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Author : Anonim
Publisher : Unknown
Page : 12 pages
File Size : 41,9 Mb
Release : 2011
Category : Old growth forest conservation
ISBN : MINN:31951D03101633G
Author : Anne Minard
Publisher : Unknown
Page : 8 pages
File Size : 47,6 Mb
Release : 2002
Category : Old growth forest conservation
ISBN : MINN:31951D02459871P
Due to logging and other ecological changes, old trees have grown scarce in most southwestern ponderosa pine forests. Many of those that remain are under increased stress due to competition from overcrowded younger trees, as well as from fire and insects. One of the primary aims of forest restoration is to preserve old trees and to reduce competition around younger trees so that they grow large more quickly. This paper explores methods to avoid fire-caused mortality among the older leave trees during a restoration treatment.
Author : Thomas A. Waldrop,Scott L. Goodrick
Publisher : Government Printing Office
Page : 32 pages
File Size : 43,6 Mb
Release : 2018-03-29
Category : Gardening
ISBN : 0160943957
Prescribed burning is an important tool throughout Southern forests, grasslands, and croplands. The need to control fire became evident to allow forests to regenerate. This manual is intended to help resource managers to plan and execute prescribed burns in Southern forests and grasslands. A new appreciation and interest has developed in recent years for using prescribed fire in grasslands, especially hardwood forests, and on steep mountain slopes. Proper planning and execution of prescribed fires are necessary to reduce detrimental effects, such as the impacts on air and downstream water quality. Check out these related products: Trees at Work: Economic Accounting for Forest Ecosystem Services in the U.S. South can be found here: https://bookstore.gpo.gov/products/trees-work-economic-accounting-forest-ecosystem-services-us-south Soil Survey Manual 2017 is available here: https://bookstore.gpo.gov/products/soil-survey-manual-march-2017 Quantifying the Role of the National Forest System Lands in Providing Surface Drinking Water Supply for the Southern United States is available here: https://bookstore.gpo.gov/products/quantifying-role-national-forest-system-lands-providing-surface-drinking-water-supply Fire Management Today print subscription is available here: https://bookstore.gpo.gov/products/fire-management-today Wildland Fire in Ecosystems: Fire and Nonnative Invasive Plants can be found here: https://bookstore.gpo.gov/products/wildland-fire-ecosystems-fire-and-nonnative-invasive-plants
Author : Sharon M. Hood,U.s. Department of Agriculture,Forest Service
Publisher : CreateSpace
Page : 78 pages
File Size : 42,6 Mb
Release : 2012-10
Category : Nature
ISBN : 1480173967
Historically, many forested ecosystems in the United States burned frequently, both from lightning ignited fires and from Native American burning. Frequent fire maintained low fuel loadings and shaped forests composed of tree species adapted to survive low-intensity frequent fire. In the early 1900s, the United States government initiated a program to suppress all fires, both natural and anthropogenic. Many unintended consequences have resulted from over a century of fire suppression, such as increased tree densities and fuel, increased stress on older trees from competition, and greater risk of bark beetle attacks. These consequences are especially apparent in forests that historically burned frequently and have thus missed many fire cycles. Maintaining old trees and perpetuating large-diameter trees is an increasing concern. Stands of old trees that were historically common across vast landscapes in the United States are now relatively rare on the landscape because of harvesting (Noss and others 1995). Though logging is no longer the principal threat to most old-growth forests, they now face other risks (Vosick and others 2007). Prescribed fire has become a major tool for restoring fire-dependent ecosystem health and sustainability throughout the United States and use will likely increase in the future. However, increased mortality of large-diameter and old trees following fire has been reported in many areas around the country, and there is increased concern about maintaining these on the landscape (Kolb and others 2007; Varner and others 2005). As early as 1960, Ferguson and others (1960) reported high longleaf pine mortality after a low-intensity prescribed burn consumed the majority of heavy duff accumulations around the base of the trees. Mortality of pre-settlement ponderosa pines in prescribed burn areas in Grand Canyon National Park was higher than in control plots (Kaufmann and Covington 2001). After beginning a forest restoration program that reintroduced fire by prescribed burning at Crater Lake National Park, excessive post-fire mortality of larger ponderosa pine was observed in the burn areas, and early season burns had an even higher mortality than late season burns (Swezy and Agee 1991). Both Swezy and Agee (1991) and McHugh and Kolb (2003) reported a U-shaped mortality distribution for ponderosa pine following wildfires, with smaller- and larger-diameter trees having higher mortality than mid-diameter trees. Forest managers around the country have expressed concerns about large-diameter and old tree mortality when prescribed burning in long-unburned forests. The synthesis herein suggests recommendations for maintaining and perpetuating old trees in fire-dependent ecosystems. It expands on efforts funded by the Joint Fire Science Program (JFSP) to define the issues surrounding burning in fire excluded forests of the United States that are adapted to survive frequent fire. When the JFSP initially funded this synthesis, two JFSP projects were examining the effect of raking on reducing old ponderosa and Jeffrey pine (subsequently published in Fowler and others 2010; Hood and others 2007a). Another JFSP project examined the effect of prescribed burning under different duff moisture conditions on long-unburned old longleaf pine mortality (Varner and others 2007). Two other syntheses were also recently published on this subject: Perpetuating old ponderosa pine (Kolb and others 2007) and The conservation and restoration of old growth in frequent-fire forests of the American West (Egan 2007). The scope of the synthesis herein focuses only on limiting over story tree mortality in species adapted to survive frequent fire; therefore, the implications of fire suppression and fuel treatments on other ecosystem components are not discussed.
