Full text of this article is only available in PDF format.

Pertti Hari (email), Eeva Korpilahti, Toivo Pohja, Pentti K. Räsänen

A field system for measuring the gas exchange of forest trees.

Hari P., Korpilahti E., Pohja T., Räsänen P. K. (1990). A field system for measuring the gas exchange of forest trees. Silva Fennica vol. 24 no. 1 article id 5405. https://doi.org/10.14214/sf.a15557

Abstract

A third generation of forest tree gas exchange measuring system design for the use in the field is described. The system is designed to produce data for determining the dependence of the rate of tree photosynthesis, respiration and transpiration on environmental factors. The system consists of eight cuvettes, a tubing system, two infrared gas analysers, an air flow controller, a data logger, and a computer. The measuring cuvette is a clap type, i.e. it is mostly open, only closing during measurement. CO2 exchange is measured as the change in the cuvette concentration of CO2, and, transpiration is measured as the increase in water vapour concentration while the cuvette is closed. The environmental factors measured are temperature, irradiance and air pressure. The system was planned in 1987 and constructed in 1988. It worked reliably in late summer 1988 and the quality of data seems to be satisfactory. 

The PDF includes an abstract in Finnish.

Keywords
photosynthesis; CO2; monitoring; measuring methods; transpiration; environment; gas exchange; respiration

Published in 1990

Views 4256

Available at https://doi.org/10.14214/sf.a15557 | Download PDF

Creative Commons License CC BY-SA 4.0

Register
Click this link to register to Silva Fennica.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Send to email
Finér L., (1991) Root biomass on an ombrotrophic pine bog and the.. Silva Fennica vol. 25 no. 1 article id 5436 (remove) | Edit comment
Kankaanhuhta V., Saksa T. et al. (2009) Variation in the results of Norway spruce planti.. Silva Fennica vol. 43 no. 1 article id 217 (remove) | Edit comment
Macias N., Knowles C. (2011) Examining the effect of environmental certificat.. Silva Fennica vol. 45 no. 1 article id 34 (remove) | Edit comment
Cajander A. K., (1942) Adolescence of professor J.P. Norrlin Acta Forestalia Fennica vol. 50 no. 15 article id 7368 (remove) | Edit comment
Järveläinen V.-P., (1981) Aspects of research strategy in studying forest .. Silva Fennica vol. 15 no. 1 article id 5099 (remove) | Edit comment
Kellomäki S., (1979) Benefits of forests in urban environment  Silva Fennica vol. 13 no. 2 article id 5029 (remove) | Edit comment
Rossi S., Morin H. et al. (2013) Spatially explicit structure of natural stands d.. Silva Fennica vol. 47 no. 3 article id 973 (remove) | Edit comment
Liziniewicz M., Barbeito I. et al. (2022) Production of genetically improved silver birch .. Silva Fennica vol. 56 no. 1 article id 10512 (remove) | Edit comment
Škvor P., Jankovský M. et al. (2023) Evaluation of stress loading for logging truck d.. Silva Fennica vol. 57 no. 1 article id 10709 (remove) | Edit comment
Vanhanen H., Veteli T. O. et al. (2007) Climate change and range shifts in two insect de.. Silva Fennica vol. 41 no. 4 article id 469 (remove) | Edit comment
Kretschmer U., Kirchner N. et al. (2013) A new approach to assessing tree stem quality ch.. Silva Fennica vol. 47 no. 5 article id 1071 (remove) | Edit comment
Hari P., Korpilahti E. et al. (1990) A field system for measuring the gas exchange of.. Silva Fennica vol. 24 no. 1 article id 5405 (remove) | Edit comment
Your search results