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High mountain lakes and atmospherically transported pollutants / Richard William Battarbee (2005)

Public Citation est un extrait de Global change and mountain regions / Uli M. Huber (2005) Titre : High mountain lakes and atmospherically transported pollutants Type de document : Extrait d'ouvrage Auteurs : Richard William Battarbee (1947-) ; Uli M. Huber ; Harald K. M. Bugmann ; Mel A. Reasoner ; Martin Beniston ; Simon Patrick ; Martin Kernan ; Roland Psenner (1950-) ; Hansjoerg Thies ; Joan Grimalt ; Bjoern O. Rosseland ; Bente Wathne ; Jordi Catalán ; Rosario Mosello ; Andrea Lami ; David Livingstone ; Evzen Stuchlik ; Vera Straskrabova ; Gunnar Raddum Editeur : Dordrecht : Springer Netherlands Année de publication : 2005 Importance : 113-121 Catégories : [CBNPMP-Thématique] Enjeux de conservation des lacs d'altitude [CBNPMP-Thématique] Etude d'aménagement, étude d'impact, actions anthropiques et leur impact [CBNPMP-Thématique] Lac d'altitude Résumé : Remote mountain lakes, whether found at high altitudes or high latitudes, usually appear to be in pristine condition. In particular, those lakes that are situated above or beyond the tree-line are rarely disturbed by agricultural or forestry practices and few if any people inhabit their catchments. However, recent research indicates that even the most remote lakes are impacted by atmospherically transported pollutants, and that greenhouse-gas forced climate change is beginning to have a significant influence on ecosystem functioning. UV-B radiation is also increasing and, in interaction with global warming, may already be changing biogeochemical cycles in many mountain lakes (Vinebrooke and Leavitt, this volume). All sites are subject to multiple stresses, and studies of the ecological response of mountain lakes to such combined stress need to consider interactions between all factors, both natural and anthropogenic. In this chapter, we consider acid deposition, toxic substances and climate change as the three main drivers of ecosystem change in high mountain lakes. Lien pérenne : DOI : 10.1007/1-4020-3508-X_12 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=147857 Battarbee, Richard William (1947-), Huber, Uli M., Bugmann, Harald K. M., Reasoner, Mel A., Beniston, Martin, Patrick, Simon, Kernan, Martin, Psenner, Roland (1950-), Thies, Hansjoerg, Grimalt, Joan, Rosseland, Bjoern O., Wathne, Bente, Catalán, Jordi, Mosello, Rosario, Lami, Andrea, Livingstone, David, Stuchlik, Evzen, Straskrabova, Vera, Raddum, Gunnar 2005 High mountain lakes and atmospherically transported pollutants. In: Global change and mountain regions. Springer Netherlands, Dordrecht: 113-121.

The chemical and biological response of two remote mountain lakes in the Southern Central Alps (Italy) to twenty years of changing physical and chemical climate / Aldo Marchetto in Journal of limnology, 63 (1) (2004) 

Public Citation [article]  inJournal of limnology > 63 (1) (2004) . - 77-89 Titre : The chemical and biological response of two remote mountain lakes in the Southern Central Alps (Italy) to twenty years of changing physical and chemical climate Type de document : Imprimé Auteurs : Aldo Marchetto ; Rosario Mosello ; Michela Rogora ; Marina Manca ; Angela Boggero ; Giuseppe Morabito ; Simona Musazzi ; Gabriele Tartari ; Anna M. Nocentini ; Alessandra Pugnetti ; Roberta Bettinetti ; Pierisa Panzani ; Michele Armiraglio ; Pierluigi Cammarano ; Andrea Lami Année de publication : 2004 Article en page(s) : 77-89 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Lac d'altitude Résumé : Two small high mountain lakes in the Alps were monitored in 1984-2003 to follow their response to changes in human impact, such as deposition of atmospheric pollutants, fish stocking and climate change. The results were compared to occasional samplings performed in the 1940s, and to the remains found in sediment cores. When monitoring started, the most acid-sensitive of them, Lake Paione Superiore, was acidified, with evident effects in its flora and fauna: benthic diatoms assemblage was shifted towards acidophilous species, and zooplankton lost the dominant species, Arctodiaptomus alpinus. Palaeolimnological studies outlined that lake acidification paralleled the increasing input of long-range transported industrial pollutants, traced by spherical carbonaceous particles. On the contrary, the biota of Lake Paione Inferiore appeared to be mainly affected by fish stocking. In the last twenty years, decrease in acid load from the atmosphere led to an improvement in lake water quality, with an increase in both pH and alkalinity. First signs of biological recovery were identified, such as change in diatom flora and appearance of sensitive species among benthic insects. However, climate change and episodic deposition of Saharan dust were important driving factors controlling lake water chemistry. Further monitoring to assess the effects of climate change and of the increasing load of nitrogen and other pollutants is recommended. Lien pérenne : DOI : 10.4081/jlimnol.2004.77 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=152307 Marchetto, Aldo, Mosello, Rosario, Rogora, Michela, Manca, Marina, Boggero, Angela, Morabito, Giuseppe, Musazzi, Simona, Tartari, Gabriele, Nocentini, Anna M., Pugnetti, Alessandra, Bettinetti, Roberta, Panzani, Pierisa, Armiraglio, Michele, Cammarano, Pierluigi, Lami, Andrea 2004 The chemical and biological response of two remote mountain lakes in the Southern Central Alps (Italy) to twenty years of changing physical and chemical climate. Journal of limnology, 63(1): 77-89.

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