Articles | Volume 71, issue 1
https://doi.org/10.5194/egqsj-71-91-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/egqsj-71-91-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
24 May 2022
Research article |
| 24 May 2022
| 24 May 2022
Holocene vegetation reconstruction in the forest–steppe of Mongolia based on leaf waxes and macro-charcoals in soils
Marcel Lerch
Heisenberg Chair of Physical Geography with Focus on
Paleoenvironmental Research, Institute of Geography, Technische
Universität Dresden, Helmholtzstraße 10, 01069 Dresden, Germany
Julia Unkelbach
Department of Palynology and Climate Dynamics, Albrecht-von-Haller-Institute for Plant Sciences, University of Göttingen, Untere Karspüle 2, 37073 Göttingen, Germany
Florian Schneider
Department of Physical Geography, Institute of Geography, University of Göttingen, Goldschmidtstr. 5, 37077 Göttingen, Germany
Michael Zech
Heisenberg Chair of Physical Geography with Focus on
Paleoenvironmental Research, Institute of Geography, Technische
Universität Dresden, Helmholtzstraße 10, 01069 Dresden, Germany
Department of Physical Geography, Institute of Geography, University of Göttingen, Goldschmidtstr. 5, 37077 Göttingen, Germany
Related authors
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Lucas Bittner, Cindy De Jonge, Graciela Gil-Romera, Henry F. Lamb, James M. Russell, and Michael Zech
Biogeosciences, 19, 5357–5374, https://doi.org/10.5194/bg-19-5357-2022, https://doi.org/10.5194/bg-19-5357-2022, 2022
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With regard to global warming, an understanding of past temperature changes is becoming increasingly important. Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are membrane lipids used globally to reconstruct lake water temperatures. In the Bale Mountains lakes, we find a unique composition of brGDGT isomers. We present a modified local calibration and a new high-altitude temperature reconstruction from the Horn of Africa spanning the last 12.5 kyr.
Jakob Labahn, Lucas Bittner, Philip Hirschmann, Christopher-Bastian Roettig, Diana Burghardt, Bruno Glaser, Slobodan B. Marković, and Michael Zech
E&G Quaternary Sci. J., 71, 83–90, https://doi.org/10.5194/egqsj-71-83-2022, https://doi.org/10.5194/egqsj-71-83-2022, 2022
Marcel Lerch, Tobias Bromm, Clemens Geitner, Jean Nicolas Haas, Dieter Schäfer, Bruno Glaser, and Michael Zech
Biogeosciences, 19, 1135–1150, https://doi.org/10.5194/bg-19-1135-2022, https://doi.org/10.5194/bg-19-1135-2022, 2022
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Faecal biomarker analyses present a useful tool in geoarcheological research. For a better understanding of the lives of our ancestors in alpine regions, we investigated modern livestock faeces and Holocene soils at the prehistorical encampment site of Ullafelsen in the Fotsch Valley, Stubai Alps, Austria. Initial results show a high input of livestock faeces and a negligible input of human faeces for this archeological site. Future studies will focus on mire archives in the Fotsch Valley.
Florian Schneider, Michael Klinge, Jannik Brodthuhn, Tino Peplau, and Daniela Sauer
SOIL, 7, 563–584, https://doi.org/10.5194/soil-7-563-2021, https://doi.org/10.5194/soil-7-563-2021, 2021
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The central Mongolian forest steppe underlies a recent decline of forested area. We analysed the site and soil properties in the Khangai Mountains to identify differences between disturbed forest areas with and without regrowth of trees. More silty soils were found under areas with tree regrowth and more sandy soils under areas without tree regrowth. Due to the continental, semi-arid climate, soil properties which increase the amount of available water are decisive for tree regrowth in Mongolia.
Michael Zech, Marcel Lerch, Marcel Bliedtner, Tobias Bromm, Fabian Seemann, Sönke Szidat, Gary Salazar, Roland Zech, Bruno Glaser, Jean Nicolas Haas, Dieter Schäfer, and Clemens Geitner
E&G Quaternary Sci. J., 70, 171–186, https://doi.org/10.5194/egqsj-70-171-2021, https://doi.org/10.5194/egqsj-70-171-2021, 2021
Lucas Dugerdil, Sébastien Joannin, Odile Peyron, Isabelle Jouffroy-Bapicot, Boris Vannière, Bazartseren Boldgiv, Julia Unkelbach, Hermann Behling, and Guillemette Ménot
Clim. Past, 17, 1199–1226, https://doi.org/10.5194/cp-17-1199-2021, https://doi.org/10.5194/cp-17-1199-2021, 2021
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Since the understanding of Holocene climate change appears to be a relevant issue for future climate change, the paleoclimate calibrations have to be improved. Here, surface samples from Mongolia and Siberia were analyzed to provide new calibrations for pollen and biomarker climate models. These calibrations appear to be more powerful than global calibrations, especially in an arid central Asian context. These calibrations will improve the understanding of monsoon Holocene oscillations.
Christopher Lüthgens, Daniela Sauer, and Michael Zech
E&G Quaternary Sci. J., 69, 261–262, https://doi.org/10.5194/egqsj-69-261-2021, https://doi.org/10.5194/egqsj-69-261-2021, 2021
Michael Klinge, Choimaa Dulamsuren, Florian Schneider, Stefan Erasmi, Markus Hauck, Uudus Bayarsaikhan, and Daniela Sauer
Biogeosciences Discuss., https://doi.org/10.5194/bg-2020-13, https://doi.org/10.5194/bg-2020-13, 2020
Manuscript not accepted for further review
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The Mongolian forest-steppe suffers from fire and woodcutting. The forest distribution was analysed by tree biomass, remote sensing and climate data. Tree biomass was reduced at forest edges and in small forest, and high in alluvial forests. The actual tree biomass represented 57 % of that in 1986, prior to extensive fires. Relationships between forests and topographic and climatic parameters enable modelling of potential forest, which is about three times the actual forest area.
