Download or read book Impacts of a Stump Uprooting Operation 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 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: To ascertain the impacts of stump uprooting operations conducted to control the spread of root disease on site productivity, 600 Douglas-fir and 600 lodgepole pine seedlings were planted on seven plots in a cutover north of Golden, British Columbia. Equal numbers of trees were planted on tracks and deposits created during stump uprooting, and on undisturbed ground, as confirmed by the presence of an intact humus layer. Soil characteristics were measured initially on disturbed and undisturbed portions of the cutover, and tree growth was monitored for eight growing seasons after planting. Foliage was sampled for nutrient content after the fifth year. Comparisons of productivity impacts resulting from uprooting stumps and from other forestry operations were made.

Download or read book General Technical Report RMRS written by and published by . This book was released on 1998 with total page 260 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 1994 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Maintaining the Long term Productivity of Pacific Northwest Forest Ecosystems written by David A. Perry and published by Timber Press (OR). This book was released on 1989 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainability continues to be a major issue in forest management policy, and the papers presented in this volume summarize how various management practices affect forest health in the diverse Northwest forest regions, providing guidelines for the present and future.

Download or read book Root Diseases in Coniferous Forests of the Inland West written by and published by . This book was released on 2005 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: After nearly 100 years of fire exclusion, introduced pests, and selective harvesting, a change in forest composition has occurred in many Inland West forests of North America. This change in forest structure has frequently been accompanied by increases in root diseases and/or an unprecedented buildup of fuels. Consequently, many forest managers are implementing plans for fuels treatments to lower the risk of severe wildfires. Impacts on root disease should be considered before selecting appropriate fuels treatments. Complex interactions exist among conifer root diseases, fuels treatments, forest structure, species composition, stand history, and other environmental factors. As forest managers prescribe fuels treatments, their success in lowering the risk of severe wildfire will depend in part on the impacts of these treatments on root disease. Root diseases are one of many factors to be considered when developing plans for fuels treatments. Choices must be made on a site-by-site basis, with knowledge of the diseases that are present. This paper provides examples of how fuels treatments may increase or reduce specific diseases and demonstrates their importance as considerations in the fuels management planning process. Several root diseases prevalent within Inland West of North America are addressed: Armillaria root disease, annosus root disease, laminated root rot, black stain root disease, Schweinitzii root and butt rot, Tomentosus root disease, Rhizina root rot, and stringy butt rot. For each disease, general information is provided on disease identification, management options, and potential effects of fuels treatments. However, many long-term studies are needed to assess effects of specific interactions among fuels treatments, root diseases, and host trees.

Download or read book The Use of Stumps for Biomass in British Columbia written by Kirsten Hannam and published by . This book was released on 2012 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: In British Columbia, stump removal was first tested in 1968 as a method of reducing the spread of root disease into regenerating stands (Morrison et al. 1988). Over the last few decades, stumping, as it is also known, has been practiced throughout the province in forests infected with the root disease fungi Armillaria ostoyae, Inonotus tomentosus, and Phellinus weirii (Sturrock 2000). Given the growing interest in bioenergy in the province (Province of British Columbia 2008), and the increasing popularity of stumps as a feedstock for bioenergy plants in Europe (e.g., Bjorheden 2006; Hakkila 2006), it is timely to consider the viability of using stumps as an energy source in British Columbia.

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.

Download or read book Impacts of Forest Harvesting and Regeneration on Forest Sites written by British Columbia. Ministry of Forests and published by Province of British Columbia Ministry of Environment. This book was released on 1990 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the impacts of forestry activity on soil properties and site productivity. Includes information on assessing soil sensitivity and site rehabilitation.

Download or read book Canadian Journal of Forest Research written by and published by . This book was released on 2014 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microlog Canadian Research Index written by and published by . This book was released on 1994 with total page 1292 pages. Available in PDF, EPUB and Kindle. Book excerpt: An indexing, abstracting and document delivery service that covers current Canadian report literature of reference value from government and institutional sources.

Download or read book Information Report written by and published by . This book was released on 1985 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Canadian Journal of Soil Science written by and published by . This book was released on 1998 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Infectious Forest Diseases written by Paolo Gonthier and published by CABI. This book was released on 2013 with total page 681 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, forest health and the management of threats towards it are attracting more and more attention on a global scale. This book covers the most recent advances in the management of forest diseases, including the epidemiology and infection biology of forest pathogens, and forest protection based on integrated pest and disease management approaches. A comprehensive range of diseases caused by viruses, bacteria, fungi and other organisms are discussed in detail, making this book essential reading for forest managers and extension specialists. Written by recognized authorities in the subject of forest health, this book also provides a wealth of information useful for researchers and lecturers of forest pathology and ecology.

Download or read book Laminated Root Rot in Western North America written by and published by . This book was released on 1995 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the Convention of the Society of American Foresters written by Society of American Foresters. Convention and published by . This book was released on 1984 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of The Society of American Foresters National Convention written by Society of American Foresters and published by . This book was released on 1982 with total page 1034 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technology Transfer Notes written by and published by . This book was released on 1997 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: