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Book Predicting Duff and Woody Fuel Consumed by Prescribed Fire in the Northern Rocky Mountains Classic Reprint

Download or read book Predicting Duff and Woody Fuel Consumed by Prescribed Fire in the Northern Rocky Mountains Classic Reprint written by James K. Brown and published by Forgotten Books. This book was released on 2018-03-20 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Predicting Duff and Woody Fuel Consumed by Prescribed Fire in the Northern Rocky Mountains Data from the following prescribed burn studies in western Montana and northern Idaho were assimilated and analyzed. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Book Woody Fuel and Duff Consumption by Prescribed Fire in Northern Idaho Mixed Conifer Logging Slash

Download or read book Woody Fuel and Duff Consumption by Prescribed Fire in Northern Idaho Mixed Conifer Logging Slash written by and published by . This book was released on 1991 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental burns were conducted on 36 plots in mixed conifer logging slash in northern Idaho to investigate consumption of duff and woody fuel. Prescribed fires were conducted in spring and fall, in YUM (yarded unmerchantable material) and non-YUM clearcuts and seedtree cuts. Preburn and postburn fuel loadings were measured, and fuel moistures were sampled shortly before burning. Preburn duff depth ranged from 1.2 to 2.6 inches. Preburn woody fuel loadings ranged from 28 to 86 tons/acre. Sixty-four percent of the duff was consumed. Most of the small woody fuel was consumed, along with an average of 15.5 tons/acre of large woody fuel. Postburn mineral soil exposure averaged 66 percent. Residual loading of large woody fuel averaged 31 tons/acre. Methods for predicting duff and woody fuel consumption are reported. For predicting percentage of duff reduced, the best independent variables were shallow duff moisture content and unit average diameter reduction of large woody material. For predicting duff depth reduction, the best independent variables were average duff moisture content and preburn duff depth. Diameter reduction of large woody fuel was best predicted using moisture content and average preburn diameter as independent variables. Guidelines are included for fire prescription development. These include recommendations for amounts of fuel to retain and to consume and discussion of tradeoffs in setting fire objectives. Equations are presented for computing moisture contents.

Book Predicting Duff Consumption From Prescribed Burns on Conifer Clearcuts in Western Oregon and Western Washington Classic Reprint

Download or read book Predicting Duff Consumption From Prescribed Burns on Conifer Clearcuts in Western Oregon and Western Washington Classic Reprint written by Susan N. Little and published by Forgotten Books. This book was released on 2018-09-15 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Predicting Duff Consumption From Prescribed Burns on Conifer Clearcuts in Western Oregon and Western Washington The amount of duff consumed during a prescribed burn depends on the moisture profile of the duff and on the amount and duration of heat from the burning woody fuel. Duff will burn independently of heat provided by burning woody fuel at a moisture content of 30 percent (shearer The amount of heat needed to draw off moisture to that level depends, of course, on how wet the duff is before ignition. If a dry layer exists on the surface, it may reduce heat penetration in the duff pro file, and duff consumption will be dependent on fire duration. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Book Woody Fuel and Duff Consumption by Prescribed Fire in Northern Idaho Mixed Conifer Logging Slash Classic Reprint

Download or read book Woody Fuel and Duff Consumption by Prescribed Fire in Northern Idaho Mixed Conifer Logging Slash Classic Reprint written by Elizabeth D. Reinhardt and published by Forgotten Books. This book was released on 2017-11-18 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Woody Fuel and Duff Consumption by Prescribed Fire in Northern Idaho Mixed Conifer Logging Slash Because of these considerations, managers at tempt to remove specified amounts of fuel and also retain desired amounts of residual organic material. Consumption of fuels and retention of organic material can be described in several ways. Duff consumption is often described as depth reduction, percentage depth reduction, and percentage mineral soil exposure. For evaluating smoke emissions and nutrient capital, depth reduction is the appropriate expression because it describes actual amounts and can be converted to weight if duff bulk density is known. Percentage duff reduction is commonly used to describe fire prescription targets. It must be applied to preburn depth or loading to estimate actual amounts of duff removed or retained. Per centage mineral soil exposure relates to regenera tion potential, seedbed quality, and vulnerability to erosion. Objectives and constraints of prescribed fire can often be expressed as desired or acceptable levels of percentage mineral soil exposure. Consumption of woody fuel is often described as percentage of preburn fuel quantities consumed, especially for evaluating prescribed fire effects and designing fire prescriptions. It may be pre dicted initially as average diameter reduction of woody pieces and then converted to percentage volume reduction or fuel loading reduction. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Book Predicted Down Woody Fuel Consumption in the Burnup Model

Download or read book Predicted Down Woody Fuel Consumption in the Burnup Model written by Duncan Campbell Lutes and published by . This book was released on 2013 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Burnup is a research-based mechanistic fuel consumption model that has been developed, tested, and calibrated in previous work ... Data are brought into Burnup using input files that describe size class (surface area to volume ratio [S/V ratio]), biomass, fuel moisture, wood density, mineral ash fraction, heat of combustion, heat capacity, thermal conductivity, ignition temperature, and char temperature for each fuel component. The basic premise of the model is that adjacency of pieces of woody material primarily determines consumption through local fire intensity"--Page 2.

Book Duff Reduction by Prescribed Underburning in Douglas fir

Download or read book Duff Reduction by Prescribed Underburning in Douglas fir written by David Sandberg and published by . This book was released on 1980 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Surface Fuel Loadings and Predicted Fire Behavior for Vegetation Types in the Northern Rocky Mountains Classic Reprint

Download or read book Surface Fuel Loadings and Predicted Fire Behavior for Vegetation Types in the Northern Rocky Mountains Classic Reprint written by James Kerr Brown and published by Forgotten Books. This book was released on 2017-11-19 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Surface Fuel Loadings and Predicted Fire Behavior for Vegetation Types in the Northern Rocky Mountains Many stands, identified by overstory cover type, were selected from large areas for fuel sampling. Selected stands were identified on aerial photographs and then located in the field. Stands were also selected while hiking on and off trails. Stand selection was not entirely random; however, effort was made to systematically and objectively distribute stands throughout entire drainages. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Book Modeling Moisture Content of Fine Dead Wildland Fuels

Download or read book Modeling Moisture Content of Fine Dead Wildland Fuels written by Richard C. Rothermel and published by . This book was released on 1986 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes a model for predicting moisture content of fine fuels for use with the BEHAVE fire behavior and fuel modeling system. The model is intended to meet the need for more accurate predictions of fine fuel moisture, particularly in northern conifer stands and on days following rain. The model is based on the Canadian Fine Fuel Moisture Code (FFMC), modified to account for solar heating of fuels and to predict diurnal trends in fine fuel moisture. The model may be initiated without extensive data on prior weather. When compared to the FFMC and the fire behavior officers' procedures, the new model gave consistently better predictions over the complete range of fuel conditions.

Book Standard Fire Behavior Fuel Models

Download or read book Standard Fire Behavior Fuel Models written by Joe H. Scott and published by . This book was released on 2005 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Preliminary Guidelines for Prescribed Burning Under Standing Timber in Western Larch Douglas fir Forests

Download or read book Preliminary Guidelines for Prescribed Burning Under Standing Timber in Western Larch Douglas fir Forests written by Rodney A. Norum and published by . This book was released on 1977 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guidelines are offered for safe, effective fire treatments in western larch/Douglas-fir forests. Describes procedures for estimating and limiting the scorching of tree crows. Provides a method for predicting percentage of the forest floor that will be burned down to mineral soil.