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Effects of light exposure in freezing temperatures on winter damage to foliage of Norway spruce container seedlings in mid and late winter: Pilot experiments in open field
cell damage frost irradiance needle colour
2015/5/18
Norway spruce (Picea abies [L.] Karst.) is widely planted for reforestation in the boreal zone. It is sensitive
to frost and high irradiance during the growing season, and also to winter damage to f...
Effects of light exposure in freezing temperatures on winter damage to foliage of Norway spruce container seedlings in mid and late winter:Pilot experiments in an open field
cell damage frost irradiance needle colour Picea abies
2015/5/6
Norway spruce (Picea abies (L.) Karst.) is widely planted for reforestation in the boreal zone. It is sensitive to frost and high irradiance during the growing season, and also to winter damage, which...
Nitrogen Dioxide in the Urban Forest: Exposure and Uptake
urban forest street trees photochemical oxidant cycle pollution
2014/11/17
Nitrogen dioxide (NO2) levels were measured inside and adjacent to canopies of urban trees in Springfield, MA, over two growing seasons. Nitrogen dioxide levels were consistently and significantly hig...
B(1-->3)-GLUCAN EXPOSURE LEVELS AMONG WORKERS IN FOUR BRITISH COLUMBIA SAWMILLS
glucan bioaerosols wood dust occupational exposure
2010/12/24
B(1-->3)-glucans were extracted from wood dust samples taken during the summer of 1997 at four British Columbia sawmills. Personal dust samples were collected using a GSP-sampler for inhalable dust an...
EXPOSURE OF FARMERS TO DUST ON PRIVATE FARMS OF VARIOUS PRODUCTION PROFILES
agricultural dust occupational exposure farmer plant production
2010/12/24
In the light of studies of dustiness in agriculture conducted in Poland and abroad, which deal exclusively with dust risk while performing selected occupations,the results presented in this article ar...