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EBookClubs

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Book Thinning Strategies for Aspen

Download or read book Thinning Strategies for Aspen written by Donald A. Perala and published by . This book was released on 1978 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Development and Maintenance of Aspen Populus Tremuloides Michx and P Grandidentata Michx in Old Fields in Central New York

Download or read book Development and Maintenance of Aspen Populus Tremuloides Michx and P Grandidentata Michx in Old Fields in Central New York written by Elizabeth Anne Johnson and published by . This book was released on 1979 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Evaluating Trembling Aspen Populus Tremuloides Michx Seedling Stock Characteristics in Response to Drought and Out planting on a Reclamation Site

Download or read book Evaluating Trembling Aspen Populus Tremuloides Michx Seedling Stock Characteristics in Response to Drought and Out planting on a Reclamation Site written by Shaun Peter Kulbaba and published by . This book was released on 2014 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trembling aspen (Populus tremuloides Michx.) seedlings often display reduced growth, or transplant shock, following out-planting largely due to moisture constraints. This thesis explores the influence of seedling size (root volume), root to stem ratio (RSR) and non-structural carbohydrate (NSC) reserves on the growth performance and physiological status of aspen seedlings under varying levels of drought stress in a controlled growth chamber and following out-planting on a reclamation site. These characteristics have been found to improve out-planting success in aspen and may also increase drought tolerance. In the growth chamber study, stem growth and foliar development was reduced under drought, but the degree growth decreased was greatly influenced by initial seedling characteristics. Small seedlings with high RSR displayed the greatest stem growth and leaf area under drought stress, while large seedlings with low RSR had the poorest shoot growth. Similarly, high initial RSR resulted in the greatest above-ground growth performance in seedlings after out-planting. Root growth was sensitive to environmental factors in the growth chamber and on the reclamation site, but was not influenced by initial characteristics.

Book Response of Aspen Root Suckers to Regeneration Methods and Post harvest Protection

Download or read book Response of Aspen Root Suckers to Regeneration Methods and Post harvest Protection written by Wayne D. Shepperd and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Sixty Years of Change in Tree Numbers and Basal Area in Central Utah Aspen Stands

Download or read book Sixty Years of Change in Tree Numbers and Basal Area in Central Utah Aspen Stands written by W. F. Mueggler and published by . This book was released on 1994 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effect of Thinning on Height and Diameter Growth of Oak Yellow poplar Saplings

Download or read book Effect of Thinning on Height and Diameter Growth of Oak Yellow poplar Saplings written by Rufus H. Allen and published by . This book was released on 1970 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effects of Variable Aspen Retention on Stand Development Aspen Sucker Production and Growth of Lodgepole Pine in the SBSdw1 Variant of South central British Columbia

Download or read book Effects of Variable Aspen Retention on Stand Development Aspen Sucker Production and Growth of Lodgepole Pine in the SBSdw1 Variant of South central British Columbia written by Teresa A. Newsome and published by . This book was released on 2006 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mixtures of trembling aspen (Populus tremuloides Michx.) and naturally regenerated or planted lodgepole pine (Pinus contorta var. latifolia Engelm. ex S. Wats.) occur throughout interior British Columbia. To develop effective management strategies for mixed stands where softwood timber production is the primary objective, silviculturists need information about levels of broadleaves that can be retained without seriously reducing conifer performance. They also require practical guidance on using this information to develop cost-effective treatment prescriptions. To address this topic in the Cariboo-Chilcotin, a pine-aspen competition project that includes studies in a variety of ecosystems is currently under way. In 1999, an operational trial to study the effects of variable aspen retention on stand-level lodgepole pine performance and aspen sucker production was established near McKinley Lake in the SBSdw1 variant of the Central Cariboo Forest District. The study was a co-operative undertaking by the B.C. Ministry of Forests and Weldwood of Canada, Ltd. In 2002, the study was adopted by the Silvicultural Systems Research Group of the Southern Interior Forest Region as part of the pine-aspen competition project, and objectives and methods were subsequently adapted to include the collection of long-term growth and yield and stand development data. This report summarizes fourth-year pine and aspen responses to aspen retention treatments, and provides baseline stand development information.

Book Early Effects of Manipulating Aspen Density and Special Arrangement on Lodgepole Pine Performance Aspen Sucker Production and Stand Development in an 11 year Old Stand in the SBPSxc Subzone of South central British Columbia

Download or read book Early Effects of Manipulating Aspen Density and Special Arrangement on Lodgepole Pine Performance Aspen Sucker Production and Stand Development in an 11 year Old Stand in the SBPSxc Subzone of South central British Columbia written by Teresa A. Newsome and published by . This book was released on 2006 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mixtures of trembling aspen (Populus tremuloides Michx.) and lodgepole pine (Pinus contorta var. latifolia Engelm.) regenerate naturally throughout the Sub-Boreal Pine-Spruce (SBPS), Interior Douglas-fir (IDF), Sub-Boreal Spruce (SBS), and Interior Cedar-Hemlock (ICH) zones in the Cariboo-Chilcotin area of the Southern Interior Forest Region. Due to the rapid height growth and high initial sucker densities of young aspen, these stands generally require some management at the juvenile stage to meet conifer growth objectives. Strategies designed to lessen competition from young aspen have become more complex over the past decade. In light of current understanding of the importance of broadleaf tree species to overall ecosystem health, successful management of young pine-aspen stands now requires practitioners to find a balance between removing aspen to meet lodgepole pine growth objectives and retaining as much aspen as possible to preserve the ecosystem benefits conferred by broadleaf species, reduce suckering, and reduce silviculture treatment costs. The Clusko aspen removal study, established in 2001 in an 11-year-old lodgepole pine-trembling aspen stand in the SBPSxc subzone, investigates the effects of five levels of aspen removal on target pine, neighbourhood competitive interactions, and stand development. Treatments include: (1) an untreated control; (2) complete aspen removal; broadcast retention of (3) 1000 and (4) 2500 aspen stems ha-1; and (5) a spatial treatment that removed aspen within a 1-m radius around target pine. This report presents second-year results from the Clusko River (Clusko) study.

Book Ten year Results of Thinning 14 19 and 23 year old Aspen to Different Spacings

Download or read book Ten year Results of Thinning 14 19 and 23 year old Aspen to Different Spacings written by G. A. Steneker and published by ottawa : queen's printer. This book was released on 1964 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: