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Excerpt from Early Postfire Revegetation in a Western Montana Douglas-Fir Forest The Pattee Canyon drainage is located in the north end of the, Sapphire Mountains in west-central Montana just southeast of Missoula. Pattee Creek drains the area and is fed by more than a dozen first to third-order tributaries draining the side ridges. During spring runoff these. Small first and second-order streams may flow overland their entire length, but in summer they become intermittent. The fire burned a portion of the north-facing s10pe of the canyon lying below Mount Dean Stone (fig. Land holdings in the area are divided among private, State, and Federal ownerships (fig. 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.
Restoring historical forest conditions is often a driving force behind forest management activities today. However, determining historical, pre-settlement conditions can be challenging. Utilizing General Land Office (GLO) survey notes to reconstruct historical stand structure is one method to achieve this goal. Original GLO survey notes from 1902 were used to reconstruct historical stand condition in a 2,694 acre ponderosa pine/ Douglas6fir forest. Surveyed corners or their approximate locations were relocated. The procedure for establishing bearing trees by the original surveyor was duplicated in the field at these corner locations in 2007, including tree data to the nearest 1 inch diameter class to produce a modern day version of the original 1902 notes. A point-to-tree sampling system was then applied to both the 1902 and 2007 bearing tree data to determine tree density (trees/acre) and basal area stocking by species and diameter class for each data set. My hypothesis was that between 1902 and 2007, tree density increased, quadratic mean diameter decreased, and species composition shifted from nearly pure ponderosa pine to ponderosa pine/Douglas-fir as a result of timber harvesting and fire exclusion, I also hypothesized that the fire regime for the stand has changed from one of low intensity fire in 1902 to one with high potential for stand-replacing fire in 2007. These hypotheses were supported in the process of data analysis, modeling, and interpretation. The number of trees/acre increased from 37 in 1902 to 202 in 2007. There was also a big increase in basal area from 82 ft2/ac in 1902 to 204 ft2/ac in 2007. Quadratic mean diameter at one foot above ground line decreased during the period from 20.1" to 13.6". In 1902, species composition based on proportional basal area was 97% ponderosa pine and 3% Douglas-fir, but by 2007 this had changed to 60% ponderosa pine and 40% Douglas-fir. Furthermore, the fire regime has changed from low severity with low potential for crown fire in 1902, to high severity with a high risk of stand-replacing wildfire in 2007.
Excerpt from Response of Blue Huckleberry to Prescribed Fires in a Western Montana Larch-Fir Forest Many species of shrubs common to western forests respond to fire by reproducing vegetatively. After fire has killed the top of the plant, sprouts develop from root crowns or from rhizomes, underground stems located in duff and soil layers (fig. 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.
Logging slash on 73 clearcuts was broadcast burned over a wide range of conditions, achieving a broad array of fire intensities and effects. An intense wildfire was also evaluated. Fire effectiveness was measured and related to preburn conditions and fire intensity. Treatment effects on air quality, forest regeneration, vegetation recovery and development, small mammal populations, soil physical and chemical parameters, and runoff and erosion were measured and analyzed.
Excerpt from The Historical Role of Fire on the Bitterroot National Forest Presents frequencies, intensities, and influences of fire on stand structure and composition on the Bitterroot National Forest in west central Montana. Three study areas were established, each having a wide range of elevations and forest types. Findings are based upon study of nearly 900 individual fire scars on living trees, and on age classes of shade - intolerant trees attributable to fire. During the period from 1600 to 1900 fires were frequent in most habitat types, and substantial amounts of forest survived most fires. Some high-intensity stand-destroying fires were also detected in cer tain habitat types on each study area. Results show that fire was historically a major force in stand development, but that it has been of minor significance during the past 50 years, possibly because of organized fire suppression. 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.