Carbon uptake in Eurasian boreal forests dominates the high-latitude net ecosystem carbon budget

Carbon uptake in Eurasian boreal forests dominates the high-latitude net ecosystem carbon budget

© 2023 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 29(2023), 7 vom: 17. Apr., Seite 1870-1889
1. Verfasser: Watts, Jennifer D (VerfasserIn)
Weitere Verfasser: Farina, Mary, Kimball, John S, Schiferl, Luke D, Liu, Zhihua, Arndt, Kyle A, Zona, Donatella, Ballantyne, Ashley, Euskirchen, Eugénie S, Parmentier, Frans-Jan W, Helbig, Manuel, Sonnentag, Oliver, Tagesson, Torbern, Rinne, Janne, Ikawa, Hiroki, Ueyama, Masahito, Kobayashi, Hideki, Sachs, Torsten, Nadeau, Daniel F, Kochendorfer, John, Jackowicz-Korczynski, Marcin, Virkkala, Anna, Aurela, Mika, Commane, Roisin, Byrne, Brendan, Birch, Leah, Johnson, Matthew S, Madani, Nima, Rogers, Brendan, Du, Jinyang, Endsley, Arthur, Savage, Kathleen, Poulter, Ben, Zhang, Zhen, Bruhwiler, Lori M, Miller, Charles E, Goetz, Scott, Oechel, Walter C
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article Arctic-boreal CH4 CO2 carbon budget remote sensing tundra wetland Carbon 7440-44-0 mehr... Carbon Dioxide 142M471B3J Methane OP0UW79H66
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520 |a © 2023 John Wiley & Sons Ltd. 
520 |a Arctic-boreal landscapes are experiencing profound warming, along with changes in ecosystem moisture status and disturbance from fire. This region is of global importance in terms of carbon feedbacks to climate, yet the sign (sink or source) and magnitude of the Arctic-boreal carbon budget within recent years remains highly uncertain. Here, we provide new estimates of recent (2003-2015) vegetation gross primary productivity (GPP), ecosystem respiration (Reco ), net ecosystem CO2 exchange (NEE; Reco  - GPP), and terrestrial methane (CH4 ) emissions for the Arctic-boreal zone using a satellite data-driven process-model for northern ecosystems (TCFM-Arctic), calibrated and evaluated using measurements from >60 tower eddy covariance (EC) sites. We used TCFM-Arctic to obtain daily 1-km2 flux estimates and annual carbon budgets for the pan-Arctic-boreal region. Across the domain, the model indicated an overall average NEE sink of -850 Tg CO2 -C year-1 . Eurasian boreal zones, especially those in Siberia, contributed to a majority of the net sink. In contrast, the tundra biome was relatively carbon neutral (ranging from small sink to source). Regional CH4 emissions from tundra and boreal wetlands (not accounting for aquatic CH4 ) were estimated at 35 Tg CH4 -C year-1 . Accounting for additional emissions from open water aquatic bodies and from fire, using available estimates from the literature, reduced the total regional NEE sink by 21% and shifted many far northern tundra landscapes, and some boreal forests, to a net carbon source. This assessment, based on in situ observations and models, improves our understanding of the high-latitude carbon status and also indicates a continued need for integrated site-to-regional assessments to monitor the vulnerability of these ecosystems to climate change 
650 4 |a Journal Article 
650 4 |a Arctic-boreal 
650 4 |a CH4 
650 4 |a CO2 
650 4 |a carbon budget 
650 4 |a remote sensing 
650 4 |a tundra 
650 4 |a wetland 
650 7 |a Carbon  |2 NLM 
650 7 |a 7440-44-0  |2 NLM 
650 7 |a Carbon Dioxide  |2 NLM 
650 7 |a 142M471B3J  |2 NLM 
650 7 |a Methane  |2 NLM 
650 7 |a OP0UW79H66  |2 NLM 
700 1 |a Farina, Mary  |e verfasserin  |4 aut 
700 1 |a Kimball, John S  |e verfasserin  |4 aut 
700 1 |a Schiferl, Luke D  |e verfasserin  |4 aut 
700 1 |a Liu, Zhihua  |e verfasserin  |4 aut 
700 1 |a Arndt, Kyle A  |e verfasserin  |4 aut 
700 1 |a Zona, Donatella  |e verfasserin  |4 aut 
700 1 |a Ballantyne, Ashley  |e verfasserin  |4 aut 
700 1 |a Euskirchen, Eugénie S  |e verfasserin  |4 aut 
700 1 |a Parmentier, Frans-Jan W  |e verfasserin  |4 aut 
700 1 |a Helbig, Manuel  |e verfasserin  |4 aut 
700 1 |a Sonnentag, Oliver  |e verfasserin  |4 aut 
700 1 |a Tagesson, Torbern  |e verfasserin  |4 aut 
700 1 |a Rinne, Janne  |e verfasserin  |4 aut 
700 1 |a Ikawa, Hiroki  |e verfasserin  |4 aut 
700 1 |a Ueyama, Masahito  |e verfasserin  |4 aut 
700 1 |a Kobayashi, Hideki  |e verfasserin  |4 aut 
700 1 |a Sachs, Torsten  |e verfasserin  |4 aut 
700 1 |a Nadeau, Daniel F  |e verfasserin  |4 aut 
700 1 |a Kochendorfer, John  |e verfasserin  |4 aut 
700 1 |a Jackowicz-Korczynski, Marcin  |e verfasserin  |4 aut 
700 1 |a Virkkala, Anna  |e verfasserin  |4 aut 
700 1 |a Aurela, Mika  |e verfasserin  |4 aut 
700 1 |a Commane, Roisin  |e verfasserin  |4 aut 
700 1 |a Byrne, Brendan  |e verfasserin  |4 aut 
700 1 |a Birch, Leah  |e verfasserin  |4 aut 
700 1 |a Johnson, Matthew S  |e verfasserin  |4 aut 
700 1 |a Madani, Nima  |e verfasserin  |4 aut 
700 1 |a Rogers, Brendan  |e verfasserin  |4 aut 
700 1 |a Du, Jinyang  |e verfasserin  |4 aut 
700 1 |a Endsley, Arthur  |e verfasserin  |4 aut 
700 1 |a Savage, Kathleen  |e verfasserin  |4 aut 
700 1 |a Poulter, Ben  |e verfasserin  |4 aut 
700 1 |a Zhang, Zhen  |e verfasserin  |4 aut 
700 1 |a Bruhwiler, Lori M  |e verfasserin  |4 aut 
700 1 |a Miller, Charles E  |e verfasserin  |4 aut 
700 1 |a Goetz, Scott  |e verfasserin  |4 aut 
700 1 |a Oechel, Walter C  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Global change biology  |d 1999  |g 29(2023), 7 vom: 17. Apr., Seite 1870-1889  |w (DE-627)NLM098239996  |x 1365-2486  |7 nnns 
773 1 8 |g volume:29  |g year:2023  |g number:7  |g day:17  |g month:04  |g pages:1870-1889 
856 4 0 |u http://dx.doi.org/10.1111/gcb.16553  |3 Volltext 
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