Site Index Estimates By Site Series For Coniferous Tree Species In British Columbia
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Site Index Estimates By Site Series For Coniferous Tree Species In British Columbia
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Author : British Columbia. Ministry of Forests
language : en
Publisher: British Columbia, Ministry of Forests
Release Date : 1997
Site Index Estimates By Site Series For Coniferous Tree Species In British Columbia written by British Columbia. Ministry of Forests and has been published by British Columbia, Ministry of Forests this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Technology & Engineering categories.
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.
Sibec Site Index Estimates In Support Of Forest Management In British Columbia
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Author : Shirley Mah
language : en
Publisher:
Release Date : 2003
Sibec Site Index Estimates In Support Of Forest Management In British Columbia written by Shirley Mah and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Nature categories.
In response to a request by the Chief Forester of British Columbia, this report evaluates the accuracy (lack of bias) of the Site Index by Biogeoclimatic Ecosystem Classification site series (SIBEC) estimates for use in supporting allowable annual cut determinations. Using data from the Old Growth Site Index project, investigators compared first approximation SIBEC estimates with site index estimates used in the forest inventory for old-growth stands. The precision of the SIBEC estimates is also discussed. The appendix contains additional information on the SIBEC model.
A Biophysical Model For Estimating Site Index For The Major Commercial Tree Species In British Columbia
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Author : Gordon Donald Nigh
language : en
Publisher:
Release Date : 2012
A Biophysical Model For Estimating Site Index For The Major Commercial Tree Species In British Columbia written by Gordon Donald Nigh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Nature categories.
A site index geographic information system (GIS) layer is being developed for British Columbia so that estimated site indices are available for the major commercial tree species across their ranges. The Site Index - Biogeoclimatic Ecosystem Classification (SIBEC)/predictive ecosystem map (PEM)/terrestrial ecosystem map (TEM) method will be used to populate the layer with site index by species. However, there will be gaps in the layer where there are no PEM/TEM or SIBEC data. The biophysical models resulting from this project will be used to fill these gaps. They predict, by species, site index from biogeoclimatic zone, slope, aspect, elevation, and climate variables. Data for these models come from the SIBEC project and various Site Index Adjustment projects. The climate variables are predicted from the ClimateWNA model. A biophysical model was fit separately for the following species: trembling aspen (Populus tremuloides), amabilis fir (Abies amabilis), subalpine fir (Abies lasiocarpa), western redcedar (Thuja plicata, coastal and interior), paper birch (Betula papyrifera), Douglas-fir (Pseudotsuga menziesii, coastal and interior), western hemlock (Tsuga heterophylla, coastal and interior), western larch (Larix occidentalis), lodgepole pine (Pinus contorta), ponderosa pine (Pinus ponderosa), black spruce (Picea mariana), Engelmann spruce (Picea engelmannii), Sitka spruce (Picea sitchensis), white spruce (Picea glauca), and interior spruce (white spruce, Engelmann spruce, or their cross). When compared to benchmark models, the biophysical models performed about as well as the benchmark except for the models for coastal western redcedar, coastal Douglas-fir, coastal western hemlock, Sitka spruce, and paper birch.
Site Index Curves And Tables For British Columbia
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Author : Kenneth J. Mitchell
language : fr
Publisher:
Release Date : 1988
Site Index Curves And Tables For British Columbia written by Kenneth J. Mitchell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Conifers categories.
Proceedings Rmrs
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Author :
language : en
Publisher:
Release Date : 1998
Proceedings Rmrs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Forests and forestry categories.
General Technical Report Pnw Gtr
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Author :
language : en
Publisher:
Release Date : 2006
General Technical Report Pnw Gtr written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Forests and forestry categories.
Site Index Curves And Tables For British Columbia Interior Species
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Author : Thrower, James S. (James Stuart)
language : en
Publisher:
Release Date : 1991
Site Index Curves And Tables For British Columbia Interior Species written by Thrower, James S. (James Stuart) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Conifers categories.
Site Index Equations And Curves For The Major Tree Species In British Columbia
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Author :
language : en
Publisher:
Release Date : 1981
Site Index Equations And Curves For The Major Tree Species In British Columbia written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Forest site quality categories.
British Columbia Government Publications Monthly Checklist
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Author : British Columbia. Legislative Library
language : en
Publisher:
Release Date : 1998
British Columbia Government Publications Monthly Checklist written by British Columbia. Legislative Library and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Government publications categories.
Western Redcedar Site Index Models For The Interior Of British Columbia
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Author : Gordon Donald Nigh
language : en
Publisher:
Release Date : 2000
Western Redcedar Site Index Models For The Interior Of British Columbia written by Gordon Donald Nigh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Technology & Engineering categories.
This paper develops models to predict top height, site index, and years to breast height for western redcedar, Thuja plicata, on interior British Columbia sites. Stem analysis & ecological data were collected from 46 plots in the interior cedar-hemlock and interior Douglas-fir biogeoclimatic zones. Four site trees were stem analyzed from each plot. These data were converted into top height-breast height age, growth intercept, years to breast height, and site index data. A site index, growth intercept, and years to breast height model were then fit to the data.