The Effects of Rainfall on Carbon Isotopes of POC in the Teshio River, Northern Japan

Bibliographic Data

ID9244602
AuthorsTakafumi Aramaki, Seiya Nagao (0000-0002-1709-9225), Yo-hei Nakamura, Masao Uchida (0000-0002-3496-2772), Yasuyuki Shibata (0000-0001-9160-0017)
Year2010
Volume52
Issue2
Pages808-814
Publication date2010-01-01
Open AccessYes
TypeARTICLE
VenueRadiocarbon (JOURNAL)
Journal identifiersISSN: 0033-8222 • E-ISSN: 1945-5755
PublisherCambridge University Press (CUP) (PUBLISHER)
DOI10.1017/s0033822200045823
OpenAlexW1937612548
LanguageEN
References cited21

During a rainfall event in early September 2006, the transport behavior of particulate organic carbon (POC) in a small river (Teshio River, northern Japan) with alluvial plain and forest characteristics was investigated chiefly with carbon isotopes. The radiocarbon (Δ 14 C value) of POC varied widely from –56%‰ at the beginning of the rain event to –10%‰ at peak rainfall. The Δ 14 C values have a positive correlation with C/N ratios and a negative correlation with Δ 13 C values except for the data from when both turbidity and water level were at their maximums due to rainfall. These results indicate that the sources of organic matter in the river come from the surface layer of soil as the water level rises during a rainfall event

Alluvial plain · Alluvium · Geomorphology · Isotopes of carbon · Radiocarbon dating · Stable isotope ratio · Total organic carbon · δ13C · Chemistry · Environmental Science · Isotope Analysis in Ecology · Marine and coastal ecosystems · Soil and Water Nutrient Dynamics · Environmental Chemistry · Geology

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