Author : United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Forests and Public Land Management
Publisher : Unknown
Page : 168 pages
File Size : 54,6 Mb
Release : 1995
Category : Law
ISBN : PSU:000024361682
Author : United States. Congress. Senate. Committee on Agriculture, Nutrition, and Forestry
Publisher : Unknown
Page : 132 pages
File Size : 40,7 Mb
Release : 2003
Category : Business & Economics
ISBN : MINN:31951D02062004L
Author : Sharon M. Hood
Publisher : DIANE Publishing
Page : 80 pages
File Size : 52,9 Mb
Release : 2011
Category : Nature
ISBN : 9781437939033
This is a print on demand edition of a hard to find publication. This report synthesizes the literature and current state of knowledge pertaining to re-introducing fire in stands where it has been excluded for long periods and the impact of these introductory fires on overstory tree injury and mortality. Only forested ecosystems in the United States that are adapted to survive frequent fire are included. Treatment options that minimize large-diameter and old tree injury and mortality in areas with deep duff and methods to manage and reduce duff accumulations are discussed. Pertinent background information on tree physiology, properties of duff, and historical versus current disturbance regimes are also discussed. Charts and tables.
Author : United States. Congress. Senate. Committee on Energy and Natural Resources
Publisher : Unknown
Page : 104 pages
File Size : 51,9 Mb
Release : 2003
Category : Forest fires
ISBN : UCAL:B5133305
Author : Stephen S. Sackett
Publisher : Unknown
Page : 720 pages
File Size : 47,9 Mb
Release : 1992
Category : Prescribed burning
ISBN : STANFORD:36105113735448
Soil and cambium temperatures must be known to ascertain certain effects of prescribed fires on trees. Thermocouple-based systems were devised for measuring soil and cambium temperatures during prescribed fires. The systems, which incorporate both commercially available and custom components, perform three basic functions: data collection, data retrieval, and data translation. Although the systems and procedures for using them were designed for research purposes, they could be adapted for monitoring operational prescribed fires.
Author : Anonim
Publisher : Unknown
Page : 340 pages
File Size : 54,5 Mb
Release : 2003
Category : Electronic
ISBN : NWU:35556034539114
Author : Yves Bergeron,Sylvie Gauthier
Publisher : MDPI
Page : 433 pages
File Size : 49,5 Mb
Release : 2018-04-13
Category : Electronic
ISBN : 9783038423904
This book is a printed edition of the Special Issue "Fire Regimes: Spatial and Temporal Variability and Their Effects on Forests" that was published in Forests
Author : Anonim
Publisher : Unknown
Page : 704 pages
File Size : 46,5 Mb
Release : 1978
Category : Forests and forestry
ISBN : UOM:39015053960111
Author : Anonim
Publisher : Unknown
Page : 440 pages
File Size : 48,8 Mb
Release : 1995
Category : Bird populations
ISBN : STANFORD:36105113735463
Author : Anonim
Publisher : Unknown
Page : 184 pages
File Size : 44,5 Mb
Release : 1994
Category : Forest management
ISBN : IND:30000098204807
Author : W. Henry McNab
Publisher : Unknown
Page : 4 pages
File Size : 53,5 Mb
Release : 1976
Category : Burning of land
ISBN : MINN:31951D03005841W