An automatic system for measurements of gas exchange and environmental factors in a forest stand, with special reference to measuring principles.

A system for measuring the net photosynthesis, transpiration and environmental factors within the canopy and ground cover vegetation is described. The system operates continuously throughout the growing season in a young Scots pine ( L.) stand. A data-logging unit controls the system and carries out...

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Bibliographic Details
Main Authors: Hari, Pertti, Kanninen, Markku, Kellomäki, Seppo, Luukkanen, Olavi, Pelkonen, Paavo, Salminen, Raimo, Smolander, Heikki
Format: Article
Language:English
Published: Finnish Society of Forest Science 1979-01-01
Series:Silva Fennica
Online Access:https://www.silvafennica.fi/article/5019
Description
Summary:A system for measuring the net photosynthesis, transpiration and environmental factors within the canopy and ground cover vegetation is described. The system operates continuously throughout the growing season in a young Scots pine ( L.) stand. A data-logging unit controls the system and carries out the measurements on the readings of the sensors of photosynthesis, transpiration, light intensity outside the canopy, light climate inside the assimilation chambers, and dry and wet temperatures from selected points. These measurements are shown digitally and automatically punched onto paper tape.Pinus sylvestris
ISSN:2242-4075