Title: The role of floods in particulate organic matter dynamics of a southern Appalachian river-floodplain ecosystem
Author: Neatrour, Mattew A.; Webster, Jackson R.; Benfield, Ernest F.;
Source: J. N. Am. Benthol. Soc., 23(2): 198-213
Publication Series: Miscellaneous Publication
Description: We investigated the etfect of a flood on particulate organic matter (POM) dynamics in the floodplain and active channel of the Little Tennessee River In western North Carolina We measured litterfall, leaf breakdown, and floodplain litter (before and after the flood) at 12 sites Annual litterfall (256-562 g m-2 y-1 ) was typical of a temperate deciduous torest but lower than lowland floodplain forests In the eastern US Leaf breakdown rates of 4 tree species (Acer rubrum, Carpinus caroliniana, Juglans nigra, and Plantaus occidentalis) ranged from 0 001 to 0 010/d We separated the 12 sites into 2 groups (inundated and non-inundated) based on the degree of flooding after a flood on 8 January 1998 and determined POM exchange between the active channel and floodplain. Significant transport of leaves from the floodplain to the river occurred at inundated sites, but transport of herbaceous or woody material did not Occur. The flood Increased leaf breakdown rates of all 4 tree species. Our measurements of littterfall, leaf breakdown, and floodplain litter standing crop suggest that leaves entrained from the floodplain of Little Tennessee River during floods are a source of POM to the actlve channel However, flood Input of leaves to the river were a small source of POM compared to direct leaffall.
Keywords: organic matter dynamics, litterfall, leaf breakdown, particulate organic matter, river, floodplain
- 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.
- 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.)
XML: View XML
Neatrour, Mattew A.; Webster, Jackson R.; Benfield, Ernest F. 2004. The role of floods in particulate organic matter dynamics of a southern Appalachian river-floodplain ecosystem. J. N. Am. Benthol. Soc., 23(2): 198-213
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility