To evaluate site preparation effects on loblolly pine five years after stand establishment in east Texas, trees/acre, d.b.h., total height. and total biomass were measured on four treatments: clear-fell, burn, chop and burn, and shear/pile and disk. Treatment effects on production were not statistically significant (α = 0.1), but two points were evident: (1) more intensively prepared sites had better stem distributions, and (2) the height variation component due to soil was larger than the treatment component. Bulk densities indicated no significant compaction; soil chemical properties for the mechanical treatments were similar to the clear-fell treatment. Foliar and stemwood Ca, Mg, K, P, N were similar for all treatments. Adverse effects of the mechanical methods on site productivity were not evident when compared to the clear-fell treatment.
Document Type: Journal Article
Assistant Professor of Forest Soils, School of Forest Resources, University of Georgia, Athens 30602
Publication date: August 1, 1983
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Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.