. Potential production in thinned Douglas-fir plantations. Douglas fir; Forests and forestry Mensuration; Forest thinning. stems, the sequences with fewest stems can be considered high-intensity thin- ning schedules. Examination of mean diameters after thinning (fig. 7) bears this out. Stands carried at low numbers of stems have larger diameters than those carried at relatively high numbers. These diameters indicate average size of tree available for harvest at each age. Many small trees must be re- moved by thinning before final harvest of the larger trees. 25_ CO -c20 o c X (J LU 1 15 \- w &
. Potential production in thinned Douglas-fir plantations. Douglas fir; Forests and forestry Mensuration; Forest thinning. stems, the sequences with fewest stems can be considered high-intensity thin- ning schedules. Examination of mean diameters after thinning (fig. 7) bears this out. Stands carried at low numbers of stems have larger diameters than those carried at relatively high numbers. These diameters indicate average size of tree available for harvest at each age. Many small trees must be re- moved by thinning before final harvest of the larger trees. 25_ CO -c20 o c X (J LU 1 15 \- w < LU DC CO h- < 10 DC < Q 0. see figure 1 for code _L 10 20 30 AGE (years) 40 50 60 Figure of residual stand immediately after thinning (site index range. 130-147). 1 2. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bruce, David, 1916-; Pacific Northwest Forest and Range Experiment Station (Portland, Or. ). Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U. S. Dept. of Agriculture
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Keywords: ., bookcentury1900, bookcollectionbiodiversi, booksubjectdouglasfir