Johannes Hepp, Imke Kathrin Schäfer, Verena Lanny, Jörg Franke, Marcel Bliedtner, Kazimierz Rozanski, Bruno Glaser, Michael Zech, Timothy Ian Eglinton, and Roland Zech
Biogeosciences, 17, 741–756, https://doi.org/10.5194/bg-17-741-2020, https://doi.org/10.5194/bg-17-741-2020, 2020
Christopher Lüthgens, Daniela Sauer, Michael Zech, Becky Briant, Eleanor Brown, Elisabeth Dietze, Markus Fuchs, Nicole Klasen, Sven Lukas, Jan-Hendrik May, Julia Meister, Tony Reimann, Gilles Rixhon, Zsófia Ruszkiczay-Rüdiger, Bernhard Salcher, Tobias Sprafke, Ingmar Unkel, Hans von Suchodoletz, and Christian Zeeden
E&G Quaternary Sci. J., 68, 243–244, https://doi.org/10.5194/egqsj-68-243-2020, https://doi.org/10.5194/egqsj-68-243-2020, 2020
Bruk Lemma, Betelhem Mekonnen, Bruno Glaser, Wolfgang Zech, Sileshi Nemomissa, Tamrat Bekele, Lucas Bittner, and Michael Zech
E&G Quaternary Sci. J., 68, 189–200, https://doi.org/10.5194/egqsj-68-189-2019, https://doi.org/10.5194/egqsj-68-189-2019, 2019
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Chemotaxonomic identification of keystone plant species in the Bale Mountains are possible using lignin phenols. However, Erica could not be differentiated chemotaxonomically from all other investigated plants using n-alkanes. Unambiguous characteristic patterns of lignin phenols reflected in the plant samples were not sustained in the organic layers and mineral topsoils. This is due to degradation and organic matter inputs by roots. Therefore, the past extent of Erica is still speculative.
Betelhem Mekonnen, Wolfgang Zech, Bruno Glaser, Bruk Lemma, Tobias Bromm, Sileshi Nemomissa, Tamrat Bekele, and Michael Zech
E&G Quaternary Sci. J., 68, 177–188, https://doi.org/10.5194/egqsj-68-177-2019, https://doi.org/10.5194/egqsj-68-177-2019, 2019
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The study evaluates the ability of stable isotopes (δ13C and δ15N) and sugar biomarkers to distinguish Erica from the dominant vegetation of the Bale Mountains in order to reconstruct the past extent of Erica on the Sanetti Plateau. No significant differences in stable isotopes are found between the dominant plant species. Although Erica is characterized by quite high (G+M)/(A+X) ratios, it cannot be unambiguously distinguished from other plants due to degradation and soil microbial effects.
Johannes Hepp, Lorenz Wüthrich, Tobias Bromm, Marcel Bliedtner, Imke Kathrin Schäfer, Bruno Glaser, Kazimierz Rozanski, Frank Sirocko, Roland Zech, and Michael Zech
Clim. Past, 15, 713–733, https://doi.org/10.5194/cp-15-713-2019, https://doi.org/10.5194/cp-15-713-2019, 2019
Michael Klinge, Choimaa Dulamsuren, Stefan Erasmi, Dirk Nikolaus Karger, and Markus Hauck
Biogeosciences, 15, 1319–1333, https://doi.org/10.5194/bg-15-1319-2018, https://doi.org/10.5194/bg-15-1319-2018, 2018
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Treelines are one of the most obvious borders between vegetation units and can easily be detected by remote sensing. They provide information on climate conditions and human impact on forest distribution. Performing a GIS analysis by combining different datasets leads to detection of the major determining factors for current forest distribution and helps to evaluate past and future conditions for tree growth. This is especially feasible for regions without extensive forest management.
Marcel Lerch, Marcel Bliedtner, Christopher-Bastian Roettig, Jan-Uwe Schmidt, Sönke Szidat, Gary Salazar, Roland Zech, Bruno Glaser, Arno Kleber, and Michael Zech
E&G Quaternary Sci. J., 66, 103–108, https://doi.org/10.5194/egqsj-66-103-2018, https://doi.org/10.5194/egqsj-66-103-2018, 2018
Imke K. Schäfer, Verena Lanny, Jörg Franke, Timothy I. Eglinton, Michael Zech, Barbora Vysloužilová, and Roland Zech
SOIL, 2, 551–564, https://doi.org/10.5194/soil-2-551-2016, https://doi.org/10.5194/soil-2-551-2016, 2016
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For this study we systematically investigated the molecular pattern of leaf waxes in litter and topsoils along a European transect to assess their potential for palaeoenvironmental reconstruction. Our results show that leaf wax patterns depend on the type of vegetation. The vegetation signal is not only found in the litter; it can also be preserved to some degree in the topsoil.
M. Tuthorn, R. Zech, M. Ruppenthal, Y. Oelmann, A. Kahmen, H. F. del Valle, T. Eglinton, K. Rozanski, and M. Zech
Biogeosciences, 12, 3913–3924, https://doi.org/10.5194/bg-12-3913-2015, https://doi.org/10.5194/bg-12-3913-2015, 2015
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Stable water isotopes (18O/16O and 2H/1H) are invaluable proxies for paleoclimate research. Here we use a coupled 18O/16O and 2H/1H biomarker approach based on plant-derived sugars and n-alkanes. Applying this innovative approach to a topsoil transect allows for (i) calculating the deuterium-excess of leaf water as a proxy for relative humidity and (ii) calculating the plant source water isotopic composition (~precipitation). The approach is validated by the presented climate transect results.
