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
Help
 

GeoTreesearch


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

(825 KB)

Title: Perception of scale in forest management planning: Challenges and implications

Author: Tang, Swee May; Gustafson, Eric J.

Date: 1997

Source: Landscape and Urban Planning 39 (1997) l-9

Publication Series: Journal/Magazine Article (JRNL)

Description: Forest management practices imposed at one spatial scale may affect the patterns and processes of ecosystems at other scales. These impacts and feedbacks on the functioning of ecosystems across spatial scales are not well understood. We examined the effects of silvicultural manipulations simulated at two spatial scales of management planning on landscape pattern and assessed the implications for forest-interior bird species. Landscape context was taken into consideration in determining harvest locations in the landscape-base management planning scenario but not in the stand-base planning scenario (where the focus of planning activities was at the level of individual stands and the context in which stands were located was not considered). We also compared ecological implications of patterns created at the stand and landscape levels by even- and uneven-age silvicultural systems. We used a harvest simulator (HARVEST) to simulate even-age, uneven-age and a combination of even- and uneven-age management systems for a period of 5 decades in the two forest management planning scenarios. Clearcuts of 5 to 16 ha were simulated to represent even-age management and small openings of 0.09 to 0.22 ha scattered throughout a stand were simulated to represent uneven-age management. Forest management that considered landscape context generated greater landscape total core area compared to that of the stand-base planning. There was a difference in landscape mean patch size, interspersion index, Simpson`s diversity index and total core area for patches defined by stand age between stand- and landscape-base management planning. These results indicate that different landscape patterns can be produced by management planning conducted at different spatial scales. The scale of focus should depend on the management goals. Silvicultural manipulations at the stand level can cause the creation of different patterns at the stand and landscape levels. Such differences can lead to different ecological implications at each of those levels, thereby making it difficult to simply aggregate stand-level responses to the landscape-level. Furthermore, the ecological effects of landscape patterns on processes can be highly variable as the effects depend on how patches are defined.

Keywords: Forest management planning, scale, spatial pattern, forest birds, timber harvest, fragmentation, landscape metrics

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.
  • This publication may be available in hard copy. Check the Northern Research Station web site to request a printed copy of this publication.
  • Our on-line publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact Sharon Hobrla, shobrla@fs.fed.us if you notice any errors which make this publication unusable.

XML: View XML

Citation:


Tang, Swee May; Gustafson, Eric J. 1997. Perception of scale in forest management planning: Challenges and implications. Landscape and Urban Planning 39 (1997) l-9

 


 [ 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.