Skip to Main Content
Cogongrass ( Imperata cylindrica ) affects above- and belowground processes in commercial loblolly pine ( Pinus taeda ) standsAuthor(s): Adam N. Trautwig; Lori G. Eckhardt; Nancy J. Loewenstein; Jason D. Hoeksema; Emily A. Carter; Ryan L. Nadel
Source: Forest Science
Publication Series: Scientific Journal (JRNL)
Station: Southern Research Station
Download Publication (617.0 KB)
DescriptionCogongrass (Imperata cylindrica), an invasive grass species native to Asia, has been shown to reduce tree vigor in loblolly pine (Pinus taeda) plantations, which comprise more than 50% of growing stock in commercial forests of the United States. I. cylindrica produces exudates with possible allelopathic effects that may influence abundance of P. taeda symbionts, such as soil microbes and ectomycorrhizal fungi. Soil microbial communities and root colonization by mycorrhizal fungi were sampled in intensively managed P. taeda stands in Greene County, Mississippi, in I. cylindrica present and absent plots. I. cylindrica present plots had reduced abundance of ectomycorrhizal colonization of pine fine feeder roots in the top 40 cm of soil in comparison to I. cylindrica absent plots. Abundance of pine fine feeder roots in the 21–40 cm and 41–60 cm layers of the soil profile was also reduced in I. cylindrica present plots. Vegetative diversity was negatively correlated with I. cylindrica (% cover), which probably contributed to the reduced microbial diversity in I. cylindrica present plots. Because of the variety of roles microorganisms play, changes associated with the invasion of I. cylindrica are likely to alter nutrient cycling and reduce site productivity.
- 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.
CitationTrautwig, Adam N.; Eckhardt, Lori G.; Loewenstein, Nancy J.; Hoeksema, Jason D.; Carter, Emily A.; Nadel, Ryan L. 2017. Cogongrass ( Imperata cylindrica ) affects above- and belowground processes in commercial loblolly pine ( Pinus taeda ) stands . Forest Science. 63(1): 10-16. https://doi.org/10.5849/forsci.16-016.
Keywordsectomycorrhizal fungi, allelopathy, vegetation
- Response of twelve florida cogongrass (imperata cylindrica ) populations to herbicide treatment
- Biology and control of cogongrass (Imperata cylindrica) in southern forests
- Refining rates and treatment sequences for cogongrass (Imperata Cylindrica) control with imazapyr and glyphosate
XML: View XML