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Seasonal variation in leaf weight and nitrogen content of Douglas-fir plantations in the Coast Range and Cascade Mountains of western Oregon

Creator:

Smith, Robert Bruce

Abstract:

Seasonal variations in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) leaf weight and nitrogen content were measured in Oregon's Coast and western Cascade Ranges. Current and older foliage from thinned and unthinned stands were sampled monthly from October, 1978 to September, 1979. Changes in leaf weight per unit area of foliage and...

Resource Type:

Masters Thesis