M. Klinge, J. Böhner, and S. Erasmi
Biogeosciences, 12, 2893–2905, https://doi.org/10.5194/bg-12-2893-2015, https://doi.org/10.5194/bg-12-2893-2015, 2015
M. Zech, R. Zech, K. Rozanski, A. Hemp, G. Gleixner, and W. Zech
Biogeosciences Discuss., https://doi.org/10.5194/bgd-11-7823-2014, https://doi.org/10.5194/bgd-11-7823-2014, 2014
Preprint withdrawn
Related subject area
Paleo-environments
Reconstructing the Eemian to Middle Pleniglacial pedosedimentary evolution of the Baix loess–palaeosol sequence (Rhône Rift Valley, southern France) – basic chronostratigraphic framework and palaeosol characterisation
A 1100-year multi-proxy palaeoenvironmental record from Lake Höglwörth, Bavaria, Germany
Palaeoenvironmental research at Hawelti–Melazo (Tigray, northern Ethiopia) – insights from sedimentological and geomorphological analyses
Multi-method study of the Middle Pleistocene loess–palaeosol sequence of Köndringen, SW Germany
Fluvial activity of the late-glacial to Holocene “Bergstraßenneckar” in the Upper Rhine Graben near Heidelberg, Germany – first results
Investigating the loess–palaeosol sequence of Bahlingen-Schönenberg (Kaiserstuhl), southwestern Germany, using a multi-methodological approach
Evaluation of geochemical proxies and radiocarbon data from a loess record of the Upper Palaeolithic site Kammern-Grubgraben, Lower Austria
The Quaternary palaeobotany of Madeira and Azores volcanic archipelagos (Portugal): insights into the past diversity, ecology, biogeography and evolution
Local mineral dust transported by varying wind intensities forms the main substrate for loess in Kashmir
Palaeoenvironmental reconstruction on the basis of Quaternary palaeo dune sequences on Fuerteventura
Reconstruction of palaeoenvironmental variability based on an inter-comparison of four lacustrine archives on the Peloponnese (Greece) for the last 5000 years
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Coastal lowland and floodplain evolution along the lower reaches of the Supsa River (western Georgia)
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Nora Pfaffner, Annette Kadereit, Volker Karius, Thomas Kolb, Sebastian Kreutzer, and Daniela Sauer
E&G Quaternary Sci. J., 73, 1–22, https://doi.org/10.5194/egqsj-73-1-2024, https://doi.org/10.5194/egqsj-73-1-2024, 2024
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We present results of the Baix loess–palaeosol sequence, SE France. Reconstructed intense soil formation under warm, moist conditions before and into the last ice age and less intense soil formations in warm (temporarily moist) phases during the generally cold, dry ice age were validated with laboratory and dating techniques. This is particularly relevant as Baix is located in the temperate–Mediterranean climate transition zone, a sensitive zone that is susceptible to future climate changes.
Sudip Acharya, Maximilian Prochnow, Thomas Kasper, Linda Langhans, Peter Frenzel, Paul Strobel, Marcel Bliedtner, Gerhard Daut, Christopher Berndt, Sönke Szidat, Gary Salazar, Antje Schwalb, and Roland Zech
E&G Quaternary Sci. J., 72, 219–234, https://doi.org/10.5194/egqsj-72-219-2023, https://doi.org/10.5194/egqsj-72-219-2023, 2023
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This study presents a palaeoenvironmental record from Lake Höglwörth, Bavaria, Germany. Before 870 CE peat deposits existed. Erosion increased from 1240 to 1380 CE, followed by aquatic productivity and anoxia from 1310 to 1470 CE. Increased allochthonous input and a substantial shift in the aquatic community in 1701 were caused by construction of a mill. Recent anoxia has been observed since the 1960s.
Jacob Hardt, Nadav Nir, Christopher Lüthgens, Thomas M. Menn, and Brigitta Schütt
E&G Quaternary Sci. J., 72, 37–55, https://doi.org/10.5194/egqsj-72-37-2023, https://doi.org/10.5194/egqsj-72-37-2023, 2023
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We investigated the geomorphological and geological characteristics of the archaeological sites Hawelti–Melazo and the surroundings. We performed sedimentological analyses, as well as direct (luminescence) and indirect (radiocarbon) sediment dating, to reconstruct the palaeoenvironmental conditions, which we integrated into the wider context of Tigray.
Lea Schwahn, Tabea Schulze, Alexander Fülling, Christian Zeeden, Frank Preusser, and Tobias Sprafke
E&G Quaternary Sci. J., 72, 1–21, https://doi.org/10.5194/egqsj-72-1-2023, https://doi.org/10.5194/egqsj-72-1-2023, 2023
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The loess sequence of Köndringen, Upper Rhine Graben, comprises several glacial–interglacial cycles. It has been investigated using a multi-method approach including the measurement of colour, grain size, organic matter, and carbonate content. The analyses reveal that the sequence comprises several fossil soils and layers of reworked soil material. According to luminescence dating, it reaches back more than 500 000 years.
Max Engel, Felix Henselowsky, Fabian Roth, Annette Kadereit, Manuel Herzog, Stefan Hecht, Susanne Lindauer, Olaf Bubenzer, and Gerd Schukraft
E&G Quaternary Sci. J., 71, 213–226, https://doi.org/10.5194/egqsj-71-213-2022, https://doi.org/10.5194/egqsj-71-213-2022, 2022
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The late-glacial Bergstraßenneckar is a former course of the Neckar River in the Upper Rhine Graben of southwest Germany at a time when the confluence with the Rhine river was 50 km further to the north. The former river bends are still visible in topographic maps and satellite imagery. Sediment cores and geophysical measurements from the former river channels let us reconstruct the shift from a running river to silting-up meanders and permit us to date this to ca. 11 000 to 10 500 years ago.
Tabea Schulze, Lea Schwahn, Alexander Fülling, Christian Zeeden, Frank Preusser, and Tobias Sprafke
E&G Quaternary Sci. J., 71, 145–162, https://doi.org/10.5194/egqsj-71-145-2022, https://doi.org/10.5194/egqsj-71-145-2022, 2022
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A loess sequence in SW Germany was investigated using a high-resolution multi-method approach. It dates to 34–27 ka and comprises layers of initial soil formation. Drier conditions and a different atmospheric circulation pattern during the time of deposition are expected as the soil layers are less strongly developed compared to similar horizons further north. Dust accumulation predates the last advance of Alpine glaciers, and no loess deposition is recorded for the time of maximum ice extent.
