TY  - THES
A1  - Heinecke, Liv
T1  - Environmental change in the Eastern Pamir Mountains during last 28 cal ka BP
BT  - a multi-proxy study investigating sediments from Lake Karakul
Y1  - 2018
ER  - 
TY  - JOUR
A1  - Heinecke, Liv
A1  - Fletcher, W. J.
A1  - Mischke, Steffen
A1  - Tian, Fang
A1  - Herzschuh, Ulrike
T1  - Vegetation change in the eastern Pamir Mountains, Tajikistan, inferred from Lake Karakul pollen spectra of the last 28 kyr
JF  - Palaeogeography, palaeoclimatology, palaeoecology : an international journal for the geo-sciences
N2  - We present a pollen record for last 28 cal kyr BP from the eastern basin of Lake Karakul, the largest lake in Tajikistan, located in the eastern Pamir Mountains at 3915 m asl, a geographically complex region. The pollen record is dominated by Artemisia and Chenopodiaceae, while other taxa, apart from Poaceae, are present in low quantities and rarely exceed 5% in total. Arboreal pollen occur predominantly from similar to 28 to similar to 13 cal kyr BP, but as likely no trees occurred in the high mountain regions of the eastern Pamir during this time due to the high altitude and cold climate, arboreal taxa are attributed to long distance transport, probably by the Westerlies, the dominant atmospheric circulation. Tree pollen influx decreases strongly after similar to 13 cal kyr BP, allowing the pollen spectra to be interpreted as a regional vegetation signal. We infer that from 27.6 to 19.4 cal kyr BP the eastern Pamir was dominated by dry mountain steppe with low vegetation cover, while from 19.0 to 13.6 cal kyr BP Artemisia values increase and Chenopodiaceae, most herb taxa, and inferred far distant input from arboreal taxa decrease. Between 12.9 and 6.7 cal kyr BP open steppe vegetation dominated with maximum values in Ephedra, and while steppe taxa still dominated the spectra from 5.4 to 1 cal kyr BP, meadow taxa start to increase. During the last millennium, alpine steppe and alpine meadows expanded and a weak human influence can be ascertained from the increase of Asteraceae and the occurrence of Plantago pollen in the spectra.
KW  - Arid Central Asia
KW  - High Asia
KW  - palynology
KW  - vegetation reconstruction
KW  - lake sediments
Y1  - 2018
U6  - https://doi.org/10.1016/j.palaeo.2018.08.010
SN  - 0031-0182
SN  - 1872-616X
VL  - 511
SP  - 232
EP  - 242
PB  - Elsevier
CY  - Amsterdam
ER  -