You are here: Home
/ Publication Information
Title: Belowground Processes in Nitrogen Fertilized Cottonwood and Loblolly Pine Plantations
Author: Lee, Kye-Han; Jose, Shibu;
Source: Gen. Tech. Rep. SRS–71. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 446-449
Publication Series: Miscellaneous Publication
Description: We measured soil respiration, fine root biomass production, and microbial biomass along a fertilization gradient (0, 56, 112, and 224 kg N ha-1 per year) in 7-year-old cottonwood and loblolly pine plantations, established on a well-drained, Redbay sandy loam (a fine-loamy, siliceous, thermic Rhodic Paleudlt), in northwest Florida. Annual soil respiration rate was significantly greater in cottonwood (781 g C m-2 per year) than in loblolly pine (692 g C m-2 per year). Nitrogen (N) fertilization had a significant negative effect on soil respiration in cottonwood, but no effect was observed in loblolly pine stands. Annual fine root production was significantly greater in cottonwood (221 g m-2 per year) than that in loblolly pine (144 g m-2 per year) without N fertilization effect. Microbial biomass, however, was reduced by N fertilization in both species. These results suggest that belowground responses to fertilization can vary widely between conifers and hardwoods.
- 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 firstname.lastname@example.org to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
XML: View XML
Lee, Kye-Han; Jose, Shibu 2004. Belowground Processes in Nitrogen Fertilized Cottonwood and Loblolly Pine Plantations. Gen. Tech. Rep. SRS–71. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 446-449
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility