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 (764 KB bytes)

Title: The influence of environmental, soil carbon, root, and stand characteristics on soil C02 efflux in loblolly pine (Pinus taeda L.) plantations located on the South Carolina Coastal Plain

Author: Gough, Christopher M.; Seiler, John R.;

Date: 2004

Source: Forest Ecology and Management 191(2004) 353-363

Publication Series: Miscellaneous Publication

Description: While the effect of soil temperature and rnoisture on soil C02 efflux (Ec) has becn widely investigated, the relationship between Ec and soil carbon (C). root, and stand parameters has not been comprehensively examined or quantified across extensive spatial and temporal scales. Wle measured Ec in loblolly pine (Pinus taeda L.) stands located on the South Carolina Coastal Plain across sites, seasons, and ages. Concurrent with Ec measurements, we monitored soil temperature (top 10 cm) and soil moisture (top 10 cm) along with mineral soil C concentration [C], coarse woody debris (CWD), root surface area, and root volume in the top 20 cm of the mineral soil below the measurement chamber. We also examined the effects of stand age, stand volume, and site quality on Ec. Using linear regression analysis, we determined that Ec was most highly correlated with soil temperature alone (R2 = 0.263). Mineral soil [C] alone explained a small, but significant amount of Ec variance (R2 = 0.026). When all variables were considered simultaneously, only soil temperature (R2 = 0.240), mineral soil C (R2 = 0.0378), and root surface area (R2 = 0.0149) explained a significant amount of variance in Ec. Other variables tested were not significantly correlated with Ec. Mineral soil C concentration was greater in samples taken directly adjacent to trees (on beds) compared with samples between rows (interbeds), which partially explained why we observed greater Ec rates next to trees. With increasing stand age, CWD decreased and root surface area increased suggesting that opposite shifts in total root and microbial respiration over time are responsible for the lack of correlation between Ec and stand age.

Keywords: Soil CO2 efflux, soil respiration, loblolly pine, Pinus taeda, stand age, soil temperature, carbon, roots, coarse woody debris

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:


Gough, Christopher M.; Seiler, John R. 2004. The influence of environmental, soil carbon, root, and stand characteristics on soil C02 efflux in loblolly pine (Pinus taeda L.) plantations located on the South Carolina Coastal Plain. Forest Ecology and Management 191(2004) 353-363

 


 [ 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.