Lilian Reiss, Christian Stüwe, Thomas Einwögerer, Marc Händel, Andreas Maier, Stefan Meng, Kerstin Pasda, Ulrich Simon, Bernd Zolitschka, and Christoph Mayr
E&G Quaternary Sci. J., 71, 23–43, https://doi.org/10.5194/egqsj-71-23-2022, https://doi.org/10.5194/egqsj-71-23-2022, 2022
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We aim at testing and evaluating geochemical proxies and material for radiocarbon dating for their reliability and consistency at the Palaeolithic site Kammern-Grubgraben (Lower Austria). While carbonate and organic carbon contents are interpreted in terms of palaeoclimate variability, pedogenic carbonates turned out to be of Holocene age. As a consequence, the proxy data assessed here are differentially suitable for environmental reconstructions.
Carlos A. Góis-Marques
E&G Quaternary Sci. J., 70, 197–199, https://doi.org/10.5194/egqsj-70-197-2021, https://doi.org/10.5194/egqsj-70-197-2021, 2021
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Palaeobotanical research on oceanic islands has been largely ignored despite its importance for providing empirical proofs to disentangle insular plant diversity, evolution, ecology and biogeography. Here we explore the oceanic archipelagos of Madeira and the Azores to demonstrate the existence of well-preserved and palaeobiologically informative plant fossils.
Christian Zeeden, Jehangeer Ahmad Mir, Mathias Vinnepand, Christian Laag, Christian Rolf, and Reyaz Ahmad Dar
E&G Quaternary Sci. J., 70, 191–195, https://doi.org/10.5194/egqsj-70-191-2021, https://doi.org/10.5194/egqsj-70-191-2021, 2021
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We investigate two loess–palaeosol sequences in Kashmir. Magnetic enhancement of the loess was strong during stadial phases. Besides classical magnetic enhancement, wind vigour suggests partly strong winds. Grain sizes are dominantly in the silt range and comparable to data from central Asia, which do not suggest transport over high mountain ranges as required for non-local sources in Kashmir. Therefore, we suggest that the Kashmir loess is predominantly of local origin.
Christopher-Bastian Roettig
E&G Quaternary Sci. J., 69, 161–163, https://doi.org/10.5194/egqsj-69-161-2020, https://doi.org/10.5194/egqsj-69-161-2020, 2020
Joana Seguin, Pavlos Avramidis, Annette Haug, Torben Kessler, Arndt Schimmelmann, and Ingmar Unkel
E&G Quaternary Sci. J., 69, 165–186, https://doi.org/10.5194/egqsj-69-165-2020, https://doi.org/10.5194/egqsj-69-165-2020, 2020
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We present two new palaeolake archives of Pheneos and Kaisari, Peloponnese, and compare them with records from Stymphalia and Asea by applying the same set of analyses to all sites. We focus on different spatial scales to estimate the validity range of the proxy signals. Geochemical ratios depict hydrological variation and environmental changes over the last 5000 years. They indicate drier phases, but timing and duration vary, which may be explained by site-specific ecosystem responses.
Wolfgang Knierzinger, Ruth Drescher-Schneider, Klaus-Holger Knorr, Simon Drollinger, Andreas Limbeck, Lukas Brunnbauer, Felix Horak, Daniela Festi, and Michael Wagreich
E&G Quaternary Sci. J., 69, 121–137, https://doi.org/10.5194/egqsj-69-121-2020, https://doi.org/10.5194/egqsj-69-121-2020, 2020
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We present multi-proxy analyses of a 14C-dated peat core covering the past ⁓5000 years from the ombrotrophic Pürgschachen Moor. Pronounced increases in cultural indicators suggest significant human activity in the Bronze Age and in the period of the late La Tène culture. We found strong, climate-controlled interrelations between the pollen record, the humification degree and the ash content. Human activity is reflected in the pollen record and by heavy metals.
Lutz Schirrmeister, Elisabeth Dietze, Heidrun Matthes, Guido Grosse, Jens Strauss, Sebastian Laboor, Mathias Ulrich, Frank Kienast, and Sebastian Wetterich
E&G Quaternary Sci. J., 69, 33–53, https://doi.org/10.5194/egqsj-69-33-2020, https://doi.org/10.5194/egqsj-69-33-2020, 2020
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Late Pleistocene Yedoma deposits of Siberia and Alaska are prone to degradation with warming temperatures.
Multimodal grain-size distributions of >700 samples indicate varieties of sediment production, transport, and deposition.
These processes were disentangled using robust endmember modeling analysis.
Nine robust grain-size endmembers characterize these deposits.
The data set was finally classified using cluster analysis.
The polygenetic Yedoma origin is proved.
Michael O'Connell, Karen Molloy, and Eneda Jennings
E&G Quaternary Sci. J., 69, 1–32, https://doi.org/10.5194/egqsj-69-1-2020, https://doi.org/10.5194/egqsj-69-1-2020, 2020
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Long-term environmental change in Co. Mayo, on the mid-Atlantic seaboard of Ireland, is discussed. Pollen diagrams and bog pine, dated by 14C and dendrochronology, provide evidence for woodlands, farming and climate change. Intensive farming is dated to the early Neolithic (3800–3400 BC) prior to wide-scale spread of blanket bog. Construction of the peat-covered, stone-wall field system at Céide Fields occurred at this time which is unexpectedly early. Bronze and Iron Age activity is detailed.
Betelhem Mekonnen, Wolfgang Zech, Bruno Glaser, Bruk Lemma, Tobias Bromm, Sileshi Nemomissa, Tamrat Bekele, and Michael Zech
E&G Quaternary Sci. J., 68, 177–188, https://doi.org/10.5194/egqsj-68-177-2019, https://doi.org/10.5194/egqsj-68-177-2019, 2019
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The study evaluates the ability of stable isotopes (δ13C and δ15N) and sugar biomarkers to distinguish Erica from the dominant vegetation of the Bale Mountains in order to reconstruct the past extent of Erica on the Sanetti Plateau. No significant differences in stable isotopes are found between the dominant plant species. Although Erica is characterized by quite high (G+M)/(A+X) ratios, it cannot be unambiguously distinguished from other plants due to degradation and soil microbial effects.
