Simulating rewetting events in intermittent rivers and ephemeral streams

A global analysis of leached nutrients and organic matter

Oleksandra Shumilova, Dominik Zak, Thibault Datry, Daniel von Schiller, Roland Corti, Arnaud Foulquier, Biel Obrador, Klement Tockner, Daniel C. Allan, Florian Altermatt, María Isabel Arce, Shai Arnon, Damien Banas, Andy Banegas-Medina, Erin Beller, Melanie L. Blanchette, Juan F. Blanco-Libreros, Joanna Blessing, Iola Gonçalves Boëchat, Kate Boersma & 57 others Michael T. Bogan, Núria Bonada, Nick R. Bond, Kate Brintrup, Andreas Bruder, Ryan Burrows, Tommaso Cancellario, Stephanie M. Carlson, Sophie Cauvy-Fraunié, Núria Cid, Michael Danger, Bianca de Freitas Terra, Anna Maria De Girolamo, Ruben del Campo, Fiona Dyer, Arturo Elosegi, Emile Faye, Catherine Febria, Ricardo Figueroa, Brian Four, Mark O. Gessner, Pierre Gnohossou, Rosa Gómez Cerezo, Lluís Gomez-Gener, Manuel A.S. Graça, Simone Guareschi, Björn Gücker, Jason L. Hwan, Skhumbuzo Kubheka, Simone Daniela Langhans, Catherine Leigh, Chelsea J. Little, Stefan Lorenz, Jonathan Marshall, Angus McIntosh, Clara Mendoza-Lera, Elisabeth Irmgard Meyer, Marko Miliša, Musa C. Mlambo, Marcos Moleón, Peter Negus, Dev Niyogi, Athina Papatheodoulou, Isabel Pardo, Petr Paril, Vladimir Pešić, Pablo Rodriguez-Lozano, Robert J. Rolls, Maria Mar Sanchez-Montoya, Ana Savić, Alisha Steward, Rachel Stubbington, Amina Taleb, Ross Vander Vorste, Nathan Waltham, Annamaria Zoppini, Christiane Zarfl

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Abstract

Climate change and human pressures are changing the global distribution and the extent of intermittent rivers and ephemeral streams (IRES), which comprise half of the global river network area. IRES are characterized by periods of flow cessation, during which channel substrates accumulate and undergo physico-chemical changes (preconditioning), and periods of flow resumption, when these substrates are rewetted and release pulses of dissolved nutrients and organic matter (OM). However, there are no estimates of the amounts and quality of leached substances, nor is there information on the underlying environmental constraints operating at the global scale. We experimentally simulated, under standard laboratory conditions, rewetting of leaves, riverbed sediments, and epilithic biofilms collected during the dry phase across 205 IRES from five major climate zones. We determined the amounts and qualitative characteristics of the leached nutrients and OM, and estimated their areal fluxes from riverbeds. In addition, we evaluated the variance in leachate characteristics in relation to selected environmental variables and substrate characteristics. We found that sediments, due to their large quantities within riverbeds, contribute most to the overall flux of dissolved substances during rewetting events (56%–98%), and that flux rates distinctly differ among climate zones. Dissolved organic carbon, phenolics, and nitrate contributed most to the areal fluxes. The largest amounts of leached substances were found in the continental climate zone, coinciding with the lowest potential bioavailability of the leached OM. The opposite pattern was found in the arid zone. Environmental variables expected to be modified under climate change (i.e. potential evapotranspiration, aridity, dry period duration, land use) were correlated with the amount of leached substances, with the strongest relationship found for sediments. These results show that the role of IRES should be accounted for in global biogeochemical cycles, especially because prevalence of IRES will increase due to increasing severity of drying events.

Original languageEnglish
Pages (from-to)1591-1611
Number of pages21
JournalGlobal Change Biology
Volume25
Issue number5
DOIs
Publication statusPublished - 9 Jan 2019

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ephemeral stream
rewetting
Biological materials
Nutrients
Rivers
organic matter
nutrient
river
Fluxes
Sediments
Climate change
substrate
Substrates
sediment
climate change
Evapotranspiration
environmental constraint
potential evapotranspiration
biogeochemical cycle
Biofilms

