© 1987 Heron Publishing—Victoria, Canada
Differences in stem respiration responses to temperature between balsam fir trees in thinned and unthinned stands
M. B. Lavigne
Canadian Forestry Service, Newfoundland Forestry Centre, P.O. Box 6028, St. John’s, Newfoundland A1C 5X8, Canada / Received April 23, 1987
Summary
The change in stem respiration rates with change of temperature was significantly lower in a recently thinned balsam fir (Abies balsamea (L.) Mill.) stand than in an unthinned stand. A comparison of respiration measurements made in the morning with those made
in the afternoon indicated that there was more variation among afternoon readings and greater responses to changes in temperature
among morning readings. Lower respiration rates in the afternoon were more common in the thinned stand than in the unthinned
stand.
