Transport of organic carbon from the Mogot Experimental Watershed in the southern mountainous taiga of eastern Siberia | Zendy

Kazuyoshi Suzuki | Zendy; Eiichi Konohira | Zendy; Yusuke Yamazaki | Zendy; Jumpei Kubota | Zendy; Tetsuo Ohata | Zendy; Valery Vuglinsky | Zendy

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Transport of organic carbon from the Mogot Experimental Watershed in the southern mountainous taiga of eastern Siberia

Author(s) -

Kazuyoshi Suzuki,

Eiichi Konohira,

Yusuke Yamazaki,

Jumpei Kubota,

Tetsuo Ohata,

Valery Vuglinsky

Publication year - 2006

Publication title -

hydrology research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.665

H-Index - 48

eISSN - 1996-9694

pISSN - 0029-1277

DOI - 10.2166/nh.2006.015

Subject(s) - surface runoff , permafrost , hydrology (agriculture) , drainage basin , dissolved organic carbon , snowmelt , watershed , total organic carbon , environmental science , taiga , structural basin , boreal , carbon fibers , geology , oceanography , geomorphology , forestry , environmental chemistry , geography , ecology , paleontology , chemistry , materials science , geotechnical engineering , cartography , machine learning , composite number , computer science , composite material , biology

More than 60% of river runoff from the Lena River basin originates in the southern mountainous region of eastern Siberia within the permafrost zone. We studied the transport of dissolved organic carbon (DOC) and particulate organic carbon (POC) within the Mogot Experimental Watershed, which is close to the drainage divide between the Lena and Amur River basins in the southern mountainous taiga region, from 1 August 2000 to 12 November 2001. DOC concentration was strongly related to thawing depth at the bottom of the main valley when thawing depth was less than 20cm during snowmelt runoff. When thawing depth was equal to or greater than 20cm, DOC concentration was more closely related to the rate of river discharge in summer runoff. On the basis of our observations, we extrapolated the annual transport of DOC and POC to be 4.75gCm22yr21 and 0.03CkgCm22yr21, respectively. Transport of organic carbon from the catchment was about 4.78gCm22yr21 during 2001. DOC is the main form of organic carbon flux in the study area.

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