Download or read book Timber Harvesting and Soil Erosion written by Carl J. Hauge and published by . This book was released on 1977 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Factors Influencing Soil Erosion on Timber harvested Lands in California written by and published by . This book was released on 1983 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Best Management Practices for Controlling Soil Erosion on Timber Harvesting Operations in New Hampshire written by and published by . This book was released on 2010 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Impact of Timber Harvest on Soils and Water written by United States. Forest Service and published by . This book was released on 1973 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Erosion Effects in a Watershed from Forest Harvesting in the Maywoods Environmental and Educational Laboratory written by Lisa LaMae Rossiter and published by . This book was released on 2000 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Timber harvesting in many states is being practiced under guidelines known as Best Management Practices (BMPs) that try to balance harvesting methods with ecological protection that includes reducing soil erosion. The purpose of this study was to examine the effects that timber harvesting has on soil erosion to better examine the current BMPs and to create new guidelines for ephemeral stream watersheds. This project utilized paired watershed sites; one was undergoing a commercial thinning to improve the quality of the timber stand, the other was not harvested and served as a control. Within these watersheds, 30 examination points were utilized for soil collection. The data collected from these points included slope, soil mass, soil type, and soil particle size distribution. After analysis in the lab, the ANOVA statistical results that were conducted show r-observational values to be in the range of 0.88 to 0.94 on the low moderate slopes indicating a very small difference between the harvesting area and the corresponding control area. However, on the high slopes the r-observational values were 0.21 to 0.33, which indicates a much larger difference from the corresponding control point and hence an erosional difference. The amount of precipitation and the logging methods also significantly impacted the degree of erosion seen throughout the harvested area. Throughout this project, there was much less precipitation than normal for this area which skewed the results gained when there might have been a large potential for further erosion in a typical year. The conclusions drawn from this project are two-fold. First, the harvesting was done to improve the quality of the timber stand, but based on a previous study conducted in the same area, there is a concern that the large ruts and large-scale disturbances in soil compaction caused by harvesting techniques may lead to increases in the frequency and amplitude of mass movement events, which has the potential to cause a decrease in youthful and potentially commercial vegetation. Second, the logging methods used showed the potential for increased erosion and changes in the type and numbers of organisms that may inhabit the area in the future. Due to harvesting practices such as tree uprooting, the percent of unconsolidated material increased which then increases the potential for future erosion. Additionally, excess organic matter left behind as treetop waste will eventually weather, decay and move downslope toward the stream. When it does, it may lead to a change in the BOD and nutrient levels, which can change the ecological environment, especially within the ephemeral stream.
Download or read book Timber Harvesting written by United States. Congress. Senate. Committee on Agriculture, Nutrition, and Forestry. Subcommittee on Environment, Soil Conservation, and Forestry and published by . This book was released on 1979 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Timber Harvesting on Erosion Sedimentation in New Hampshire written by Daniel B. DeHart and published by . This book was released on 1982 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Conservation Guidebook written by British Columbia. Ministry of Forests and published by . This book was released on 2001 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides direction on how to prepare operational plans and prescriptions that require specification of limits for various types of soil disturbance during forestry operations.
Download or read book Timber Harvesting and Water Quality in Connecticut written by and published by . This book was released on 1990 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Timber Harvest Unit Delinetion Model to Minimize Soil Erosion written by Fabián Islas-Gutiérrez and published by . This book was released on 1996 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Soils written by and published by . This book was released on 1992 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Timber Harvest Following Wildfire in Western North America written by and published by . This book was released on 2009 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis provides an ecological foundation for management of the diverse ecosystems and fire regimes of North America, based on scientific principles of fire interactions with vegetation, fuels, and biophysical processes. Although a large amount of scientific data on fire exists, most of those data have been collected at small spatial and temporal scales. Thus, it is challenging to develop consistent science-based plans for large spatial and temporal scales where most fire management and planning occur. Understanding the regional geographic context of fire regimes is critical for developing appropriate and sustainable management strategies and policy. The degree to which human intervention has modified fire frequency, intensity, and severity varies greatly among different ecosystems, and must be considered when planning to alter fuel loads or implement restorative treatments. Detailed discussion of six ecosystems--ponderosa pine forest (western North America), chaparral (California), boreal forest (Alaska and Canada), Great Basin sagebrush (intermountain West), pine and pine-hardwood forests (Southern Appalachian Mountains), and longleaf pine (Southeastern United States)--illustrates the complexity of fire regimes and that fire management requires a clear regional focus that recognizes where conflicts might exist between fire hazard reduction and resource needs. In some systems, such as ponderosa pine, treatments are usually compatible with both fuel reduction and resource needs, whereas in others, such as chaparral, the potential exists for conflicts that need to be closely evaluated. Managing fire regimes in a changing climate and social environment requires a strong scientific basis for developing fire management and policy. --
Download or read book Erosion and Sedimentation Following Road Construction and Timber Harvest on Unstable Soils in Three Small Western Oregon Watersheds written by R. L. Fredriksen and published by . This book was released on 1970 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Know Soil Know Life written by David L. Lindbo and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Audience: Students studying environmental science or participating in an Envirothon or Science Olympiad will find Know Soil, Know Life is an easily accessible resource. Undergraduate students in introductory ecology and environmental science classes will have a manageable soils textbook. Scientists in related disciplines wildlife, forestry, geology, hydrology, biology, zoology will enjoy this engaging introduction to soils.
Download or read book Wood Residue Recovery in the National Forests written by United States. Congress. Senate. Committee on Agriculture, Nutrition, and Forestry. Subcommittee on Environment, Soil Conservation, and Forestry and published by . This book was released on 1980 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Impact of Harvesting Noncommercial Wood for Energy written by Colin J. High and published by . This book was released on 1977 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a preliminary report for discussion embodying some findings of analyses undertaken at the Thayer School of Engineering. These were conducted as part of a feasibility study for a 50-megawatt wood-fired power plant in Vermont and in preparation for an environmental impact assessment of a wood-fired electric/steam congeneration facility now in the planning phase for a site in Maine. The major research problems associated with the environmental impact of harvesting wood for electric power generation and industrial energy are highlighted.
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.
