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 (288 KB bytes)

Title: A new type of density-management diagram for slash pine plantations

Author: VanderSchaaf, Curtis L.;

Date: 2006

Source: Gen. Tech. Rep. SRS-92. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 375-378

Publication Series: Miscellaneous Publication

   Note: This article is part of a larger document. View the larger document

Description: Many Density-Management Diagrams (DMD) have been developed for conifer species throughout the world based on stand density index (SDI). The diagrams often plot the logarithm of average tree size (volume, weight, or quadratic mean diameter) over the logarithm of trees per unit area. A new type of DMD is presented for slash pine (Pinus elliottii var elliottii) plantations where SDI is plotted over age. This proposed DMD eliminates two existing problems with current DMDs: (1) the need to estimate age from other measures found on traditional DMDs, and (2) a second variable also directly dependent on either age or SDI can be placed on a third axis. Plotting SDI over age clearly shows when thinnings need to be conducted to obtain a certain tree size-density objective both in terms of stand density and age. Yet this proposed DMD does not violate the well-known principle that DMDs are independent of age. Understory models are usually developed using an overstory density measure that includes both trees per unit area and a diameter measure (i.e. basal area per unit area or SDI per unit area) making it difficult to include them on current DMDs. Plotting SDI over age allows understory vegetation development to be easily included on a DMD. This provides a natural resource manager the ability to see what impacts a particular tree sizedensity objective has on understory vegetation production over time. An understory vegetation model was developed to demonstrate the applicability of the proposed DMD.

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:


VanderSchaaf, Curtis L. 2006. A new type of density-management diagram for slash pine plantations. Gen. Tech. Rep. SRS-92. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 375-378

 


 [ 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.