Relationship Between Design Flood Peak Discharge and Collecting Area of River Basins in Southwest China

doi:10.11988/ckyyb.20161281

Abstract

Abstract: The lack of flood measurement data due to complex and changeable landform brings about many inconveniences to hydro-project construction in southwest China. According to data of design flood peak discharge (Q_p) and collecting area (F) at 66 hydrologic stations in 11 basins in the southwest region of China, the relationship between Q_pand F is researched by statistical analysis. Results show the Q_p-F relationships in the Jialing River basin, Tuojiang River basin, Fujiang River basin, Minjiang River basin and Lancang River basin follow linear relationship; while in the Dadu River basin, Qingyi River basin and Yalong River basin, the Q_p-F relationships match well with exponential relationship; and in the Jinsha River basin, Nujiang River basin and Yarlung Zangpo River basin the relationships conform well to power function. The research results offer reference for obtaining the Q_p-F relationships in ungauged river basins.

Key words: design flood peak discharge, collecting area of river basin, drainage basins in southwest China, linear relationship, exponential relationship, power functional relationship

CLC Number:

TV121
TV124

YAO Rui-hu, QIN Guang-hua, HE Qing-yan, LI Pin-liang, CAO Ling-ran. Relationship Between Design Flood Peak Discharge and Collecting Area of River Basins in Southwest China[J]. JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI, 2018, 35(5): 37-40.

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Relationship Between Design Flood Peak Discharge and Collecting Area of River Basins in Southwest China

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