Skip to Main Content
Effects of post-harvest treatments on high-elevation forests in the North Cascade Range, Washington.Author(s): Ella Elman; David L. Peterson
Source: BC Journal of Ecosystems and Management. 6(1): 33-50
Publication Series: Scientific Journal (JRNL)
PDF: View PDF (2.9 MB)
DescriptionWe 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 elevationan 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.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- 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.
CitationElman, 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
KeywordsAbies amabilis, Cascade Range, high-elevation forest, overstory, Tsuga heterophylla, understory
- Host range of Secusio extensa (Lepidoptera: Arctiidae), and potential for biological control of Senecio madagascariensis (Asteraceae)
- Prescribed burning ineffective for improving turkey habitat on a recently regenerated mesic site in southern Appalachian Mountains
- Assessing the effectiveness of seeding and fertilization treatments for reducing erosion potential following severe wildfires
XML: View XML