HR: 0800h
AN: H11F-0366 [Abstracts]
TI: Physical and Chemical Characteristics of Lakes in the Central Yakutian Lowlands, Russia
AU: * Kumke, T
EM: tkumke@awi-potsdam.de
AF: Alfred Wegener Institute for Polar and Marine Research, Telegrafenberg A 43, Potsdam, 14473
Germany
AU: Ksenofontova, M
EM: kmarta@ykt.ru
AF: Yakutsk State University, Belinski Street, Yakutsk, 677891
Russian Federation
AU: Pestryakova, L
EM: lapest@mail.ru
AF: Yakutsk State University, Belinski Street, Yakutsk, 677891
Russian Federation
AU: Hubberten, H W
EM: hubbert@awi-potsdam.de
AF: Alfred Wegener Institute for Polar and Marine Research, Telegrafenberg A 43, Potsdam, 14473
Germany
AB:
The Republic of Yakutia is located in the north-eastern part of Russia. In the central part of Yakutia, there are
approximately 106,000 lakes which cover an area of ca. one million hectare and have an approximate volume of more than 180
billion m3. The current limnological research work carried out in Central Yakutia is in the frame of a larger project aiming
in the reconstruction of the regional environmental history using aquatic organisms. The limnological part of this project
provides the basis to study the relationships between aquatic organisms and their environments, which is essential to derive
transfer functions for the reconstruction approach. The results shown on this poster are based on two expeditions during
summer 2003 and 2004, in which 47 lakes from two regions in the Central Yakutian Lowlands were sampled. The lake water
samples were analysed for electrical conductivity, pH, oxygen, lake water depth, secchi depth, water temperature, ionic
concentrations, nutrients, dissolved organic and inorganic carbon. The results of the measurements were used to classify the
lakes in order to find systematic patterns in terms of geology, anthropogenic impacts, land use, vegetation and regional
climate.
DE: 1803 Anthropogenic effects
DE: 1806 Chemistry of fresh water
DE: 1845 Limnology
DE: 1871 Surface water quality
SC: Hydrology [H]
MN: 2004 AGU Fall Meeting