Now showing 1 - 6 of 6
  • 2010Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","231"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","The Holocene"],["dc.bibliographiccitation.lastpage","244"],["dc.bibliographiccitation.volume","20"],["dc.contributor.author","Eckstein, Jan"],["dc.contributor.author","Leuschner, Hanns Hubert"],["dc.contributor.author","Giesecke, Thomas"],["dc.contributor.author","Shumilovskikh, Lyudmila S."],["dc.contributor.author","Bauerochse, Andreas"],["dc.date.accessioned","2018-11-07T08:45:27Z"],["dc.date.available","2018-11-07T08:45:27Z"],["dc.date.issued","2010"],["dc.description.abstract","Excellently preserved subfossil pine and oak tree remains from the bottom layer of raised bog peat were dendroecologically investigated at Venner Moor (northwest Germany). Tree-ring analyses were combined with observations of stem and root morphology, preservation state, mineral soil relief, peat stratigraphy and pollen analysis to reconstruct in great detail environmental changes leading to the start of the raised bog formation. Hydrology was identified as the main determinant influencing tree growth and population dynamics at Venner Moor, as documented by different growth patterns and dying-off dates in relation to the mineral soil elevation. The woodland phase has been dendrochronological dated to the period from 2421-2077 BC (4371-4027 cal BP). In this period, a general change from more or less open landscape with dominating heath to wet pine forest and eventually to open raised bog occurred at the site. Comparisons with pine population dynamics at the nearby Voerdener Moor and with the independent Lower Saxony log yak Chronology (LSBOC) indicate that the reconstructed ecological changes at Venner Moor are mainly triggered by climate variations, in particular wet shifts on the decadal timescale. This example shows the value of subfossil pine layers from northwest German bogs as a high resolution proxy archive of Holocene humidity fluctuations."],["dc.description.sponsorship","German Research Foundation [LE 1805/2-1]"],["dc.identifier.doi","10.1177/0959683609350397"],["dc.identifier.isi","000274900800008"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/13085"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/20445"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","0959-6836"],["dc.relation.orgunit","Abteilung Palynologie und Klimadynamik"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Dendroecological investigations at Venner Moor (northwest Germany) document climate-driven woodland dynamics and mire development in the period 2450-2050 BC"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
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  • 2014Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","939"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","CLIMATE OF THE PAST"],["dc.bibliographiccitation.lastpage","954"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Shumilovskikh, Lyudmila S."],["dc.contributor.author","Fleitmann, Dominik"],["dc.contributor.author","Nowaczyk, N. R."],["dc.contributor.author","Behling, Hermann"],["dc.contributor.author","Marret, Fabienne"],["dc.contributor.author","Wegwerth, Antje"],["dc.contributor.author","Arz, Helge W."],["dc.date.accessioned","2018-11-07T09:46:01Z"],["dc.date.available","2018-11-07T09:46:01Z"],["dc.date.issued","2014"],["dc.description.abstract","High-resolution pollen and dinoflagellate cyst records from sediment core M72/5-25-GC1 were used to reconstruct vegetation dynamics in northern Anatolia and surface conditions of the Black Sea between 64 and 20 ka BP. During this period, the dominance of Artemisia in the pollen record indicates a steppe landscape and arid climate conditions. However, the concomitant presence of temperate arboreal pollen suggests the existence of glacial refugia in northern Anatolia. Long-term glacial vegetation dynamics reveal two major arid phases similar to 64-55 and 40-32 ka BP, and two major humid phases similar to 54-45 and 28-20 ka BP, correlating with higher and lower summer insolation, respectively. Dansgaard-Oeschger (D-O) cycles are clearly indicated by the 25-GC1 pollen record. Greenland interstadials are characterized by a marked increase in temperate tree pollen, indicating a spread of forests due to warm/wet conditions in northern Anatolia, whereas Greenland stadials reveal cold and arid conditions as indicated by spread of xerophytic biomes. There is evidence for a phase lag of similar to 500 to 1500 yr between initial warming and forest expansion, possibly due to successive changes in atmospheric circulation in the North Atlantic sector. The dominance of Pyxidinopsis psilata and Spiniferites cruciformis in the dinocyst record indicates brackish Black Sea conditions