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Maria Fajer Jan Maciej Waga Mariusz Rzetala Artur Szymczyk Ma?gorzata Nita Robert Machowski Martyna A. Rzetala Marek Ruman 《Journal of Paleolimnology》2012,48(4):651-667
Jezioro Lake is the only natural lake in southern Poland outside mountainous areas to have existed continuously since the Pleistocene. The record of environmental change in the Late Vistulian (Weichselian) and Holocene is preserved in the deposits and landforms around the lake. This paper presents the results of paleogeographical and paleoecological research that emabled us to reconstruct the history of the Jezioro Lake. At the end of the Vistulian period, the outlet of the lake was blocked by a parabolic dune moving in from the west. Limnic sedimentation was evident in the sediment core at all levels from the Holocene, with remains of Cladocera, Chironomidae larvae, and aquatic plants. The lake did not disappear at that time, although its area decreased by a factor of 12 by the end of the period. Paleobotanical research permitted the reconstruction of sequences of plant communities and changes in nutrient status and water level. An initial oligotrophic lake, as indicated by the presence of Iso?tes lacustris L., changed to a eutrophic lake, as indicated by the presence of Potamogeton natans L. and Nuphar sp., then the lake progressed to the present-day dystrophic lake that is surrounded by a swamp. The profile of organic deposits contains a record of environmental change at least since the Younger Dryas in southern Poland. 相似文献
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Theoretical and Applied Climatology - The aim of this study is to examine the impact of the regional vegetation change on the seasonal surface air temperature and is performed using the... 相似文献
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Ruman Stanislav Tichavský Radek Šilhán Karel Grillakis Manolis G. 《Natural Hazards》2021,105(2):1721-1742
Natural Hazards - This study represents the first palaeoflood discharge estimation using dendrogeomorphic evidence from two ungauged catchments in southern Crete. Dendrogeomorphological methods,... 相似文献
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Tošić Ivana Gavrilov Milivoj B. Marković Slobodan B. Ruman Albert Putniković Suzana 《Theoretical and Applied Climatology》2018,131(3-4):1273-1284
Theoretical and Applied Climatology - Seasonal prevailing surface winds are analyzed in the territory of Northern Serbia, using observational data from 12 meteorological stations over several... 相似文献
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K.?Kozak ?.?PolkowskaEmail author ?.?Stachnik B.?Luks S.?Chmiel M.?Ruman D.?Lech K.?Kozio? S.?Tsakovski V.?Simeonov 《International Journal of Environmental Science and Technology》2016,13(12):2779-2796
Arctic regions experience metal pollution, despite their remote location, and the distribution and migration of those metals determine their potential impact on the local environment. Here, a High-Arctic catchment (Revelva, Svalbard) located remotely from human-induced pollution sources is studied with respect to the distribution and migration of chosen trace elements (Ag, Al, As, B, Ba, Bi, Ca, Cd, Co, Cr, Cu, Cs, Mo, Ni, Pb, Sb, Se, Sr, Tl, U, V and Zn) in surface waters. The metal concentrations fluctuated in 2010–2012 between 0.01 and 354 μg L?1, the highest mean-weighted concentration noted for Sr (42.5 μg L?1). The concentrations in the river water were likely influenced by both natural and human-activity-related processes. These factors can produce substances of the same chemical composition (e.g. carbon dioxide, sulphur dioxide and metals may be emitted both by a volcanic eruption and by industrial sources). Therefore, chemometric techniques were used in the current paper to distinguish the multiple sources of pollution in the Revelva catchment. The authors were seeking to determine whether there is indeed evidence for contamination, sufficient to cause environmental damage in polar region. As a result, it was shown that the long-range transport could play an important role in shaping the metal concentration profile of this Arctic tundra environment, capturing both the influence of volcanic eruptions within the region and the human activity in a range of distances from the study site. 相似文献
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