Bruk Lemma, Betelhem Mekonnen, Bruno Glaser, Wolfgang Zech, Sileshi Nemomissa, Tamrat Bekele, Lucas Bittner, and Michael Zech
E&G Quaternary Sci. J., 68, 189–200, https://doi.org/10.5194/egqsj-68-189-2019, https://doi.org/10.5194/egqsj-68-189-2019, 2019
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Chemotaxonomic identification of keystone plant species in the Bale Mountains are possible using lignin phenols. However, Erica could not be differentiated chemotaxonomically from all other investigated plants using n-alkanes. Unambiguous characteristic patterns of lignin phenols reflected in the plant samples were not sustained in the organic layers and mineral topsoils. This is due to degradation and organic matter inputs by roots. Therefore, the past extent of Erica is still speculative.
Hannes Laermanns, Simon Matthias May, Daniel Kelterbaum, Giorgi Kirkitadze, Stephan Opitz, Levan Navrozashvili, Mikheil Elashvili, and Helmut Brückner
E&G Quaternary Sci. J., 68, 119–139, https://doi.org/10.5194/egqsj-68-119-2019, https://doi.org/10.5194/egqsj-68-119-2019, 2019
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The landscape on the Black Sea coast of Georgia has changed significantly during the last few millennia. By using granulometric and geochemical analyses, we reconstructed significant sea level, coastline and palaeoenvironmental changes that have taken place in the surroundings of the Supsa fan since at least 4000 BCE.
Elisabeth Dietze and Michael Dietze
E&G Quaternary Sci. J., 68, 29–46, https://doi.org/10.5194/egqsj-68-29-2019, https://doi.org/10.5194/egqsj-68-29-2019, 2019
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Sedimentary deposits provide insights into past Earth surface dynamics via the size distribution of mineral grains documenting the erosion, transport and deposition history. This study introduces structured procedures to decipher the distinct grain-size distributions of sediment samples that were mixed during/after deposition, using the free statistical tool EMMAgeo. Compared with other algorithms, EMMAgeo is unique as it provides uncertainty estimates and allows expert knowledge to be included.
Clemens von Scheffer, Annika Lange, François De Vleeschouwer, Joachim Schrautzer, and Ingmar Unkel
E&G Quaternary Sci. J., 68, 13–28, https://doi.org/10.5194/egqsj-68-13-2019, https://doi.org/10.5194/egqsj-68-13-2019, 2019
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By using geochemical and pollen data, this study wanted to close knowledge gaps on the interconnection of climate, environment and human impact in the Kleinwalser Valley (Kleinwalsertal, northern central Alps) over the past 6200 years. For a long time, the Walser people were believed to be the first settlers, who cultivated the valley. However, humans have recurrently used and modified the landscape for at least 5500 years by burning or cutting down forests and practicing pasture management.
Cited articles
Academy of Sciences of Mongolia and Academy of Sciences of USSR: National Atlas of the Peoples Republic of Mongolia, Ulan Baatar, Moscow, 144 pp., 1990.
Bittner, L., Bliedtner, M., Grady, D., Gil-Romera, G., Martin-Jones, C.,
Lemma, B., Mekonnen, B., Lamb, H. F., Yang, H., Glaser, B., Szidat, S.,
Salazar, G., Rose, N. L., Opgenoorth, L., Miehe, G., Zech, W., and Zech, M.:
Revisiting afro-alpine Lake Garba Guracha in the Bale Mountains of Ethiopia:
rationale, chronology, geochemistry, and paleoenvironmental implications, J.
Paleolimnol., 64, 293–314, https://doi.org/10.1007/s10933-020-00138-w, 2020.
Bliedtner, M., Schäfer, I. K., Zech, R., and von Suchodoletz, H.: Leaf wax n-alkanes in modern plants and topsoils from eastern Georgia (Caucasus) – implications for reconstructing regional paleovegetation, Biogeosciences, 15, 3927–3936, https://doi.org/10.5194/bg-15-3927-2018, 2018.
Bliedtner, M., von Suchodoletz, H., Schäfer, I., Welte, C., Salazar, G., Szidat, S., Haas, M., Dubois, N., and Zech, R.: Age and origin of leaf wax n-alkanes in fluvial sediment–paleosol sequences and implications for paleoenvironmental reconstructions, Hydrol. Earth Syst. Sci., 24, 2105–2120, https://doi.org/10.5194/hess-24-2105-2020, 2020.
Breckle, S.-W., Lawlor, G., Lawlor, D. W., and Walter, H. (Eds.): Walter's
vegetation of the earth: The ecological systems of the geo-biosphere, 4th edn., Springer, Berlin, 527 pp., ISBN 9783540433156, 2002.
Brugger, S. O., Gobet, E., Sigl, M., Osmont, D., Papina, T., Rudaya, N.,
Schwikowski, M., and Tinner, W.: Ice records provide new insights into
climatic vulnerability of Central Asian forest and steppe communities,
Global Planet. Change, 169, 188–201, https://doi.org/10.1016/j.gloplacha.2018.07.010, 2018.
Buggle, B., Wiesenberg, G. L., and Glaser, B.: Is there a possibility to
correct fossil n-alkane data for postsedimentary alteration effects?, Appl. Geochem., 25, 947–957, https://doi.org/10.1016/j.apgeochem.2010.04.003, 2010.
Bush, R. T. and McInerney, F. A.: Leaf wax n-alkane distributions in and
across modern plants: Implications for paleoecology and chemotaxonomy,
Geochim. Cosmochim. Ac., 117, 161–179, https://doi.org/10.1016/j.gca.2013.04.016, 2013.
