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Anthropogenic changes in the vegetative cover of the past five thousand years in light of pollen analysis of lake sediments in Wielkopolska

100%

Milecka K.

tom 10

Lobelia dortmanna L. seeds in lake sediments from the Tuchola Forest (Pomerania, northern Poland)

63%

Lamentowicz M. , Milecka K.

nr 2

Palaeoecology of basins of organic sediment accumulation in the Reserve Dury

63%

Kowalewski G. , Milecka K.

2003

tom Vol. 20

73-81

The Reserve Dury, Tuchola Pinewoods, Poland, includes five depressions with no outflow filled up with biogenic sediments. They undergo terrestrialization processes to a high degree. In four of the basins there are still some open water areas surrounded by floating mire with raised and transitional bog plants. For the needs of protection service officers some palynological and geological research were carried out. All the geological cores were described in detail following the Troels-Smith system. The deepest core Dury I was selected for pollen analysis. Ten Local Pollen Assemblage Zones (L PAZ) show the history of regional and local plant communities. On the basis of two air photographs, modern dynamics of floating mire in four basins were evaluated. The results allow us to correlate the geological layers, to describe the Late Glacial and Holocene succession of plant cover at Dury I site, and to show the stages of filling-in of basins with lacustrine sediments and peat.

Development of the Kletno peat-bog and postglacial and Holocene transformations of the Bialowieza Primeval Forest vegetation in the light of pollen analysis

63%

Noryskiewicz A. M. , Milecka K.

tom 67

History of the Białowieża Primeval Forest, NE Poland

51%

Milecka K. , Noryśkiewicz A. M. , Kowalewski G.

2009

tom Vol. 26

25-39

Białowieża in Poland is a very famous region in Europe (because of its primeval forest and bison population), but its environmental history is poorly known. This article shows the results of palynological analysis, macrofossil analysis and geological settings of two mires in the Białowieża Forest. The pollen diagrams show changes of the vegetation cover from the younger part of the Late Glacial until the present time. The relative time scale is based on palynostratigraphy and comparison to published results of other sites from the adjacent regions. During the Late Glacial two stages of the vegetation succession were revealed: steppe and forest during the Alleröd period and tundra-like vegetation during the Younger Dryas. The Holocene history consists of five stages of plant cover development. The special features of the Białowieża Forest are conditioned by two main factors: low degree of anthropogenic impact and influences of continental climate and boreal zone, stronger than in the other regions of Poland.