W pracy przedstawiono wyniki badań nad przestrzenną zmiennością skażenia gleb cezem-137. Szczegółowe studia prowadzone były w niewielkiej, rolniczej zlewni położonej w północnej części Wyżyny Lubelskiej. Na podstawie wyników analiz 85 próbek glebowych stwierdzono występowanie znacznego zróżnicowania sumarycznego ładunku izotopu w zlewni. Jako główny czynnik redystrybucji cezu w krajobrazie rolniczym wskazano procesy denudacyjne.
EN
This paper presents the results of studies on the spatial variability of caesium-137 contamination in soils. The detailed studies were conducted within small, agricultural catchment located in northern part of the Lublin Upland. Based on the results .ie rived from the analysis of 85 soil samples, a significant variability of total caesium activity within the catchment was determined. The denudation processes were indicated as a main factor of cesium redistribution within the farming landscape.
Geological mapping in eastern Poland resulted in new find of organic deposits near Włodawa. Pollen and plant macrofossils analyses at the Dobropol site proved deposition during the Mazovian (Holsteinian) Interglacial (MIS 11) Pollen spectra indicated strong predominance of Carpinus in the optimum phase (pollen period III), suggesting intensive influence of continental climate in this part of Poland. The paleolake Dobropol was shallow, with many species of rushes in a littoral zone. During the Liviecian (MIS 10) and the Krznanian (MIS 8) Glaciations the reservoir was occupied by an ice-dam lake, in which silt and clay deposition prevailed. The Mazovian Interglacial organic deposits were also recorded in immediate surroundings of the study area. Based on geological and paleobotanical examination of the Dobropol site, the ice sheet of the Krznanian Glaciation seemed to have reached at least the southern part of Włodawa. The ice sheet has not covered presumably the whole study area as its advance occurred in several lobes. The surroundings of Włodawa in the West Polesie Region are the third largest Mazovian paleo-lakeland area in Poland, apart from the vicinities of Biała Podlaska and the Łuków Plain.
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.