Diefendorf, A. F., Freeman, K. H., Wing, S. L., and Graham, H. V.:
Production of n-alkyl lipids in living plants and implications for the
geologic past, Geochim. Cosmochim. Ac., 75, 7472–7485, https://doi.org/10.1016/j.gca.2011.09.028, 2011.
Dulamsuren, C. and Hauck, M.: Spatial and seasonal variation of climate on
steppe slopes of the northern Mongolian mountain taiga, Grassl. Sci., 54,
217–230, https://doi.org/10.1111/j.1744-697X.2008.00128.x, 2008.
Eglinton, G. and Hamilton, R. J.: Leaf epicuticular waxes, Science,
1322–1325, 1967.
Eichler, A., Tinner, W., Brütsch, S., Olivier, S., Papina, T., and
Schwikowski, M.: An ice-core based history of Siberian forest fires since AD
1250, Quaternary Sci. Rev., 30, 1027–1034, https://doi.org/10.1016/j.quascirev.2011.02.007, 2011.
Erdős, L., Ambarlı, D., Anenkhonov, O. A., Bátori, Z., Cserhalmi,
D., Kiss, M., Kröel-Dulay, G., Liu, H., Magnes, M., Molnár, Z.,
Naqinezhad, A., Semenishchenkov, Y. A., Tölgyesi, C., and Török,
P.: The edge of two worlds: A new review and synthesis on Eurasian
forest-steppes, Appl. Veg. Sci., 21, 345–362, https://doi.org/10.1111/avsc.12382, 2018.
Fernández-Giménez, M. E., Venable, N. H., Angerer, J., Fassnacht, S.
R., Reid, R. S., and Khishigbayar, J.: Exploring linked ecological and
cultural tipping points in Mongolia, Anthropocene, 17, 46–69, https://doi.org/10.1016/j.ancene.2017.01.003, 2017.
Fowell, S. J., Hansen, B. C., Peck, J. A., Khosbayar, P., and Ganbold, E.:
Mid to late Holocene climate evolution of the Lake Telmen Basin, North
Central Mongolia, based on palynological data, Quat. Res., 59, 353–363,
https://doi.org/10.1016/S0033-5894(02)00020-0, 2003.
Gunin, P. D., Vastokova, E. A., Dorofeyuj, N. I., Tarasov, P. E., and Black,
C. C. (Eds.): Vegetation dynamics of Mongolia, Geobotany, 26, Kluwer
Academic Publishers, Dordrecht, Boston, London, 238 pp., https://doi.org/10.1007/978-94-015-9143-0_2, 1999.
Haas, M., Bliedtner, M., Borodynkin, I., Salazar, G., Szidat, S., Eglinton,
T. I., and Zech, R.: Radiocarbon Dating of Leaf Waxes in the Loess-Paleosol
Sequence Kurtak, Central Siberia, Radiocarbon, 59, 165–176, https://doi.org/10.1017/RDC.2017.1, 2017.
Hais, M., Chytrý, M., and Horsák, M.: Exposure-related
forest-steppe: A diverse landscape type determined by topography and
climate, J. Arid Environ., 135, 75–84, https://doi.org/10.1016/j.jaridenv.2016.08.011, 2016.
Hepp, J., Zech, R., Rozanski, K., Tuthorn, M., Glaser, B., Greule, M.,
Keppler, F., Huang, Y., Zech, W., and Zech, M.: Late Quaternary relative
humidity changes from Mt. Kilimanjaro, based on a coupled 2H-18O
biomarker paleohygrometer approach, Quatern. Int., 438, 116–130, https://doi.org/10.1016/j.quaint.2017.03.059, 2017.
Hessl, A. E., Brown, P., Byambasuren, O., Cockrell, S., Leland, C., Cook,
E., Nachin, B., Pederson, N., Saladyga, T., and Suran, B.: Fire and climate
in Mongolia (1532–2010 Common Era), Geophys. Res. Lett., 43, 6519–6527,
https://doi.org/10.1002/2016GL069059, 2016.
Hoefs, M. J., Rijpstra, W. C., and Sinninghe Damsté, J. S.: The
influence of oxic degradation on the sedimentary biomarker record I:
evidence from Madeira Abyssal Plain turbidites, Geochim. Cosmochim. Ac., 66, 2719–2735, https://doi.org/10.1016/S0016-7037(02)00864-5, 2002.
Iijima, Y., Ishikawa, M., and Jambaljav, Y.: Hydrological cycle in relation
to permafrost environment in forest-grassland ecotone in Mongolia, Journal
of Japanese Association of Hydrological Sciences, 42, 119–130, 2012.
Khansaritoreh, E., Dulamsuren, C., Klinge, M., Ariunbaatar, T., Bat-Enerel,
B., Batsaikhan, G., Ganbaatar, K., Saindovdon, D., Yeruult, Y., Tsogtbaatar,
J., Tuya, D., Leuschner, C., and Hauck, M.: Higher climate warming
sensitivity of Siberian larch in small than large forest islands in the
fragmented Mongolian forest steppe, Glob. Change Biol., 23, 3675–3689, https://doi.org/10.1111/gcb.13750, 2017.
Khapugin, A. A., Vargot, E. V., and Chugunov, G. G.: Vegetation recovery in
fire-damaged forests: a case study at the southern boundary of the taiga
zone, Forestry Studies, 64, 39–50, https://doi.org/10.1515/fsmu-2016-0003, 2016.
Klinge, M. and Sauer, D.: Spatial pattern of Late Glacial and Holocene
climatic and environmental development in Western Mongolia – A critical
review and synthesis, Quaternary Sci. Rev., 210, 26–50, https://doi.org/10.1016/j.quascirev.2019.02.020, 2019.
Klinge, M., Dulamsuren, C., Erasmi, S., Karger, D. N., and Hauck, M.: Climate effects on vegetation vitality at the treeline of boreal forests of Mongolia, Biogeosciences, 15, 1319–1333, https://doi.org/10.5194/bg-15-1319-2018, 2018.