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Shumilova, Oleksandra ; Zak, Dominik ; Datry, Thibault ; von Schiller, Daniel ; Corti, Roland ; Foulquier, Arnaud ; Obrador, Biel ; Tockner, Klement ; Allan, Daniel C. ; Altermatt, Florian ; Arce, María Isabel ; Arnon, Shai ; Banas, Damien ; Banegas-Medina, Andy ; Beller, Erin ; Blanchette, Melanie L. ; Blanco-Libreros, Juan F. ; Blessing, Joanna ; Boëchat, Iola Gonçalves ; Boersma, Kate ; Bogan, Michael T. ; Bonada, Núria ; Bond, Nick R. ; Brintrup, Kate ; Bruder, Andreas ; Burrows, Ryan ; Cancellario, Tommaso ; Carlson, Stephanie M. ; Cauvy-Fraunié, Sophie ; Cid, Núria ; Danger, Michael ; de Freitas Terra, Bianca ; Girolamo, Anna Maria De ; del Campo, Ruben ; Dyer, Fiona ; Elosegi, Arturo ; Faye, Emile ; Febria, Catherine ; Figueroa, Ricardo ; Four, Brian ; Gessner, Mark O. ; Gnohossou, Pierre ; Cerezo, Rosa Gómez ; Gomez-Gener, Lluís ; Graça, Manuel A.S. ; Guareschi, Simone ; Gücker, Björn ; Hwan, Jason L. ; Kubheka, Skhumbuzo ; Langhans, Simone Daniela ; Leigh, Catherine ; Little, Chelsea J. ; Lorenz, Stefan ; Marshall, Jonathan ; McIntosh, Angus ; Mendoza-Lera, Clara ; Meyer, Elisabeth Irmgard ; Miliša, Marko ; Mlambo, Musa C. ; Moleón, Marcos ; Negus, Peter ; Niyogi, Dev ; Papatheodoulou, Athina ; Pardo, Isabel ; Paril, Petr ; Pešić, Vladimir ; Rodriguez-Lozano, Pablo ; Rolls, Robert J. ; Sanchez-Montoya, Maria Mar ; Savić, Ana ; Steward, Alisha ; Stubbington, Rachel ; Taleb, Amina ; Vorste, Ross Vander ; Waltham, Nathan ; Zoppini, Annamaria ; Zarfl, Christiane. / Simulating rewetting events in intermittent rivers and ephemeral streams : A global analysis of leached nutrients and organic matter. In: Global Change Biology. 2019 ; Vol. 25, No. 5. pp. 1591-1611.
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abstract = "Climate change and human pressures are changing the global distribution and the extent of intermittent rivers and ephemeral streams (IRES), which comprise half of the global river network area. IRES are characterized by periods of flow cessation, during which channel substrates accumulate and undergo physico-chemical changes (preconditioning), and periods of flow resumption, when these substrates are rewetted and release pulses of dissolved nutrients and organic matter (OM). However, there are no estimates of the amounts and quality of leached substances, nor is there information on the underlying environmental constraints operating at the global scale. We experimentally simulated, under standard laboratory conditions, rewetting of leaves, riverbed sediments, and epilithic biofilms collected during the dry phase across 205 IRES from five major climate zones. We determined the amounts and qualitative characteristics of the leached nutrients and OM, and estimated their areal fluxes from riverbeds. In addition, we evaluated the variance in leachate characteristics in relation to selected environmental variables and substrate characteristics. We found that sediments, due to their large quantities within riverbeds, contribute most to the overall flux of dissolved substances during rewetting events (56{\%}–98{\%}), and that flux rates distinctly differ among climate zones. Dissolved organic carbon, phenolics, and nitrate contributed most to the areal fluxes. The largest amounts of leached substances were found in the continental climate zone, coinciding with the lowest potential bioavailability of the leached OM. The opposite pattern was found in the arid zone. Environmental variables expected to be modified under climate change (i.e. potential evapotranspiration, aridity, dry period duration, land use) were correlated with the amount of leached substances, with the strongest relationship found for sediments. These results show that the role of IRES should be accounted for in global biogeochemical cycles, especially because prevalence of IRES will increase due to increasing severity of drying events.",
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pages = "1591--1611",
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Shumilova, O, Zak, D, Datry, T, von Schiller, D, Corti, R, Foulquier, A, Obrador, B, Tockner, K, Allan, DC, Altermatt, F, Arce, MI, Arnon, S, Banas, D, Banegas-Medina, A, Beller, E, Blanchette, ML, Blanco-Libreros, JF, Blessing, J, Boëchat, IG, Boersma, K, Bogan, MT, Bonada, N, Bond, NR, Brintrup, K, Bruder, A, Burrows, R, Cancellario, T, Carlson, SM, Cauvy-Fraunié, S, Cid, N, Danger, M, de Freitas Terra, B, Girolamo, AMD, del Campo, R, Dyer, F, Elosegi, A, Faye, E, Febria, C, Figueroa, R, Four, B, Gessner, MO, Gnohossou, P, Cerezo, RG, Gomez-Gener, L, Graça, MAS, Guareschi, S, Gücker, B, Hwan, JL, Kubheka, S, Langhans, SD, Leigh, C, Little, CJ, Lorenz, S, Marshall, J, McIntosh, A, Mendoza-Lera, C, Meyer, EI, Miliša, M, Mlambo, MC, Moleón, M, Negus, P, Niyogi, D, Papatheodoulou, A, Pardo, I, Paril, P, Pešić, V, Rodriguez-Lozano, P, Rolls, RJ, Sanchez-Montoya, MM, Savić, A, Steward, A, Stubbington, R, Taleb, A, Vorste, RV, Waltham, N, Zoppini, A & Zarfl, C 2019, 'Simulating rewetting events in intermittent rivers and ephemeral streams: A global analysis of leached nutrients and organic matter', Global Change Biology, vol. 25, no. 5, pp. 1591-1611. https://doi.org/10.1111/gcb.14537

Simulating rewetting events in intermittent rivers and ephemeral streams : A global analysis of leached nutrients and organic matter. / Shumilova, Oleksandra; Zak, Dominik; Datry, Thibault; von Schiller, Daniel; Corti, Roland; Foulquier, Arnaud; Obrador, Biel; Tockner, Klement; Allan, Daniel C.; Altermatt, Florian; Arce, María Isabel; Arnon, Shai; Banas, Damien; Banegas-Medina, Andy; Beller, Erin; Blanchette, Melanie L.; Blanco-Libreros, Juan F.; Blessing, Joanna; Boëchat, Iola Gonçalves; Boersma, Kate; Bogan, Michael T.; Bonada, Núria; Bond, Nick R.; Brintrup, Kate; Bruder, Andreas; Burrows, Ryan; Cancellario, Tommaso; Carlson, Stephanie M.; Cauvy-Fraunié, Sophie; Cid, Núria; Danger, Michael; de Freitas Terra, Bianca; Girolamo, Anna Maria De; del Campo, Ruben; Dyer, Fiona; Elosegi, Arturo; Faye, Emile; Febria, Catherine; Figueroa, Ricardo; Four, Brian; Gessner, Mark O.; Gnohossou, Pierre; Cerezo, Rosa Gómez; Gomez-Gener, Lluís; Graça, Manuel A.S.; Guareschi, Simone; Gücker, Björn; Hwan, Jason L.; Kubheka, Skhumbuzo; Langhans, Simone Daniela; Leigh, Catherine; Little, Chelsea J.; Lorenz, Stefan; Marshall, Jonathan; McIntosh, Angus; Mendoza-Lera, Clara; Meyer, Elisabeth Irmgard; Miliša, Marko; Mlambo, Musa C.; Moleón, Marcos; Negus, Peter; Niyogi, Dev; Papatheodoulou, Athina; Pardo, Isabel; Paril, Petr; Pešić, Vladimir; Rodriguez-Lozano, Pablo; Rolls, Robert J.; Sanchez-Montoya, Maria Mar; Savić, Ana; Steward, Alisha; Stubbington, Rachel; Taleb, Amina; Vorste, Ross Vander; Waltham, Nathan; Zoppini, Annamaria; Zarfl, Christiane.

In: Global Change Biology, Vol. 25, No. 5, 09.01.2019, p. 1591-1611.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Simulating rewetting events in intermittent rivers and ephemeral streams

T2 - A global analysis of leached nutrients and organic matter

AU - Shumilova, Oleksandra

AU - Zak, Dominik

AU - Datry, Thibault

AU - von Schiller, Daniel

AU - Corti, Roland

AU - Foulquier, Arnaud

AU - Obrador, Biel

AU - Tockner, Klement

AU - Allan, Daniel C.

AU - Altermatt, Florian

AU - Arce, María Isabel

AU - Arnon, Shai

AU - Banas, Damien

AU - Banegas-Medina, Andy

AU - Beller, Erin

AU - Blanchette, Melanie L.

AU - Blanco-Libreros, Juan F.

AU - Blessing, Joanna

AU - Boëchat, Iola Gonçalves

AU - Boersma, Kate

AU - Bogan, Michael T.

AU - Bonada, Núria

AU - Bond, Nick R.

AU - Brintrup, Kate

AU - Bruder, Andreas

AU - Burrows, Ryan

AU - Cancellario, Tommaso

AU - Carlson, Stephanie M.

AU - Cauvy-Fraunié, Sophie

AU - Cid, Núria

AU - Danger, Michael

AU - de Freitas Terra, Bianca

AU - Girolamo, Anna Maria De

AU - del Campo, Ruben

AU - Dyer, Fiona

AU - Elosegi, Arturo

AU - Faye, Emile

AU - Febria, Catherine

AU - Figueroa, Ricardo

AU - Four, Brian

AU - Gessner, Mark O.

AU - Gnohossou, Pierre

AU - Cerezo, Rosa Gómez

AU - Gomez-Gener, Lluís

AU - Graça, Manuel A.S.

AU - Guareschi, Simone

AU - Gücker, Björn

AU - Hwan, Jason L.

AU - Kubheka, Skhumbuzo

AU - Langhans, Simone Daniela

AU - Leigh, Catherine

AU - Little, Chelsea J.

