A Probabilistic Model of Large Woody Debris Movement and Distribution in Small Mountain Streams PDF Download
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Author: Sophia Nicole Potoczak
Publisher:
ISBN:
Category : Coarse woody debris
Languages : en
Pages : 72
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Author: Sophia Nicole Potoczak
Publisher:
ISBN:
Category : Coarse woody debris
Languages : en
Pages : 72
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Book Description
Author: Don C. Bragg
Publisher:
ISBN:
Category : Riparian forests
Languages : en
Pages : 44
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Book Description
As our understanding of the importance of large woody debris (LWD) evolves, planning for its production in riparian forest management is becoming more widely recognized. This report details the development of a model (CWD, version 1.4) that predicts LWD inputs, including descriptions of the field sampling used to parameterize parts of the model, the theoretical and practical underpinnings of the model's structure, and a case study of CWD's application to a stream in Wyoming's Bridger-Teton National Forest.
Author: Don C. Bragg
Publisher:
ISBN:
Category : Coarse woody debris
Languages : en
Pages : 36
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Book Description
As our understanding of the importance of large woody debris (LWD) evolves, planning for its production in riparian forest management is becoming more widely recognized. This report details the development of a model (CWD, version 1.4) that predicts LWD inputs, including descriptions of the field sampling used to parameterize parts of the model, the theoretical and practical underpinnings of the model's structure, and a case study of CWD's application to a stream in Wyoming's Bridger-Teton National Forest.
Author: Kurt D. Fausch
Publisher:
ISBN:
Category : Arapaho National Forest (Colo.)
Languages : en
Pages : 38
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Author: Don C. Bragg
Publisher:
ISBN:
Category :
Languages : en
Pages : 36
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Book Description
Author: Kelly Harpster Allen
Publisher:
ISBN:
Category :
Languages : en
Pages : 204
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Book Description
Author: Nicholas Marsh
Publisher:
ISBN:
Category : Coarse woody debris
Languages : en
Pages : 404
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Author:
Publisher:
ISBN:
Category : Great Smoky Mountains National Park (N.C. and Tenn.)
Languages : en
Pages : 90
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Book Description
In the early 1900s, large sections of the Great Smoky Mountains were in- tensively logged. Since then, most locations have been allowed to naturally become forest-covered again, resulting in areas of secondary growth and old growth forest. To determine whether dierences in large woody debris (LWD) loading and channel morphology persist today, I measured LWD, channel widths and depths, and channel bed sediments of streams in old and secondary growth forest in the Great Smoky Mountains National Park. LWD pieces in streams in old growth had larger mean diameters and lengths compared to LWD in streams in secondary growth forest. Streams in old growth had 5.6 times more LWD volume than those in secondary growth. More LWD pieces were in debris dams in old growth than in secondary growth forest. Channel bed sediment size did not dier signicantly between streams in old and secondary growth forest. Channel widths and depths were signicantly larger in streams in old growth forest. LWD pieces aected channel depth primarily by creating pools and causing deposition of sediment. LWD aected width by directing stream ow toward banks and by protecting banks from erosion. I observed that the orientation of LWD was important in determining its geomorphic role. Although I found no relationship between LWD loading and watershed area, I found a relationship between watershed area and the importance of LWD in impacting channel morphology. Despite dierences in LWD frequency and total volume, streams in old and secondary growth forest diered little in width and depth in the largest watersheds in this study. However, in smaller watersheds, streams in old growth were not as narrow or as shallow as streams in secondary growth. LWD loading can vary substantially between streams, even those with similar surrounding forest types, climate, and disturbance histories; therefore, caution should be exercised when using LWD loading rates from other studies in environmental management. Despite nearly 80 years of forest regrowth, LWD loading and channel morphologies of streams still show the impacts of logging.
Author:
Publisher:
ISBN:
Category : Aspen
Languages : en
Pages : 68
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Book Description
Author: Neil S. Lassettre
Publisher:
ISBN:
Category : Stream ecology
Languages : en
Pages : 136
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Book Description
