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Fine Root Density Distribution And Biomass In Second And Third Growth Douglas Fir Stands On Vancouver Island British Columbia
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Book Synopsis Fine Root Density Distribution and Biomass in Second- and Third-growth Douglas-fir Stands on Vancouver Island, British Columbia by : A. Lalumière
Download or read book Fine Root Density Distribution and Biomass in Second- and Third-growth Douglas-fir Stands on Vancouver Island, British Columbia written by A. Lalumière and published by . This book was released on 2011 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Influence of Site Quality on Tree Resource Allocation to Fine Roots and Its Effect on Harvestable Productivity of Coastal Douglas-fir Stands by : Werner Alexander Kurz
Download or read book The Influence of Site Quality on Tree Resource Allocation to Fine Roots and Its Effect on Harvestable Productivity of Coastal Douglas-fir Stands written by Werner Alexander Kurz and published by . This book was released on 1987 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Study to establish the seasonal pattern of live fine root biomass in second-growth coastal Douglas-fir stands of five different site qualities, and to quantify annual fine root production in these stands. Root samples were collected on six sampling dates from May 1985 to May 1986 in five research sites on eastern Vancouver Island which cover a range of site indices from 25-41 m at breast-height age 50 years.
Book Synopsis Seasonal Patterns of Fine Root Biomass, Production and Turnover in Two Contrasting 40 Year-old Douglas-fir Stands by : Michael R. Keyes
Download or read book Seasonal Patterns of Fine Root Biomass, Production and Turnover in Two Contrasting 40 Year-old Douglas-fir Stands written by Michael R. Keyes and published by . This book was released on 1979 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Growth and Survival of Douglas-fir and Western Redcedar Planted at Different Densities and Species Mixtures by : Louise De Montigny
Download or read book Growth and Survival of Douglas-fir and Western Redcedar Planted at Different Densities and Species Mixtures written by Louise De Montigny and published by B.C. Ministry of Forests. This book was released on 2007 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Decisions about planting mixtures require an understanding of the survival and growth rates of the different species when grown together at different spacings; too many trees of either species may result in volume loss to overcrowding and mortality. The experiment described in this report examines the effects on growth and development of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) and western redcedar (Thuja plicata Donn ex D. Don in Lamb) after 14 years when grown at 500, 1000, or 2000 stems per hectare in Douglas-fir-western redcedar mixes of 1:0, 1:1, 1:3, and 0:1. Survival and height, diameter at breast height (dbh), volume, and crown growth were measured.--Document.
Book Synopsis Managed Stand Yield Tables for Coastal Douglas-fir by : Kenneth J. Mitchell
Download or read book Managed Stand Yield Tables for Coastal Douglas-fir written by Kenneth J. Mitchell and published by BC, Ministry of Forests. This book was released on 1985 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tables are presented for second growth stands of coastal Douglas-fir, some regenerated naturally and others planted at various densities. Separate tables describe the developments of stands thinned to 500 or 1110 stems when 6 metres tall.
Book Synopsis Effects of Nitrogen Fertilization on Fine Root and Mycorrhizal Biomass in a Second Growth Douglas-fir Stand in Western Washington by : Rachel Friedman-Thomas
Download or read book Effects of Nitrogen Fertilization on Fine Root and Mycorrhizal Biomass in a Second Growth Douglas-fir Stand in Western Washington written by Rachel Friedman-Thomas and published by . This book was released on 1986 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Information Forestry written by and published by . This book was released on 2011-12 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fine Root Morphology and Root Distribution of Douglas-fir, Spruce and Beech in Pure and Mixed Stands by : Pham Duc Cuong
Download or read book Fine Root Morphology and Root Distribution of Douglas-fir, Spruce and Beech in Pure and Mixed Stands written by Pham Duc Cuong and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seedling Cold and Drought Hardiness in Half-sib Families of Submaritime Douglas-fir by :
Download or read book Seedling Cold and Drought Hardiness in Half-sib Families of Submaritime Douglas-fir written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The submaritime zone of British Columbia experiences summer drought and spring and fall frosts which cause high mortality of seedlings planted for reforestation. Seedlings of half-sib Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) families were studied at 3 test sites in the coast mountains of British Columbia, and in a complementary pot trial on southern Vancouver Island from 2007-2008, with the aim of studying physiological traits related to cold and drought hardiness. These families originated from British Columbia's submaritime zone, and had a range of breeding values. This allowed for comparison of growth and stress resistance traits among progeny with expected differences in performance. In the field trial, spring and fall cold hardiness were assessed using chlorophyll fluorescence after controlled freezing. Growth and mortality data, shoot water potential and carbon isotope discrimination were recorded as measures of drought stress and water use efficiency. In the pot trial, a subset of families was grown under 3 drought levels to study drought hardiness characteristics. Growth, biomass allocation, date of vegetative bud burst, gas exchange, shoot water potential, and chlorophyll fluorescence were measured. Means comparisons between families, treatments and study sites were performed, narrow-sense heritabilities were calculated, and physiological traits were compared using correlation analyses. Family, field site and drought treatment had significant effects on many physiological parameters. Wild stand families tended to have greater field survival and fall cold hardiness than seed orchard families. Field height was negatively correlated with survival and spring cold hardiness. Shoot water potential and water use efficiency showed positive correlations with leader growth in the field. These data have relevance to the selection of families for the BC submaritime Douglas-fir tree breeding program. They can also help further our understanding of how growth a.
