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Effects Of Intensive Fertilization On The Foliar Nutrition And Growth Of Young Lodgepole Pine And Spruce Forests In The Interior Of British Columbia Ep 88613
Download Effects Of Intensive Fertilization On The Foliar Nutrition And Growth Of Young Lodgepole Pine And Spruce Forests In The Interior Of British Columbia Ep 88613 full books in PDF, epub, and Kindle. Read online Effects Of Intensive Fertilization On The Foliar Nutrition And Growth Of Young Lodgepole Pine And Spruce Forests In The Interior Of British Columbia Ep 88613 ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Download or read book Sierra Stories written by Gary Noy and published by Heyday Books. This book was released on 2014 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stories of characters who enlivened the SIERRA NEVADA and created the basis of many legends and tales. Features names and places of the formidable high country and lands adjoining
Book Synopsis Effects of Fertilization on the Growth and Foliar Nutrition of Immature Douglas-fir in the Interior Cedar-hemlock Zone of British Columbia by : Robert Peter Brockley
Download or read book Effects of Fertilization on the Growth and Foliar Nutrition of Immature Douglas-fir in the Interior Cedar-hemlock Zone of British Columbia written by Robert Peter Brockley and published by University of British Columbia Press. This book was released on 2006 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The effects of fertilization with nitrogen (N) alone, and in combination with sulphur (S), on the growth and foliar nutrition of six immature, managed Douglas-fir (Pseudotsuga menziesii var. glauca [Beissn.] Franco) stands in the Interior Cedar-Hemlock (ICH) biogeoclimatic zone of British Columbia are reported 6 years after treatment. Results indicate that interior Douglas-fir stands growing on circummesic sites within the ICH zone are generally responsive to fertilization. Disregarding results from one installation that was damaged by Armillaria root disease, average net volume response following fertilization with N alone was 13.5 m3/ha (range: 6.5-24 m3/ha) compared to the control treatment. Six-year volume gains from N+S additions averaged 16 m3/ha (range: 10-23 m3/ha). In relative terms, stand volume responses to fertilization with N and N+S averaged 24% (range: 8-41%) and 28% (range: 16-39%), respectively. Growth projections generated by the tipsy growth and yield program indicate that the accelerated stand development following a single fertilizer application will likely reduce biological rotations (i.e., culmination of mean annual increment) and technical rotations (e.g., minimum harvestable age) by 2-3 years. Relative growth responses compare favourably with results from Douglas-fir fertilization studies in other jurisdictions.??Pre- and post-fertilization foliar nutrient analyses indicate that several of the sites were marginally S deficient, and that S status deteriorated 1 year following N fertilization. Added S was readily taken up, thereby maintaining a favourable N:S balance in trees fertilized with N+S. Despite improvements in foliar S status, the incremental growth benefits of added S may be too small on most sites to justify the extra expense involved in blending and applying N+S fertilizers in large-scale aerial operations.??Results from this study, and others, indicate that pre-fertilization levels of foliar N and sulphate S (SO4) may have utility in selecting candidate stands and in making appropriate fertilizer prescriptions. For example, the largest growth responses following fertilization may be expected in stands with pre-fertilization foliar N levels less than 11.5 g/kg ( 13 g/kg when using dry combustion analytical methods). Also, low foliar N combined with small amounts of pre-fertilization foliar SO4 (
Book Synopsis Twenty-year Interior Spruce Tree Growth and Nutrient Levels on Calcareous Soils in Southeastern British Columbia by : Douglas George Maynard
Download or read book Twenty-year Interior Spruce Tree Growth and Nutrient Levels on Calcareous Soils in Southeastern British Columbia written by Douglas George Maynard and published by . This book was released on 2009 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The general objective of this study was to determine if calcium carbonate was a limiting factor in the growth of 20-year old interior spruce. The specific objectives were: to describe the soil conditions for the acidic (eka) and calcareous (ekc) soil groupings for the progeny test sites studied by Xie et al. (1998); to determine the relationship of 20-year-old interior spruce growth with depth to carbonates at two calcareous sites within the former Invermere Forest District; to determine the relationship of soil and foliar chemistry to interior spruce growth at the two calcareous sites; and to compare the foliage chemistry of interior spruce growing on calcareous soils to interior spruce growing on a non-calcareous soil.--Document.
