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Ajouter le résultat dans votre panierLakes as sentinels of climate change / Rita Adrian in Limnology and oceanography, 54 (6-2) (November 2009)
Titre : Lakes as sentinels of climate change Type de document : Imprimé Auteurs : Rita Adrian ; Catherine M. O'Reilly ; Horacio Zagarese ; Stephen B. Baines ; Dag O. Hessen ; Wendel Keller ; David M. Livingstone ; Ruben Sommaruga ; Dietmar Straile ; Ellen Van Donk ; Gesa A. Weyhenmeyer ; Monika Winder Année de publication : 2009 Article en page(s) : 2283-2297 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Enjeux de conservation des lacs d'altitude
[LOTERRE-Biodiversité] Changement climatiqueRésumé : While there is a general sense that lakes can act as sentinels of climate change, their efficacy has not been thoroughly analyzed. We identified the key response variables within a lake that act as indicators of the effects of climate change on both the lake and the catchment. These variables reflect a wide range of physical, chemical, and biological responses to climate. However, the efficacy of the different indicators is affected by regional response to climate change, characteristics of the catchment, and lake mixing regimes. Thus, particular indicators or combinations of indicators are more effective for different lake types and geographic regions. The extraction of climate signals can be further complicated by the influence of other environmental changes, such as eutrophication or acidification, and the equivalent reverse phenomena, in addition to other land-use influences. In many cases, however, confounding factors can be addressed through analytical tools such as detrending or filtering. Lakes are effective sentinels for climate change because they are sensitive to climate, respond rapidly to change, and integrate information about changes in the catchment. Lien pérenne : DOI : 10.4319/lo.2009.54.6_part_2.2283 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=147804
in Limnology and oceanography > 54 (6-2) (November 2009) . - 2283-2297Adrian, Rita, O'Reilly, Catherine M., Zagarese, Horacio, Baines, Stephen B., Hessen, Dag O., Keller, Wendel, Livingstone, David M., Sommaruga, Ruben, Straile, Dietmar, Van Donk, Ellen, Weyhenmeyer, Gesa A., Winder, Monika 2009 Lakes as sentinels of climate change. Limnology and oceanography, 54(6-2): 2283-2297.Documents numériques
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Titre : Lakes as sentinels and integrators for the effects of climate change on watersheds, airsheds, and landscapes Type de document : Imprimé Auteurs : David W. Schindler (1940-2021) Année de publication : 2009 Article en page(s) : 2349-2358 Catégories : [CBNPMP-Thématique] Enjeux de conservation des lacs d'altitude
[LOTERRE-Biodiversité] Changement climatiqueRésumé : Lakes provide unique sentinels and integrators of events in their catchments and airsheds and in the total landscapes in which they are embedded. A variety of physical, chemical, and biological properties of lakes are amenable to simple, precise, and inexpensive long-term monitoring. Changes to watersheds caused by climate warming can in turn affect the properties of lakes to which they drain. Examples include changes to nutrient inputs, the balance between base cations and strong acid anions, carbon cycles, and mercury, in some cases associated with insect outbreaks and forest fires caused by warmer weather. Paleolimnology also allows integration and interpretation of changes in lakes and catchments for millennia. Such studies indicate that much drier conditions occurred in the past in central and western Canada, causing the closing of lake basins, increased salinity, eutrophication, and even the disappearance of some lakes, as forested catchments were invaded by grasslands. Such historical perspectives indicate that large areas of western Canada may be adversely affected by climate warming. Lien pérenne : DOI : 10.4319/lo.2009.54.6_part_2.2349 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150794
in Limnology and oceanography > 54 (6-2) (November 2009) . - 2349-2358Schindler, David W. (1940-2021) 2009 Lakes as sentinels and integrators for the effects of climate change on watersheds, airsheds, and landscapes. Limnology and oceanography, 54(6-2): 2349-2358.Documents numériques
Article (2009)URL
Titre : Lakes and reservoirs as regulators of carbon cycling and climate Type de document : Imprimé Auteurs : Lars J. Tranvik ; John A. Downing ; James B. Cotner ; Steven A. Loiselle ; Robert G. Striegl ; Thomas J. Ballatore ; Peter Dillon ; Kerri Finlay ; Kenneth Fortino ; Lesley B. Knoll ; Pirkko L. Kortelainen ; Tiit Kuster ; Soren Larsen ; Isabelle Laurion ; Dina M. Leech ; S. Leigh McCallister ; Diane M. McKnight ; John Michael Melack ; Erin Overholt ; Jason A. Porter ; Yves Prairie ; William H. Renwick ; Fabio Roland ; Bradford Sherman ; David W. Schindler (1940-2021) ; Sebastian Sobek ; Alain Tremblay ; Michael J. Vanni ; Antonie M. Verschoor ; Eddie (von) Wachenfelt ; Gesa A. Weyhenmeyer Année de publication : 2009 Article en page(s) : 2298-2314 Langues : Anglais (eng) Catégories : [LOTERRE-Biodiversité] Changement climatique
[CBNPMP-Thématique] Lac d'altitudeRésumé : We explore the role of lakes in carbon cycling and global climate, examine the mechanisms influencing carbon pools and transformations in lakes, and discuss how the metabolism of carbon in the inland waters is likely to change in response to climate. Furthermore, we project changes as global climate change in the abundance and spatial distribution of lakes in the biosphere, and we revise the estimate for the global extent of carbon transformation in inland waters. This synthesis demonstrates that the global annual emissions of carbon dioxide from inland waters to the atmosphere are similar in magnitude to the carbon dioxide uptake by the oceans and that the global burial of organic carbon in inland water sediments exceeds organic carbon sequestration on the ocean floor. The role of inland waters in global carbon cycling and climate forcing may be changed by human activities, including construction of impoundments, which accumulate large amounts of carbon in sediments and emit large amounts of methane to the atmosphere. Methane emissions are also expected from lakes on melting permafrost. The synthesis presented here indicates that (1) inland waters constitute a significant component of the global carbon cycle, (2) their contribution to this cycle has significantly changed as a result of human activities, and (3) they will continue to change in response to future climate change causing decreased as well as increased abundance of lakes as well as increases in the number of aquatic impoundments. Lien pérenne : DOI : 10.4319/lo.2009.54.6_part_2.2298 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=152304
in Limnology and oceanography > 54 (6-2) (November 2009) . - 2298-2314Tranvik, Lars J., Downing, John A., Cotner, James B., Loiselle, Steven A., Striegl, Robert G., Ballatore, Thomas J., Dillon, Peter, Finlay, Kerri, Fortino, Kenneth, Knoll, Lesley B., Kortelainen, Pirkko L., Kuster, Tiit, Larsen, Soren, Laurion, Isabelle, Leech, Dina M., Leigh McCallister, S., McKnight, Diane M., Melack, John Michael, Overholt, Erin, Porter, Jason A., Prairie, Yves, Renwick, William H., Roland, Fabio, Sherman, Bradford, Schindler, David W. (1940-2021), Sobek, Sebastian, Tremblay, Alain, Vanni, Michael J., Verschoor, Antonie M., Wachenfelt, Eddie (von), Weyhenmeyer, Gesa A. 2009 Lakes and reservoirs as regulators of carbon cycling and climate. Limnology and oceanography, 54(6-2): 2298-2314.Documents numériques
Article (2009)URL
