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Long Term Stand Dynamics In High Elevation Engelmann Spruce Subalpine Fir Forests Microform
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Author :Michael James Jull Publisher :National Library of Canada = Bibliothèque nationale du Canada ISBN 13 : Total Pages :290 pages Book Rating :4.:/5 (66 download)
Book Synopsis Long-term Stand Dynamics in High-elevation Engelmann Spruce-subalpine Fir Forests [microform] by : Michael James Jull
Download or read book Long-term Stand Dynamics in High-elevation Engelmann Spruce-subalpine Fir Forests [microform] written by Michael James Jull and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1990 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Long-term Stand Dynamics in High-elevation Engelmann Spruce-subalpine Fir Forests by : Michael James Jull
Download or read book Long-term Stand Dynamics in High-elevation Engelmann Spruce-subalpine Fir Forests written by Michael James Jull and published by . This book was released on 1990 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Long-term Stand Dynamics in High-elevation Engelmann Spruce-subalpine Fir Forests by : M. J. Jull
Download or read book Long-term Stand Dynamics in High-elevation Engelmann Spruce-subalpine Fir Forests written by M. J. Jull and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ecology, Silviculture, and Management of the Engelmann Spruce--subalpine Fir Type in the Central and Southern Rocky Mountains by : Robert R. Alexander
Download or read book Ecology, Silviculture, and Management of the Engelmann Spruce--subalpine Fir Type in the Central and Southern Rocky Mountains written by Robert R. Alexander and published by . This book was released on 1987 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Management of Spruce-fir in Even-aged Stands in the Central Rocky Mountains by : Robert R. Alexander
Download or read book Management of Spruce-fir in Even-aged Stands in the Central Rocky Mountains written by Robert R. Alexander and published by . This book was released on 1980 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stand structure and successional status of two spruce-fir forests in southern Utah by : Donald P. Hanley
Download or read book Stand structure and successional status of two spruce-fir forests in southern Utah written by Donald P. Hanley and published by . This book was released on 1975 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Yield Tables for Managed Even-aged Stands of Spruce-fir in the Central Rocky Mountains by : Robert R. Alexander
Download or read book Yield Tables for Managed Even-aged Stands of Spruce-fir in the Central Rocky Mountains written by Robert R. Alexander and published by . This book was released on 1975 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Developmental Dynamics of Engelmann Spruce-subalpine Fir Forests of the Colorado Front Range by : Gregory H. Aplet
Download or read book Developmental Dynamics of Engelmann Spruce-subalpine Fir Forests of the Colorado Front Range written by Gregory H. Aplet and published by . This book was released on 1987 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development and Structure of Three High-elevation Old Spruce-fir Stands in the Quesnel Highland of East-central British Columbia by : O. A. Steen
Download or read book Development and Structure of Three High-elevation Old Spruce-fir Stands in the Quesnel Highland of East-central British Columbia written by O. A. Steen and published by University of British Columbia Press. This book was released on 2005 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study describes the composition, size and age structure, and development of three old Engelmann spruce-subalpine fir stands at high elevations (>1500 m) in the Quesnel Highland in east-central British Columbia. The descriptions provide a basis for designing alternative silvicultural systems that will maintain usable old-forest habitat for mountain caribou and other old-growth-dependent species. Subalpine fir, which comprised 86% of all stems in the three stands, had inverse-J-shaped size and age profiles. Engelmann spruce included the largest trees in each stand but had bimodal size and age profiles. Age structure interpretations suggest that the stands have developed over periods of about 290-450 years since the last major stand-level disturbances (probably wildfires). Current stand age structures contain no clear evidence of post-establishment stand-level disturbances, although the data do not exclude the possibility of such disturbances. Approximately 29% of the fir trees and 13% of the spruce trees were dead. Age analyses of the tree seedling banks in the three stands indicate stable populations with continuous recruitment during the last 40 years. Young seedlings occurred preferentially on woody debris in advanced stages of decay, suggesting that seedling density differences among stands may be due at least partially to differences in the amount of woody debris. The stand that apparently had the shortest time (about 290 years) for development since major disturbance had a structure that was