Book Synopsis Effects of Bladed Skid Roads on Soil Properties and Early Tree Growth on Two Steep Slopes in the Southern Interior of British Columbia by : Graeme d'Egville Hope
Download or read book Effects of Bladed Skid Roads on Soil Properties and Early Tree Growth on Two Steep Slopes in the Southern Interior of British Columbia written by Graeme d'Egville Hope and published by . This book was released on 2001 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Brushing and Grazing Effects on Lodgepole Pine, Vascular Plants and Range Forage in Three Plant Communities in the Southern Interior of British Columbia by : Suzanne Simard
Download or read book Brushing and Grazing Effects on Lodgepole Pine, Vascular Plants and Range Forage in Three Plant Communities in the Southern Interior of British Columbia written by Suzanne Simard and published by University of British Columbia Press. This book was released on 1998 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of research trials established in 1986-87 in the Kamloops Forest Region, British Columbia, studied the effectiveness of chemical and manual treatment methods for controlling competing vegetation, and also studied the impact that these brushing methods had on the range resource in the region. This report first describes the study methodology, including site selection, experimental design, measurements made, and statistical analyses. It then reports the results of the three studies in the series: the effects of brushing and grazing on lodgepole pine, the dry alder plant community, and range forage at the Devick Lake site; effects of brushing and grazing on lodgepole pine, the willow plant community, and range forage at the Ellis Creek site; and effects of brushing on lodgepole pine, the pinegrass plant community, and range forage at the Upper McKay Creek site.
Author :Canada. Department of Forestry and Rural Development Publisher :ottawa : queen's printer ISBN 13 : Total Pages :202 pages Book Rating :4.E/5 ( download)
Book Synopsis A Review of Forest Fertilization in Canada by : Canada. Department of Forestry and Rural Development
Download or read book A Review of Forest Fertilization in Canada written by Canada. Department of Forestry and Rural Development and published by ottawa : queen's printer. This book was released on 1967 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Louise De Montigny Publisher :Forestry Division Services Branch, Production Resources ISBN 13 :9780772635068 Total Pages :57 pages Book Rating :4.6/5 (35 download)
Book Synopsis Effects of Thinning and Fertilizing Mixed Western Hemlock-Sitka Spruce Stands by : Louise De Montigny
Download or read book Effects of Thinning and Fertilizing Mixed Western Hemlock-Sitka Spruce Stands written by Louise De Montigny and published by Forestry Division Services Branch, Production Resources. This book was released on 1998 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Germination and Fertilization Regime Effects on the Growth of Container White Spruce Seedlings at Red Rock Research Station by : British Columbia. Ministry of Forests
Download or read book Germination and Fertilization Regime Effects on the Growth of Container White Spruce Seedlings at Red Rock Research Station written by British Columbia. Ministry of Forests and published by . This book was released on 1989 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Relative Impact of Aspen Competition and Soil Factors on the Performance of Lodgepole Pine and Hybrid White Spruce in North-central British Columbia by : C. DeLong
Download or read book Relative Impact of Aspen Competition and Soil Factors on the Performance of Lodgepole Pine and Hybrid White Spruce in North-central British Columbia written by C. DeLong and published by . This book was released on 2007 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Releasing conifers from the competition effects of aspen (Populus tremuloides Michx.) is a key focus of plantation management in sub-boreal and boreal forests, often at considerable cost. However, other factors affect early plantation performance. This study investigates the relative influence of aspen competition and soil factors on the performance of planted lodgepole pine (Pinus contorta Dougl. ex Loud.) and hybrid white spruce (Picea glauca [Moench] Voss x engelmannii Parry ex Engelm.) in north-central British Columbia. Plots were established across a gradient of natural aspen competition levels that resulted from a test of aspen control treatments at one site. Within these plots, 240 of each of the target conifer species were measured and their immediate soil and vegetative environment quantified. Regression trees and regression analysis were used to examine the importance of aspen competition relative to other factors in determining target conifer size."--Document.
