| Title | Sediment Respiration Pulses in Intermittent Rivers and Ephemeral Streams |
| Abstract | Intermittent rivers and ephemeral streams (IRES) may represent over half the global stream network, but their contribution to respiration and carbon dioxide (CO2) emissions is largely undetermined. In particular, little is known about the variability and drivers of respiration in IRES sediments upon rewetting, which could result in large pulses of CO2. We present a global study examining sediments from 200 dry IRES reaches spanning multiple biomes. Results from standardized assays show that mean respiration increased 32-fold to 66-fold upon sediment rewetting. Structural equation modeling indicates that this response was driven by sediment texture and organic matter quantity and quality, which, in turn, were influenced by climate, land use, and riparian plant cover. Our estimates suggest that respiration pulses resulting from rewetting of IRES sediments could contribute significantly to annual CO2 emissions from the global stream network, with a single respiration pulse potentially increasing emission by 0.2-0.7%. As the spatial and temporal extent of IRES increases globally, our results highlight the importance of recognizing the influence of wetting-drying cycles on respiration and CO2 emissions in stream networks. |
| Source | Global biogeochemical cycles 33 (10), pp. 1251–1263 |
| Keywords | riverstreamintermittenttemporaryrespirationCO2 |
| Journal | Global biogeochemical cycles |
| Editor | American Geophysical Union,, Washington, DC, Stati Uniti d'America |
| Year | 2019 |
| Type | Articolo in rivista |
| DOI | 10.1029/2019GB006276 |
| Authors | von Schiller, D.; Datry, T.; Corti, R.; Foulquier, A.; Tockner, K.; Marce, R.; Garcia-Baquero, G.; Odriozola, I; Obrador, B.; Elosegi, A.; Mendoza-Lera, C.; Gessner, M. O.; Stubbington, R.; Albarino, R.; Allen, D. C.; Altermatt, F.; Arce, M., I; Arnon, S.; Banas, D.; Banegas-Medina, A.; Beller, E.; Blanchette, M. L.; Blanco-Libreros, J. F.; Blessing, J.; Boechat, I. G.; Boersma, K. S.; Bogan, M. T.; Bonada, N.; Bond, N. R.; Brintrup, K.; Bruder, A.; Burrows, R. M.; Cancellario, T.; Carlson, S. M.; Cauvy-Fraunie, S.; Cid, N.; Danger, M.; de Freitas Terra, B.; Dehedin, A.; De Girolamo, A. M.; del Campo, R.; Diaz-Villanueva, V.; Duerdoth, C. P.; Dyer, F.; Faye, E.; Febria, C.; Figueroa, R.; Four, B.; Gafny, S.; Gomez, R.; Gomez-Gener, L.; Graca, M. A. S.; Guareschi, S.; Gucker, B.; Hoppeler, F.; Hwan, J. L.; Kubheka, S.; Laini, A.; Langhans, S. D.; Leigh, C.; Little, C. J.; Lorenz, S.; Marshall, J.; Martin, E. J.; McIntosh, A.; Meyer, E., I; Milisa, M.; Mlambo, M. C.; Moleon, M.; Morais, M.; Negus, P.; Niyogi, D.; Papatheodoulou, A.; Pardo, I; Paril, P.; Pesic, V; Piscart, C.; Polasek, M.; Rodriguez-Lozano, P.; Rolls, R. J.; Sanchez-Montoya, M. M.; Savic, A.; Shumilova, O.; Steward, A.; Taleb, A.; Uzan, A.; Vander Vorste, R.; Waltham, N.; Woelfle-Erskine, C.; Zak, D.; Zarfl, C.; Zoppini, A. |
| Text | 413019 2019 10.1029/2019GB006276 ISI Web of Science WOS 000492490100001 Scopus 2 s2.0 85074352081 river stream intermittent temporary respiration CO2 Sediment Respiration Pulses in Intermittent Rivers and Ephemeral Streams von Schiller, D.; Datry, T.; Corti, R.; Foulquier, A.; Tockner, K.; Marce, R.; Garcia Baquero, G.; Odriozola, I; Obrador, B.; Elosegi, A.; Mendoza Lera, C.; Gessner, M. O.; Stubbington, R.; Albarino, R.; Allen, D. C.; Altermatt, F.; Arce, M., I; Arnon, S.; Banas, D.; Banegas Medina, A.; Beller, E.; Blanchette, M. L.; Blanco Libreros, J. F.; Blessing, J.; Boechat, I. G.; Boersma, K. S.; Bogan, M. T.; Bonada, N.; Bond, N. R.; Brintrup, K.; Bruder, A.; Burrows, R. M.; Cancellario, T.; Carlson, S. M.; Cauvy Fraunie, S.; Cid, N.; Danger, M.; de Freitas Terra, B.; Dehedin, A.; De Girolamo, A. M.; del Campo, R.; Diaz Villanueva, V.; Duerdoth, C. P.; Dyer, F.; Faye, E.; Febria, C.; Figueroa, R.; Four, B.; Gafny, S.; Gomez, R.; Gomez