The effect of typhoon induced rainfall on settling fluxes of particles and organic carbon in Yuanyang Lake, subtropical Taiwan
Journal
Journal of Asian Earth Sciences
Journal Volume
40
Journal Issue
6
Pages
1171-1179
Date Issued
2011
Author(s)
Yang, Tien-Nan
Lee, Teh-Quei
Meyers, Philip A.
Fan, Cheng-Wei
Chen, Rou-Fei
Wu, Jiunn-Tzong
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 0.7mgcm-2month-1 to 14.7mgcm-2month-1, and the monthly precipitation ranged from 56mm to 1218mm 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 14.9tonsyear-1 to the lake floor, 69% occurred during the typhoon months, and 62% of the annual organic carbon loading of 2.3tonsyear-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. © 2010 Elsevier Ltd.
SDGs
Type
journal article