Author: P. H. CochranPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 36
Book Description
Thirty-five-year Growth of Ponderosa Pine Saplings in Response to Thinning and Understory Removal
Author: P. H. CochranPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 36
Book Description
Thirty-five-year Growth of Ponderosa Pine Saplings in Response to Thinning and Understory Removal
Author: P. H. CochranTwenty-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 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
Large-crowned Planted Ponderosa Pine Respond Well to Thinning
Author: James Willis BarrettPublisher:
ISBN:
Category : Ponderosa pine
Languages : en
Pages : 12
Book Description
Brush Reduces Growth of Thinned Ponderosa Pine in Northern California
Author: William W. OliverPublisher:
ISBN:
Category : Forest thinning
Languages : en
Pages : 12
Book Description
Economics of Thinning Stagnated Ponderosa Pine Sapling Stands in the Pine-grass Areas of Central Washington
Author: Robert W. SassamanPublisher:
ISBN:
Category : Forest management
Languages : en
Pages : 24
Book Description
Response of Individual Ponderosa Pine Trees to Fertilization
Author: P. H. CochranPublisher:
ISBN:
Category : Nitrogen fertilizers
Languages : en
Pages : 16
Book Description
Latest Results from the Pringle Falls Ponderosa Pine Spacing Study
Author: James Willis BarrettPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 24
Book Description