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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00005567naa a2200469 4500
001oai:slubar.slu.se:103074
003SwePub
008240410s2020 | |||||||||||000 ||eng|
0247 a https://res.slu.se/id/publ/1030742 URI
0247 a https://doi.org/10.1111/gcb.148122 DOI
040 a (SwePub)slu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Audet, Joachimu Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment,Aarhus University4 aut0 (Swepub:slu)107750
2451 0a Forest streams are important sources for nitrous oxide emissions - Nitrous oxide emissions from Swedish streams
264 c 2019-09-25
264 1b Wiley,c 2020
264 1b Wiley: 12 months,c 2024
520 a Streams and river networks are increasingly recognized as significant sources for the greenhouse gas nitrous oxide (N2O). N2O is a transformation product of nitrogenous compounds in soil, sediment and water. Agricultural areas are considered a particular hotspot for emissions because of the large input of nitrogen (N) fertilizers applied on arable land. However, there is little information on N2O emissions from forest streams although they constitute a major part of the total stream network globally. Here, we compiled N2O concentration data from low-order streams (~1,000 observations from 172 stream sites) covering a large geographical gradient in Sweden from the temperate to the boreal zone and representing catchments with various degrees of agriculture and forest coverage. Our results showed that agricultural and forest streams had comparable N2O concentrations of 1.6 +/- 2.1 and 1.3 +/- 1.8 mu g N/L, respectively (mean +/- SD) despite higher total N (TN) concentrations in agricultural streams (1,520 +/- 1,640 vs. 780 +/- 600 mu g N/L). Although clear patterns linking N2O concentrations and environmental variables were difficult to discern, the percent saturation of N2O in the streams was positively correlated with stream concentration of TN and negatively correlated with pH. We speculate that the apparent contradiction between lower TN concentration but similar N2O concentrations in forest streams than in agricultural streams is due to the low pH (<6) in forest soils and streams which affects denitrification and yields higher N2O emissions. An estimate of the N2O emission from low-order streams at the national scale revealed that ~1.8 x 10(9) g N2O-N are emitted annually in Sweden, with forest streams contributing about 80% of the total stream emission. Hence, our results provide evidence that forest streams can act as substantial N2O sources in the landscape with 800 x 10(9) g CO2-eq emitted annually in Sweden, equivalent to 25% of the total N2O emissions from the Swedish agricultural sector.
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Geokemi0 (SwePub)105062 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Geochemistry0 (SwePub)105062 hsv//eng
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Miljövetenskap0 (SwePub)105022 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Environmental Sciences0 (SwePub)105022 hsv//eng
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Klimatforskning0 (SwePub)105012 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Climate Research0 (SwePub)105012 hsv//eng
7001 a Bundschuh, Mircou Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment,University of Koblenz-Landau4 aut0 (Swepub:slu)93534
7001 a Feckler, Alexanderu Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment4 aut0 (Swepub:slu)101170
7001 a Laudon, Hjalmaru Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management4 aut0 (Swepub:slu)48717
7001 a Löfgren, Stefanu Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment4 aut0 (Swepub:slu)48060
7001 a Öquist, Matsu Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management4 aut0 (Swepub:slu)46781
7001 a Peacock, Michaelu Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment4 aut
7001 a Wallin, Marcusu Uppsala University4 aut0 (Swepub:slu)52221
7001 a Buffam, Ishiu University of Cincinnati4 aut0 (Swepub:slu)51861
7102 a Sveriges lantbruksuniversitetb Institutionen för vatten och miljö4 org
7102 a Sveriges lantbruksuniversitet
7730 t Global Change Biologyd : Wileyg 26, s. 629-641q 26<629-641x 1354-1013x 1365-2486
8564 u https://pub.epsilon.slu.se/id/eprint/16746/contentsx primaryx Raw objectx freey FULLTEXT
8564 u https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/gcb.14812
8564 8u https://res.slu.se/id/publ/103074
8564 8u https://doi.org/10.1111/gcb.14812

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