Seed Production of Central Oregon Ponderosa and Lodgepole Pines PDF Download
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Author: Walter G. Dahms
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 20
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Author: Walter G. Dahms
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 20
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Book Description
Author: Walter G. Dahms
Publisher: Forgotten Books
ISBN: 9781390415889
Category : Business & Economics
Languages : en
Pages : 30
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Book Description
Excerpt from Seed Production of Central Oregon Ponderosa and Lodgepole Pines Mountain variety, cones are generally not serotinous and seeds are shed within the first year after cone maturation (critchfield 1957, Mowat 1960, Trappe and Harris Furthermore, central Oregon lodgepole pine stands are normally regenerated by natural means, usually shelterwood. The present desire to maintain a continuous forest cover also makes the shelterwood or seed tree method an attractive approach to regener ating even-aged ponderosa pine (pinus ponderosa) stands and increases interest in frequency and size of ponderosa pine seed cr0ps. 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.
Author: Kenneth W. Seidel
Publisher:
ISBN:
Category : Forest thinning
Languages : en
Pages : 20
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Author: Frank C. Sorensen
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 36
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Author: Frank C. Sorensen
Publisher:
ISBN:
Category : Plant ecological genetics
Languages : en
Pages : 32
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Author: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 22
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Author: P. H. Cochran
Publisher:
ISBN:
Category : Forest regeneration
Languages : en
Pages : 20
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A sequence of events is necessary for natural regeneration in the pumice soil region: Adequate seed must be probed and distributed over the area, germination must be favored by warm and moist surface soils, daily surface temperature variation must be moderate, seedlings must survive summer drought, and weather conditions must prevent severe frost heaving the fall after germination and the next spring. This sequence does not always occur within a reasonable time after cutting, and natural regeneration is often delayed. Four possibilities are open to the land manager: (1) declare as noncommercial some severe sites such as lodgepole pine/needlegrass and lodgepole pine/bitterbrush/needlegrass plant communities on flat or basin topography; (2) depend more on a planting program; (3) leave a light slash cover on the surface after shelterwood or narrow strip cutting; and (4) leave a shelterwood on the area after a more thorough slash treatment and be willing to wait much longer than 5 years for natural regeneration. Some problems now exist in obtaining good lodgepole planting stock. Also the slash cover does not guarantee success of natural regeneration and option 3 might turn into option 4.
Author: Frank C. Sorensen
Publisher:
ISBN:
Category : Fertilization of plants
Languages : en
Pages : 16
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Author: Ronald Eugene Stewart
Publisher:
ISBN:
Category : Brush
Languages : en
Pages : 642
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 222
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