Book Synopsis Evaluating Forest Stand Nutrient Status by : Timothy M. Ballard
Download or read book Evaluating Forest Stand Nutrient Status written by Timothy M. Ballard and published by University of Washington Press. This book was released on 1986 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections deal with the preliminary assessment of nutrient status, the sampling and analysis of soil and forage for nutrient status evaluation inconiferous stands in B.C., and with computerized diagnostic procedures.
Book Synopsis Ecology and Management of Sitka Spruce by : N. Merle Peterson
Download or read book Ecology and Management of Sitka Spruce written by N. Merle Peterson and published by UBC Press. This book was released on 2011-11-01 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sitka spruce, the largest of the world's spruces, is an important component of British Columbia's coastal forests. Its ecology gives it a special place in the sustainable management of the province's forests. However, in west coast forestry it is poorly known in comparison with its main coniferous companions -- Douglas-fir, western redcedar, and western hemlock. As an important international forestry resource, it is crucial that Sitka spruce -- its ecology and the ecosystems in which it occurs -- be clearly understood by those who are involved with its management.
Book Synopsis Impacts of Skidroads on Properties of a Calcareous, Loamy Soil and on Planted Seedling Performance by : Richard Barrie Smith
Download or read book Impacts of Skidroads on Properties of a Calcareous, Loamy Soil and on Planted Seedling Performance written by Richard Barrie Smith and published by . This book was released on 1994 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: A plantation consisting of three plots with 160 seedlings each of Douglas-fir (Pseudotsuga menziesii) and lodgepole pine (Pinus contorta var. latifolia) was established in a cutover north of Golden, British Columbia, in the Interior Cedar-Hemlock biogeoclimatic zone. To determine the impact of contour-built skidroads on survival and subsequent growth of planted seedlings, plots straddled selected segments of the skidroads. Seedlings were planted in four disturbance categories on the skidroads and in undisturbed soil above and below the skidroads. Soil characteristics were measured initially on the skidroads and in the undisturbed soil adjacent to the skidroads and tree growth was monitored for eight growing seasons after planting. Foliage was sampled for nutrient content at the end of the fifth year.?The greatest adverse impacts on the soil were found in the inner track, i.e., the portion of the skidroads lying next to the cutbank. Here, the top 20 cm of mineral soil was on average 52% denser and 62% more resistant to penetration than the equivalent depth of undisturbed mineral soil. Soils in the outer track were also seriously degraded whereas the soils in the berm were not markedly different from the undisturbed situation in terms of density and penetrability. Disturbance exposed subsoil with inherently higher levels of free carbonates and a pH range of 6.3-7.0 compared with an average of 5.3 for the upper portion of undisturbed soil. ?Survival of Douglas-fir seedlings was significantly greater on the skidroad surface than on sidecast or undisturbed soil. However, growth of both Douglas-fir and lodgepole pine was reduced on skidroads, particularly in the inner track; reductions 5 years after planting amounted to 33% in height and 53% in volume for Douglas-fir and 32% and 48%, respectively, for lodgepole pine. After 8 years reductions were generally less, amounting to 25% in height and 38% in volume for Douglas-fir and 26% and 49%, respectively, for lodgepole pine. Growth of seedlings planted in the sidecast and berm was not significantly different than in undisturbed soil. The distinct character of the inner track was evident also by a relatively slow development of vegetation and by a composition of plant species dissimilar from that found on other parts of the skidroad or on undisturbed ground.?Correlations are made among soil and seedling growth characteristics to explain some of the results and to guide further research.
Book Synopsis Ultraviolet-B Radiation Impacts on Tree Seedlings in British Columbia by : Sylvia Jeanne L'Hirondelle
Download or read book Ultraviolet-B Radiation Impacts on Tree Seedlings in British Columbia written by Sylvia Jeanne L'Hirondelle and published by . This book was released on 2002 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides background on the thinning ozone layer and how ultraviolet B radiation (UV-B) affects plants; summarizes the logistics of UV-B exposure studies carried out in British Columbia since 1995; and presents results of this research on the effects of UV-B on tree seedlings for each species studied. These species include fir, birch, cedar, larch, spruce, pine, and hemlock. The report also makes an initial ranking of UV-B sensitivity, compares the results to those of other studies, and recommends directions for further studies.
