Temporal Trends in Phosphorus Concentrations and Losses from Agricultural Monitoring Sites in Latvia

The Baltic Sea is the youngest sea on our planet, the environment of the sea is considered to be unique and fragile. It is affected by various human activities resulting in the impairment of water quality. Riverine nutrient (nitrogen and phosphorus) loads are among the major causes of eutrophication...

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Autores principales:	Siksnane Ieva, Lagzdins Ainis
Formato:	article
Lenguaje:	EN
Publicado:	Sciendo 2021
Materias:	agricultural catchments concentrations monitoring losses phosphorus runoff temporal trends Renewable energy sources TJ807-830
Acceso en línea:	https://doaj.org/article/a85693541a0b421ab88b6167e3331913
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spelling	oai:doaj.org-article:a85693541a0b421ab88b6167e33319132021-12-05T14:11:10ZTemporal Trends in Phosphorus Concentrations and Losses from Agricultural Monitoring Sites in Latvia2255-883710.2478/rtuect-2021-0016https://doaj.org/article/a85693541a0b421ab88b6167e33319132021-01-01T00:00:00Zhttps://doi.org/10.2478/rtuect-2021-0016https://doaj.org/toc/2255-8837The Baltic Sea is the youngest sea on our planet, the environment of the sea is considered to be unique and fragile. It is affected by various human activities resulting in the impairment of water quality. Riverine nutrient (nitrogen and phosphorus) loads are among the major causes of eutrophication of the Baltic Sea. This study examines temporal trends in water discharge, total phosphorus (TP) and orthophosphate-phosphorus (PO4-P) concentrations and losses from three agricultural runoff monitoring sites in Latvia including Berze, Mellupite, and Vienziemite. The annual datasets of TP and PO4-P concentrations and losses were tested for statistical trends using a nonparametric test - the Mann-Kendall trend test. The timeframe of this study was from 1995 until 2018. The results show a large variety of annual mean concentrations and losses of TP and PO4-P in the study period. No statistically significant trend was detected for TP losses. Meanwhile, statistically significant downward trends were observed for TP concentrations in four out of six study sites and in two study sites for PO4-P concentrations.Siksnane IevaLagzdins AinisSciendoarticleagricultural catchmentsconcentrationsmonitoringlossesphosphorusrunofftemporal trendsRenewable energy sourcesTJ807-830ENEnvironmental and Climate Technologies, Vol 25, Iss 1, Pp 233-242 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	agricultural catchments concentrations monitoring losses phosphorus runoff temporal trends Renewable energy sources TJ807-830
spellingShingle	agricultural catchments concentrations monitoring losses phosphorus runoff temporal trends Renewable energy sources TJ807-830 Siksnane Ieva Lagzdins Ainis Temporal Trends in Phosphorus Concentrations and Losses from Agricultural Monitoring Sites in Latvia
description	The Baltic Sea is the youngest sea on our planet, the environment of the sea is considered to be unique and fragile. It is affected by various human activities resulting in the impairment of water quality. Riverine nutrient (nitrogen and phosphorus) loads are among the major causes of eutrophication of the Baltic Sea. This study examines temporal trends in water discharge, total phosphorus (TP) and orthophosphate-phosphorus (PO4-P) concentrations and losses from three agricultural runoff monitoring sites in Latvia including Berze, Mellupite, and Vienziemite. The annual datasets of TP and PO4-P concentrations and losses were tested for statistical trends using a nonparametric test - the Mann-Kendall trend test. The timeframe of this study was from 1995 until 2018. The results show a large variety of annual mean concentrations and losses of TP and PO4-P in the study period. No statistically significant trend was detected for TP losses. Meanwhile, statistically significant downward trends were observed for TP concentrations in four out of six study sites and in two study sites for PO4-P concentrations.
format	article
author	Siksnane Ieva Lagzdins Ainis
author_facet	Siksnane Ieva Lagzdins Ainis
author_sort	Siksnane Ieva
title	Temporal Trends in Phosphorus Concentrations and Losses from Agricultural Monitoring Sites in Latvia
title_short	Temporal Trends in Phosphorus Concentrations and Losses from Agricultural Monitoring Sites in Latvia
title_full	Temporal Trends in Phosphorus Concentrations and Losses from Agricultural Monitoring Sites in Latvia
title_fullStr	Temporal Trends in Phosphorus Concentrations and Losses from Agricultural Monitoring Sites in Latvia
title_full_unstemmed	Temporal Trends in Phosphorus Concentrations and Losses from Agricultural Monitoring Sites in Latvia
title_sort	temporal trends in phosphorus concentrations and losses from agricultural monitoring sites in latvia
publisher	Sciendo
publishDate	2021
url	https://doaj.org/article/a85693541a0b421ab88b6167e3331913
work_keys_str_mv	AT siksnaneieva temporaltrendsinphosphorusconcentrationsandlossesfromagriculturalmonitoringsitesinlatvia AT lagzdinsainis temporaltrendsinphosphorusconcentrationsandlossesfromagriculturalmonitoringsitesinlatvia
_version_	1718371314729746432

Temporal Trends in Phosphorus Concentrations and Losses from Agricultural Monitoring Sites in Latvia

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