TY  - JOUR
A1  - Syrykh, Lydmila S.
A1  - Nazarova, Larisa B.
A1  - Herzschuh, Ulrike
A1  - Subetto, D. A.
A1  - Grekov, I. M.
T1  - Reconstruction of palaeoecological and palaeoclimatic conditions of the Holocene in the south of the Taimyr according to an analysis of lake  sediments
JF  - Contemporary Problems of Ecology
N2  - A sediment core from Khatanga-12 Lake (Taimyr Peninsula, Krasnoyarsk krai) has been studied. The 131.5-cm-long core covers ca. 7100 years of sedimentation. Chironomid analysis, a qualitative reconstruction of the paleoenvironment in the region, and a quantitative reconstruction of variations of the mean July air temperature and in the water depth of the lake have been performed using Northern Russia chironomid-inferred mean July temperature models (Nazarova et al., 2008, 2011, 2015). Khatanga-12 Lake was formed during the Middle Holocene warming as a result of thermokarst processes. The development of the lake ecosystem at different stages of its development was influenced by climatic and cryolithogenic factors. The Middle Holocene warming, which occurred around 7100-6250 cal. years BP, activated thermokarst processes and resulted in the formation of the lake basin. Later, between 6250 and 4500 cal. years BP, a period of cooling took place, as is proved by chironomid analysis. The bottom sediments of the lake during this period were formed by erosion processes on the lake shores. The reconstructed conditions were close to the modern after 2500 cal. years BP.
KW  - Chironomidae
KW  - paleolimnology
KW  - Holocene
KW  - climate reconstructions
KW  - Russian Arctic region
KW  - Khatanga
Y1  - 2017
U6  - https://doi.org/10.1134/S1995425517040114
SN  - 1995-4255
SN  - 1995-4263
VL  - 10
SP  - 363
EP  - 369
PB  - Pleiades Publ.
CY  - New York
ER  -