| Abstract | Here we present the chemical trends of seven high altitude lakes, analysed within the
AL:PE and MOLAR Projects of the EU (1999) and selected on the basis of the availability of
complete and reliable data for the period 1984-1999. The lakes are representative of the Scandinavian
Alps, the Cairngorm Mountains in Scotland, the Alps and the Pyrenees. Significant trends
were identified for some indicators of acidification, for instance pH and alkalinity, but not all lakes
reacted similarly to decreasing depositions of sulphate and base cations. Differences in lake response
are discussed in relation to recent variations of atmospheric deposition chemistry and associated
changes in climatic conditions. Beside individual variations of the studied lakes, depending, among
other things, on altitude and morphology, catchment characteristics and climate trends play a major
role for the reaction of high altitude lakes on changes in atmospheric depositions. |
| Authors | Mosello R., Lami A., Marchetto A., Rogora M., Wathne B., Lien L., Catalan J., Camarero L., Ventura M., Psenner R., Koinig K., Thies H., Sommaruga-Wograth S., Nickus U., Tait D., Thaler B., Barbieri A., Harriman R. |
| Text | 71732 2002 acidification atmospheric deposition remote lakes trend water chemistry Trends in the water chemistry of high altitude lakes in Europe Mosello R., Lami A., Marchetto A., Rogora M., Wathne B., Lien L., Catalan J., Camarero L., Ventura M., Psenner R., Koinig K., Thies H., Sommaruga Wograth S., Nickus U., Tait D., Thaler B., Barbieri A., Harriman R. CNR Istituto Italiano di Idrobiologia, Verbania Pallanza, Italy; 2 Norwegian Institute for Water Research, Kjelsas, Oslo, Norway; 3 University of Barcelona, Dept. Ecology, Barcelona, Spain; 4 University of Innsbruck, Inst. Zoology and Limnology, Innsbruck, Austria; 5 University of Innsbruck, Inst. Meteorology, Innsbruck, Austria; 6 Laboratorio Biologico APPA, Laives BZ , Italy; 7 Laboratorio Studi Ambientali, Sez. Protezione Aria Acqua, Dip. Territorio Ambiente, Lugano, Switzerland; 8 Freshwater Fisheries Laboratory, Pitlochry, Perthshire, Scotland, U.K. Here we present the chemical trends of seven high altitude lakes, analysed within the AL PE and MOLAR Projects of the EU 1999 and selected on the basis of the availability of complete and reliable data for the period 1984 1999. The lakes are representative of the Scandinavian Alps, the Cairngorm Mountains in Scotland, the Alps and the Pyrenees. Significant trends were identified for some indicators of acidification, for instance pH and alkalinity, but not all lakes reacted similarly to decreasing depositions of sulphate and base cations. Differences in lake response are discussed in relation to recent variations of atmospheric deposition chemistry and associated changes in climatic conditions. Beside individual variations of the studied lakes, depending, among other things, on altitude and morphology, catchment characteristics and climate trends play a major role for the reaction of high altitude lakes on changes in atmospheric depositions. 2 Published version Trends in the water chemistry of high altitude lakes in Europe WASP_focus_Trend_alpinelakes.pdf Articolo in rivista Kluwer Academic Publishers 1567 7230 Water, air, soil pollution. Focus Water, air, soil pollution. Focus Water, air soil pollution. Water, air, and soil pollution aldo.marchetto MARCHETTO ALDO michela.rogora ROGORA MICHELA andrea.lami LAMI ANDREA rosario.mosello MOSELLO ROSARIO |
