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Study on Base-flow Evolution Law and Its Causes of Qinghai Lake Basin
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Hai-juan JI1, 2, Xiao-dong LI1, 2, Qing-xu WANG3
Water Resources and Power | 2023, 41(7) : 19 - 21
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Water Resources and Power | 2023, 41(7): 19-21
• HYDROLOGY，WATER RESOURCES AND ENVIRONMENT •
Study on Base-flow Evolution Law and Its Causes of Qinghai Lake Basin
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Hai-juan JI1, 2, Xiao-dong LI1, 2, Qing-xu WANG3
Affiliations
  • 1.Qinghai Institute of Meteorological Sciences, Xining 810001, China
  • 2.Qinghai Key Laboratory of Disaster Prevention and Reduction, Xining 810001, China
  • 3.Qinghai Hydrological and Water Resources Measurement and Reporting Center, Xining 810099, China
Published: 2023-07-25 doi: 10.20040/j.cnki.1000-7709.2023.20221012
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Based on the runoff data of Buha River Basin and Shaliu River Basin in Qinghai Lake Basin, the annual base-flow index was obtained by using the filter smoothing minimum method. The temporal and spatial variation of precipitation and the evolution law of base flow in this basin were analyzed by TFPW-MK method, and the influencing factors of base flow were analyzed. The results show that the base-flow index of Buha River Basin first increases, then decreases and increases, reaching the maximum in May and the minimum in August; The base flow index of Shaliu River Basin fluctuates and reaches the minimum in April. The annual average runoff in the Buha River Basin and the Shaliu River Basin showed a significant increasing trend, and both the annual average base flow and base flow index showed an insignificant increasing trend; The base flow inclination rate of the Buha River Basin is twice that of the Shaliu River Basin. The base flow sequence of the Buha River Basin and the Shaliu River Basin is greatly affected by precipitation, flow, drought index and evaporation, and the Shaliu River Basin is more significantly affected by evaporation.

Qinghai Lake  /  Buha River  /  Shaliu River Basin  /  base flow  /  base flow index
Hai-juan JI, Xiao-dong LI, Qing-xu WANG. Study on Base-flow Evolution Law and Its Causes of Qinghai Lake Basin[J]. Water Resources and Power, 2023 , 41 (7) : 19 -21 . DOI: 10.20040/j.cnki.1000-7709.2023.20221012
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20221012
  • Receive Date：2022-05-14
  • Online Date：2026-01-28
  • Published：2023-07-25
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  • Received：2022-05-14
  • Revised：2022-08-08
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Affiliations
    1.Qinghai Institute of Meteorological Sciences, Xining 810001, China
    2.Qinghai Key Laboratory of Disaster Prevention and Reduction, Xining 810001, China
    3.Qinghai Hydrological and Water Resources Measurement and Reporting Center, Xining 810099, China
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https://castjournals.cast.org.cn/joweb/sdnykx/EN/10.20040/j.cnki.1000-7709.2023.20221012
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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