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Concentrations and annual loading of dissolved organic matter in a small moorland stream
Author(s) -
GRIEVE IAN C.
Publication year - 1984
Publication title -
freshwater biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.297
H-Index - 156
eISSN - 1365-2427
pISSN - 0046-5070
DOI - 10.1111/j.1365-2427.1984.tb00173.x
Subject(s) - moorland , dissolved organic carbon , environmental science , hydrology (agriculture) , organic matter , soil water , seasonality , zoology , environmental chemistry , ecology , chemistry , biology , soil science , geology , geotechnical engineering
SUMMARY. 1. Dissolved organic matter (DOM) was measured at 8h intervals over a 1 year period in a stream draining 51 ha of moorland with peaty soils. 2. DOM concentrations increased with increasing stream discharge from low flow values of 0–3 mg 1 −1 to maximum values of 30 mg 1 −1 . There were also seasonal differences of up to 13mgl −1 between August (maximum) and February, and differences of about 2.5 mg l −1 between rising and falling stage samples. 3. Seasonal variation was closely related to mean temperature. 4. Total loss over the year was 168 kg ha −1 DOM (84 kg ha −1 C), larger than previous estimates for upland sites.