during the entire glacial period. The decrease of marine indicators (marine dinocysts, acritarchs) at similar to 54 ka BP and increase of freshwater algae (Pediastrum, Botryococcus) from 32 to 25 ka BP reveals freshening of the Black Sea surface water. This freshening is possibly related to humid phases in the region, to connection between Caspian Sea and Black Sea, to seasonal freshening by floating ice, and/or to closer position of river mouths due to low sea level. In the southern Black Sea, Greenland interstadials are clearly indicated by high dinocyst concentrations and calcium carbonate content, as a result of an increase in primary productivity. Heinrich events show a similar impact on the environment in the northern Anatolia/Black Sea region as Greenland stadials."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2013"],["dc.identifier.doi","10.5194/cp-10-939-2014"],["dc.identifier.isi","000338761600002"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/10124"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/34767"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1814-9332"],["dc.relation.issn","1814-9324"],["dc.rights","CC BY 3.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/3.0"],["dc.title","Orbital- and millennial-scale environmental changes between 64 and 20 ka BP recorded in Black Sea sediments"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2016Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","1676"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","The Holocene"],["dc.bibliographiccitation.lastpage","1691"],["dc.bibliographiccitation.volume","26"],["dc.contributor.author","Shumilovskikh, Lyudmila S."],["dc.contributor.author","Hopper, Kristen"],["dc.contributor.author","Djamali, Morteza"],["dc.contributor.author","Ponel, Philippe"],["dc.contributor.author","Demory, Francois"],["dc.contributor.author","Rostek, Frauke"],["dc.contributor.author","Tachikawa, Kazuyo"],["dc.contributor.author","Bittmann, Felix"],["dc.contributor.author","Golyeva, Alexandra"],["dc.contributor.author","Guibal, Frederic"],["dc.contributor.author","Talon, Brigitte"],["dc.contributor.author","Wang, L."],["dc.contributor.author","Nezamabadi, Masoud"],["dc.contributor.author","Bard, Edouard"],["dc.contributor.author","Lahijani, Hamid"],["dc.contributor.author","Nokandeh, Jebrael"],["dc.contributor.author","Rekavandi, Hamid Omrani"],["dc.contributor.author","de Beaulieu, Jacques-Louis"],["dc.contributor.author","Sauer, Eberhard"],["dc.contributor.author","Andrieu-Ponel, Valerie"],["dc.date.accessioned","2018-11-07T10:08:09Z"],["dc.date.available","2018-11-07T10:08:09Z"],["dc.date.issued","2016"],["dc.description.abstract","The Gorgan Plain (NE Iran) is characterized by fertile soils formed on a loess plateau and is at present primarily exploited for intensive agriculture. However, the timing and intensity of the human impact on the landscape in the past are still unclear. A sediment core, taken from the centre of the eastern Gorgan Plain in the Kongor Lake covering the major part of the Holocene from 6.1 to 0.8ka (all ages are calibrated before present), has been studied for pollen, non-pollen palynomorphs, botanical macroremains, insects, charcoal, geochemistry, biomarkers and magnetism in order to provide new insights into the evolution of the landscape and to estimate the intensity of human activities. The data obtained suggest a dry period between 5.9 and 3.9ka and an increase in regional humidity afterwards with a maximum between 2.7 and 0.7ka, during the period of the Persian empires (Achaemenid through Sasanian) and the Islamic era. The eastern part of the Gorgan Plain was characterized by open steppe landscapes during the last 6ka, which most likely were used for pasture and at least since 2.7ka for agriculture including arboriculture. The strongest anthropogenic impact on the environment around the Kongor site is documented during the Parthian and Sasanian Empires (200 BC-651 AD) and the Islamic era up to the eve of the Mongol invasion."],["dc.identifier.doi","10.1177/0959683616646841"],["dc.identifier.isi","000382971700013"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14332"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/39416"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1477-0911"],["dc.relation.issn","0959-6836"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Landscape evolution and agro-sylvo-pastoral activities on the Gorgan Plain (NE Iran) in the last 6000 years"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2020Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","1016"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","The