Skip to Main Content
Modeling in-situ pine root decomposition using data from a 60-year chronosequenceAuthor(s): Kim H. Ludovici; Stanley J. Zarnoch; Daniel D. Richter
Source: Can. J. For. Res. 32: 1675-1684 (2002)
Publication Series: Miscellaneous Publication
PDF: Download Publication (8.3 MB)
DescriptionBecause the root system of a mature pine tree typically accounts for 20-30% of the total tree biomass, decomposition of large lateral roots and taproots following forest harvest and re-establishment potentially impact nutrient supply and carbon sequestration in pine systems over several decades. If the relationship between stump diameter and decomposition of taproot and lateral root material, i.e., wood and bark, can be quantified, a better understanding of rates and patterns of sequestration and nutrient release can also be developed. This study estimated decomposition rates from in-situ root systems using a chronosequence approach. Nine stands of 55- to 60-year-old loblolly pine (Pinus taeda L.) that had been clear-cut 0, 5, 10, 20, 25, 35, 45, 55, and 60 years ago were identified on well-drained Piedmont soils. Taproot and lateral root systems were excavated, measured, and weighed. Although more than 50% of the total root mass decomposed during the first 10 years after harvest, field excavations recovered portions of large lateral roots (>5 cm diameter) and taproots that persisted for more than 35 and 60 years, respectively. Results indicate that decomposition of total root biomass, and its component parts, from mature, clear-cut loblolly pine stands, can be modeled with good precision as a function of groundline stump diameter and years since harvest.
- 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.)
- 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.
CitationLudovici, Kim H.; Zarnoch, Stanley J.; Richter, Daniel D. 2002. Modeling in-situ pine root decomposition using data from a 60-year chronosequence. Can. J. For. Res. 32: 1675-1684 (2002)
- Predicting longleaf pine coarse root decomposition in the southeastern US
- Surface-based GPR underestimates below-stump root biomass
- Immature Loblolly Pine Growth and Biomass Accumulation: Correlations with Seedlings Initial First-Order Lateral Roots
XML: View XML