Title: Improving Estimates of Acceptable Growiing Stock in Young Upland Oak Forests in the Missouri Ozarks
Author: Dey, Daniel C.; Johnson, Paul S.; Garrett, H.E.;
Source: North J. Appl. For. Vol. 15 no. 1.:p. 28-32. (1998)
Publication Series: Scientific Journal (JRNL)
Description: Estimates of regeneration or growing stock in young oak forests may be too high unless criteria are established that define explicitly acceptable growing stock. In young hardwood stands, crown class can be used to identify acceptable growing stock because it is related to the future growth and survival of reproduction. A method is presented for assigning crown class categories to hardwood stems based on their diameters (dbh). Young upland oak forests originating from clearcuts in the Missouri Ozarks were sampled to determine the relationship between dbh and crown class. Stands were 19 to 25 yr old. Threshold diameters (TD) separating one crown class category from another were determined using regression analyses. TD was not significantly affected by species group, and in some cases by aspect and slope position. Quadratic mean stand diameter (QMSD) was significantly related to TD. As QMSD increased so did TD. When QMSD equals 3 in., trees with dbh >_3.9 in. are allocated to the codominant and dominant crown class category, and those >_2.5 in. to the dominant, codominant, and intermediate category. TD can be used to assign a crown class category to individual trees, thereby improving estimations of acceptable growing stock. By this method, crown class can be used to define acceptable growing stock and evaluate stocking, yet it does not have to be measured in stand inventories.
Keywords: Missouri Ozarks, growing stocks, Oak forest, QMSD, trees, Dominant trees, Codonminant trees, Intermediate trees, Overtopped trees
- 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, firstname.lastname@example.org if you notice any errors which make this publication unusable.
XML: View XML
Dey, Daniel C.; Johnson, Paul S.; Garrett, H.E. 1998. Improving Estimates of Acceptable Growiing Stock in Young Upland Oak Forests in the Missouri Ozarks. North J. Appl. For. Vol. 15 no. 1.:p. 28-32. (1998)
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility