Effects of timber harvest and periodic fire on soil chemical properties in the Ouachita Mountains
Masters, R.E. ; Engle, D.M. ; Robinson, R.
Soil chemical properties on mountainous terrain in oak-pine forests of southeastern Oklahoma changed following timber harvest and prescribed fire. Differences were related to residual stand characteristics, prescribed fire regimen, and vegetation change following site perturbation. Available NO3-N, Ca, and P significantly increased on harvested and burned sites, and on clearcut, windrowed, and summer burned sites compared to untreated sites. Nitrate levels were statistically unrelated to a 2,690% increase (7 to 190 lb/ac) in legume standing crop across site treatments. Nitrate levels were low, and these sites may be nitrogen limited. No increase was found in soil pH. Effects of burning harvested sites on most soil chemical properties generally persisted less than 2 yr. A timber harvest-fire interaction on levels of available K and Mg was evident 4 yr posttreatment. Timber harvest, periodic prescribed fire, and subsequent plant succession redirected nutrient cycling pathways and enhanced soil nutrient levels. Enhanced nutrient regimes are ecologically advantageous for stand reinitiation and recovery following site perturbation or natural disturbance. © Society of American Foresters, Bethesda, MD. Abstract reproduced by permission.
Masters, R. E., D. M. Engle, and R. Robinson. 1993. Effects of timber harvest and periodic fire on soil chemical properties in the Ouachita Mountains. Southern Journal of Applied Forestry, v. 17, no. 3, p. 139-145.
abstract okay; Andropogon gerardii; Arkansas; calcium; Carex; Carya tomentosa; clearcutting; coastal plain; decay; disturbance; fire effects; fire exclusion; fire frequency; fire intensity; forbs; forest management; grasses; Helianthus; herbaceous vegetation; legumes; litter; logging; magnesium; minerals; mountainous terrain; mountains; nitrogen; North America; nutrient cycling; Oklahoma; Ouachita Mountains; overstory; Panicum; pH; phosphorus; pine hardwood forests; Pinus echinata; pioneer species; plant growth; potassium; prescribed fires; Quercus marilandica; Quercus stellata; Rhus copallinum; runoff; Schizachyrium scoparium; season of fire; site treatments; sloping terrain; Smilax; soil leaching; soil nutrients; Solidago; Sorghastrum nutans; south central states; south eastern states; stand characteristics; succession; thinning; Ulmus alata; understory vegetation; USA; Vaccinium arboreum; wildfires; wildlife management
International; Rocky Mountain; Southern
Aquatic; Fire Behavior; Fire Ecology; Fire Effects; Fire Occurrence; Fuels; Prescribed Fire
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August 21, 2015
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