Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | LTER Italy: Long term research in high altitude lakes in the Himalayas |
| Abstract | Among the long term measurements initiative, we highlight here some results from the long term research carried out in the Himalayas on a LTER-Italy site: Lake Pyramid. The research activity were carried out in the framework of the SHARE Project (Station at High Altitudes for Research on the Environment). The main objective of SHARE is to assure a continuous environmental monitoring in mountain sites through long-term, high quality data series and contributing to the study of climate changes impacts and adaptation strategies in high mountain regions by making the obtained information available to governments and international agencies. Limnological survey (including chemistry, biology, and sediment core studies) of lakes located between ca. 4500 and 5500 m a.s.l. have been performed nearly every year from 1992 in the Khumbu Valley, Nepal. As an example, among the many possible, here we refer the research focused on the two lakes located near the Pyramid Laboratory in the Khumbu Valley. Lake water chemical surveys over the period 1992-2002 reveal a constant increase of the ionic content of the lake water probably related to glacier retreat. Analysis of the benthic fauna reveals shifts in species composition probably as a response to the recent warming. Paleolimnological reconstructions show the potential use of these sites in providing proxy data of past climatic changes displaying an alternance of warmer/wetter and cooler/drier periods. Future research activities will be needed to integrate lakes, wetland and stream habitats at a catchment scale and to focus on the key drivers of aquatic system change (nutrients, acid deposition, toxic substances) and their interaction with global drivers such as climate using time-series analysis, paleolimnology, experiments, and process modelling at different time scales (seasons/years and decades/millennia). |
| Source | MUW13: Mountain Under Watch, Aosta, 20-21 febbraio 2013 |
| Keywords | LTERRemote lakesWater chemistryBiodiversityPaleolimnology |
| Year | 2013 |
| Type | Poster |
| Authors | Andrea Lami; Simona Musazzi; Michela Rogora; Angela Boggero; Marina Manca; Gabriele Tartari; Aldo Marchetto; Piero Guilizzoni; Franco Salerno; Gianni Tartari |
| Text | 282643 2013 LTER Remote lakes Water chemistry Biodiversity Paleolimnology LTER Italy Long term research in high altitude lakes in the Himalayas Andrea Lami; Simona Musazzi; Michela Rogora; Angela Boggero; Marina Manca; Gabriele Tartari; Aldo Marchetto; Piero Guilizzoni; Franco Salerno; Gianni Tartari Andrea Lami; Simona Musazzi; Michela Rogora; Angela Boggero; Marina Manca; Gabriele Tartari; Aldo Marchetto; Piero Guilizzoni CNR ISE VB Franco Salerno; Gianni Tartari CNR IRSA BRUGHERIO Among the long term measurements initiative, we highlight here some results from the long term research carried out in the Himalayas on a LTER Italy site Lake Pyramid. The research activity were carried out in the framework of the SHARE Project Station at High Altitudes for Research on the Environment . The main objective of SHARE is to assure a continuous environmental monitoring in mountain sites through long term, high quality data series and contributing to the study of climate changes impacts and adaptation strategies in high mountain regions by making the obtained information available to governments and international agencies. Limnological survey including chemistry, biology, and sediment core studies of lakes located between ca. 4500 and 5500 m a.s.l. have been performed nearly every year from 1992 in the Khumbu Valley, Nepal. As an example, among the many possible, here we refer the research focused on the two lakes located near the Pyramid Laboratory in the Khumbu Valley. Lake water chemical surveys over the period 1992 2002 reveal a constant increase of the ionic content of the lake water probably related to glacier retreat. Analysis of the benthic fauna reveals shifts in species composition probably as a response to the recent warming. Paleolimnological reconstructions show the potential use of these sites in providing proxy data of past climatic changes displaying an alternance of warmer/wetter and cooler/drier periods. Future research activities will be needed to integrate lakes, wetland and stream habitats at a catchment scale and to focus on the key drivers of aquatic system change nutrients, acid deposition, toxic substances and their interaction with global drivers such as climate using time series analysis, paleolimnology, experiments, and process modelling at different time scales seasons/years and decades/millennia . In MUW13 Mountain Under Watch Aosta, 20 21 febbraio 2013 . MUW13 Mountain Under Watch Aosta 20 21 febbraio 2013 Internazionale Contributo Poster Poster_Lami_PyrLake.pdf Poster simona.musazzi MUSAZZI SIMONA angela.boggero BOGGERO ANGELA aldo.marchetto MARCHETTO ALDO piero.guilizzoni GUILIZZONI PIERO michela.rogora ROGORA MICHELA franco.salerno SALERNO FRANCO andrea.lami LAMI ANDREA gabriele.tartari TARTARI GABRIELE gianni.tartari TARTARI GIANNI marinamarcella.manca MANCA MARINA MARCELLA TA.P02.014.002 Impatto dei cambiamenti globali sugli ecosistemi acquatici |