Gener, L.; Graca, M. A. S.; Guareschi, S.; Gucker, B.; Hoppeler, F.; Hwan, J. L.; Kubheka, S.; Laini, A.; Langhans, S. D.; Leigh, C.; Little, C. J.; Lorenz, S.; Marshall, J.; Martin, E. J.; McIntosh, A.; Meyer, E., I; Milisa, M.; Mlambo, M. C.; Moleon, M.; Morais, M.; Negus, P.; Niyogi, D.; Papatheodoulou, A.; Pardo, I; Paril, P.; Pesic, V; Piscart, C.; Polasek, M.; Rodriguez Lozano, P.; Rolls, R. J.; Sanchez Montoya, M. M.; Savic, A.; Shumilova, O.; Steward, A.; Taleb, A.; Uzan, A.; Vander Vorste, R.; Waltham, N.; Woelfle Erskine, C.; Zak, D.; Zarfl, C.; Zoppini, A. Univ Basque Country; Ctr Lyon; Leibniz Inst Freshwater Ecol Inland Fisheries I; Univ Grenoble Alpes; Austrian Sci Fund FWF; Catalan Inst Water Res ICRA; CAS; Univ Barcelona; TU Berlin; Nottingham Trent Univ; Univ Nacl Comahue; Univ Oklahoma; Univ Zurich; Swiss Fed Inst Aquat Sci Technol; CSIC; Ben Gurion Univ Negev; Univ Lorraine; Univ Concepcion; Univ Concepcion; Univ Calif Berkeley; Edith Cowan Univ; Univ Antioquia; Queensland Govt; Univ Fed Sao Joao del Rei; Univ San Diego; Univ Arizona; Univ Barcelona; La Trobe Univ; Univ Appl Sci Arts Southern Switzerland; Griffith Univ; Univ Navarra; Univ Calif Berkeley; Univ Lorraine; Univ Estadual Vale Acarau; ASCONIT Consultants; CNR; Univ Murcia; Consejo Nacl Invest Cient Tecn; Queen Mary Univ London; Univ Canberra; Ctr Int Rech Agron Dev; Univ Canterbury; Univ Windsor; INRA; Ruppin Acad Ctr; Umea Univ; Univ Coimbra; Loughborough Univ; Senckenberg Biodivers Climate Res Ctr BiK F; Ezemvelo KZN Wildlife; Univ Parma; Univ Otago; Basque Ctr Climate Change; Queensland Univ Technol; Queensland Univ Technol; Julius Kuehn Inst; Univ Munster; Univ Zagreb; Rhodes Univ; Univ Granada; Univ Evora; Missouri Univ Sci Technol; Terra Cypria Cyprus Conservat Fdn; Univ Vigo; Masaryk Univ; Univ Montenegro; Univ Rennes; Univ New England; Univ Nis; Freie Univ Berlin FU; Trento Univ; Univ Tlemcen; Nat Pk Author Israel; James Cook Univ; Univ Washington; Univ Rostock; Aarhus Univ; Eberhard Karts Univ Tubingen Intermittent rivers and ephemeral streams IRES may represent over half the global stream network, but their contribution to respiration and carbon dioxide CO2 emissions is largely undetermined. In particular, little is known about the variability and drivers of respiration in IRES sediments upon rewetting, which could result in large pulses of CO2. We present a global study examining sediments from 200 dry IRES reaches spanning multiple biomes. Results from standardized assays show that mean respiration increased 32 fold to 66 fold upon sediment rewetting. Structural equation modeling indicates that this response was driven by sediment texture and organic matter quantity and quality, which, in turn, were influenced by climate, land use, and riparian plant cover. Our estimates suggest that respiration pulses resulting from rewetting of IRES sediments could contribute significantly to annual CO2 emissions from the global stream network, with a single respiration pulse potentially increasing emission by 0.2 0.7%. As the spatial and temporal extent of IRES increases globally, our results highlight the importance of recognizing the influence of wetting drying cycles on respiration and CO2 emissions in stream networks. 33 Published version https //agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2019GB006276 21/08/2019 IL LAVORO e STATO SVILUPPATO NELL AMBITO DEL PROGETTO EU SMIRES Science and Management of Intermittent Rivers and Ephemeral Streams COST ACTION CA15113 Sediment Respiration Pulses in Intermittent Rivers and Ephemeral Streams REPRINT Schiller_et_al 2019 Global_Biogeochemical_Cycles 1.pdf Articolo in rivista American Geophysical Union, 0886 6236 Global biogeochemical cycles Global biogeochemical cycles Glob. biogeochem. cycles Global biogeochemical cycles. annamaria.degirolamo DE GIROLAMO ANNA MARIA annamaria.zoppini ZOPPINI ANNAMARIA TA.P04.032.002 Ruolo delle comunita microbiche nei cicli biogeochimici e nella degradazione degli inquinanti DTA.AD002.479.001 Gestione sostenibile ed efficiente delle risorse naturali, degli ecosistemi e della biodiversita |
