Download or read book White Spruce Picea Glauca Regeneration in Forests Disturbed by Spruce Beetle Dendroctonus Rufipennis in the Anchor River Watershed Alaska written by Keith Boggs and published by . This book was released on 2006 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regeneration of White Spruce with Reference to Interior Alaska written by John C. Zasada and published by . This book was released on 1969 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for Obtaining Natural Regeneration of White Spruce in Alaska written by John C. Zasada and published by . This book was released on 1972 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gives basic requirements for natural regeneration of white spruce. Also methods for creating conditions to meet these requirements. Based on research on western white spruce forests of Canada.
Download or read book Guidelines for obtaining natural regeneration of white spruce in Alaska written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1972 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spruce Reproduction Dynamics on Alaska s Kenai Peninsula 1987 2000 written by Willem W. S. van Hees and published by . This book was released on 2005 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Managing White and Lutz Spruce Stands in South central Alaska for Increased Resistance to Spruce Beetle written by John S. Hard and published by . This book was released on 1985 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Soil and Vegetation on Growth of Planted White Spruce written by Donald A. Perala and published by . This book was released on 1987 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silvical Characteristics of White Spruce Picea Glauca written by Hans Nienstaedt and published by . This book was released on 1957 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synopsis of Information on White Engelmann and Black Spruce Natural Regeneration in North America written by Everett B. Peterson and published by . This book was released on 1994 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report providing a subjective assessment of the scope, applicability, and overall reliability of existing published references related to natural regeneration of white, Engelmann, and black spruce in North America and a synopsis of references on the subject. The references are listed alphabetically by author for each of 563 references, based on a dBASE IV database coded according to 105 keywords. The database allows the user to search geographically, by species of spruce, by forest section within Canada, or by any of the keywords listed. The emphasis is on white spruce in a boreal mixedwood setting but also includes information on natural regeneration of Engelmann spruce and upland black spruce, plus a limited amount of Norway spruce. Most of the references are from the 1990s.
Download or read book The 30 year Outcome of Assisted Regeneration Treatments in a Burned and Salvaged Interior Alaska Boreal Forest written by Andrew Allaby and published by . This book was released on 2015 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study contributes to the understanding of the persistence of silvicultural treatments into the stem exclusion stage of forest development in an experiment originally designed to test the effectiveness of various white spruce (Picea glauca Moench [Voss]) regeneration practices. Many studies in the North American boreal forest address the effect of silvicultural treatments on a single tree species, specifically white spruce in the great majority of cases. The experiment measured in this study provided an excellent opportunity to compare treatment effects on white spruce density and growth. The Rosie Creek Fire Tree Regeneration Installation experiment represents an operational-scale, spatially-explicit, replicated design on a single site disturbed consecutively by high-severity wildfire and clearcut salvage harvest. Three hierarchical factors, each with multiple levels, were examined: landform type, ground scarification methods, and white spruce regeneration methods. All three of the experimental factors exercised continuing influence on the patterns of white spruce regeneration and growth. The treatment effects did not attenuate over time for white spruce, and we found statistically significant effects that the original researchers could only describe as tendencies. However, relatively few studies address treatment impacts on non-target species or determine how the silvicultural treatments affect a site's overall woody biomass production. Experimental silvicultural practices targeted in this study to improve white spruce survival had profound effects on other dominant upland tree species such as quaking aspen (Populus tremuloides Michx.) and Alaska birch (Betula neoalaskana Sarg.). Interior Alaska timber species demonstrate different regeneration strategies to post-disturbance environmental conditions, especially residual organic soil layer thickness and spatial configuration of surviving potential seed sources. Effective silvicultural practices must consider each species' unique reproductive biology, and clonal sprouting as a source of aspen persistence was a particularly important example in our study. Site differences, such as we found between the slope and ridge landforms, are a key consideration for implementing effective silvicultural practices. Significant interactions between the regeneration treatments and landform types proved to be critical to meet specific reforestation objectives, particularly the different herbaceous vegetation cover types, presence/absence of aspen clonal rootstocks, and spatial configurations regarding seed sources. Managing mixed species stands, which are common in the lightly managed portions of the boreal forest, requires not only the consideration of the future crop tree, but the interacting effects of silvicultural practices on all tree species.
Download or read book Regeneration of White Spruce with Reference to Interior Alaska written by John C. Zasada and published by . This book was released on 1969 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inheritance of budbreak and correlation with early height growth in white spruce Picea glauca from New England written by Ronald C. Wilkinson and published by . This book was released on 1977 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Make Way for Seedlings written by Rhonda Mazza and published by . This book was released on 2012 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alaska's boreal forest have experienced unprecedented levels of disturbance. Fire is becoming more frequent and burning larger areas compared to the 1960s and 1970s. In the mid 1990s, insect outbreaks reached epidemic proportions. During the same period, timber harvesting increased to meet demand for logs no longer coming from the Pacific Northwest forest. Alaska white spruce was particularlyaffected by these disturbances, bringing into question the ability of the species to naturally regenerate and reestablish the stands. Andrew Youngblood, a research forester with the Pacifc Northwest Research Station, and his colleagues at Oregon State University have been studying Alaska white spruce for nearly two decades. For their latest study, they established five study sites across Alaska to learn what could be done to facilitate white spruce seedling regeneration. Eleven years later, they found the type of site preparation and seedling stock type led to dramatic differences in white spruce seedling survival, height, and volume. Site preparation also influenced the composition and structure of competing vegetation. They found that areas that are not reforested immediately can be succesfully restored to productive white spruce forests through a combination of vegetation control and use of quality planting stock.
Download or read book Three Factors Impacting Natural Regeneration of White Spruce Picea Glauca on Disturbed Sites written by and published by . This book was released on 2017 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Quickly establishing vegetation and achieving reclamation certification are shared objectives of oil and gas industry operators. While tree planting is clearly advantageous in the predictability of regeneration, natural regeneration is still widely relied on as a reclamation approach. If natural regeneration is to be used as a reclamation prescription, it should be carefully planned and managed purposefully rather than relying on the assumption that nature will take care of itself"--Page [1].
Download or read book Developing Silvicultural Alternatives for the Boreal Forest written by University of Alberta. Forestry Program and published by Faculty of Agriculture & Forestry, University of Alberta. This book was released on 1990 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paper describing research conducted in Alaska over a 20-year period regarding the regeneration of white spruce (Picea glauca) and the development and testing of alternatives for natural and artificial regeneration.
Download or read book The Regeneration of White Spruce in Interior Alaska written by John C. Zasada and published by . This book was released on 1969 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Natural Regeneration of White Spruce Under Spruce aspen Shelterwood B 18a Forest Section Alberta written by J. C. Lees and published by ottawa : queen's printer. This book was released on 1970 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
