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- Cohen, W.B.; Spies, T.A.; Bradshaw, G.A.
- Remote sensing of environment 1990 v.34 no.3 pp. 167
- Pseudotsuga menziesii; forests; remote sensing; image analysis; canopy; stand structure; Oregon
- ... Semivariograms were used to exploit the spatial information inherent in digital imagery of a variety of Douglas-fir [Pseudotsuga menziesii (Mirbel) Franco] forest stands in the Pacific Northwest region of the United Stataes. Calculations involved digital numbers from single transects of pixels representative of each stand and from a full spatial matrix of pixels from each stand. Digitized aerial v ...