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 (1.7 MB bytes)

Title: Acorn Production Characteristics of Southern Appalachian Oaks: A Simple Method to Predict Within-Year Crop Size

Author: Greenberg, Cathryn H.; Parresol, Bernard R.;

Date: 2000

Source: Res. Pap. SRS-20.Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 16 p.

Publication Series: Research Paper (RP)

Description: We examined acorn production from 1993-97 by black oak (Quercus velutina Lam.), northern red oak (Q. rubra L.), scarlet oak (Q. coccinea Muenchh.), chestnut oak (Q. prinus L.), and white oak (Q. alba L.) in the Southern Appalichians to determine how frequency of acorn production, levels of intraspecific synchrony, and acorn density per tree influence crop size. We then developed a linear regression model for each species to quantitatively estimate acorn crop size within years using the proportion of trees bearing acorns as the independent variable. We also developed acorn yield tables for each species. Using these equations, land managers can quantitatively estimate within-year crop size per species if they know the proportion of fruiting trees as estimated by simple visual surveys (presence or absence of acorns or both). By applying the estimate (in units of number per square meter basal area) for each species to a basal area inventory of oaks in their area, managers can tail within-year crop size estimates to specific land management units. Alternatively, acorn yield tables can be applied to oak basal area inventories to tailor estimates of acorn production (the sum of each species) on an average annual basis to any area. Yield tables also can be used to test how acorn production will be affected on an average annual basis using different basal area apportionment scenarios among oak species.

Keywords: Acorn production, hard mast, masting, oak, predicting acorn crop size, reduced major axis regression, Southern Appalachian oaks, visual acorn surveys

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:


Greenberg, Cathryn H.; Parresol, Bernard R. 2000. Acorn Production Characteristics of Southern Appalachian Oaks: A Simple Method to Predict Within-Year Crop Size. Res. Pap. SRS-20.Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 16 p.

 


 [ 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.