Book Synopsis Synopsis of Establishment Data for Douglas-fir Growth and Yield, and Root Rot Installations on Southern Vancouver Island, British Columbia by : Gordon William Wallis
Download or read book Synopsis of Establishment Data for Douglas-fir Growth and Yield, and Root Rot Installations on Southern Vancouver Island, British Columbia written by Gordon William Wallis and published by Canadian Forestry Service. This book was released on 1976 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Vertical Distribution and Biomass of Fine Roots in Three Subalpine Forest Plant Associations in Southwestern British Columbia by : Friedrich Carl Nuszdorfer
Download or read book Vertical Distribution and Biomass of Fine Roots in Three Subalpine Forest Plant Associations in Southwestern British Columbia written by Friedrich Carl Nuszdorfer and published by . This book was released on 1982 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thinning and Pruning of Second-growth Douglas Fir in the Coastal Region of British Columbia by : George Warrack
Download or read book Thinning and Pruning of Second-growth Douglas Fir in the Coastal Region of British Columbia written by George Warrack and published by . This book was released on 1948 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seedling Cold and Drought Hardiness in Half-sib Families of Submaritime Douglas-fir by : Nicole T. Darychuk
Download or read book Seedling Cold and Drought Hardiness in Half-sib Families of Submaritime Douglas-fir written by Nicole T. Darychuk and published by . This book was released on 2009 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The submaritime zone of British Columbia experiences summer drought and spring and fall frosts which cause high mortality of seedlings planted for reforestation. Seedlings of half-sib Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) families were studied at 3 test sites in the coast mountains of British Columbia, and in a complementary pot trial on southern Vancouver Island from 2007-2008, with the aim of studying physiological traits related to cold and drought hardiness. These families originated from British Columbia's submaritime zone, and had a range of breeding values. This allowed for comparison of growth and stress resistance traits among progeny with expected differences in performance. In the field trial, spring and fall cold hardiness were assessed using chlorophyll fluorescence after controlled freezing. Growth and mortality data, shoot water potential and carbon isotope discrimination were recorded as measures of drought stress and water use efficiency. In the pot trial, a subset of families was grown under 3 drought levels to study drought hardiness characteristics. Growth, biomass allocation, date of vegetative bud burst, gas exchange, shoot water potential, and chlorophyll fluorescence were measured. Means comparisons between families, treatments and study sites were performed, narrow-sense heritabilities were calculated, and physiological traits were compared using correlation analyses. Family, field site and drought treatment had significant effects on many physiological parameters. Wild stand families tended to have greater field survival and fall cold hardiness than seed orchard families. Field height was negatively correlated with survival and spring cold hardiness. Shoot water potential and water use efficiency showed positive correlations with leader growth in the field. These data have relevance to the selection of families for the BC submaritime Douglas-fir tree breeding program. They can also help further our understanding of how growth and stress resistance traits interact, and provide information on inherent genetic control of these traits.
