Download or read book Site Preparation for Establishing Lodgepole Pine on Backlog Sites in the Sub boreal Spruce Zone written by British Columbia. Forest Site Management Section and published by . This book was released on 2001 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Site Preparation for Establishing Lodgepole Pine on Backlog Sites in the Sub boreal Spruce Zone written by Macadam, A. (Anne) and published by Silviculture Practices Section. This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book General Technical Report PNW GTR written by and published by . This book was released on 2005 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Productivity of Western Forests written by and published by . This book was released on 2005 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: In August 20-23, 2004, a conference was held in Kamilche, WA, with the title S2Productivity of Western Forests: A Forest Products Focus. S3 The meeting brought together researchers and practitioners interested in discussing the economic and biological factors influencing wood production and value. One of the underlying assumptions of the meeting organizers was that management activities would be practiced within a framework of sustaining or improving site productivity; thus, several papers deal with methods to protect or improve productivity or discuss new studies designed to test the effects of various practices. This proceedings includes 11 papers based on oral presentations at the conference, 3 papers based on posters and 2 papers describing the Fall River and Matlock Long-Term Site Productivity study areas visited on the field tours. The papers cover subjects on forest harvesting activities, stand establishment, silviculture, site productivity, remote sensing, and wood product technologies.

Download or read book Lodgepole Pine Responses to Mechanical Site Preparation and Burning in Sub boreal British Columbia written by John McClarnon and published by . This book was released on 2016 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1988, three studies were established as part of Experimental Project 995 to study lodgepole pine (Pinus contorta var. latifolia) survival and growth responses to site preparation in the Sub-Boreal Spruce zone of north-central British Columbia. The project examines the effectiveness of several mechanical treatments and localized high-intensity burning, with a focus on disc trenching, which is the most commonly used mechanical site preparation technique in this region. The importance of disc trench orientation, planting aspect, and planting position were investigated, as well as potential interactions between broadcast burning and disc trenching. This report presents 25-year results for the Bednesti North and Bednesti South experiments, and 19-year results for the Tanli experiment. Treatment effects are discussed in relation to: lodgepole pine establishment (survival and early growth to age 5); performance at approximately free-growing age (9 years); and early mid-term growth, stand volume, and site index (as measured at age 25). Of the mechanical treatments tested, coarse mixing was the most effective, resulting in approximately 1-m gains in lodgepole pine height over the control at age 25. This treatment is not practical from an operational perspective, however, and the more common technique of disc trenching with trees planted at the hinge produced the second greatest gains. In contrast, pine planted in trench furrows showed a trend of reduced growth relative to the control. Trench orientation was relatively unimportant, but there was a slight advantage to avoiding north-aspect planting positions. Although broadcast burning alone did not have a significant effect on pine growth, it consistently interacted with disc trenching to produce a mild magnification of responses to that treatment. Pine planted in long, narrow, intensely burned windrow strips were consistently larger than control pine throughout the 25-year assessment period, but they had poor form due to being essentially open-grown.

Download or read book Information Report written by and published by . This book was released on 1985 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Long term Results from EP841 written by Teresa A. Newsome and published by . This book was released on 2016 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Condition Growth and Projected Yield of Lodgepole Pine and Interior Spruce 20 Years After Rehabilitation of an Understocked Site in North central British Columbia written by Roger J. Whitehead and published by . This book was released on 2011 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Stony Lake trial was established in 1987 to benchmark growth performance of interior spruce and lodgepole pine planted into 12 treatment regimes for rehabilitating an understocked sub-boreal spruce site. All combinations of three options for primary site clearing treatments (burn, spray and burn, or windrow), two options for secondary site preparation treatments (disc-trenching or no disc-trenching), and two options for tertiary weeding treatments (broadcast application of herbicide three years after planting or no treatment) were tested. The objectives of this report were to 1) document the status of interior spruce and lodgepole pine trees planted into the 12 treatment regimes at the Stony Lake long-term research trial and 2) use these early growth data to customize Tree and Stand Simulator (TASS) runs to project potential impact on yield and expected value at rotation.--Includes text from document.

