Skip to main content
Have a personal or library account? Click to login
CO2 flux measurements in Russian Far East tundra using eddy covariance and closed chamber techniques Cover

CO2 flux measurements in Russian Far East tundra using eddy covariance and closed chamber techniques

Open Access
|Jan 2003

Abstract

The objective of this study was to estimate the CO2 exchange of a tundra ecosystem in the Russian Far East using the eddy covariance technique using closed-chamber measurements as a reference. An eddy covariance tower was placed near the Lavrentiya settlement (Chukotskiy Peninsula, Russia, 65° 36′N, 171°04′W) within a typical tundra landscape. During the 85 d of continuous measurements [Julian days (JD) 205–289, 2000] the CO2 exchange of the studied ecosystem was found to be close to equilibrium (a carbon sink at 10.2 gC m−2). In the late summer period (JD 205–240) the ecosystem sequestered 32.1 gC m−2, whereas in autumn (JD 241–289), it was functioning as a carbon source of 21.9 gC m−2. Model-based estimates of ecosystem respiration and gross primary production were obtained over the period of observations. These are the first eddy covariance-based measurements performed in the Russian tundra.

Language: English
Page range: 879 - 892
Submitted on: Jan 15, 2002
Accepted on: Mar 11, 2003
Published on: Jan 1, 2003
Published by: Stockholm University Press
In partnership with: Paradigm Publishing Services

© 2003 D. G. Zamolodchikov, D. V. Karelin, A. I. Ivaschenko, W. C. Oechel, S. J. Hastings, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.