Skip to Main Content
Soil properties in fire-consumed log burnout openings in a Missouri oak savannaAuthor(s): Charles C. Rhoades; A. J. Meier; A. J. Rebertus
Source: Forest ecology and management. 192(2/3): 277-284
Publication Series: Miscellaneous Publication
PDF: Download Publication (228 KB)
DescriptionDowned logs are known to increase species diversity in many forest ecosystems by increasing resource and structural complexity and by altering fire behavior in fire-prone ecosystems. In a frequently burned oak savanna in central Missouri, combustion of downed logs formed patches that have remained free of herbaceous vegetation for more than 3 years. To assess the influence of "log burnouts" on soil conditions we compared soil chemical, biological and physical properties in log burnout zones and beneath surrounding herbaceous vegetation. Soil pH and extractable soil NO3−, P, K+ and Ca2+ were all higher in the log burnouts compared to adjacent soil. There was no difference in total soil N or extractable NH4+. An index of plant N availability was lower and the soil C:N ratio was higher in the burnout patches, though the magnitudes of these reductions do not explain the persistence of the bare patches. We suspect that following log combustion degraded soil aggregate structure and decreased soil porosity alters soil water availability and restricts plant colonization into the log burnouts areas. The modified soil conditions associated with fire-consumed coarse woody debris may have a long-term influence on herbaceous species diversity and spatial distribution in fire-maintained oak savannas.
- 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.
CitationRhoades, Charles C.; Meier, A. J.; Rebertus, A. J. 2004. Soil properties in fire-consumed log burnout openings in a Missouri oak savanna. Forest ecology and management. 192(2/3): 277-284
Keywordscoarse woody debris, soil nitrogen cycling, fire behavior, prescribed fire, Missouri Ozarks
- Community-Level Impacts of Management and Disturbance in Western Michigan Oak Savannas
- Vegetative characteristics of oak savannas in the southwestern United States: a comparative analysis with oak woodlands in the region
- Fire effects on herbaceous plants and shrubs in the oak savannas of the Southwestern Borderlands
XML: View XML