Klinge, M., Schneider, F., Dulamsuren, C., Arndt, K., Bayarsaikhan, U., and
Sauer, D.: Interrelations between vegetation, natural and anthropogenic
disturbances, and discontinuous permafrost in the forest-steppe of central
Mongolia, Earth Surf. Proc. Land., 46, 1766–1782, https://doi.org/10.1002/esp.5116, 2021.
Klinge, M., Schneider, F., Yan, L., Frechen, M., and Sauer, D.: Alternating
geomorphological processes in the northern Khangai Mountains, Mongolia since
the Late Glacial period, Geomorphology, 401, 108113, https://doi.org/10.1016/j.geomorph.2022.108113, 2022.
Kolattukudy, P. E.: Biochemistry of plant waxes, in: Chemistry and
biochemistry of natural waxes, edited by: Kolattukudy, P. E. and
Kolattukudy, P. E., Elsevier, Amsterdam, 290–349, ISBN 0444414703, 1976.
Kopp, B. J., Minderlein, S., and Menzel, L.: Soil Moisture Dynamics in a
Mountainous Headwater Area in the Discontinuous Permafrost Zone of northern
Mongolia, Arct. Antarct. Alp. Res., 46, 459–470, https://doi.org/10.1657/1938-4246-46.2.459, 2014.
Lerch, M., Bliedtner, M., Roettig, C.-B., Schmidt, J.-U., Szidat, S., Salazar, G., Zech, R., Glaser, B., Kleber, A., and Zech, M.: Lipid biomarkers in aeolian sediments under desert pavements – potential and first results from the Black Rock Desert, Utah, USA, and Fuerteventura, Canary Islands, Spain, E&G Quaternary Sci. J., 66, 103–108, https://doi.org/10.5194/egqsj-66-103-2018, 2018.
Miehe, G., Schlütz, F., Miehe, S., Opgenoorth, L., Cermak, J., Samiya,
R., Jäger, E. J., and Wesche, K.: Mountain forest islands and Holocene
environmental changes in Central Asia: A case study from the southern Gobi
Altay, Mongolia, Palaeogeogr. Palaeoclimatol. Palaeoecol., 250, 150–166,
https://doi.org/10.1016/j.palaeo.2007.03.022, 2007.
Mustaphi, C. J. C. and Pisaric, M. F.: A classification for macroscopic
charcoal morphologies found in Holocene lacustrine sediments, Prog.
Phys. Geog., 38, 734–754, https://doi.org/10.1177/0309133314548886, 2014.
Nyamjav, B., Goldammer, G., and Uibrig, H.: Fire situation in Mongolia, in:
International Forest Fire News, 46–66, 2007.
Odgaard, B. V.: Fossil pollen as a record of past biodiversity, J.
Biogeogr., 26, 7–17, https://doi.org/10.1046/j.1365-2699.1999.00280.x, 1999.
Patterson, W. A., Edwards, K. J., and Maguire, D. J.: Microscopic charcoal
as a fossil indicator of fire, Quaternary Sci. Rev., 6, 3–23, https://doi.org/10.1016/0277-3791(87)90012-6, 1987.
Pelletier, J. D., Barron-Gafford, G. A., Gutiérrez-Jurado, H., Hinckley,
E.-L. S., Istanbulluoglu, E., McGuire, L. A., Niu, G.-Y., Poulos, M. J.,
Rasmussen, C., Richardson, P., Swetnam, T. L., and Tucker, G. E.: Which way
do you lean? Using slope aspect variations to understand Critical Zone
processes and feedbacks, Earth Surf. Proc. Land., 43, 1133–1154, https://doi.org/10.1002/esp.4306, 2018.
Pessenda, L. C. R., Gouveia, S. E. M., and Aravena, R.: Radiocarbon Dating
of Total Soil Organic Matter and Humin Fraction and Its Comparison with
14C Ages of Fossil Charcoal, Radiocarbon, 43, 595–601, https://doi.org/10.1017/S0033822200041242, 2001.
Poynter, J. G., Farrimond, P., Robinson, N., and Eglinton, G.:
Aeolian-Derived Higher Plant Lipids in the Marine Sedimentary Record: Links
with Palaeoclimate, in: Paleoclimatology and Paleometeorology: Modern and
Past Patterns of Global Atmospheric Transport, edited by: Leinen, M. and
Sarnthein, M., Springer, Dordrecht, 435–462, https://doi.org/10.1007/978-94-009-0995-3_18, 1989.
Rudaya, N., Tarasov, P. E., Dorofeyuk, N., Solovieva, N., Kalugin, I.,
Andreev, A., Daryin, A., Diekmann, B., Riedel, F., and Tserendash, N.:
Holocene environments and climate in the Mongolian Altai reconstructed from
the Hoton-Nur pollen and diatom records: A step towards better understanding
climate dynamics in Central Asia, Quaternary Sci. Rev., 28, 540–554,
https://doi.org/10.1016/j.quascirev.2008.10.013, 2009.
Schäfer, I. K., Lanny, V., Franke, J., Eglinton, T. I., Zech, M., Vysloužilová, B., and Zech, R.: Leaf waxes in litter and topsoils along a European transect, SOIL, 2, 551–564, https://doi.org/10.5194/soil-2-551-2016, 2016.
Schneider, F., Klinge, M., Brodthuhn, J., Peplau, T., and Sauer, D.: Hydrological soil properties control tree regrowth after forest disturbance in the forest steppe of central Mongolia, SOIL, 7, 563–584, https://doi.org/10.5194/soil-7-563-2021, 2021.
Stevenson, J. and Haberle, S.: Macro Charcoal Analysis: A modified technique
used by the Department of Archaeology and Natural History, Palaeoworks
Technical Papers, 5, http://hdl.handle.net/1885/144170 (last access: 20 May 2022), 2005.
Strobel, P., Struck, J., Zech, R., and Bliedtner, M.: The spatial
distribution of sedimentary compounds and their environmental implications
in surface sediments of Lake Khar Nuur (Mongolian Altai), Earth Surf. Proc.