Holocene"],["dc.bibliographiccitation.lastpage","1028"],["dc.bibliographiccitation.volume","30"],["dc.contributor.author","Unkelbach, Julia"],["dc.contributor.author","Kashima, Kaoru"],["dc.contributor.author","Punsalpaamuu, Gaadan"],["dc.contributor.author","Shumilovskikh, Lyudmila S."],["dc.contributor.author","Behling, Hermann"],["dc.date.accessioned","2020-12-10T18:38:28Z"],["dc.date.available","2020-12-10T18:38:28Z"],["dc.date.issued","2020"],["dc.description.abstract","The ‘Altai Tavan Bogd’ National Park in the north-western part of the Mongolian Altai, Central Asia, is located in a forest-steppe ecosystem. It occurs under the influence of extreme continental and montane climate and is sensitive to natural and anthropogenic impacts. High-resolution (\\u0026lt;20 years per sample) multi-proxy data of pollen, non-pollen palynomorphs (NPPs), macro-charcoal, diatoms, and XRF scanning from radiocarbon-dated lacustrine sediments reveal various environmental changes and the impact of different settlement periods for the late-Holocene. From 1350 to 820 cal. yr BP (AD 600–1130), the distribution of grass steppe indicates a climate similar to present-day conditions. Rapid improvements of climatic conditions (e.g. increased rainfall events) possibly favored a recovery of forest-steppe encouraging nomadic movements into alpine areas. In the period from 820 to 400 cal. yr BP (AD 1130–1550), the decline of forested areas suggests an increasingly drier and possibly colder climate. Some political shifts during the Mongol Empire (744–582 cal. yr BP; AD 1206–1368) favored variations in nomadic grazing habits. After 400 cal. yr BP (AD 1550), moisture and temperature increased slightly, and from ca. 40 cal. yr BP (AD 1910) to present, annual temperature continued to increase more markedly favoring an additional water availability due to permafrost degradation. Diatom data suggest several intervals of increased water availability in all periods which might have caused erosion due to heavier rainfall events or increased snow melt. Immediately after most of these high-water intervals, NPP data reveal periods of increased grazing activities in the area."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft \t https://doi.org/10.13039/501100001659"],["dc.identifier.doi","10.1177/0959683620908662"],["dc.identifier.eissn","1477-0911"],["dc.identifier.issn","0959-6836"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/77330"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.relation.eissn","1477-0911"],["dc.relation.issn","0959-6836"],["dc.relation.orgunit","Abteilung Palynologie und Klimadynamik"],["dc.title","Decadal high-resolution multi-proxy analysis to reconstruct natural and human-induced environmental changes over the last 1350 cal. yr BP in the Altai Tavan Bogd National Park, western Mongolia"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
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  • 2015Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","5"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Studia Quaternaria"],["dc.bibliographiccitation.lastpage","18"],["dc.bibliographiccitation.volume","32"],["dc.contributor.author","Shumilovskikh, Lyudmila S."],["dc.contributor.author","Schlütz, Frank"],["dc.contributor.author","Achterberg, Inke"],["dc.contributor.author","Bauerochse, Andreas"],["dc.contributor.author","Leuschner, Hanns Hubert"],["dc.date.accessioned","2019-07-09T11:43:25Z"],["dc.date.available","2019-07-09T11:43:25Z"],["dc.date.issued","2015"],["dc.description.abstract","In order to reconstruct regional vegetation changes and local conditions during the fen-bog transition in the Borsteler Moor (north western Germany), a sediment core covering the period between 7.1 and 4.5 cal kyrs BP was palynologically investigated. The pollen diagram demonstrates the dominance of oak forests and a gradual replacement of trees by raised bog vegetation with the wetter conditions in the Late Atlantic. At ~ 6 cal kyrs BP, the non-pollen palynomorphs (NPP) demonstrate the succession from mesotrophic conditions, clearly indicated by a number of fungal spore types, to oligotrophic conditions, indicated by Sphagnum spores, Bryophytomyces sphagni, and testate amoebae Amphitrema, Assulina and Arcella, etc. Four relatively dry phases during the transition from fen to bog are clearly indicated by the dominance of Calluna and associated fungi as well as by the in crease of microcharcoal. Several new NPP types are described and known NPP types are identified. All NPP are dis cussed in the context of their palaeoecological indicator values."],["dc.identifier.doi","10.1515/squa-2015-0001"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14523"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/58884"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","2300-0384"],["dc.relation.orgunit","Abteilung Palynologie und Klimadynamik"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.ddc","570"],["dc.title","Non-Pollen Palynomorphs from Mid-Holocene Peat of the Raised Bog Borsteler Moor (Lower Saxony, Germany)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2014Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","21"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","CLIMATE OF THE PAST"],["dc.bibliographiccitation.lastpage","39"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Wang, Y."],["dc.contributor.author","Herzschuh, Ulrike"],["dc.contributor.author","Shumilovskikh, Lyudmila S."],["dc.contributor.author","Mischke, Steffen"],["dc.contributor.author","Birks, H. John B."],["dc.contributor.author","Wischnewski, J."],["dc.contributor.author","Bohner, J."],["dc.contributor.author","Schluetz, Frank"],["dc.contributor.author","Lehmkuhl, Frank"],["dc.contributor.author","Diekmann, B."],["dc.contributor.author","Wuennemann, B."],["dc.contributor.author","Zhang, C."],["dc.date.accessioned","2018-11-07T09:46:18Z"],["dc.date.available","2018-11-07T09:46:18Z"],["dc.date.issued","2014"],["dc.description.abstract","Pollen records from large lakes have been used for quantitative palaeoclimate reconstruction, but the influences that lake size (as a result of species-specific variations in pollen dispersal patterns that smaller pollen grains are more easily transported to lake centre) and taphonomy have on these climatic signals have not previously been systematically investigated. We introduce the concept of pollen source area to pollen-based climate calibration using the north-eastern Tibetan Plateau as our study area. We present a pollen data set collected from large lakes in the arid to semi-arid region of central Asia. The influences that lake size and the inferred pollen source areas have on pollen compositions have been investigated through comparisons with pollen assemblages in neighbouring lakes of various sizes. Modern pollen samples collected from different parts of Lake Donggi Cona (in the north-eastern part of the Tibetan Plateau) reveal variations in pollen assemblages within this large lake, which are interpreted in terms of the species-specific dispersal and depositional patterns for different types of pollen, and in terms of fluvial input components. We have estimated the pollen source area for each lake individually and used this information to infer modern climate data with which to then develop a modern calibration data set, using both the multivariate regression tree (MRT) and weighted-averaging partial least squares (WA-PLS) approaches. Fossil pollen data from Lake Donggi Cona have been used to reconstruct the climate history of the north-eastern part of the Tibetan Plateau since the Last Glacial Maximum (LGM). The meanannual precipitation was quantitatively reconstructed using WA-PLS: extremely dry conditions are found to have dominated the LGM, with annual precipitation of around 100 mm, which is only 32% of present-day precipitation. A gradually increasing trend in moisture conditions during the Late Glacial is terminated by an abrupt reversion to a dry phase that lasts for about 1000 yr and coincides with \"Heinrich event 1\" in the North Atlantic region. Subsequent periods corresponding to the Bolling/Allerod interstadial, with annual precipitation (P-ann) of about 350 mm, and the Younger Dryas event (about 270 mm P-ann) are followed by moist conditions in the early Holocene, with annual precipitation of up to 400 mm. A drier trend after 9 cal. ka BP is followed by a second wet phase in the middle Holocene, lasting until 4.5 cal. ka BP. Relatively steady conditions with only slight fluctuations then dominate the late Holocene, resulting in the present climatic conditions. The climate changes since the LGM have been primarily driven by deglaciation and fluctuations in the intensity of the Asian summer monsoon that resulted from changes in the Northern Hemisphere summer solar insolation, as well as from changes in the North Atlantic climate through variations in the circulation patterns and intensity of the westerlies."],["dc.identifier.doi","10.5194/cp-10-21-2014"],["dc.identifier.isi","000333837600002"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/11680"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/34842"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1814-9332"],["dc.relation.issn","1814-9324"],["dc.rights","CC BY 3.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/3.0"],["dc.title","Open Access Quantitative reconstruction of precipitation changes on the NE Tibetan Plateau since the Last Glacial Maximum - extending the concept of pollen source area to pollen-based climate reconstructions from large lakes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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