ISSN:
1573-2932
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
Notes:
Abstract The water relations physiology of Pinus contorta × Pinus banksiana and several other important boreal species was studied intensively during 1975–1976 in the vicinity of the West Whitecourt Sulphur Recovery Gas Plant near Whitecourt, Alberta, Canada as part of the West Whitecourt Case Study. Xylem pressure potentials of pine varied from −0.3 MPa to −1.6 MPa and were not noticeably different from pine in areas not receiving S gas emissions such as the Richardson Fire Tower near Fort McMurray, Alberta. Leaf diffusive resistance varied from 2 scm−1 to 60+ s cm−1. The xylem pressure potentials of Picea mariana, Arctostaphylos uva-ursi, and Ledum groenlandicum, were not measurably different from values reported in the literature. Based upon xylem pressure potentials, and leaf diffusive resistances, the water relations of all the species studied in the vicinity of the West Whitecourt Gas Plant did not seem to be measurably affected by S gas emissions. It is concluded that the effects of S gas emission upon photosynthesis are not due to moisture stress.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00208403
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