web of Science ®Google Scholar
• Ulén B. 2006. A simplified risk assessment for losses of dissolved reactive phosphorus through drainage pipes from agricultural soils. Acta Agric Scand, Section B Soil and Plant Sci. 56:307–314.
   Web of Science ®Google Scholar