Skip to page content
USDA Forest Service

Research & Development Treesearch

Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help - We Participate  Government Made Easy

Global Forest Information Service

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

(202) 205-8333

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

Publication Information

View PDF (2.9 MB bytes)

Title: Effects of post-harvest treatments on high-elevation forests in the North Cascade Range, Washington.

Author: Elman, Ella; Peterson, David L.;

Date: 2005

Source: BC Journal of Ecosystems and Management. 6(1): 33-50

Publication Series: Scientific Journal (JRNL)

Description: We studied the effects of post-harvest treatments on regeneration and forest composition 13-27 years following harvest in high-elevation forests of the North Cascade Range, Washington. Eighteen sites encompassing three common post-harvest treatments were examined at elevations ranging from 830 m to 1460 m. Treatments included: (1) sites broadcast burned and planted with Abies amabilis or Abies procera; (2) unburned sites seeded with A. amabilis or A. procera; and (3) unburned sites mostly planted with A. amabilis. Overstory and understory species composition was determined and compared to agency records of mature forest stands in the area. Burned-planted sites contained a smaller proportion of A. amabilis than unburned sites. Burned sites also contained less advance regeneration than unburned sites. Two understory vegetation communities were segregated by elevation—an Epilobium angustifolium-Rubus spp. community dominated lower-elevation sites, and a Vaccinium spp. community dominated higher-elevation sites. To date, widespread planting and seeding of A. amabilis have not had significant effects on overstory species composition, although future stand composition is difficult to predict. Comparison of understory composition showed a contrast between shade-tolerant understory species in mature stands and shade-intolerant pioneer species in clearcut sites. Advance regeneration in these systems may be enhanced by not using fire to treat slash.

Keywords: Abies amabilis, Cascade Range, high-elevation forest, overstory, Tsuga heterophylla, understory

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.



Elman, Ella; Peterson, David L. 2005. Effects of post-harvest treatments on high-elevation forests in the North Cascade Range, Washington. BC Journal of Ecosystems and Management. 6(1): 33-50


 [ 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.