Authors: EASTER MJ SPIES TA

Citation: Mj. Easter et Ta. Spies, USING HEMISPHERICAL PHOTOGRAPHY FOR ESTIMATING PHOTOSYNTHETIC PHOTON FLUX-DENSITY UNDER CANOPIES AND IN GAPS IN DOUGLAS-FIR FORESTS OF THE PACIFIC-NORTHWEST, Canadian journal of forest research, 24(10), 1994, pp. 2050-2058