Skip to Main Content
The Effect of Large Applications of Nutrients From Organic Waste on Biomass Allocation and Allometric Relations in Loblolly PineAuthor(s): Scott D. Roberts; Patrick D. Gerard
Source: Gen. Tech. Rep. SRS–71. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 398-402
Publication Series: Miscellaneous Publication
PDF: View PDF (283 KB)
DescriptionWe applied broiler litter to an 8-year-old precommercially thinned loblolly pine (Pinus taeda L.) stand at 0, 5.6, and 23 Mg ha-1 , supplying 0, 200, and 800 kg N ha-1. A destructive harvest was implemented two growing seasons following litter application to evaluate treatment impacts on patterns of aboveground biomass allocation and to develop allometric functions enabling prediction of aboveground biomass components. We examined relative allocation to foliage, crown wood, and stemwood; and the proportion of current-year and second-year foliage in the upper vs. the lower crown. No treatment effects were observed in general allocation patterns between foliage, crown wood, and stemwood mass, although treatments did significantly increase the ratio of current-year to second-year foliage in the upper crown. Biomass allocation patterns within trees did vary with tree size. The ratio of foliage to woody biomass remained similar across the range of tree sizes examined; but within the woody component, the amount of crown wood relative to stemwood increased with tree size. The ratio of current-year to second-year foliage remained similar in the lower crown, but the proportion of second-year foliage in the upper crown increased with d.b.h. Statistically significant treatment differences were found in the allometric relationships for estimating stemwood, crown wood, and foliar biomass. In all cases, litter application treatments increased the slope of the relationship between the aboveground biomass component and tree size. Our results suggest that failure to account for treatment-related effects on tree allometry could result in estimation errors of 5-15 percent for individual aboveground biomass components.
- 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.)
CitationRoberts, Scott D.; Friend, Alexander L.; Gerard, Patrick D. 2004. The Effect of Large Applications of Nutrients From Organic Waste on Biomass Allocation and Allometric Relations in Loblolly Pine. Gen. Tech. Rep. SRS–71. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 398-402
- Family Differences in Aboveground Biomass Allocation in Loblolly Pine
- Comparison of Growth Efficiency of Mature Longleaf and Slash Pine Trees
- Biomass estimates of small diameter planted and natural-origin loblolly pines show major departures from the National Biomass Estimator equations
XML: View XML