Author: James Willis BarrettPublisher:
ISBN:
Category : Forest thinning
Languages : en
Pages : 24
Book Description
Twenty-year Growth of Ponderosa Pine Saplings Thinned to Five Spacings in Central Oregon
Author: James Willis BarrettPublisher:
ISBN:
Category : Forest thinning
Languages : en
Pages : 24
Book Description
Twenty-Year Growth of Ponderosa Pine Saplings Thinned to Five Spacings in Central Oregon (Classic Reprint)
Author: James Willis BarrettPublisher: Forgotten Books
ISBN: 9781390459296
Category : Business & Economics
Languages : en
Pages : 32
Book Description
Excerpt from Twenty-Year Growth of Ponderosa Pine Saplings Thinned to Five Spacings in Central Oregon Stand density and understory vegeta tion have had significant effects on height growth throughout 20 years of observation following thinning. Under story vegetation has had the greatest effect on height growth at the wider spacings, reducing growth from 15 to 50 percent during some periods. Twenty years after thinning, low density plots contain less woo'd fiber than high density plots. On the other hand, widely spaced trees are much larger than narrowly spaced trees and collectively are now producing almost as much wood volume annually as high density plots. Even though most of the trees left after thinning were 70 years old, stagnated, and suppressed by overstory, they have responded well to overstory removal and release, and trees at the three widest spacings appear capable of producing a usable crop of timber despite their advanced age. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Twenty-year Growth of Ponderosa Pine Saplings Thinned to Five Spacings in Central Oregon
Author: Twenty-year Growth of Ponderosa Pine Saplings Thinned to Five Spacings in Central Oregon
Author: James W. BarrettA Ponderosa Pine-lodgepole Pine Spacing Study in Central Oregon
Author: Kenneth W. SeidelPublisher:
ISBN:
Category : Forest thinning
Languages : en
Pages : 20
Book Description
Growth of Ponderosa Pine Thinned to Different Stocking Levels in Central Oregon
Author: P. H. CochranPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 36
Book Description
Large-crowned Planted Ponderosa Pine Respond Well to Thinning
Author: James Willis BarrettPublisher:
ISBN:
Category : Ponderosa pine
Languages : en
Pages : 12
Book Description
Twenty-years Growth of Ponderosa Pine Saplings Thinned to Five Spacings in Central Oregon
Author: J. W. BarrettA Ponderosa Pine-Lodgepole Pine Spacing Study in Central Oregon
Author: Kenneth W. SeidelPublisher: Forgotten Books
ISBN: 9781396064005
Category : Business & Economics
Languages : en
Pages : 26
Book Description
Excerpt from A Ponderosa Pine-Lodgepole Pine Spacing Study in Central Oregon: Results After 20 Years Twenty years after planting, the net volume yield of pure ponderosa pine and pure lodgepole pine at the five spacings reflect the pattern of growth during this time - less wood produced by ponderosa pine at the 6 9 and 12-foot spacings and more wood produced at the 15 and 18-foot spacings when compared to lodgepole pine. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Twenty-year Growth of Thinned and Unthinned Ponderosa Pine in the Methow Valley of Northern Washington
Author: James Willis BarrettPublisher:
ISBN:
Category : Pine
Languages : en
Pages : 20
Book Description