Yang, H., Yi, C., Xie, P., Xing, Y. and Ni, L.
Sedimentation rates, nitrogen and phosphorus retentions in the largest urban Lake Donghu, China
Journal of Radioanalytical and Nuclear Chemistry, 267, (1), . (doi:10.1007/s10967-006-0028-6).
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Sediment core samples were collected in the largest urban Lake Donghu (Stations I and II) in China, and the activities of 210Pb, 226Ra and 137Cs were measured by gamma-ray spectrometry. The sedimentation rates, calculated by 210Pb constant rate of supply (CRS) model, ranged from 0.11 to 0.65 (average 0.39) cm. y-1at Station I, and from 0.21 to 0.78 (average 0.46) cm. y-1at Station II. Sedimentation rate calculated by 137Cs as a time marker was 0.55 cm. y-1at Station II. Based on the average sedimentation rate, we obtained 769 and 147 t. y-1for nitrogen and phosphorus retentions in Lake Donghu sediments, respectively.
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