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 (404 KB)

Title: Release of nitrogen and phosphorus from loblolly pine forest floor in a post-harvest microclimate

Author: Kiser, L. Chris; Fox, Thomas R.;

Date: 2012

Source: In: Butnor, John R., ed. 2012. Proceedings of the 16th biennial southern silvicultural research conference. e-Gen. Tech. Rep. SRS-156. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 171-172.

Publication Series: Paper (invited, offered, keynote)

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

Description: Loblolly pine (Pinus taeda L.) plantations grown on nutrient deficient soils in the southeastern U.S. require nitrogen (N) and phosphorus (P) fertilization to increase growth (Albaugh et al., 2007; Fox et al., 2007). Fertilization increases growth by increasing foliar nutrients and leaf area (Albaugh et al., 1998) which also results in higher litterfall mass. Nutrients sequestered in foliage eventually accumulate in the forest floor. As a loblolly pine stand ages forest floor mass increases (Switzer and Nelson, 1972). Nitrogen and P content also increase (Switzer and Nelson, 1972) due to an accumulation of N and P as the litter decomposes (Piatek and Allen, 2001; Sanchez, 2001) suggesting a forest floor sink. In fertilized systems, the forest floor sink is magnified due to higher inputs from litterfall and increased foliar N and P concentrations (Will et al., 2006). When a stand is harvested, forest floor decomposition increases due to changes in environmental conditions. Since next rotation seedling nutrient demand is not great enough to capture nutrient released through forest floor decomposition (Fox et al., 2007), a significant amount of site nutrient capital could be lost. Our objectives were to: (1) determine whether fertilization results in a forest floor N and P sink and (2) quantify N and P release from decomposing forest floor material in a post-harvest microclimate.

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:


Kiser, L. Chris; Fox, Thomas R. 2012. Release of nitrogen and phosphorus from loblolly pine forest floor in a post-harvest microclimate. In: Butnor, John R., ed. 2012. Proceedings of the 16th biennial southern silvicultural research conference. e-Gen. Tech. Rep. SRS-156. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 171-172.

 


 [ 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.