Journalartikel

Jahr der Veröffentlichung: 2006

Seiten: 511-523

Zeitschrift: Journal of Hydrology

Bandnummer: 331

Heftnummer: 3-4

ISSN: 0022-1694

eISSN: 1879-2707

DOI Link: https://doi.org/10.1016/j.jhydrol.2006.05.036

Verlag: Elsevier

Abstract: 
Annual. runoff and annual suspended sediment toads of hydrological gauging stations along the mainstream of the Yangtze River basin (Pingshan station, Yichang station, Hankou station and Datong station) and main tributaries (Beipei station in Jialingjiang River, Wulong station in Wujiang River and Huangzhuang station in Hanjiang River) were analyzed with the help of Mann-Kendall. trend analysis and linear regression analysis. Research results indicate that (1) changing patterns of runoff and sediment toads are different in different parts of the Yangtze River basin. No significant trend is detected for annual runoff at all stations at > 95% confidence level. Changes of sediment toads, however, demonstrate different pictures in the Yangtze River basin. The sediment toads are in increasing trend in Pingshan station- the most upstream station on the Yangtze River basin (this increasing trend is significant at > 95% confidence level. after about 1990), but are in decreasing trend at other stations (including stations in the tributaries studied in this paper). This decreasing trend becomes more obvious from Yichang station to Datong station. (2) Water reservoirs exerted more influences on changes of sediment toads than on runoff, which is the main reason for the decreasing trend of sediment toads found in most stations. (3) Influences of water reservoirs on sediment toads are more obvious in the tributaries than in the mainstream of the Yangtze River basin, while in the mainstream the variation patterns of sediment toads are determined by multiple factors. (c) 2006 Elsevier B.V. All rights reserved.

Harvard-Zitierstil: Zhang, Q., Xu, C., Becker, S. and Jiang, T. (2006) Sediment and runoff changes in the Yangtze River basin during past 50 years, Journal of Hydrology, 331(3-4), pp. 511-523. https://doi.org/10.1016/j.jhydrol.2006.05.036

APA-Zitierstil: Zhang, Q., Xu, C., Becker, S., & Jiang, T. (2006). Sediment and runoff changes in the Yangtze River basin during past 50 years. Journal of Hydrology. 331(3-4), 511-523. https://doi.org/10.1016/j.jhydrol.2006.05.036