Download or read book Lodgepole Pine Clearcut Size Affects Minimum Temperatures Near the Soil Surface written by P. H. Cochran and published by . This book was released on 1969 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lodgepole Pine Clearcut Size Affects Minimum Temperatures Near the Soil Surface written by P. H. Cochran and published by . This book was released on 1969 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lodgepole Pine Clearcut Size Affects Minimum Temperatures Near Soil Surface written by and published by . This book was released on 1969 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lodgepole Pine Clearcut Size Affects Minimum Temperatures Near the Soil Surface Classic Reprint written by P. H. Cochran and published by Forgotten Books. This book was released on 2017-10-26 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book USDA Forest Service General Technical Report PNW written by and published by . This book was released on 1977 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Natural Regeneration of Lodgepole Pine in South central Oregon written by P. H. Cochran and published by . This book was released on 1973 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Environmental Effects of Forest Residues Management in the Pacific Northwest written by Owen P. Cramer and published by . This book was released on 1974 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seed Production of Central Oregon Ponderosa and Lodgepole Pines written by Walter G. Dahms and published by . This book was released on 1975 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil resource inventory written by Garwin T. Carlson and published by . This book was released on 1979 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Forest Ecosystem of Southeast Alaska written by and published by . This book was released on 1974 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physical and chemical properties of some Blue Mountain soils in the northeastern Oregon written by J. Michael Geist and published by . This book was released on 1978 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book USDA Forest Service Research Paper PNW written by and published by . This book was released on 1978 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ponderosa Promise written by Les Joslin and published by . This book was released on 2007 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research interest in the forests of Oregon and Washington east of the Cascade Range can be traced back to 1897, when Fredrick V. Coville of the Division of Forestry, U.S. Department of Agriculture, reconnoitered the Cascade Range Forest Reserve to report on forest growth and sheep grazing there in an 1898 report. Subsequent forest survey in the late 1890s and early 1900s was stimulated by anticipation of the timber boom that would follow arrival of a railroad. In 1908, Gifford Pinchot's new Forest Service sent young Thornton Taft Munger to study the encroachment of lodgepole pine (Pinus contorta Dougl. ex Loud.) on the more valuable ponderosa pine (Pinus ponderosa Dougl. ex Laws.) stands. By the end of the year, Munger was in charge of the North Pacific District's one-man Section of Silvics, which evolved to become the Pacific Northwest Forest Experiment Station in 1924 with him at the helm. The forest research effort east of the Cascade Range picked up speed with establishment in 1931 of the Pringle Falls Experimental Forest to research the ecologically and economically viable silvicultural systems that would convert the stagnant old-growth forests into more-productive secondgrowth forests. During the ensuing six and one-half decades, a small group of Forest Service researchers and their university counterparts working at the experimental forest and, beginning in 1963, the Bend Silviculture Laboratory, pioneered and pursued the practical silvicultural research that both led and responded to the evolution of their science.
Download or read book General Technical Report PNW GTR written by and published by . This book was released on 2007 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S D A Forest Service Research Note PNW written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1972 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Importance of Timber based Employment to the Douglas fir Region 1959 1971 written by Wilbur R. Maki and published by . This book was released on 1973 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
