Author: Gordon E. GrantPublisher:
ISBN:
Category :
Languages : en
Pages : 76
Book Description
Effects of Forest Practices on Peak Flows and Consequent Channel Response
Author: Gordon E. GrantEffects of Forest Practices on Peak Flows and Consequent Channel Response
Author: Gordon E. GrantPublisher: DIANE Publishing
ISBN: 1437927130
Category : Nature
Languages : en
Pages : 84
Book Description
Includes a database of relevant studies reporting peak flow data across rain-, transient-, and snow-dominated hydrologic zones. Provides a quantitative comparison of changes in peak flow across both a range of flows and forest practices. Increases in peak flows generally diminish with decreasing intensity of percentage of watershed harvested and lengthening recurrence intervals of flow. Peak flow effects on channel morphology should be confined to stream reaches where channel gradients are less than 0.02 and streambeds are composed of gravel and finer material. Managers should evaluate the potential risk of peak flow increases based on factors such as presence of roads, specific mgmt. treatments employed, and watershed drainage efficiency.
Effects of Forest Practices on Peak Flows and Consequent Channel Response
Author: Gordon GrantPublisher:
ISBN:
Category : Forest hydrology
Languages : en
Pages : 86
Book Description
This is a state-of-the-science synthesis of the effects of forest harvest activities on peak flows and channel morphology in the Pacific Northwest, with a specific focus on western Oregon and Washington. We develop a database of relevant studies reporting peak flow data across rain-, transient-, and snow-dominated hydrologic zones, and provide a quantitative comparison of changes in peak flow across both a range of flows and forest practices. Increases in peak flows generally diminish with decreasing intensity of percentage of watershed harvested and lengthening recurrence intervals of flow. Watersheds located in the rain-dominated zone appear to be less sensitive to peak flow changes than those in the transient snow zone; insufficient data limit interpretations for the snow zone. Where present, peak flow effects on channel morphology should be confined to stream reaches where channel gradients are less than approximately 0.02 and streambeds are composed of gravel and finer material. We provide guidance as to how managers might evaluate the potential risk of peak flow increases based on factors such as presence of roads, watershed drainage efficiency, and specific management treatments employed. The magnitude of effects of forest harvest on peak flows in the Pacific Northwest, as represented by the data reported here, are relatively minor in comparison to other anthropogenic changes to streams and watersheds.
Rogue River-Siskiyou National Forest (N.F.), Eden Ridge Timber Sales, Coos County
Author: Kootenai National Forest (N.F.), Sparring Bulls
Author: Shasta-Trinity National Forest (N.F.), Motorized Travel Management
Author: CWE
Author: Publisher:
ISBN:
Category : Cumulative effects assessment (Environmental assessment)
Languages : en
Pages : 306
Book Description
Klamath National Forest (N.F.), Motorized Travel Management (formerly Motorized Route Designation)
Author: Hydrology and the Management of Watersheds
Author: Kenneth N. BrooksPublisher: John Wiley & Sons
ISBN: 0470963050
Category : Technology & Engineering
Languages : en
Pages : 562
Book Description
This new edition is a major revision of the popular introductory reference on hydrology and watershed management principles, methods, and applications. The book's content and scope have been improved and condensed, with updated chapters on the management of forest, woodland, rangeland, agricultural urban, and mixed land use watersheds. Case studies and examples throughout the book show practical ways to use web sites and the Internet to acquire data, update methods and models, and apply the latest technologies to issues of land and water use and climate variability and change.
Author: