RT Journal Article
T1 Net CO2 emissions from dry inland waters persist in the presence of vegetation
A1 Sharma, Krati
A1 Brothers, Soren
A1 Bernal, Susana
A1 Catalán, Núria
A1 Keller, Philipp
A1 Koschorreck, Matthias
A1 Kosten, Sarian
A1 Leigh, Catherine
A1 von Schiller, Daniel
A1 Pastor, Ada
A1 Larrañaga, Aitor
A1 Arı, Akif
A1 Camacho Santamans, Alba
A1 Grinham, Alistair
A1 Lupon, Anna
A1 Linkhorst, Annika
A1 Elosegi, Arturo
A1 Obrador, Biel
A1 Eyre, Bradley D.
A1 Trochine, Carolina
A1 Muniz, Claumir Cesar
A1 Feijoo, Claudia
A1 Duvert, Clément
A1 Moreno Ostos, Enrique
A1 Garcia, Erica
A1 Oliveira, Ernades Sobreira
A1 Cuassolo, Florencia
A1 Fernandez, Hugo Rafael
A1 Yeo, Jacob
A1 Oakes, Joanne
A1 Paranaíba, José R.
A1 Pegg, Josephine
A1 Anselmo, Julieta
A1 Montes Perez, Jorge Juan
A1 van den Heuvel, Laura
A1 Ran, Lishan
A1 Wilkinson, Lopes Lazaro
A1 Gómez Gener, Lluís
A1 Arroita, Maite
A1 Shanafield, Margaret
A1 de Lourdes Gultemirian, Maria
A1 Arce, Maria Isabel
A1 Cobo, Melissa
A1 Sánchez Montoya, María Del Mar
A1 Barros, Nathan
A1 Wells, Naomi
A1 Karakaya, Nusret
A1 Arı, Pelin Ertürk
A1 Struik, Quinten
A1 Aben, Ralf
A1 Rimas, Ryan
A1 Kumar, Sanjeev
A1 Bansal, Sheel
A1 Sarkar, Siddhartha
A1 Rodríguez Gómez, Sofía
A1 Huang, Tao
A1 Silverthorn, Teresa
A1 Datry, Thibault
A1 Villanueva, Veronica Diaz
A1 Marcé, Rafael
AB Many inland waters are shrinking due to shifts in climate and water diversion for human uses. As they dry out, their exposed sediments emit large amounts of carbon dioxide (CO2) to the atmosphere. However, current global estimates of CO2 emissions from dry inland waters are derived exclusively from bare sediment dark-chamber measurements that do not account for the colonization of desiccated areas by vegetation. To understand the impact of vegetation on CO2 emissions from dry sediments, we analyzed 164 dry inland water bodies across five climatic regions and five inland water body types (lakes, ponds, reservoirs, streams and wetlands). On average, within vegetated zones, vegetation occupied 47 ± 35% in measured biomass quadrants. Light-induced decreases in instantaneous CO2 emissions in vegetated dry sediments were lower (mean ± SD = −3.7 ± 12.9 mmol CO2 m−2 hr−1) than increases during dark conditions (14.7 ± 20.1 mmol CO2 m−2 hr−1). Diel (24-hr) CO2 emissions from dry, vegetated sediments (mean ± SD = 100 ± 261 mmol CO2 m−2 d−1) were 25% lower than in bare sediments (133 ± 245 mmol CO2 m−2 d−1). These results indicate that vegetation can partially off-set sediment respiration, although the magnitude of this effect is insufficient to switch dry beds from net sources to net sinks of carbon.
PB Wiley
SN 0886-6236
SN 1944-9224
YR 2026
FD 2026-03
LK https://hdl.handle.net/20.500.14352/137235
UL https://hdl.handle.net/20.500.14352/137235
LA eng
NO Sharma, K., Brothers, S., Bernal, S., Catalán, N., Keller, P., Koschorreck, M., et al. (2026). Net CO2 emissions from dry inland waters persist in the presence of vegetation. Global Biogeochemical Cycles, 40, e2025GB008801. https://doi.org/10.1029/2025GB008801
NO This study was made possible thanks to a large collective effort of a global research network called DryFlux (www.ufz.de/dryflux). This work is the result of an international team science effort facilitated by the Global Lake Ecological Observatory Network (GLEON). KS holds a predoctoral fellowship from AGAUR FI ajuts (2023 FI-1 00295), Joan Oró of the Secretariat of Universities and Research of the Department of Research and Universities of the Generalitat of Catalonia, and the European Social Plus Fund. The work of SBe was supported by the projects EVASIONA (PID2021-122817-NB-100) and RIPAMED (CNS2023-144737) funded by MICIU/AEI/FEDER-Next Generation. AP is currently supported by a “Ramón y Cajal” Fellowship (RYC2022-036661-I) of the Spanish Ministry of Science, Innovation and Universities. RM participation was funded by the Spanish Agencia Estatal de Investigación Grant PID2024-161534NB-C31/MICIU/AEI/10.13039/501100011033/FEDER,UE. BDE and JY were supported by ARC Grant DP220100918. LR was supported by Hong Kong RGC Grant 17306224. SBa was funded by the USGS Ecosystems Land Change Science Program and U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research (Grant DE-SC0023084). Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. USGS data can be found at Bansal et al. (2022). SS and SK were supported by the Department of Space, Government of India. Special thanks to D. Mercado (CEAB-CSIC) for their assistance with R coding, which greatly contributed to the analysis in this study. Lastly, KS appreciates the support and insights from her colleagues and mentors who have helped refine this work. NC was supported by Spanish Agencia Estatal de Investigacion Grant—PID2022-140848NA-C32.
NO Global Lake Ecological Observatory Network
NO Agència de Gestió d’Ajuts Universitaris i de Recerca
NO Generalitat de Catalunya
NO European Commission
NO Ministerio de Ciencia, Innovación y Universidades (España)
NO University Grants Committee (Hong Kong)
NO U.S. Geological Survey
DS Docta Complutense
RD 7 nov 2026