Nitrogen Transformations in Stream Sediments : 15N Studies / L. Chatarpaul, JB. Robinson
- Conference Author:
- Methodology for Biomass Determinations and Microbial Activities in Sediments (1978 : Lauderdale, Fla.)
- Physical Description:
- 1 online resource (9 pages) : illustrations, figures, tables
- Additional Creators:
- Chatarpaul, L.
American Society for Testing and Materials
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- Laboratory studies were carried out on sediment samples taken from a perennial stream draining an agronomic watershed. Columns of sediment were placed in acrylic plastic tubes, overlain with isotopically labeled nitrate, and incubated at 15¿̐ưC. An optical emission spectrometer was used to determine the excess 15N in each of the NO3, NH4, and organic nitrogen fractions at various times. It was concluded that the previously observed loss of nitrate from aerated water overlying stream sediment was indeed the result of denitrification. It was also established that nitrification and denitrification were proceeding simultaneously and that less than 2 percent of the added labeled nitrogen was immobilized.
- Dates of Publication and/or Sequential Designation:
- Volume 1979, Issue 673 (January 1979)
- 9780803155497 (e-ISBN)
- Digital File Characteristics:
- text file PDF
- Bibliography Note:
- Includes bibliographical references 17.
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- Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
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- Reproduction Note:
- Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1979. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
- Technical Details:
- Mode of access: World Wide Web.
- Source of Acquisition:
- ASTM International PDF Purchase price USD25.
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