УДК |
Аннотация: The report deals with a study of the old Norway spruce plantations ranging from 30 to 45 years in age and widely distributed in the Great Lake-St. Data were collected in 12 plantations from a total of 23 fifth-acre plots. All stands were planted during the 1914-1928 period and some of them have contributrd seed for the more recent establishment of some 1,000 acres of second generation plantations
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