Article
 

Short and long-term effects of prescribed underburning on nitrogen availability in ponderosa pine stands in central Oregon

Öffentlich Deposited

Herunterladbarer Inhalt

PDF Herunterladen
https://ir.library.oregonstate.edu/concern/articles/zk51vh30x

Descriptions

Attribute NameValues
Creator
Abstract
  • The effects of prescribed underburning on soil total C pools, total and inorganic N pools, and in situ net N mineralization were examined during a 1-year study in ponderosa pine (Pinus ponderosa Dougl. ex P. & C. Laws.) sites that had been experimentally burned 4 months, 5 years, or 12 years earlier. At the sites burned 4 months previously, total C concentration and inorganic N concentration increased significantly (p < 0.1) after prescribed burning, compared with unburned controls. However, inorganic N concentration declined during the 1-year duration of this study to reach the levels of the control plots at the end of the second growing season. At the site burned 5 years previously, total C and N concentrations, inorganic N concentration, and net N mineralization decreased significantly after prescribed burning. At the sites burned 12 years previously, N and C pools were not affected, but net N mineralization decreased significantly after burning. The decrease in net N mineralization is likely caused by a decrease in substrate quantity 5 years after burning, and by changes in substrate quality 12 years after burning. A long-term decrease in net N mineralization in the N-poor ponderosa pine stands of central Oregon may result in a decrease in long-term site productivity and may explain the observed pattern of long-term decrease in stand growth after prescribed burning.
  • Keywords: mineralization, inorganic nitrogen, ponderosa pine (Pinus ponderosa), underburning, soil nitrogen, prescribed fire, soil carbon pools
Resource Type
DOI
Date Available
Date Issued
Citation
  • Monleon, V.J., K. Cromack, Jr., and J.D. Landsberg. 1997. Short and long-term effects of prescribed underburning on nitrogen availability in ponderosa pine stands in central Oregon. Canadian Journal of Forest Research 27(2): 369-378.
Journal Title
Journal Volume
  • 27
Journal Issue/Number
  • 3
Academic Affiliation
Urheberrechts-Erklärung
Publisher
Peer Reviewed
Language
Replaces

Beziehungen

Parents:

This work has no parents.

Artikel

Miniaturansicht Titel Hochladedatum Sichtbarkeit Aktionen
file details Monleon_etal97.pdf 2017-07-06 Öffentlich Herunterladen
file details Monleon_etal97.pdf 2017-07-06 Öffentlich Herunterladen