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 (776 KB bytes)

Title: Vegetation responses to helicopter and ground based logging in blackwater floodplain forests

Author: Jones, R.H.; Stokes, S.L.; Lockaby, B.G.; Stanturf, John.A.;

Date: 2000

Source: Forest Ecology and Management 139: 215-225

Publication Series: Miscellaneous Publication

Description: Logging in floodplains of low order, blackwater streams may damage cxisting seedlings and rootstocks, and create soil conditions that inhibit establishment and growth of regeneration after harvest. Removal of logs via helicopters has been advocated to minimize soil damage and facilitate rapid revegetation. We tested impacts of helicopter versus conventional skidder harvest systems on regeneration, woody plant community structure and biomass growth in three blackwater stream floodplains in southern Alabama. The helicopter treatment resulted in significantly greater woody plant density (19,900 versus 14,300 stemsha by Year 8), but both treatments were well-stocked with commercially valuable species. By Year 8, treatment effects on density of individual species were generally not significant; however, density of Cliftonia monophylla was lower on skidder plots (p=0.001) and density of Nyssu sylvancu var. bijloru was lower on helicopter plots (p=0.092). In both treatments, species richness within 0.004 had regeneration plots declined slightly between pre- and post harvest, but the Shannon diversity and evenness indices remained essentially unchanged through 8 years after treatment. Post-harvest survival of Acer rubrum, Cyrilla racemiflora and C. monophylla rootstocks was significantly lower on the skidder plots. In both treatments, species dominant before harvest remained so aftenvards. Species with the tallest sprouts in Year 8 were Liriodendmn tulipiferu, Magnolia virginiana, and A. rubrum. During the first 2 years after logging, aboveground biomass was greater in the helicopter treatment, but the difference was only significant in Year 1. We conclude that both harvesting methods had little effect on species composition. Skidding may result in a stand structure more; Favorable for commercial timber production; however, impacts of skidding on long-term productivity are not yet known.

Keywords: Clearcut, coastal plain, diversity, plant community structure, regeneration

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 pubrequest@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:


Jones, R.H.; Stokes, S.L.; Lockaby, B.G.; Stanturf, John.A. 2000. Vegetation responses to helicopter and ground based logging in blackwater floodplain forests. Forest Ecology and Management 139: 215-225

 


 [ 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.