Holocene climate variability as reflected by mid-European lake-level fluctuations and its probable impact on prehistoric human settlements

Magny, Michel

doi:10.1016/s1040-6182(03)00080-6

Cited by 737 publications

(874 citation statements)

References 43 publications

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“…The same tendency was noted in other lakes in northern Poland (Ralska-Jasiewiczowa and Starkel 1988; Kupryjanowicz et al 2009) and central Poland (Pazdur et al 1995), as well as in central Europe (e.g., the Jura Mountains, the northern French Alps, and the Swiss Plateau (Magny and Ruffaldi 1995;Magny et al 2001;Magny 2004) and northern Europe [e.g., Finland (Ikonen 1993) and Estonia (Punning et al 2003)]. In the case of L. Suchar II, which has a very small catchment and catchment: lake ratio (9.7 ha and 3.73, respectively), this drop in water level may have been especially pronounced.…”

Section: Lake Suchar IIsupporting

confidence: 71%

Reconstruction of landscape paleohydrology using the sediment archives of three dystrophic lakes in northeastern Poland

2013

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Sediment layers of uniform age within lakes (isochrones) and their patterns reflect accumulation processes which can be correlated with hydrologic conditions in lake basins. The sedimentary archives in three small dystrophic lakes in northeastern Poland are described based on the correlation of local pollen assemblage zones in cores that were collected from the centers and margins of each lake. Past regional groundwater levels could be discerned from the shape of the isochrones, whether plane parallel or concave in configuration in relation to the lake basin shape. The concave configuration of the isochrones in the studied lakes shows that regional groundwater levels remained mostly high and stable throughout their history. The water levels in each lake during the Late Glacial and throughout the Holocene were different and no single, common water-level fluctuation pattern was identified in the three water bodies. The lack of such a finding suggests that the lakes are influenced dominantly by local hydrological factors.

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Section: Lake Suchar IIsupporting

confidence: 71%

Reconstruction of landscape paleohydrology using the sediment archives of three dystrophic lakes in northeastern Poland

2013

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“…Similarly, a general lowering of lake levels was described for the Swiss Plateau from 1150 to 800 b.c. (Magny 2004). This lowering of lake levels apparently coincided with the end of the warm phase on the Swiss Plateau and in the southern Alps, which is set at ∼1250 b.c., whereas the beginning of the subsequent cold phase is set at ∼1000 b.c.…”

Section: Human Impact On Vegetation During the Bronze Agementioning

confidence: 87%

Human impact during the Bronze Age on the vegetation at Lago Lucone (northern Italy)

Valsecchi

Tinner

Finsinger

et al. 2005

Veget Hist Archaeobot

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Lake-sediment records were used to reconstruct human impact on the landscape around Lago Lucone (45 • 33 N, 10 • 29 E, 249 m a.s.l.), a former lake in the western amphitheatre system of the Lago di Garda. Presence of prehistoric human populations is attested by pile-dwelling settlements from the Early-Middle Bronze Age, with one settlement at a distance of only 100 m from the coring site. Pollen, plant-macrofossil and microscopic charcoal analyses were applied to a 250 cm sediment core with four dates providing the time control. A mixed oak forest that was important during the Early-Middle Holocene was cleared and replaced by open vegetation during the Bronze Age (∼2000-1100 b.c.) when open lands were estimated to have covered more than 60% of the total relevant pollen-source area. During a phase of high human impact, independent climatic proxies suggest warm and dry climatic conditions. Later, ca. 1100 b.c., palaeobotanical evidence indicates a sharp decrease in human pressure in the Lago Lucone area. The comparison with other sedimentary palaeocultural records shows that the period 1300-1100 b.c. was characterised by general declines of agricultural activities both south and north of the Alps. These declines have been previously attributed to a change towards wetter and colder climatic conditions in and around the Alps. However, the decline in human impact around Lago Lucone cannot be exclusively attributed to climatic variation. Therefore other V. Valsecchi ( ) · W. Tinner · W. Finsinger · B. Ammann

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“…Denton and Karlén (1973) linked the radiocarbon record with geologic data such as the extension of glaciers and made important conclusions about solar forcing of climate change. Magny (2004Magny ( , 2007 published a long record of Holocene climate-related water table changes in lakes in south-eastern France and adjacent Switzerland. The lake-level fluctuations closely correspond with the atmospheric 14 C fluctuations and therefore also with the cosmogenicisotope derived history of solar activity.…”

Section: Inter-proxy Comparisonsmentioning

confidence: 99%

Development and refinement of proxy-climate indicators from peats

Chambers

Booth

Vleeschouwer

et al. 2012

Quaternary International

159

104

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 11364 The Netherlands a b s t r a c t Peat, especially from acidic mires (bogs), is a natural archive of past environmental change. Reconstructions of past climate from bogs commenced in the 19th Century through examination of visible peat stratigraphy, and later formed the basis for a postglacial climatic scheme widely used in Northwest Europe. Nevertheless, misconceptions as to how bogs grow led to a 50-year lacuna in peat-climate study, before the concept of 'cyclic regeneration' in bogs was refuted. In recent decades, research using proxyclimate indicators from bogs has burgeoned. A range of proxies for past hydrological change has been developed, as well as use of pollen, bog oaks and pines and other data to reconstruct past temperatures. Most of this proxy-climate research has been carried out in Northern Europe, but peat-based research in parts of Asia and North America has increased, particularly during the last decade, while research has also been conducted in Australia, New Zealand and South America. This paper reviews developments in proxy-climate reconstructions from peatlands; chronicles use of a range of palaeo-proxies such as visible peat stratigraphy, plant macrofossils, peat humification, testate amoebae and non-pollen palynomorphs; and explains the use of wiggle-match radiocarbon dating and relationship to climate shifts. It details other techniques being used increasingly, such as biomarkers, stable-isotopes, inorganic geochemistry and estimation of dust flux; and points to new proxies under development. Although explicit protocols have been developed recently for research on ombrotrophic mires, it must be recognised that not all proxies and techniques have universal applicability, owing to differences in species assemblages, mire formation, topographic controls, and geochemical characteristics.

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Holocene climate variability as reflected by mid-European lake-level fluctuations and its probable impact on prehistoric human settlements

Cited by 737 publications

References 43 publications

Reconstruction of landscape paleohydrology using the sediment archives of three dystrophic lakes in northeastern Poland

Reconstruction of landscape paleohydrology using the sediment archives of three dystrophic lakes in northeastern Poland

Human impact during the Bronze Age on the vegetation at Lago Lucone (northern Italy)

Development and refinement of proxy-climate indicators from peats

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