Publikationen

Klara Tomaszewska et al.

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Klara Tomaszewska Katedra Botaniki i Ekologii Roślin, Uniwersytet Przyrodniczy we Wrocławiu,
pl. Grunwaldzki 24 a, 53-363 Wrocław, Polska


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Małgorzata Malkiewicz Pracownia Paleobotaniki, Zakład Geologii Stratygraficznej Instytutu Nauk Geologicznych,
Uniwersytet Wrocławski, ul Cybulskiego 34, 50-205 Wrocław, Polska


 
Magda Podlaska Katedra Botaniki i Ekologii Roślin, Uniwersytet Przyrodniczy we Wrocławiu,
pl. Grunwaldzki 24 a, 53-363 Wrocław, Polska


 

 

Historia rozwoju małego torfowiska z Uroczyska Mokradła w Borach Dolnośląskich


Abstract

History of the development of a small bog within Uroczyska Wetlands Lower Silesian Forests
One of the peatbogs of Uroczyska Mokradła in Bory Dolnośląskie Forest was studied by means of pollen and plant macroremains analyses. The bog was created by paludification. Four local pollen assemblage zones (L PAZ) were distinguished after palinological analysis then concluded that peat formation started during Atlantic period of Holocene and lasted until Subatlantic period. Developing of the bog was leading by phytocenoses characteristic for transition mire thus 0,95 m of Sphagno-Scheuzerieti has been deposited. Top 0,25 m is more like lower layers but instead of Scheuchzeria palustris the Rhynchospora alba dominate. Pollen spectrum of top zone should be correlated with youngest part of Subatlantic period and probably represents vegetation of last 500 years. At UM3 UM4 boundary (depth 0,20 and 0,25 m) there is probable sedimentation gap which covers younger part of Subboreal period and most of Subatlantic period. It is very likely that loss of peat is caused by peat mining by humans of those times. It can not be determinated how thick layer was excavated. However if excavation was stoped after water of the surface was set sedentation could start again. Assuming (after Żurek 1986) the average peat depth increase in Polish peatbogs is 0,56 mm per year, the sediment disturbance took place in Middle Ages.

Keywords

macroremains | palynology | Uroczysko Wetlands | Lower Silesian Forests


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