The effect of typhoon induced rainfall on settling fluxes of particles and organic carbon in Yuanyang Lake, subtropical Taiwan |
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| Authors: | Tien-Nan Yang Teh-Quei Lee Philip A. Meyers Cheng-Wei Fan Rou-Fei Chen Kuo-Yen Wei Yue-Gau Chen Jiunn-Tzong Wu |
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| Affiliation: | a Institute of Earth Sciences, Academia Sinica, Taipei 115, Taiwan;b Department of Geological Sciences, The University of Michigan, 2534 CC Little Building, 1100 North University Ave., Ann Arbor, MI 48109-1005, USA;c Department of Earth and Environmental Sciences, National Chung Cheng University, Chia-Yi 621, Taiwan;d Department of Geology, Chinese Culture University, Taipei 111, Taiwan;e Department of Geosciences, National Taiwan University, Taipei 107, Taiwan;f Biodiversity Research Center, Academia Sinica, Taipei 115, Taiwan |
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| Abstract: | A sediment-trap monitoring program measured the fluxes of settling particles and organic carbon in Yuanyang Lake, northern Taiwan, from July 2004 to July 2006 and assessed their relations to the amounts of normal monthly and typhoon-event precipitation. The flux of settling particles varied from 0.7 mg cm?2 month?1 to 14.7 mg cm?2 month?1, and the monthly precipitation ranged from 56 mm to 1218 mm during the survey period. The contributions from typhoon-event precipitation to monthly rainfall amounts were generally larger than 70%. Higher inputs of both particulate and organic carbon into the lake were found during typhoon seasons. Of the annual settling particle loading of 14.9 tons year?1 to the lake floor, 69% occurred during the typhoon months, and 62% of the annual organic carbon loading of 2.3 tons year?1 happened during the typhoon months. These results show the importance of typhoon events on the fluxes of settling particles and organic carbon and their delivery to lakes. |
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| Keywords: | Organic carbon flux Sediment trap Settling particle flux Taiwan Typhoon Yuanyang Lake |
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