. Twenty-year growth of ponderosa pine saplings thinned to five spacings in central Oregon. Ponderosa pine Oregon; Forest thinning Oregon. OOOO oooo OOOO OOOO oooo ^^^^ ^^^^^^^^ 8888 QOQS OOOO B CD in spacing (192 trees) A A cgr 0 cP (ftp A A A A A A o°o° tftP. spacing (48 trees) Cr cP cP E o o o cP o o o cP cP o o o cP spacing ( cP 24 trees) o o t spacing o (12 trees) Figure 2 —Diagramatic sketch of tree loca- tion at five spacings in full plots and 16-milacre subplots. Outer circles represent average crown size 20 years after thinning where un
. Twenty-year growth of ponderosa pine saplings thinned to five spacings in central Oregon. Ponderosa pine Oregon; Forest thinning Oregon. OOOO oooo OOOO OOOO oooo ^^^^ ^^^^^^^^ 8888 QOQS OOOO B CD in spacing (192 trees) A A cgr 0 cP (ftp A A A A A A o°o° tftP. spacing (48 trees) Cr cP cP E o o o cP o o o cP cP o o o cP spacing ( cP 24 trees) o o t spacing o (12 trees) Figure 2 —Diagramatic sketch of tree loca- tion at five spacings in full plots and 16-milacre subplots. Outer circles represent average crown size 20 years after thinning where understory vegetation was controlled; inner circles where vegetation was allowed to develop 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 Barrett, James W. (James Willis), 1922- cn; Pacific Northwest Forest and Range Experiment Station (Portland, Or. ) cn. Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U. S. Dept. of Agriculture, Forest Service
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