AU - Lorenz, Stefan

AU - Marshall, Jonathan

AU - McIntosh, Angus

AU - Mendoza-Lera, Clara

AU - Meyer, Elisabeth Irmgard

AU - Miliša, Marko

AU - Mlambo, Musa C.

AU - Moleón, Marcos

AU - Negus, Peter

AU - Niyogi, Dev

AU - Papatheodoulou, Athina

AU - Pardo, Isabel

AU - Paril, Petr

AU - Pešić, Vladimir

AU - Rodriguez-Lozano, Pablo

AU - Rolls, Robert J.

AU - Sanchez-Montoya, Maria Mar

AU - Savić, Ana

AU - Steward, Alisha

AU - Stubbington, Rachel

AU - Taleb, Amina

AU - Vorste, Ross Vander

AU - Waltham, Nathan

AU - Zoppini, Annamaria

AU - Zarfl, Christiane

PY - 2019/1/9

Y1 - 2019/1/9

N2 - Climate change and human pressures are changing the global distribution and the extent of intermittent rivers and ephemeral streams (IRES), which comprise half of the global river network area. IRES are characterized by periods of flow cessation, during which channel substrates accumulate and undergo physico-chemical changes (preconditioning), and periods of flow resumption, when these substrates are rewetted and release pulses of dissolved nutrients and organic matter (OM). However, there are no estimates of the amounts and quality of leached substances, nor is there information on the underlying environmental constraints operating at the global scale. We experimentally simulated, under standard laboratory conditions, rewetting of leaves, riverbed sediments, and epilithic biofilms collected during the dry phase across 205 IRES from five major climate zones. We determined the amounts and qualitative characteristics of the leached nutrients and OM, and estimated their areal fluxes from riverbeds. In addition, we evaluated the variance in leachate characteristics in relation to selected environmental variables and substrate characteristics. We found that sediments, due to their large quantities within riverbeds, contribute most to the overall flux of dissolved substances during rewetting events (56%–98%), and that flux rates distinctly differ among climate zones. Dissolved organic carbon, phenolics, and nitrate contributed most to the areal fluxes. The largest amounts of leached substances were found in the continental climate zone, coinciding with the lowest potential bioavailability of the leached OM. The opposite pattern was found in the arid zone. Environmental variables expected to be modified under climate change (i.e. potential evapotranspiration, aridity, dry period duration, land use) were correlated with the amount of leached substances, with the strongest relationship found for sediments. These results show that the role of IRES should be accounted for in global biogeochemical cycles, especially because prevalence of IRES will increase due to increasing severity of drying events.

AB - Climate change and human pressures are changing the global distribution and the extent of intermittent rivers and ephemeral streams (IRES), which comprise half of the global river network area. IRES are characterized by periods of flow cessation, during which channel substrates accumulate and undergo physico-chemical changes (preconditioning), and periods of flow resumption, when these substrates are rewetted and release pulses of dissolved nutrients and organic matter (OM). However, there are no estimates of the amounts and quality of leached substances, nor is there information on the underlying environmental constraints operating at the global scale. We experimentally simulated, under standard laboratory conditions, rewetting of leaves, riverbed sediments, and epilithic biofilms collected during the dry phase across 205 IRES from five major climate zones. We determined the amounts and qualitative characteristics of the leached nutrients and OM, and estimated their areal fluxes from riverbeds. In addition, we evaluated the variance in leachate characteristics in relation to selected environmental variables and substrate characteristics. We found that sediments, due to their large quantities within riverbeds, contribute most to the overall flux of dissolved substances during rewetting events (56%–98%), and that flux rates distinctly differ among climate zones. Dissolved organic carbon, phenolics, and nitrate contributed most to the areal fluxes. The largest amounts of leached substances were found in the continental climate zone, coinciding with the lowest potential bioavailability of the leached OM. The opposite pattern was found in the arid zone. Environmental variables expected to be modified under climate change (i.e. potential evapotranspiration, aridity, dry period duration, land use) were correlated with the amount of leached substances, with the strongest relationship found for sediments. These results show that the role of IRES should be accounted for in global biogeochemical cycles, especially because prevalence of IRES will increase due to increasing severity of drying events.

KW - biofilms

KW - leaching

KW - leaf litter

KW - rewetting

KW - sediments

KW - temporary rivers

UR - http://www.scopus.com/inward/record.url?scp=85062345650&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/simulating-rewetting-events-intermittent-rivers-ephemeral-streams-global-analysis-leached-nutrients-2

U2 - 10.1111/gcb.14537

DO - 10.1111/gcb.14537

M3 - Article

VL - 25

SP - 1591

EP - 1611

JO - Global Change Biology

JF - Global Change Biology

SN - 1354-1013

IS - 5

ER -