Skip to Main Content
Effects of fertilization on CO2 efflux in a two-year-old loblolly pine stand on the Virginia PiedmontAuthor(s): Michael Tyree; John Seiler; Thomas R. Fox
Source: Gen. Tech. Rep. SRS-92. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 117-120
Publication Series: Miscellaneous Publication
PDF: Download Publication (285 KB)
DescriptionFertilization is becoming a common, cost effective treatment within managed forests of the Southeastern United States. However, there is little known about how fertilization will affect the belowground processes that drive soil CO22 efflux and heterotrophic respiration. Respiratory components were measured prior to fertilization, weekly following fertilization, and bi-weekly after respiratory components stabilized. We found that total soil CO2 efflux did not differ consistently between fertilized and unfertilized plots over the 8 months. Heterotrophic respiration was significantly (P<0.0001) lower in fertilized plots starting from 8 days after fertilization throughout the duration of the study. We hypothesize that a corresponding increase in root respiration is offsetting any decrease due to microbial suppression.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- 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.
CitationTyree, Michael; Seiler, John; Fox, Thomas R. 2006. Effects of fertilization on CO2 efflux in a two-year-old loblolly pine stand on the Virginia Piedmont. Gen. Tech. Rep. SRS-92. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 117-120
- Physiological girdling of pine trees via phloem chilling: proof of concept
- Interpretation and evaluation of combined measurement techniques for soil CO2 efflux: Discrete surface chambers and continuous soil CO2 concentration probes
- Trenching reduces soil heterotrophic activity in a loblolly pine (Pinus taeda) forest exposed to elevated atmospheric [CO2] and N fertilization
XML: View XML