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Sökning: WFRF:(Bertassoli D. J. Jr.) > (2019) > Carbon dioxide (CO2...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00006346naa a2200541 4500
001oai:DiVA.org:umu-164397
003SwePub
008191111s2019 | |||||||||||000 ||eng|
009oai:DiVA.org:liu-161146
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1643972 URI
0247 a https://doi.org/10.5194/bg-16-3527-20192 DOI
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1611462 URI
040 a (SwePub)umud (SwePub)liu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a de Araujo, Kleiton R.u Univ Fed Para, Brazil4 aut
2451 0a Carbon dioxide (CO2) concentrations and emission in the newly constructed Belo Monte hydropower complex in the Xingu River, Amazonia
264 c 2019-09-18
264 1a Gottingen :b Copernicus Gesellschaft MBH,c 2019
338 a electronic2 rdacarrier
500 a Funding Agencies|FAPESPFundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [16/02656-9, 2016/11141-2]; CNPqNational Council for Scientific and Technological Development (CNPq) [304727/2017-2]; CAPESCAPES [PPGBC-2017]
520 a The Belo Monte hydropower complex located in the Xingu River is the largest run-of-the-river (ROR) hydroelectric system in the world and has one of the highest energy production capacities among dams. Its construction received significant media attention due to its potential social and environmental impacts. It is composed of two ROR reservoirs: the Xingu Reservoir (XR) in the Xingu's main branch and the Intermediate Reservoir (IR), an artificial reservoir fed by waters diverted from the Xingu River with longer water residence time compared to XR. We aimed to evaluate spatiotemporal variations in CO2 partial pressure (pCO(2)) and CO2 fluxes (FCO2) during the first 2 years after the Xingu River impoundment under the hypothesis that each reservoir has contrasting FCO2 and pCO(2) as vegetation clearing reduces flooded area emissions. Time of the year had a significant influence on pCO(2) with the highest average values observed during the high-water season. Spatial heterogeneity throughout the entire study area was observed for pCO(2) during both low-and high-water seasons. FCO2, on the other hand, only showed significant spatial heterogeneity during the high-water period. FCO2 (0.90 +/- 0.47 and 1.08 +/- 0.62 mu mol m(2) d(-1) for XR and IR, respectively) and pCO(2) (1647 +/- 698 and 1676 +/- 323 mu atm for XR and IR, respectively) measured during the high-water season were on the same order of magnitude as previous observations in other Amazonian clearwater rivers unaffected by impoundment during the same season. In contrast, during the low-water season FCO2 (0.69 +/- 0.28 and 7.32 +/- 4.07 mu mol m(2) d(-1) for XR and IR, respectively) and pCO(2) (839 +/- 646 and 1797 +/- 354 mu atm for XR and IR, respectively) in IR were an order of magnitude higher than literature FCO2 observations in clearwater rivers with naturally flowing waters. When CO2 emissions are compared between reservoirs, IR emissions were 90% higher than values from the XR during low-water season, reinforcing the clear influence of reservoir characteristics on CO2 emissions. Based on our observations in the Belo Monte hydropower complex, CO2 emissions from ROR reservoirs to the atmosphere are in the range of natural Amazonian rivers. However, the associated reservoir (IR) may exceed natural river emission rates due to the preimpounding vegetation influence. Since many reservoirs are still planned to be constructed in the Amazon and throughout the world, it is critical to evaluate the implications of reservoir traits on FCO2 over their entire life cycle in order to improve estimates of CO2 emissions per kilowatt for hydropower projects planned for tropical rivers.
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 Biologix Ekologi0 (SwePub)106112 hsv//swe
650 7a NATURAL SCIENCESx Biological Sciencesx Ecology0 (SwePub)106112 hsv//eng
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Geologi0 (SwePub)105042 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Geology0 (SwePub)105042 hsv//eng
650 7a TEKNIK OCH TEKNOLOGIERx Samhällsbyggnadsteknikx Vattenteknik0 (SwePub)201072 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Civil Engineeringx Water Engineering0 (SwePub)201072 hsv//eng
7001 a Sawakuchi, Henrique Oliveirau Linköpings universitet,Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Piracicaba, Brazil,Tema Miljöförändring,Filosofiska fakulteten,Univ Sao Paulo, Brazil; Umea Univ, Sweden4 aut0 (Swepub:liu)henol98
7001 a Bertassoli, Dailson J., Jr.u Univ Sao Paulo, Brazil4 aut
7001 a Sawakuchi, Andre O.u Univ Fed Para, Brazil; Univ Sao Paulo, Brazil4 aut
7001 a da Silva, Karina D.u Univ Fed Para, Brazil; Univ Fed Para, Brazil4 aut
7001 a Vieira, Thiago B.u Univ Fed Para, Brazil; Univ Fed Para, Brazil4 aut
7001 a Ward, Nicholas D.u Pacific Northwest Natl Lab, WA 98382 USA; Univ Washington, WA 98195 USA4 aut
7001 a Pereira, Tatiana S.u Univ Fed Para, Brazil; Univ Fed Para, Brazil4 aut
7102 a Univ Fed Para, Brazilb Institutionen för ekologi, miljö och geovetenskap4 org
7730 t Biogeosciencesd Gottingen : Copernicus Gesellschaft MBHg 16:18, s. 3527-3542q 16:18<3527-3542x 1726-4170x 1726-4189
8564 u https://doi.org/10.5194/bg-16-3527-2019y Fulltext
8564 u https://umu.diva-portal.org/smash/get/diva2:1369379/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print
8564 u https://bg.copernicus.org/articles/16/3527/2019/bg-16-3527-2019.pdf
8564 u https://liu.diva-portal.org/smash/get/diva2:1365780/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-164397
8564 8u https://doi.org/10.5194/bg-16-3527-2019
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-161146

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