Vegetation and climate history in the Westeifel Volcanic Field (Germany) during the past 11 000 years based on annually laminated lacustrine maar sediments
Thomas Litt|Christian Schölzel|Norbert Kühl|Achim Brauer
Lakes Holzmaar and Meerfelder Maar are located in the Westeifel Volcanic Field less than 10 km apart. Both maar lakes well known for their annually laminated (varved) sediments covering past 15 000 years. Here, we focus on reconstructing history of Holocene vegetation, human impact climate using high‐resolution pollen data. Detailed correlation between two records palynologically defined tie‐points provides first time a test precision individual varve chronologies. The both show continuous natural successions vegetation during early mid‐Holocene controlled by development soil, climate, immigration competitive expansion thermophilous tree species. From 6500 yr BP onwards, became an increasingly more important factor. Given high chronological records, regional similarities, but also local differences anthropogenically influenced changes, can be recognized. reconstructed July temperature 8500 5000 is around 1 °C higher today, most likely response to summer insolation related orbital forcing. High variability January temperatures as annual precipitation prominent climatic signal. This consistent with other several areas Europe which identify this period climatically highly variable.
Boreas