Download or read book FRDA Research Memo written by and published by . This book was released on 1987 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Use of Site Factors to Predict Lodgepole Pine and Interior Spruce Site Index in the Sub boreal Spruce Zone written by and published by . This book was released on 1994 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Site index is the measure of a given tree species' productivity. Relationships between site index & ecological site quality have been the focus of recent research efforts in British Columbia that have used categorical measures of ecological site quality to explain the variation in site index of major tree species. This report describes a study that expands these efforts to lodgepole pine & interior spruce. To establish a link between ecological site quality & forest productivity in the sub-boreal spruce zone of the Prince Rupert Forest Region, site index & site data were obtained from 93 lodgepole pine stands and 77 interior spruce stands distributed across two climatic regimes, eight soil moisture regimes, and five soil nutrient regimes. These regimes were used as categorical variables to stratify the stands and in the subsequent regression analysis of the data. Six types of regression models were developed and one model, which showed strong relationships between site index & some ecological parameters, was used to draft site index isolines which were then superimposed onto edatopic grids. The results test the capability of estimates of soil moisture & soil nutrient regimes as predictors of pine & spruce site index.

Download or read book Canadian Journal of Forest Research written by and published by . This book was released on 2006 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Site Index Model for Lodgepole Pine in the Sub boreal Spruce Biogeoclimatic Zone of British Columbia written by Adrian Emerson Batho and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An interior lodgepole pine stand level height growth and site index model is developed using stochastic differential equations and state-space approaches. Two data types, stem analysis and permanent sample plots were used. Four formulations of the Bertalanffy/Richards growth equation were evaluated using the EasySDE program. Data was partitioned based on data type, stand origin and combinations thereof. The best model was identified using maximum likelihood, and differences among data types and stand origins were evaluated for using likelihood ratio tests. A Power formulation was found to be statistically superior for all data types and origins. Combining the Stem Analysis and Permanent Sample Plot data in such a way that their respective variance structures was accommodated in parameter estimation was significantly better than the individual and origin specific runs, even though this increased the number of parameters. The resultant model was compared to the existing provincial model and differences were observed. --P. ii.

Download or read book Factors Influencing the Choice Between Natural Regeneration and Planting of Lodgepole Pine in the Sub boreal Pine spruce Zone written by Erin Victoria Moore and published by . This book was released on 2000 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology Abstracts written by and published by . This book was released on 2000 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coverage: 1982- current; updated: monthly. This database covers current ecology research across a wide range of disciplines, reflecting recent advances in light of growing evidence regarding global environmental change and destruction. Major ares of subject coverage include: Algae/lichens, Animals, Annelids, Aquatic ecosystems, Arachnids, Arid zones, Birds, Brackish water, Bryophytes/pteridophytes, Coastal ecosystems, Conifers, Conservation, Control, Crustaceans, Ecosyst em studies, Fungi, Grasses, Grasslands, High altitude environments, Human ecology, Insects, Legumes, Mammals, Management, Microorganisms, Molluscs, Nematodes, Paleo-ecology, Plants, Pollution studies, Reptiles, River basins, Soil, TAiga/tundra, Terrestrial ecosystems, Vertebrates, Wetlands, Woodlands.

Download or read book FRDA Report written by and published by . This book was released on 1993 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Mountain Pine Beetle written by Pacific Forestry Centre and published by . This book was released on 2006 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book presents a synthesis of published information on mountain pine beetle (Dendroctonus ponderosae Hopkins [Coleoptera: Scolytidae]) biology and management with an emphasis on lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia Engelm.) forests of western Canada. Intended as a reference for researchers as well as forest managers, the book covers three main subject areas: mountain pine beetle biology, management, and socioeconomic concerns. The chapters on biology cover taxonomy, life history and habits, distribution, insect-host tree interactions, development and survival, epidemiology, and outbreak history. The management section covers management strategy, survey and detection, proactive and preventive management, and decision support tools. The chapters on socioeconomic aspects include an economic examination of management programs and the utilization of post-beetle salvage timber in solid wood, panelboard, pulp and paper products."--Publisher's description.

Download or read book Climate Applications in Forest Renewal and Forest Production written by Canadian Forestry Service and published by Service Canadien des forêts. This book was released on 1989 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a symposium/workshop on the importance of climatic impacts and applications in operational forest management problems. Coverage included climate and forest renewal, involving seed and stock production and forest regeneration; climate and forest production, involving forest growth and development and forest utilization and economics; and hi-tech applications in operational forest climate management, involving demonstrations of various models.