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Późnoglacjalne i holoceńskie osady wybranych torfowisk dolinnych regionu łódzkiego w nawiązaniu do zmian paleośrodowiskowych

Forysiak J., Kloss M., Obremska M., Żurek S.

Folia Quaternaria

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2014

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nr 82

5--30

PL

Artykuł przedstawia wyniki badań geomorfologicznych, geologicznych oraz paleobotanicznych, przeprowadzonych na czterech torfowiskach dolinnych regionu łódzkiego (Bęczkowice, Kopanicha, Mianów i Wilczków). Są to obiekty funkcjonujące w warunkach niewielkiego wpływu rzek na przebieg procesów torfotwórczych. Misy opisywanych torfowisk powstały w różnym czasie, od przełomu plenivistulianu i późnego vistulianu po początek holocenu. Trwałe zatorfienie również następowało w różnym czasie. Wszystkie z analizowanych torfowisk można określić jako torfowiska paludyfikacyjne. Udokumentowane osady biogeniczne pozwalają na rekonstrukcję zmian środowiska w wybranych torfowiskach w późnym vistulianie i holocenie.

EN

The article presents the results of geomorphological, geological and palaeobotanical studies conducted in four valley peatlands in the Łódź region. The study area is dominated by valley peatlands. The most numerous group are basins developed under condition of fluvial processes. The peatlands occur within active river valleys, as well as on terraces and in inactive river valleys. The Wilczków peatland is located in the inactive river valley. The peatland may be classified as a valley fen. It was mainly fed by soligenic waters. Formation of the peat horizon in the river valley occurred in the Younger Dryas. The sedge peatland functioned until the end of the Atlantic, when the process was interrupted. Peat-forming vegetation returned to the studied part of the peatland again in the Subatlantic Period. The Mianów peatland is located on the terrace of Ner river valley, and is classified as a valley fen. This wetland was fed by soligenic, and partially by fluviogenic waters. Peat development in the oxbow lake occurred at the end of the Late Weichselian. The fen functioned in the Preboreal. After a relatively long break, growth of peat mass occurred again in the Subboreal and Subatlantic. The Kopanicha peatland is located in Rawka river valley. The object can be classified as a valley fen. The peatland was fed by soligenic waters. Peat development in the oxbow lakes occurred at the beginning of the Atlantic period, and peat growth lasted until the modern times, but with interruptions in the Atlantic and Subatlantic. The Bęczkowice peatland is located in Luciąża river valley, is the biggest one. This peatland is defined as a valley fen, with patches of a transitional. The object was fed by soligenic, and partially by fluviogenic and precipitation waters. Overdeepenings within the valley bed became limnic accumulation reservoirs already at the beginning of the Late Weichselian. Then they were subjected to peat formation together with the entire area of the valley floor. Peat sedentation was interrupted at the beginning of the Atlantic. The peatland developed again in the Subatlantic. Biogenic accumulation in the studied basins, located in the river valleys, does not enable continuous sediment growth as they are dependent on changing dynamics of fluvial processes, which means that the registered growth of biogenic sediments is not synchronous in these valley peatlands. Objects which are fed by groundwater and located in inactive valleys, can also show changeable intensity of biogenic sediments growth.

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Evolution of small valley mire in central Poland as a result of hydroclimatic oscillations

Pawłowski D., Kloss M., Obremska M., Szymanowski M., Żurek S.

Geochronometria

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2012

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Vol. 39, no. 2

133-148

EN

This paper demonstrates the results of analyses of Cladocera, pollen, plant macrofossil, lithological and radiocarbon data recovered from a mire located in the Rawka River valley in central Poland. These studies permit to recognise the development of hydrology phases in Kopanicha mire and give insight into Holocene fluvial dynamics of the system; radiocarbon dating partly allowed da-ting of the patterns of Holocene valley floor development of the Rawka River. The Kopanicha mire was formed during the Atlantic period. At that time, an oxbow lake formed, becoming a mire during the Subboreal and possibly Subatlantic periods. The high sensitivity of the oxbow lakes, fens, fauna, and flora remains to climate variations – especially to changes in water level connected with the ag-gradation-erosion cycle of rivers – allows the reconstruction of the palaeoecological changes that oc-curred in the mire. The frequency and timing of hydroclimatic oscillations at Kopanicha show strong similarities to records from other sites in Poland. Changes in Cladocera frequency and plant assem-blages were mostly influenced by the Rawka River which controlled the hydrological regime of the mire. The main factors controlling the presence of Cladocera taxa were the water level and the pres-ence of favourable conditions in the mire (e.g. pH, vegetation). Most of the changes occurred in re-sponse to climate changes, but some of them were connected with local factors.

3

Wpływ późnośredniowiecznego osadnictwa na paleoekologiczne zmiany torfowiska Żabieniec (Wzniesienia Łódzkie)

Forysiak J., Balwierz Z., Borówka K. R., Kittel P., Kloss M., Lamentowicz M., Pawłowski D., Twardy J., Żurek S.

Landform Analysis

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2008

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Vol. 9

285--288

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Wetland patches (Potholes) in a mosaic landscape (Masurian Lakeland, Poland) : floristic diversity and disturbance

Wilpiszewska I., Kloss M.

Polish Journal of Ecology

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2002

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Vol. 50, nr 4

515-525

EN

In 1999 the vegetation of 145 small (1 ha) wetlands was analysed in the Inulec Lake catchment, which makes up a part of the Jorka River-Lake system (the Masurian Lakeland, north-eastern Poland). In total, 22 plant communities were identified at their distribution was described. Willow communities were the most frequent in the examined area. Changes occuring in phytocoenoses over the period of 20 years were assessed. Most of the plant communities have retained their natural character.

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Diversity, disturbance and spatial structure of wetland vegetation along a lake shore : Jorka river-lake system (Masurian Lakeland, Poland

Kloss M., Wilpiszewska I.

Polish Journal of Ecology

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2002

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Vol. 50, nr 4

489-513

EN

In 1997-1999, phytosociological studies of the riparian vegetation were conducted in the Jorka River-Lake system, Masurian Lakeland, Poland. This vegetation performs an important function as a barrier for various chemicals, counteracting lake eutrophication. In total, 26 plant communities were identified. The riparian vegetation was represented by phytocoenoses of the classes: Alnetea glutinosae, Salicetea purpureae, Querco-Fagetea, Artemisietea and Molinio-Arrhenatheretea. The littoral vegetation comprised phytocoenoses of the classes Phragmitetea and Potamogetonetea. Plant communities typically occur in the form of strips along rivers or lake shores, and on rare occasions in the form of mosaics of overlapping patches. The degree of the transformation of riparian vegetation relative to its natural state was estimated. The plant cover was disturbed by man along 80% of the shoreline length. Spatial distribution of phytocoenoses was analysed in details along 13 transects.