Download or read book A Variable Growth Intercept Model for Spruce in the Sub boreal Spruce and Engelmann Spruce subalpine Fir Biogeoclimatic Zones of British Columbia written by Gordon Donald Nigh and published by Government of British Columbia. This book was released on 1996 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper applies the variable growth intercept modelling technique to three species of interior spruce in the sub-boreal spruce and Engelmann spruce-subalpine fir biogeoclimatic zones in British Columbia: Picea engelmannii Parry, Picea glauca (Moench) Voss, and their cross. The variable growth intercept model allows foresters to estimate spruce site index from the first 1-30 years of height growth above breast height of a stand. Results presented from the analysis of the models includes parameter estimates, their standard error, the root mean square error, the W statistic for normality, the Fk statistic for homoscedasticity, and the degree of apparent bias in the model.
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 Juvenile Height Models for Lodgepole Pine and Interior Spruce written by Gordon Donald Nigh and published by University of British Columbia Press. This book was released on 2004 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Juvenile height models have been developed with data collected from a small area of British Columbia for lodgepole pine and interior spruce. The purpose of the project described in this report is to validate these models with data from six biogeoclimatic zones where lodgepole pine & interior spruce commonly occur. Trees were sampled from plots in each zone and annual height was measured directly from pith nodes. A rigorous validation procedure was applied to validate the models for the province as a whole and on a zonal basis. A slight bias revealed in the models led to refitting of new models to the new data. A small validation of the new model for lodgepole pine demonstrates whether it is adequate for use in the interior Douglas fir zone.
Download or read book Modeling Forest Trees and Stands written by Harold E. Burkhart and published by Springer Science & Business Media. This book was released on 2012-04-27 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drawing upon a wealth of past research and results, this book provides a comprehensive summary of state-of-the-art methods for empirical modeling of forest trees and stands. It opens by describing methods for quantifying individual trees, progresses to a thorough coverage of whole-stand, size-class and individual-tree approaches for modeling forest stand dynamics, growth and yield, moves on to methods for incorporating response to silvicultural treatments and wood quality characteristics in forest growth and yield models, and concludes with a discussion on evaluating and implementing growth and yield models. Ideal for use in graduate-level forestry courses, this book also provides ready access to a plethora of reference material for researchers working in growth and yield modeling.
Download or read book British Columbia Government Publications Monthly Checklist written by British Columbia. Legislative Library and published by . This book was released on 1998 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Forest Research written by and published by . This book was released on 2011 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Growth Intercept Model for Coastal Douglas fir written by Gordon Donald Nigh and published by University of British Columbia Press. This book was released on 1997 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Growth intercept models can compute site index (which measures the capacity of an area of land to grow trees of a given species) from early average height growth of trees. This guide describes a growth intercept model for coastal Douglas fir in British Columbia. The model was developed from a study of 48 analysis plots in which three trees in each plot were selected for intensive sampling, reconstruction of growth history, and calculation of site index and growth intercept. The resulting model consists of 50 functions. Four refinements to the growth intercept modelling technique are introduced, which improve the functional form of the model and improve the data collection and analysis procedures.
Download or read book Site Index Estimates by Site Series for Coniferous Tree Species in British Columbia written by British Columbia. Ministry of Forests and published by British Columbia, Ministry of Forests. This book was released on 1997 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Site index is a measure of forest site growth potential, and is important for forest management and timber supply analysis. This document presents a first approximation of estimates of average site index for coniferous crop tree species according to site units of the biogeoclimatic ecosystem classification (BEC) system of British Columbia. The estimates are displayed in site index/site unit tables. Information is included on site index, content and reliability of the tables, the method used to produce the tables, the relationship between site index and other site variables, had how to use the BEC method to estimate site index in the field.
Download or read book Proceedings written by and published by . This book was released on 2001 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book British Columbia s Inland Rainforest written by Susan Stevenson and published by UBC Press. This book was released on 2011-07 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: The vast temperate rainforests of coastal British Columbia are world renowned, but much less is known about the other rainforest located 500 kilometres inland along the western slopes of the interior mountains. The unique integration of continentality and humidity in this region favours the development of lush rainforest communities that incorporate both coastal and boreal elements. In British Columbia's Inland Rainforest, scientists bring together, for the first time, a broad spectrum of information about this distinctive ecosystem. They also consider the ecological consequences of human activities in the rainforest and present strategies for its management and conservation.
Download or read book Variable Growth Intercept Models for Lodgepole Pine in the Sub boreal Spruce Biogeoclimatic Zone British Columbia written by British Columbia. Ministry of Forests. Research Branch and published by Ministry of Forests, Research Branch. This book was released on 1995 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bark Beetle Management Ecology and Climate Change written by Kamal J.K. Gandhi and published by Academic Press. This book was released on 2021-10-28 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bark Beetle Management, Ecology, and Climate Change provides the most updated and comprehensive knowledge on the complex effects of global warming upon the economically and ecologically important bark beetle species and their host trees. This authoritative reference synthesizes information on how forest disturbances and environmental changes due to current and future climate changes alter the ecology and management of bark beetles in forested landscapes. Written by international experts on bark beetle ecology, this book covers topics ranging from changes in bark beetle distributions and addition of novel hosts due to climate change, interactions of insects with altered host physiology and disturbance regimes, ecosystem-level impacts of bark beetle outbreaks due to climate change, multi-trophic changes mediated via climate change, and management of bark beetles in altered forests and climate conditions. Bark Beetle Management, Ecology, and Climate Change is an important resource for entomologists, as well as forest health specialists, policy makers, and conservationists who are interested in multi-faceted impacts of climate change on forest insects at the organismal, population, and community-levels. - The only book that addresses the impacts of global warming on bark beetles with feedback loops to forest patterns and processes - Discusses altered disturbance regimes due to climate change with implications for bark beetles and associated organisms - Led by a team of editors whose expertise includes entomology, pathology, ecology, forestry, modeling, and tree physiology
Download or read book Canadian Journal of Botany written by and published by . This book was released on 2004-07 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Science written by and published by . This book was released on 2011 with total page 578 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 1999 with total page 592 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 Proceedings of the Society of American Foresters National Convention written by Society of American Foresters. Convention and published by . This book was released on 1991 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Common Plants of the Sub boreal Spruce Zone written by Jim Pojar and published by . This book was released on 1982 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
