Variation characteristics and influencing factors of base flow in Dongjiang river basin

被引：0
|
作者：
Zhang Y. [1 ,2 ]
Liu Z. [2 ,3 ]
Zhao T. [2 ,3 ]
Liang L. [1 ,2 ]
Gao Y. [1 ,2 ]
Fu H. [1 ,2 ]
机构：
[1] School of Geography and Planning, Sun Yat-sen University, Guangzhou
[2] Center for Water Resource and Environment, Sun Yat-sen University, Guangzhou
[3] School of Civil Engineering, Sun Yat-sen University, Guangzhou
来源：
| 1600年 / Editorial Board of Water Resources Protection卷 / 36期
关键词：
Base flow index; Base flow separation; Characteristics of base flow; Digital filtering method; Dongjiang River Basin; Smoothing minimum method;
D O I：
10.3880/j.issn.1004-6933.2020.04.012
中图分类号：
学科分类号：
摘要：
Based on the measured daily runoff data from 1954 to 2010 at the Boluo Station of the Dongjiang River, the digital filtering method and the smoothing minimum method were used for the base flow separation. The variation characteristics of the base flow and the base flow index at Boluo station were discussed on different time scales, and the influence factors of base flow were analyzed from precipitation and human activities. It was found that the digital filtering method was more suitable than the smooth minimum method in the study area. The annual distribution of the base flow of Boluo Station increased first and then decreased, while the base flow index decreased first and then increased. The average annual base flow and base flow index at Boluo Station showed an increasing trend. The average annual base flow was 414 04 m 3/s, and the average annual base flow index was 0 56. The average base flow index in both dry and partial dry years were 0 55, that in the normal year was 0 57, and that in partial wet and wet years were 0 57 and 0 55, respectively. Precipitation has an interannual impact on the base flow in Dongjiang River Basin. The change of the runoff in different months indicates that the large reservoir is a key factor in the change of the base flow in Dongjiang River Basin. The water regulation of the reservoir makes the base flow increase significantly in the dry season. © 2020, Editorial Board of Water Resources Protection. All rights reserved.
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页码：75 / 81
页数：6
相关论文
共 33 条
  • [1] WANG Dongsheng, YUAN Shutang, YANG Qi, Analysis of hydrological minimum evolution and ecological base flow guarantee in Yunnan area of Jinshajiang River Basin, China [J], Water Resources Protection, 35, 4, pp. 35-41, (2019)
  • [2] CHEN Liqun, LIU Changming, LI Fadong, Review on base flow researches[J], Progress in Geography, 25, 1, pp. 1-15, (2006)
  • [3] HALL F R., Base flow recessions: A review [J], Water. Resources Research, 4, pp. 973-983, (1968)
  • [4] PARTINGTON D, BRUNNER P, SIMMONS C T, Et al., Evaluation of outputs from automated base flow separation methods against simulated base flow from a physically based, surface water-groundwater flow model [J], Journal of Hydrology, 458-459, pp. 28-39, (2012)
  • [5] XU Ronghan, WANG Xiaogang, ZHENG Wei, Research progresses in base flow separation methods [J], Bulletin of Soil and Water Conservation, 36, 5, pp. 352-359, (2016)
  • [6] ARNOLD J G, MUTTIAH R S, SRINIVASAN R, Et al., Regional estimation of base flow and groundwater recharge in the upper Mississippi River Basin [J], Journal of Hydrology, 227, pp. 21-40, (2000)
  • [7] LIU Xinyou, XIE Feifan, Spatial-temporal differentiation of base flow in Nujiang River Basin based on digital filtering method[J], Water Resources Protection, 33, 1, pp. 18-23, (2017)
  • [8] WANG Jinzhe, LIU Zhihui, TASHPOLAT Tiyip, Et al., Variation of the base flow and its causes of Hutubi River[J], Journal of Desert Research, 37, 4, pp. 793-801, (2017)
  • [9] DONG Xiaohua, DENG Xia, BO Huijuan, Et al., A comparison between smoothed minima and digital filtering methods applied to catchment base flow separation [J], Journal of China Three Gorges University (Natural Sciences), 32, 2, pp. 1-4, (2010)
  • [10] SUN Lu, LI Suyun, SUN Lei, Et al., On application of different base flow separation methods in Qinhuai River Basin [J], Journal of Southwest China Normal University (Natural Science Edition), 44, 1, pp. 62-69, (2019)
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