Lodgepole Pine Clearcut Size Affects Minimum Temperatures Near the Soil Surface
Author : P. H. Cochran
Publisher :
Page : 534 pages
File Size : 29,49 MB
Release : 1969
Category : Clearcutting
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Author : P. H. Cochran
Publisher :
Page : 534 pages
File Size : 29,49 MB
Release : 1969
Category : Clearcutting
ISBN :
Author : P. H. Cochran
Publisher :
Page : 9 pages
File Size : 36,95 MB
Release : 1969
Category : Clearcutting
ISBN :
Author :
Publisher :
Page : 9 pages
File Size : 41,20 MB
Release : 1969
Category : Clearcutting
ISBN :
Author : P. H. Cochran
Publisher : Forgotten Books
Page : 22 pages
File Size : 12,34 MB
Release : 2017-10-26
Category :
ISBN : 9780265783283
Excerpt from Lodgepole Pine Clearcut Size Affects Minimum Temperatures Near the Soil Surface The view factor is the fraction of radiation leaving a surface in all directions that is intercepted by another Of concern here is the View factor of a spot on a horizontal surface relative to the Open sky. The greater the View factor for a particular spot, the more closely the net radiation flux of that spot will resemble the net radiation flux of a similar surface in a completely Open area under the same meteorological conditions. View factors were calculated for circular Openings of various widths and for rectangular Openings Of various lengths and widths. View factors were also calculated for spots at various distances from the stand edge for very large clearcuts where the spots were influenced by only one stand edge. The equations used in these calcula tions and their derivations are given in the Appendix. 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 :
Publisher :
Page : 44 pages
File Size : 16,43 MB
Release : 1976
Category : Forest soils
ISBN :
An annotated bibliography supplementing bibliographies by Tarrant for 1956 through 1963 and by Klock for 1969 through 1974.
Author :
Publisher :
Page : 668 pages
File Size : 44,45 MB
Release : 1977
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Author : P. H. Cochran
Publisher :
Page : 20 pages
File Size : 15,15 MB
Release : 1973
Category : Forest regeneration
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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 : Owen P. Cramer
Publisher :
Page : 560 pages
File Size : 13,93 MB
Release : 1974
Category : Forest ecology
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Author : Walter G. Dahms
Publisher :
Page : 20 pages
File Size : 40,44 MB
Release : 1975
Category : Lodgepole pine
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Author : Garwin T. Carlson
Publisher :
Page : 244 pages
File Size : 41,62 MB
Release : 1979
Category : Forest soils
ISBN :