Land., 46, 611–625, https://doi.org/10.1002/esp.5049, 2021.
Struck, J., Roettig, C. B., Faust, D., and Zech, R.: Leaf waxes from aeolianite–paleosol sequences on Fuerteventura and their potential for paleoenvironmental and climate reconstructions in the arid subtropics, E&G Quaternary Sci. J., 66, 109–114, https://doi.org/10.5194/egqsj-66-109-2018, 2018.
Struck, J., Bliedtner, M., Strobel, P., Schumacher, J., Bazarradnaa, E., and Zech, R.: Leaf wax n-alkane patterns and compound-specific δ13C of plants and topsoils from semi-arid and arid Mongolia, Biogeosciences, 17, 567–580, https://doi.org/10.5194/bg-17-567-2020, 2020.
Tarasov, P. E., Müller, S., Zech, M., Andreeva, D., Diekmann, B., and
Leipe, C.: Last glacial vegetation reconstructions in the
extreme-continental eastern Asia: Potentials of pollen and n-alkane biomarker analyses, Quatern. Int., 290–291, 253–263, https://doi.org/10.1016/j.quaint.2012.04.007, 2013.
Thomas, C. L., Jansen, B., van Loon, E. E., and Wiesenberg, G. L. B.: Transformation of n-alkanes from plant to soil: a review, SOIL, 7, 785–809, https://doi.org/10.5194/soil-7-785-2021, 2021.
Umbanhowar, C. E. and Mcgrath, M. J.: Experimental production and analysis
of microscopic charcoal from wood, leaves and grasses, Holocene, 8,
341–346, https://doi.org/10.1191/095968398666496051, 1998.
Umbanhowar, C. E., Shinneman, A. L., Tserenkhand, G., Hammon, E. R., Lor,
P., and Nail, K.: Regional fire history based on charcoal analysis of
sediments from nine lakes in western Mongolia, Holocene, 19, 611–624,
https://doi.org/10.1177/0959683609104039, 2009.
Unkelbach, J., Kashima, K., Enters, D., Dulamsuren, C., Punsalpaamuu, G.,
and Behling, H.: Late Holocene (Meghalayan) palaeoenvironmental evolution
inferred from multi-proxy-studies of lacustrine sediments from the Dayan
Nuur region of Mongolia, Palaeogeogr. Palaeoclimatol. Palaeoecol., 530,
1–14, https://doi.org/10.1016/j.palaeo.2019.05.021, 2019.
Unkelbach, J., Dulamsuren, C., Klinge, M., and Behling, H.: Holocene
high-resolution forest-steppe and environmental dynamics in the Tarvagatai
Mountains, north-central Mongolia, over the last 9570 cal yr BP, Quaternary Sci. Rev., 266, 107076, https://doi.org/10.1016/j.quascirev.2021.107076, 2021.
Wang, W., Ma, Y., Feng, Z.-D., Meng, H., Sang, Y., and Zhai, X.: Vegetation
and climate changes during the last 8660 cal. a BP in central Mongolia,
based on a high resolution pollen record from Lake Ugii Nuur, Chinese Sci.
Bull., 54, 1579–1589, https://doi.org/10.1007/s11434-009-0023-8, 2009.
Wiesenberg, G., Lehndorff, E., and Schwark, L.: Thermal degradation of rye
and maize straw: Lipid pattern changes as a function of temperature, Org.
Geochem., 40, 167–174, https://doi.org/10.1016/j.orggeochem.2008.11.004, 2009.
Zech, M., Buggle, B., Leiber, K., Marković, S., Glaser, B., Hambach, U., Huwe, B., Stevens, T., Sümegi, P., Wiesenberg, G., and Zöller, L.: Reconstructing Quaternary vegetation history in the Carpathian Basin, SE-Europe, using n-alkane biomarkers as molecular fossils: Problems and possible solutions, potential and limitations, E&G Quaternary Sci. J., 58, 148–155, https://doi.org/10.3285/eg.58.2.03, 2010a.
Zech, M., Andreev, A., Zech, R., Müller, S., Hambach, U., Frechen, M.,
and Zech, W.: Quaternary vegetation changes derived from a loess-like
permafrost palaeosol sequence in northeast Siberia using alkane biomarker
and pollen analyses, Boreas, 4142, 540–550, https://doi.org/10.1111/j.1502-3885.2009.00132.x, 2010b.
Zech, M., Rass, S., Buggle, B., Löscher, M., and Zöller, L.:
Reconstruction of the late Quaternary paleoenvironments of the Nussloch
loess paleosol sequence, Germany, using n-alkane biomarkers, Quat. Res., 78, 226–235, https://doi.org/10.1016/j.yqres.2012.05.006, 2012.
Zech, M., Krause, T., Meszner, S., and Faust, D.: Incorrect when
uncorrected: Reconstructing vegetation history using n-alkane biomarkers in
loess-paleosol sequences – A case study from the Saxonian loess region,
Germany, Quatern. Int., 296, 108–116, https://doi.org/10.1016/j.quaint.2012.01.023, 2013.
Zech, M., Kreutzer, S., Zech, R., Goslar, T., Meszner, S., McIntyre, C.,
Häggi, C., Eglinton, T., Faust, D., and Fuchs, M.: Comparative 14C
and OSL dating of loess-paleosol sequences to evaluate post-depositional
contamination of n-alkane biomarkers, Quat. Res., 87, 180–189, https://doi.org/10.1017/qua.2016.7, 2017.
Short summary
Charcoals and leaf waxes from vegetation accumulate in the soil and provide information about past vegetation because they are mostly resistant against physical and biological degradation. Analyzing and comparing ratios of both element types helped us to improve the evidence for vegetation reconstruction. We found that the accumulation processes and preservation of these elements depend on different environmental conditions at forest- and steppe-dominated sites in the Mongolian forest–steppe.
Charcoals and leaf waxes from vegetation accumulate in the soil and provide information about...
