Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (1.1 MB bytes)

Title: Erosion, sedimentation, and cumulative effects in the Northern Rocky Mountains

Author: Megahan, Walter F.; King, John G.;

Date: 2004

Source: In: Ice, George G.; Stednick, John D., eds. A century of forest and wildland watershed lessons. Bethesda, Md.: Society of American Foresters: p. 201-222

Publication Series: Miscellaneous Publication

Description: Erosion and sedimentation are natural geomorphic processes characterized by large temporal and spatial variability. Recent radionuclide studies suggest that rare episodic events, such as large wildfires, produce massive sediment yields over time scales of thousands of years, thereby causing long-term average sediment production to exceed present-day average erosion rates by a factor of about 10. Even today, in undisturbed forested watersheds, sediment production is highly variable. Early studies of the effects of grazing and wildfire and surveys of river basins provided a foundation for much of the subsequent research on the effects of forest practices on erosion and sedimentation. The erosional and sedimentation effects of wildfire have been documented in many locations - ranging from none to minimal for low-intensity burns to catastrophic for highintensity burns. Management of forestlands to regulate the risk of wildfire effects on erosion and sedimentation is an important present-day concern throughout the region.

Keywords: erosion, sedimentation, watersheds, forest management, residual effects, logging effects, erosion control, timber, harvesting, forest roads, temporal variability, wildfires, research needs, Idaho, Montana, Rocky Mountains

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
  • You may send email to rmrspubrequest@fs.fed.us to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)

XML: View XML

Citation:


Megahan, Walter F.; King, John G. 2004. Erosion, sedimentation, and cumulative effects in the Northern Rocky Mountains. In: Ice, George G.; Stednick, John D., eds. A century of forest and wildland watershed lessons. Bethesda, Md.: Society of American Foresters: p. 201-222

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.