Book Synopsis Seedling Cold and Drought Hardiness in Half-sib Families of Submaritime Douglas-fir by : Nicole T. Darychuk
Download or read book Seedling Cold and Drought Hardiness in Half-sib Families of Submaritime Douglas-fir written by Nicole T. Darychuk and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The submaritime zone of British Columbia experiences summer drought and spring and fall frosts which cause high mortality of seedlings planted for reforestation. Seedlings of half-sib Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) families were studied at 3 test sites in the coast mountains of British Columbia, and in a complementary pot trial on southern Vancouver Island from 2007-2008, with the aim of studying physiological traits related to cold and drought hardiness. These families originated from British Columbia's submaritime zone, and had a range of breeding values. This allowed for comparison of growth and stress resistance traits among progeny with expected differences in performance. In the field trial, spring and fall cold hardiness were assessed using chlorophyll fluorescence after controlled freezing. Growth and mortality data, shoot water potential and carbon isotope discrimination were recorded as measures of drought stress and water use efficiency. In the pot trial, a subset of families was grown under 3 drought levels to study drought hardiness characteristics. Growth, biomass allocation, date of vegetative bud burst, gas exchange, shoot water potential, and chlorophyll fluorescence were measured. Means comparisons between families, treatments and study sites were performed, narrow-sense heritabilities were calculated, and physiological traits were compared using correlation analyses. Family, field site and drought treatment had significant effects on many physiological parameters. Wild stand families tended to have greater field survival and fall cold hardiness than seed orchard families. Field height was negatively correlated with survival and spring cold hardiness. Shoot water potential and water use efficiency showed positive correlations with leader growth in the field. These data have relevance to the selection of families for the BC submaritime Douglas-fir tree breeding program. They can also help further our understanding of how growth and stress resistance traits interact, and provide information on inherent genetic control of these traits.
Book Synopsis Managing Ingrown Douglas-fir Stands for Biodiversity, Forage and Timber by : O. A. Steen
Download or read book Managing Ingrown Douglas-fir Stands for Biodiversity, Forage and Timber written by O. A. Steen and published by University of British Columbia Press. This book was released on 2008 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Farwell Canyon project was established to explore treatment options for enhancing undergrowth vegetation cover, forage production, and tree growth in densely ingrown Douglas-fir stands of the Interior Douglas-fir very dry mild (IDFxm) biogeoclimatic subzone. Fire scar and tree age analyses along with stand structure observations suggest that many of these ingrown stands were considerably more open before European settlement. Stem reduction treatments applied to two ingrown sites in 200 included logging only (L), logging plus juvenile thinning (LT), and logging plus thinning plus underburning (LTB). No-treatment (NT) areas were also established. The logging treatment was modified from standard practices to harvest small merchantable stems and to initiate thinning of juvenile stems. The objective of this report is to compare third- and fifth-year (2003 vs. 2006) vegetation composition, forage production, and tree regeneration responses to these treatments on one site. Douglas-fir regeneration density increased in all treatments between 2003 and 2006. Cover of grasses increased substantially, due primarily to increased cover of pinegrass (Calamagrostis rubescens). The number of plots with bunchgrasses increased even though mean cover of bunchgrasses did not increase significantly. Shrub and forb cover remained generally low on all treatments. Biomass of combined forbs and graminoids increased significantly from 2003 to 2006 but did not differ significantly among treatments. These early results suggest that the logging treatment, with or without additional treatments, is leading to increased vascular plant cover and forage production. Tree regeneration density is still relatively low. The thinning and underburning treatments have reduced the fire hazard and prepared the stand for follow-up treatments to maintain a more open stand structure. The stand treatments applied in this study should be combined with other treatments to create various stand structures across the IDFxm landscape,corresponding to historic variability of disturbances within the IDFxm subzone.
Author :Douglas M. Bennett Publisher :Pointe Claire, Québec : Forest Engineering Research Institute of Canada = Institut canadien de recherches en génie forestier ISBN 13 : Total Pages :12 pages Book Rating :4.:/5 (39 download)
Book Synopsis Partial cutting in a second-growth douglas-fir stand in coastal British Columbia by : Douglas M. Bennett
Download or read book Partial cutting in a second-growth douglas-fir stand in coastal British Columbia written by Douglas M. Bennett and published by Pointe Claire, Québec : Forest Engineering Research Institute of Canada = Institut canadien de recherches en génie forestier. This book was released on 1993 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of a partial-cutting trial in a second-growth Douglas-fir stand on Quadra Island, BC. FERIC monitored the harvesting operation to determine the productivities, costs, and operational feasibility of using a ground-based, multiple-entry harvesting method in a second-growth Douglas-fir stand. FERIC also examined the condition of the residual stand, and the type and nature of soil disturbance and compaction created by harvesting.
Book Synopsis Successive Thinnings in a Natural Stand of Douglas Fir Over a Fifty Year Period by : George C. Warrack
Download or read book Successive Thinnings in a Natural Stand of Douglas Fir Over a Fifty Year Period written by George C. Warrack and published by . This book was released on 1979 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a comparison of the development of a natural with a managed second-growth stand of douglas fir and the process neccessary for a thing program.
