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The possible role of air quality in sugar maple decline

Conference · · Proceedings, Annual Meeting, Air Pollution Control Association; (USA)
OSTI ID:5030619
 [1]
  1. Ontario Ministry of the Environment, Toronto, ON (Canada)
The decline of sugar maple (Acer saccharum L.) was first reported to occur in North America in 1913. A review of the literature on the occurrence of sugar maple decline and the associated causal agents was made in 1986 based on 189 reports. No single cause for the decline was identified with a number of diverse factors being reported to be involved. These factors included defoliating insects, drought, nutritional deficiencies, improper woodlot management, secondary root rot organisms, road salt and acidic precipitation. In the Provinces of Quebec and Ontario, Canada, intensive studies into the occurrence and etiology of sugar maple decline commenced in the early 1980s. Maple syrup producers in both provinces complained that sugar maple trees were declining and dying in greater numbers than usual and suspected that air pollution, including acidic precipitation, was involved. This paper describes the symptoms associated with sugar maple decline, the surveys underway in both provinces, and the field and experimental studies being carried out to determine the role of air quality.
OSTI ID:
5030619
Report Number(s):
CONF-870695--
Conference Information:
Journal Name: Proceedings, Annual Meeting, Air Pollution Control Association; (USA) Journal Volume: 1
Country of Publication:
United States
Language:
English