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Global CO2 emissions from dry inland waters share common drivers across ecosystems

pmid: 32358532
pmc: PMC7195363
AbstractMany inland waters exhibit complete or partial desiccation, or have vanished due to global change, exposing sediments to the atmosphere. Yet, data on carbon dioxide (CO2) emissions from these sediments are too scarce to upscale emissions for global estimates or to understand their fundamental drivers. Here, we present the results of a global survey covering 196 dry inland waters across diverse ecosystem types and climate zones. We show that their CO2 emissions share fundamental drivers and constitute a substantial fraction of the carbon cycled by inland waters. CO2 emissions were consistent across ecosystem types and climate zones, with local characteristics explaining much of the variability. Accounting for such emissions increases global estimates of carbon emissions from inland waters by 6% (~0.12 Pg C y−1). Our results indicate that emissions from dry inland waters represent a significant and likely increasing component of the inland waters carbon cycle.
- Federal University of Rio de Janeiro Brazil
- China Jiliang University China (People's Republic of)
- Uppsala University Sweden
- National Scientific and Technical Research Council Argentina
- Département Sciences sociales, agriculture et alimentation, espace et environnement France
[SDE] Environmental Sciences, 550, Ecology and Evolutionary Biology, Drawdown, hydrology, Klimatforskning, Seas, Dry rivers, Responses, Canvi climàtic, CH4 EMISSIONS, EXCHANGE, GREENHOUSE-GAS EMISSIONS, Respiration, Q, Carbon cycle, Miljövetenskap, CARBON-DIOXIDE EMISSIONS, Dry sediments, Multidisciplinary Sciences, Mar, RESPIRATION, Fluxes, [SDE]Environmental Sciences, Science & Technology - Other Topics, ecosystems, LAKES, 570, FLUXES, Climate Research, Science, CO2 emissions, Article, Carbon-dioxide emissions, Sediments, Rivers, Settore BIO/07 - ECOLOGIA, carbon cycle, Science & Technology, carbon dioxide, Aquatic Ecology, Exchange, Climate Science, Climatic change, Environmental sciences, [SDE.BE] Environmental Sciences/Biodiversity and Ecology, CO2 fluxes, Lakes, Carbon dioxide, Reservoirs, Ecological Microbiology, CO2 emission, DRAWDOWN, Ch4 emissions, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Hydrology, Diòxid de carboni, RESERVOIRS, :5 - Ciencias puras y naturales [CDU], Environmental Sciences, Klimatvetenskap, RESPONSES, Greenhouse-gas emissions
[SDE] Environmental Sciences, 550, Ecology and Evolutionary Biology, Drawdown, hydrology, Klimatforskning, Seas, Dry rivers, Responses, Canvi climàtic, CH4 EMISSIONS, EXCHANGE, GREENHOUSE-GAS EMISSIONS, Respiration, Q, Carbon cycle, Miljövetenskap, CARBON-DIOXIDE EMISSIONS, Dry sediments, Multidisciplinary Sciences, Mar, RESPIRATION, Fluxes, [SDE]Environmental Sciences, Science & Technology - Other Topics, ecosystems, LAKES, 570, FLUXES, Climate Research, Science, CO2 emissions, Article, Carbon-dioxide emissions, Sediments, Rivers, Settore BIO/07 - ECOLOGIA, carbon cycle, Science & Technology, carbon dioxide, Aquatic Ecology, Exchange, Climate Science, Climatic change, Environmental sciences, [SDE.BE] Environmental Sciences/Biodiversity and Ecology, CO2 fluxes, Lakes, Carbon dioxide, Reservoirs, Ecological Microbiology, CO2 emission, DRAWDOWN, Ch4 emissions, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Hydrology, Diòxid de carboni, RESERVOIRS, :5 - Ciencias puras y naturales [CDU], Environmental Sciences, Klimatvetenskap, RESPONSES, Greenhouse-gas emissions
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).112 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 1% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Top 10% impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 1% visibility views 172 download downloads 123 - 172views123downloads
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