The effect of land use in the catchment and meteorological conditions on the riverine transport of dissolved organic carbon into the Puck Lagoon (southern Baltic)

Dominika Saniewska , Karolina Gębka , Katarzyna Łukawska-Matuszewska , Magdalena Bełdowska , Agnieszka Wochna

Abstract

Dissolved organic carbon (DOC) concentration and fluxes from four rivers draining the catchment of the Puck Lagoon in southern Baltic are presented. Water samples from rivers and coastal zone close to the rivers’ mouth were collected from April 2015 to March 2017. DOC was measured using high temperature catalytic oxidation with an NDIR detection. DOC concentration in rivers as well as area specific load discharged to the lagoon reflected variations of land use along their course. Area specific load of DOC discharged by rivers with high proportion of forests, meadows, and pastures in the catchment was significantly higher as compared to rivers with catchment dominated by arable land. However, the main controlling factor of the total discharged loads of DOC was the water flow. The highest loads were observed during the downpour. That was due to the larger volumes of water transported with rivers and the higher concentration of DOC resulting from increased leaching from the catchment area. The obtained results are especially important in the light of climate change in the southern Baltic region. According to the forecasts, we can expect increased precipitation and flooding and consequently increased leaching from the catchment and transport of DOC to the sea via rivers.
Author Dominika Saniewska (FOG / IO / DMChEP)
Dominika Saniewska,,
- Division of Marine Chemistry and Environmental Protection
, Karolina Gębka (FOG / IO / DMChEP)
Karolina Gębka,,
- Division of Marine Chemistry and Environmental Protection
, Katarzyna Łukawska-Matuszewska (FOG / IO / DMChEP)
Katarzyna Łukawska-Matuszewska,,
- Division of Marine Chemistry and Environmental Protection
, Magdalena Bełdowska (FOG / IO / DMChEP)
Magdalena Bełdowska,,
- Division of Marine Chemistry and Environmental Protection
, Agnieszka Wochna (FOG / GIS)
Agnieszka Wochna,,
- GIS Center
Journal seriesEnvironmental Monitoring and Assessment, ISSN 0167-6369, (A 25 pkt)
Issue year2018
Vol190
No9
Pages 1-15
Publication size in sheets0.7
Keywords in EnglishDOC, freshwater discharge, watershed, precipitation, climate change
DOIDOI:10.1007/s10661-018-6857-2
URL https://doi.org/10.1007/s10661-018-6857-2
Languageen angielski
Score (nominal)25
ScoreMinisterial score = 25.0, 17-09-2018, ArticleFromJournal
Ministerial score (2013-2016) = 25.0, 17-09-2018, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 1.687 (2) - 2016=1.974 (5)
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