| Title | Lake Jezero v Ledvici ( NW Slovenia) - changes in sediment records over the last two centuries |
| Abstract | Lake Jezero v Ledvici ( NW Slovenia) is a 14 m deep mountain lake at an elevation of 1860 m, situated on limestone bedrock. It is an oligotrophic, alkaline and hard-water lake with a transparency of about 14 m and has suffered several times over recent centuries from strong earthquakes. In 1996 five sediment cores, between 35 and 45 cm long, were collected from the deepest part of the lake and analysed to reconstruct environmental changes over the last few centuries. The data indicate changes induced by pollution and climate change during the last two centuries similar to those in other European mountain and remote lakes. However, at this site earthquakes have also affected the lake and partly obscure the interpretation of the sediment record. From 1780 to 1890, sediment records show low abundance of diatoms and relatively high abundance of Cladocera. After 1890, the number of diatoms started to increase coinciding with a strong earthquake. From the beginning of the 20th century, concentrations of spheroidal carbonaceous particles (SCP), diatom valves and head capsules of chironomids gradually increased whilst in Cladocera the main difference observed was a change in the proportion of benthic taxa. After 1960, in parallel with a rise in air temperature, a further increase in accumulation rate of diatoms started, but there was a decrease in Cladocera. |
| Source | Journal of paleolimnology 28 (1), pp. 47–58 |
| Keywords | mountain lakeclimate changepollutionmulti-proxypalaeolimnologySloveniaearthquakes |
| Journal | Journal of paleolimnology |
| Editor | Kluwer Academic, Boston, Paesi Bassi |
| Year | 2002 |
| Type | Articolo in rivista |
| DOI | 10.1023/A:1020367818144 |
| Authors | Brancelj, A; Sisko, M; Muri, G; Appleby, P; Lami, A; Shilland, E; Rose, NL; Kamenik, C; Brooks, SJ; Dearing, JA |
| Text | 407943 2002 10.1023/A 1020367818144 ISI Web of Science WOS 000178212200004 mountain lake climate change pollution multi proxy palaeolimnology Slovenia earthquakes Lake Jezero v Ledvici NW Slovenia changes in sediment records over the last two centuries Brancelj, A; Sisko, M; Muri, G; Appleby, P; Lami, A; Shilland, E; Rose, NL; Kamenik, C; Brooks, SJ; Dearing, JA Natl Inst Biol; Univ Liverpool; CNR; UCL; Austrian Acad Sci; Nat Hist Museum; Univ Liverpool Lake Jezero v Ledvici NW Slovenia is a 14 m deep mountain lake at an elevation of 1860 m, situated on limestone bedrock. It is an oligotrophic, alkaline and hard water lake with a transparency of about 14 m and has suffered several times over recent centuries from strong earthquakes. In 1996 five sediment cores, between 35 and 45 cm long, were collected from the deepest part of the lake and analysed to reconstruct environmental changes over the last few centuries. The data indicate changes induced by pollution and climate change during the last two centuries similar to those in other European mountain and remote lakes. However, at this site earthquakes have also affected the lake and partly obscure the interpretation of the sediment record. From 1780 to 1890, sediment records show low abundance of diatoms and relatively high abundance of Cladocera. After 1890, the number of diatoms started to increase coinciding with a strong earthquake. From the beginning of the 20th century, concentrations of spheroidal carbonaceous particles SCP , diatom valves and head capsules of chironomids gradually increased whilst in Cladocera the main difference observed was a change in the proportion of benthic taxa. After 1960, in parallel with a rise in air temperature, a further increase in accumulation rate of diatoms started, but there was a decrease in Cladocera. 28 Published version Articolo in rivista Kluwer Academic 0921 2728 Journal of paleolimnology Journal of paleolimnology J. paleolimnol. andrea.lami LAMI ANDREA MOLAR Measuring and modelling the dynamic response of remote mountain lake ecosystems to environmental change. A programme of mountain lake research |
