Title: Aspen ecosystems: Objectives for sustaining biodiversity
Author: Campbell, Robert B.; Bartos, Dale L.
Source: In: Shepperd, Wayne D.; Binkley, Dan; Bartos, Dale L.; Stohlgren, Thomas J.; Eskew, Lane G., comps. Sustaining aspen in western landscapes: Symposium proceedings; 13-15 June 2000; Grand Junction, CO. Proceedings RMRS-P-18. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 299-310.
Description: Recognizing the historical abundance of major vegetation cover types is the foundation for estimating the magnitude and significance of conversion from one cover type to another and the proportion of existing cover types that are in properly functioning condition. Techniques to determine desired conditions are discussed. Existing situations for the need to treat ecosystems where aspen (Populus tremuloides Michx.) occur are prioritized: highest - mixed-conifer with aspen but where conifers comprise greater than 50% of the canopy; high - aspen/sagebrush transition; and moderate - aspen dominated landscapes. Though aspen stands are evaluated, aspen landscapes are discussed in the context of aggregations of many stands. Within aspen dominated landscapes, five risk factors help determine the need for action: (1) conifer understory and overstory cover is greater than 25%; (2) aspen regeneration (5-15 feet tall) is less than 500 stems/acre; (3) aspen canopy cover is less than 40%; (4) dominant aspen trees are greater than 100 years old; and (5) sagebrush cover is greater than 10%. Management recommendations for treatments, as well as examples of successes and failures of efforts to restore aspen ecosystems, are summarized. Actions to restore aspen ecosystems must not be taken before excessive browsing by livestock and wildlife is addressed.
Keywords: ecosystem management, ecosystem research, sustainable forests, quaking aspen, Populus tremuloides
View or Print this Publication (134 KB)
- 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 firstname.lastname@example.org to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
Campbell, Robert B.; Bartos, Dale L. 2001. Aspen ecosystems: Objectives for sustaining biodiversity. In: Shepperd, Wayne D.; Binkley, Dan; Bartos, Dale L.; Stohlgren, Thomas J.; Eskew, Lane G., comps. Sustaining aspen in western landscapes: Symposium proceedings; 13-15 June 2000; Grand Junction, CO. Proceedings RMRS-P-18. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 299-310.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility