Skip to Main Content
Effect of vegetative competition on the moisture and nutrient status of loblolly pineAuthor(s): G.A. Carter; J.H. Miller; D.E. Davis; R.M. Patterson
Source: Canadian Journal of Forest Research. 14(1): 1-9.
Publication Series: Miscellaneous Publication
PDF: Download Publication (458 KB)
DescriptionA field study examined the effects of competing vegetation on the moisture and nutrient status of 5-year-old loblolly pines (Pinus taeda L.). Similar experiments were conducted on a Piedmont site and a Coastal Plain site using individual pines as experimental units. Predawn measurements of xylem pressure potential were made using detached needle fascicles.and nutrient concentrations in soil and foliage samples were determined monthly. This study was conducted during the 3rd year of a relatively dry 3-year period. On the Piedmont site, elimination of all competing vegetation within 1.5 m of the pines significantly lowered moisture stress when compared with the no-elimination treatment; on the Ccastal Plainee site, differences were significant on only half of the assay dates. Removing only arborescent vegetation on the Piedmont site reduced pine water stress one-half as much as removing all vegetation, but on the Coastal Plain site this reduction was about two-thirds of that found following removal of all vegetation. As drought length increased. stress increased, regardless of treatmemt. Higher levels of competing vegetation significantly reduced available potassium, calcium. magnesium. and manganese concentrations the loamy sand of the Coastal Plain site. but only potassium was reduced on the Piedmont. None of the treatments significantly affected foliar nutrients at either site.
- 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.
CitationCarter, G.A.; Miller, J.H.; Davis, D.E.; Patterson, R.M. 1984. Effect of vegetative competition on the moisture and nutrient status of loblolly pine. Canadian Journal of Forest Research. 14(1): 1-9.
- Control of Dogfennel (Eupaforium Capillifolium (Lam.) Small) Does Not Increase Loblolly Pine Yields
Survival and growth of young southern pine after simulated crown scorch
- Impacts of intensive forestry on early rotation trends in site carbon pools in the southeastern US
XML: View XML