Study of sediment source and fate processes using isotopic tracers in the bluegrass

C. M. Davis, J. F. Fox

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This study examines temporal and spatial variations in sediment organic matter at the watershed scale to better understand organic carbon and nitrogen cycling in-stream in a watershed exhibiting high in-stream storage. Temporally integrated weekly sediment samples were collected at multiple sites within a central Kentucky watershed over a nine-month sampling routine and analyzed for organic tracer distributions including stable carbon and nitrogen isotopes, total organic elemental carbon, total element nitrogen, and the carbon to nitrogen ratio. Results of this study showed distinct seasonal variations in the sediment organic tracers; spatial and hydrologic parameters were not as significant. All of the variations are attributed to microbial cycling of organic matter within temporary in-stream storage zones due to the single primary ex situ erosion source remaining consistent throughout the sampling routine.

Original languageEnglish
Title of host publicationWorld Environmental and Water Resources Congress 2008
Subtitle of host publicationAhupua'a - Proceedings of the World Environmental and Water Resources Congress 2008
DOIs
StatePublished - 2008
EventWorld Environmental and Water Resources Congress 2008: Ahupua'a - Honolulu, HI, United States
Duration: May 12 2008May 16 2008

Publication series

NameWorld Environmental and Water Resources Congress 2008: Ahupua'a - Proceedings of the World Environmental and Water Resources Congress 2008
Volume316

Conference

ConferenceWorld Environmental and Water Resources Congress 2008: Ahupua'a
Country/TerritoryUnited States
CityHonolulu, HI
Period5/12/085/16/08

Keywords

  • Sediment transport
  • Tracers
  • Watersheds

ASJC Scopus subject areas

  • Management, Monitoring, Policy and Law
  • Water Science and Technology
  • Pollution

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