TY  - JOUR
AU  - Kuhl, N.
AU  - Moschen, R.
TI  - A combined pollen and  18O Sphagnum record of mid-Holocene climate variability from Durres Maar (Eifel, Germany)
JO  - The Holocene
VL  - 22
IS  - 10
SN  - 1477-0911
CY  - Los Angeles, Calif. [u.a.]
PB  - Sage
M1  - FZJ-2015-03461
SP  - 1075 - 1085
PY  - 2012
AB  - In this study we investigate pollen and oxygen isotopes of moss cellulose from the peat bog ‘Dürres Maar’ in the Eifel low mountain range, Germany (450 m a.s.l.) to quantitatively infer mid-Holocene climate change for the period between ~7000 and 3800 cal. BP. Pollen was analysed on the same samples from which Sphagnum leaves were isolated to extract cellulose for the determination of its oxygen isotope composition (δ18OSphagnum). To quantitatively estimate January and July temperature and annual precipitation from the pollen data, we applied a probabilistic indicator taxa method (‘pdf-method’). The pollen-based reconstructions indicate July temperatures ~1°C higher around 6000 cal. BP than after ~5500 cal. BP, which is consistent with a ~1‰ decrease in δ18OSphagnum during the same period. While the pollen-based climate reconstructions indicate little variability in summer temperature after ~5500 cal. BP, winter temperature shows several pronounced cold excursions of ~2–4°C in this period, which was likely accompanied by changes in precipitation patterns. Test reconstructions leaving out specific taxa indicate that not only larger climate trends, but also relatively small-scale climate variability can robustly be reconstructed with the pdf-method. This is of particular importance for reliable reconstructions of climate variability not only during the Holocene, but also in former interglacials, for which archives are rare and pollen is often the only suitable proxy in terrestrial records. The stable isotope values agree with the reconstructions based on pollen for the time between ~4500 and 3500 cal. BP, but not for the period before 4500 cal. BP. We explain this difference by atmospheric circulation patterns being different in the mid and late Holocene, respectively. 
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000308883300001
DO  - DOI:10.1177/0959683612441838
UR  - https://juser.fz-juelich.de/record/201156
ER  -