still adjusting to disturbance. Evidence of this adjustment includes a bimodal fir age distribution and a high density of small trees that are apparently undergoing thinning. In addition, this stand had very few large (>60 cm dbh) live or dead trees and low volumes of coarse woody debris, especially in large and well-decomposed pieces, compared to the other two stands. A comparison of the three stands in this study suggests that naturally established high-elevation forests of the ESSFwc3 may not achieve some old-growth attributes, such as large dead trees and large, well-decomposed woody debris, until 400 or more years following initiation. The two stands in this study with the longest period of development (at least 450 years) had balanced size and age structures and well-represented old-growth attributes such as large dead trees and large, well-decayed woody debris. Planted stands may achieve some ESSFwc3 old-growth features several decades sooner than natural stands, due to a shorter stand initiation period. The alternative silvicultural system that has been proposed for maintaining suitable mountain caribou habitat following harvesting in this area (group selection system with 240-year rotation) will likely result in stands with many old-growth features, including abundant arboreal lichens. Some features that may not be present in these stands include a uniform inverse-J age distribution, many large (>60 cm dbh) live and standing dead trees, and large-diameter, well-decayed woody debris. As old stands in the ESSFwc3 continue to age without outside disturbance, the spruce component of the stands will likely decline. Partial harvesting would help to maintain a significant component of spruce in these stands.
Book Synopsis Diameter and Basal Area Distributions in Old-growth Spruce-fir Stands in Colorado by : Robert R. Alexander
Download or read book Diameter and Basal Area Distributions in Old-growth Spruce-fir Stands in Colorado written by Robert R. Alexander and published by . This book was released on 1985 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Natural Regeneraion of Subalpine Fir and Engelmann Spruce in Partially Harvested High-elevation Stands in East-central British Columbia by :
Download or read book Natural Regeneraion of Subalpine Fir and Engelmann Spruce in Partially Harvested High-elevation Stands in East-central British Columbia written by and published by . This book was released on 2008 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of Stand Structure in the Uneven-aged Stands in the Engelmann Spruce-subalpine Fir Type on the Utah State University Forest by : Raymond R. Moore
Download or read book A Study of Stand Structure in the Uneven-aged Stands in the Engelmann Spruce-subalpine Fir Type on the Utah State University Forest written by Raymond R. Moore and published by . This book was released on 1964 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Base-age conversion and site-index equations for Engelmann spruce stands in the central and southern Rocky Mountains by : Gary W. Clendenen
Download or read book Base-age conversion and site-index equations for Engelmann spruce stands in the central and southern Rocky Mountains written by Gary W. Clendenen and published by . This book was released on 1977 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Crown Competition Factor (CCF) for Engelmann Spruce in the Central Rocky Mountains by : Robert R. Alexander
Download or read book Crown Competition Factor (CCF) for Engelmann Spruce in the Central Rocky Mountains written by Robert R. Alexander and published by . This book was released on 1971 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Ecology of the Engelmann Spruce - Subalpine Fir Zone by : Judith Alldrtitt-McDowell
Download or read book The Ecology of the Engelmann Spruce - Subalpine Fir Zone written by Judith Alldrtitt-McDowell and published by . This book was released on 1998 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seedfall and Establishment of Engelmann Spruce in Clearcut Openings by : Robert R. Alexander
Download or read book Seedfall and Establishment of Engelmann Spruce in Clearcut Openings written by Robert R. Alexander and published by . This book was released on 1969 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stand Basal-area and Tree-diameter Growth in Red Spruce-fir Forests in Maine, 1960-80 by : Stanley J. Zarnoch
Download or read book Stand Basal-area and Tree-diameter Growth in Red Spruce-fir Forests in Maine, 1960-80 written by Stanley J. Zarnoch and published by . This book was released on 1990 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: S2Stand basal area change and individual surviving red spruce d.b.h. growth from 1960 to 1980 were analyzed for red spruce-fir stands in Maine. Regression modeling was used to relate these measures of growth to stand and tree conditions and to compare growth throughout the period. Results indicate a decline in growth. The regression models helped identify trends and relationships but were not useful for predicting growth due to the tremendous amount of variability in the growth of red spruce-fir stands. S3.