References
- [1] Spiertz J. H. J. Nitrogen, sustainable agriculture and food security. A review. Agron. Sustain. Dev. 2010:30:43–55. https://doi.org/10.1051/agro:2008064
- [2] HELCOM Baltic Sea Action Plan 2021 update [Online]. [Accessed 10.03.2022]. Available: https://helcom.fi/media/publications/Baltic-Sea-Action-Plan-2021-update.pdf
- [3] Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000 establishing a framework for Community action in the field of water policy. Official Journal of European Union 2000: L 327/1
- [4] Environmental Policy Strategy for 2021 – 2027 [Online]. [Accessed 17.06.2022]. Available: https://www.varam.gov.lv/lv/media/25691/download
- [5] EEA Report No 7/2018 ‘European waters: Assessment of status and pressures 2018’ Latvia [Online]. [Accessed 20.06.2022]. Available: https://www.eea.europa.eu/publications/state-of-water
- [6] Øygarden L., Deelstra J., Lagzdins A., Bechmann M., Greipsland I., Kyllmar K., Povilaitis A., Iital A. Climate change and the potential effects on runoff and nitrogen losses in the Nordic – Baltic region. Agriculture Ecosystems & Environment 2014:198:114–126. https://doi.org/10.1016/j.agee.2014.06.025
- [7] Randall G. W., Mulla D. J. Nitrate Nitrogen in Surface Waters as Influenced by Climatic Conditions and Agricultural Practices. J. Environ. Quality 2001:30(2):337–344. https://doi.org/10.2134/jeq2001.302337x11285893
- [8] Kyllmar K., Carlson C., Gustafson A., Ulen B., Johansson H. Nutrient discharge from small agricultural catchments in Sweden: characterisation and trends. Agriculture, Ecosystems & Environment 2006:115(1–4):15–26. https://doi.org/10.1016/j.agee.2005.12.004
- [9] Bechmann M., Stålnacke P. Effect of policy-induced measures on suspended sediments and total phosphorus concentrations from three Norwegian agricultural catchments. Science of The Total Environment 2005:344:129–142. https://doi.org/0.1016/j.scitotenv.2005.02.01310.1016/j.scitotenv.2005.02.01315907514
- [10] Petersen R. J., Blicher-Mathiesen G., Rolighed J., Andersen H. E., Kronvang B. Three decades of regulation of agricultural nitrogen losses: Experiences from the Danish Agricultural Monitoring Program. Science of the Total Environment 2021:787:147619. https://doi.org/10.1016/j.scitotenv.2021.14761934000544
- [11] Deelstra J., Iital A., Povilaitis A., Kyllmar K., Greipsland I., Blicher-Mathiesen G., Jansons V., Koskiaho J., Lagzdins A. Hydrological pathways and nitrogen runoff in agricultural dominated catchments in Nordic and Baltic countries. Agriculture, Ecosystems & Environment 2014:195:211–219. https://doi.org/10.1016/j.agee.2014.06.007
- [12] Lagzdins A., Jansons V., Sudars R., Abramenko K. Scale issues for assessment of nutrient leaching from agricultural land in Latvia. Hydrology Research 2012:43(4):383–399. https://doi.org/10.2166/nh.2012.122
- [13] Geospatial information of Latvia University of Life Sciences and Technologies and State limited Liability Company ‘Latvian Environment, Geology and Meteorology Centre’
- [14] Climate in Latvia [Online]. [Accessed 01.03.2022]. Available: https://videscentrs.lvgmc.lv/lapas/latvijas-klimats
- [15] Mateus C., Potito A. Long-term trends in daily extreme air temperature indices in Ireland from 1885 to 2018. Whether and Climate Extremes 2022:36:100464. https://doi.org/10.1016/j.wace.2022.100464
- [16] Iwata Y., Hayashi M., Suzuki S., Hirota T., Hasegawa S. Effects of snow cover on soil freezing, water movement, and snowmelt infiltration: A paired plot experiment. Water Resources Research 2010:46(9):W09504. https://doi.org/10.1029/2009WR008070
- [17] Appiotti F., Krzelj M., Russo A., Ferretti M., Bastianini M., Marincioni F. A multidisciplinary study on the effects of climate change in the northern Adriatic Sea and the Marche region (central Italy). Regional Environmental Change 2007:14:2007–2024. https://doi.org/10.1007/s10113-013-0451-5
- [18] Siksnane I., Lagzdins A. Analysis of Precipitation and Runoff Conditions in Agricultural Runoff Monitoring Sites. Rural Sustainability Research 2018:39(334):26–31. https://doi.org/10.2478/plua-2018-0004
- [19] Lawniczak A. E., Zbierska J., Nowak B., Achtenberg K., Grześkowiak A., Kanas K. Impact of agriculture and land use on nitrate contamination in groundwater and running waters in central-west Poland. Environmental Monitoring and Assessment 2016:188:172. https://doi.org/10.1007/s10661-016-5167-9475760726887311
- [20] Siksnane I., Lagzdins A. Temporal Trends in Nitrogen Concentrations and Losses from Agricultural Monitoring Sites in Latvia. Environmental and Climate Technologies 2020:24(3):163–173. https://doi.org/10.2478/rtuect-2020-0094
- [21] Siksnane I., Lagzdins A. Temporal Trends in Phosphorus Concentrations and Losses from Agricultural Monitoring Sites in Latvia. Environmental and Climate Technologies 2021:25:233–242. https://doi.org/10.2478/rtuect-2021-0016