Disturbance and Long-term Vegetation Change in the High- Elevation Deciduous Forests of Great Smoky Mountains National Park PDF Download
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Author: David B. Vandermast
Publisher:
ISBN:
Category : Forest ecology
Languages : en
Pages : 382
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Book Description
Author: David B. Vandermast
Publisher:
ISBN:
Category : Forest ecology
Languages : en
Pages : 382
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Book Description
Author: Cathryn H. Greenberg
Publisher: Springer
ISBN: 3319215272
Category : Nature
Languages : en
Pages : 406
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Book Description
This book discusses the historic range of variation (HRV) in the types, frequencies, severities and scales of natural disturbances, and explores how they create heterogeneous structure within upland hardwood forests of the Central Hardwood Region (CHR). The book was written in response to a 2012 forest planning rule which requires that national forests to be managed to sustain ‘ecological integrity’ and within the ‘natural range of variation’ of natural disturbances and vegetation structure. Synthesizing information on HRV of natural disturbance types, and their impacts on forest structure, has been identified as a top need.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Lisa Battaile LaForest
Publisher:
ISBN:
Category : Ecological disturbances
Languages : en
Pages : 293
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Book Description
Disturbance is a natural part of any forest ecosystem. When disturbance regimes are altered, the forest stands will reflect those changes. Southern Appalachian xeric pine-oak woodlands are one forest type that has experienced such change, primarily in the form of fire suppression. The western side of Great Smoky Mountains National Park contains stands of large trees that escaped earlier intensive logging, show evidence of past fire, and provide an ideal setting for reconstructing stand histories. For three lower-elevation (ca. 500 m ASL) study sites, I used cross dated yellow pine tree-ring chronologies and records from cross-sections taken from living and dead pines to reveal historical patterns and relationships of wildfire, climate, and human activity. Cores and vegetation data collected at three 20 x 50 m plots per site provided age structure, stand structure, and stand composition. All three chronologies displayed a high degree of sensitivity to yearly environmental fluctuations and extended back through the 1700s. Yellow pine growth was strongly and positively correlated with winter temperatures, which were primarily influenced by the North Atlantic Oscillation. The tested climate variables displayed relationships that appeared to shift over time, or across an ambiguous boundary on which the park resides. Climate oscillations in both the Atlantic Ocean and Pacific Ocean modulated wildfire frequency and events. Wildfire events occurred frequently prior to park establishment in 1934 and were primarily anthropogenic in origin. Most fires burned during dormancy or early in the growing season, but widespread and more recent fires tended to occur later. Fire frequency peaked in the 1800s with an average return interval of two years. Absence of wildfire during suppression was associated with establishment of fire-sensitive species, such as red maple and eastern white pine. Yellow pine regeneration was weak and dominated by Virginia pine. Results from this study can be used by park personnel to plan and manage fires to restore ecosystem processes to a pre-suppression state. The chronologies provided three centuries of data that can be used to reconstruct climate variables and to enhance our understanding of climate dynamics.
Author: Esther D. Schneider
Publisher:
ISBN:
Category :
Languages : en
Pages : 232
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Book Description
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 848
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Book Description
Author: Dan D. Williams
Publisher: Dan Williams
ISBN: 1451564988
Category : Nature
Languages : en
Pages : 254
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Book Description
Four important factors have shaped the forests of Great Smoky Mountains National Park, the world's stellar example of southern Appalachian forests. These factors are elevation, landform, forest succession and exotic tree pests. This book explains how to identify and understand the Park's forests based these factors. Elevation and landform are defined and summarized in the Forest Finder, a graphical representation of the 15 major southern Appalachian forest types found in the Park. You can use the Forest Finder to identify forests when you visit Great Smoky Mountains National Park and surrounding national forests. Each forest type is described in detail, as are most of the major trees of the southern Appalachians. Also included are instructions on downloading and interpreting free topographic maps that contain the elevation and land shape information used as inputs to the Forest Finder. Southern Appalachian forest succession is clearly explained, and the reader is shown how to interpret changes in forest succession brought about by land clearing and logging operations in the Park. The associated tree table shows shade tolerance ratings, canopy position and moisture preference for major southern Appalachian trees and shrubs. Important exotic tree pests are described, including the chestnut blight and the hemlock wooly adelgid, as well as their drastic effect on the Park's forests. Along the way the reader learns how to sample the forest using skills like pacing, measuring tree diameter, estimating tree age, determining successional stage and identifying major southern Appalachian tree species. The book directs readers to a web site where free large scale, full color versions of all maps and graphs in the book can be downloaded.
Author: Mary Lindsay
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 300
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Author:
Publisher:
ISBN:
Category : Remote sensing
Languages : en
Pages : 414
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Book Description
Author: Charlotte Pyle
Publisher: Forgotten Books
ISBN: 9781390923223
Category :
Languages : en
Pages : 88
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Book Description
Excerpt from Vegetation Disturbance History of Great Smoky Mountains National Park: An Analysis of Archival Maps and Records Pyle, Charlotte. 1985. Vegetation Disturbance History of Great Smoky Mountains National Park: An Analysis of Archival Maps and Records. U.s. Department of the Interior, National Park Service, Research/ Resources Management Report ser-77. Southeast Regional Office, Atlanta, Georgia. 69 pp. 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.
