Skip to Main Content
Geomorphic Influences on Large Wood Dam Loadings, Particulate Organic Matter and Dissolved Organic Carbon in an 0ld-Growth Northern Hardwood WatershedAuthor(s): P. Charles Goebel; Kurt S. Pregitzer; Brain J. Palik
Source: Journal of Freshwater Ecology 18(3):479-490
Publication Series: Scientific Journal (JRNL)
Station: North Central Research Station
PDF: Download Publication (1.27 MB)
DescriptionWe quantified large wood loadings and seasonal concentrations of particulate organic matter (POM) and dissolved organic carbon (DOC) in three different geomonghic zones (each with unique hydrogeomorphic characteristics) of a pristine, old-growth northern hardwood watershed. The highest large wood dam loadings were in the high-gradient, bedrock controlled geomorphic type characterized by a cascading and step pool stream channel (19 dams km-1), while the lowest loadings were in the low-gradient, bedrock controlled geomorphic type (5 dams km-1). POM and DOC concentrations varied seasonally and were generally significantly correlated with discharge before and following leaf-off (mid to late September). The highest concentrations of POM were in the wetland dominated, low-gradient, bedrock controlled geomorphic type (3.74 mg L-1, while the highest DOC concentrations were in the high gradient, bedrock controlled geomorphic type following leaf-off (14.55 mg L-1). Our results suggest that organic matter dynamics vary both spatially and temporally in a watershed in response to changes in hydrogeomorphic conditions, and the processing of different types of organic matter may be intimately linked, resulting in the significant differences in how organic matter is processed and utilized in stream ecosystems flowing through forested watersheds.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- 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.
CitationGoebel, P. Charles; Pregitzer, Kurt S.; Palik, Brain J. 2003. Geomorphic Influences on Large Wood Dam Loadings, Particulate Organic Matter and Dissolved Organic Carbon in an 0ld-Growth Northern Hardwood Watershed. Journal of Freshwater Ecology 18(3):479-490
- Flushing of distal hillslopes as an alternative source of stream dissolved organic carbon in a headwater catchment
- Optical in-situ sensors capture dissolved organic carbon (DOC) dynamics after prescribed fire in high-DOC forest watersheds
- Bioavailability and export of dissolved organic matter from a tropical river during base- and stormflow conditions
XML: View XML