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Sökning: WFRF:(Shurpali Narasinha J) > Tundra landscape he...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00005667naa a2200781 4500
001oai:DiVA.org:su-162106
003SwePub
008181115s2018 | |||||||||||000 ||eng|
009oai:lup.lub.lu.se:044df730-3a5f-4641-a15e-fce16a4f0bc0
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1621062 URI
0247 a https://doi.org/10.1111/gcb.144212 DOI
0247 a https://lup.lub.lu.se/record/044df730-3a5f-4641-a15e-fce16a4f0bc02 URI
040 a (SwePub)sud (SwePub)lu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Treat, Claire C.u University of Eastern Finland4 aut
2451 0a Tundra landscape heterogeneity, not interannual variability, controls the decadal regional carbon balance in the Western Russian Arctic
264 c 2018-09-09
264 1b Wiley,c 2018
338 a print2 rdacarrier
520 a Across the Arctic, the net ecosystem carbon (C) balance of tundra ecosystems is highly uncertain due to substantial temporal variability of C fluxes and to landscape heterogeneity. We modeled both carbon dioxide (CO2) and methane (CH4) fluxes for the dominant land cover types in a similar to 100-km(2) sub-Arctic tundra region in northeast European Russia for the period of 2006-2015 using process-based biogeochemical models. Modeled net annual CO2 fluxes ranged from --300 g C m(-2) year(-1) [net uptake] in a willow fen to 3 g Cm-2 year(-1) [net source] in dry lichen tundra. Modeled annual CH4 emissions ranged from -0.2 to 22.3 g Cm-2 year(-1) at a peat plateau site and a willow fen site, respectively. Interannual variability over the decade was relatively small (20%-25%) in comparison with variability among the land cover types (150%). Using high-resolution land cover classification, the region was a net sink of atmospheric CO2 across most land cover types but a net source of CH4 to the atmosphere due to high emissions from permafrost-free fens. Using a lower resolution for land cover classification resulted in a 20%-65% underestimation of regional CH4 flux relative to high-resolution classification and smaller (10%) overestimation of regional CO2 uptake due to the underestimation of wetland area by 60%. The relative fraction of uplands versus wetlands was key to determining the net regional C balance at this and other Arctic tundra sites because wetlands were hot spots for C cycling in Arctic tundra ecosystems.
650 7a NATURVETENSKAPx Biologi0 (SwePub)1062 hsv//swe
650 7a NATURAL SCIENCESx Biological Sciences0 (SwePub)1062 hsv//eng
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskap0 (SwePub)1052 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciences0 (SwePub)1052 hsv//eng
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Naturgeografi0 (SwePub)105072 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Physical Geography0 (SwePub)105072 hsv//eng
653 a ecosystem modeling
653 a methane
653 a net ecosystem CO2 exchange
653 a peatland
653 a permafrost
653 a regional carbon balance
653 a Russia
653 a Tundra
653 a ecosystem modeling
653 a methane
653 a net ecosystem CO exchange
653 a peatland
653 a permafrost
653 a regional carbon balance
653 a Russia
653 a Tundra
7001 a Marushchak, Maija E.u University of Eastern Finland4 aut
7001 a Voigt, Carolinau University of Eastern Finland4 aut
7001 a Zhang, Yuu Natural Resources Canada4 aut
7001 a Tan, Zeliu Pacific Northwest National Laboratory,Purdue University4 aut
7001 a Zhuang, Qianlaiu Purdue University4 aut
7001 a Virtanen, Tarmo A.u University of Helsinki4 aut
7001 a Räsänen, Aleksiu University of Helsinki,Norwegian University of Science and Technology4 aut
7001 a Biasi, Christinau University of Eastern Finland4 aut
7001 a Hugelius, Gustafu Stockholm University,Stockholms universitet,Institutionen för naturgeografi4 aut0 (Swepub:su)chuge
7001 a Kaverin, Dmitryu P.N. Lebedev Physical Institute of the Russian Academy of Sciences4 aut
7001 a Miller, Paul A.u Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,MERGE: ModElling the Regional and Global Earth system,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science4 aut0 (Swepub:lu)nate-pum
7001 a Stendel, Martinu Danish Meteorological Institute4 aut
7001 a Romanovsky, Vladimiru University of Alaska Fairbanks4 aut
7001 a Rivkin, Felixu Lomonosov Moscow State University4 aut
7001 a Martikainen, Pertti J.u University of Eastern Finland4 aut
7001 a Shurpali, Narasinha J.u University of Eastern Finland4 aut
7102 a University of Eastern Finlandb Natural Resources Canada4 org
7730 t Global Change Biologyd : Wileyg 24:11, s. 5188-5204q 24:11<5188-5204x 1354-1013x 1365-2486
8564 u https://rss.onlinelibrary.wiley.com/doi/am-pdf/10.1111/gcb.14421
8564 u http://dx.doi.org/10.1111/gcb.14421y FULLTEXT
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-162106
8564 8u https://doi.org/10.1111/gcb.14421
8564 8u https://lup.lub.lu.se/record/044df730-3a5f-4641-a15e-fce16a4f0bc0

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