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Trend Analysis of Precipitation Evolution Based on Multiple Trend Analysis Methods
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Xin-yang LI1, 2, Jun-kai DU2, Xin-gong HU3, Ya-qin QIU2, Hai-ying LIU2
Water Resources and Power | 2023, 41(10) : 14 - 18
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Water Resources and Power | 2023, 41(10): 14-18
• HYDROLOGY, WATER RESOURCES AND ENVIRONMENT •
Trend Analysis of Precipitation Evolution Based on Multiple Trend Analysis Methods
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Xin-yang LI1, 2, Jun-kai DU2, Xin-gong HU3, Ya-qin QIU2, Hai-ying LIU2
Affiliations
  • 1.School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
  • 2.Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
  • 3.Yili Hydrological Survey Bureau, Yili 835000, China
Published: 2023-10-25 doi: 10.20040/j.cnki.1000-7709.2023.20230812
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In order to solve the problem that the current existing precipitation trend analysis methods cannot simultaneously detect precipitation trends in low and high value areas, this article introduces innovative trend analysis (ITA) and combines it with traditional trend analysis methods for analysis. Taking the station data of Yili River basin from 1961 to 2020 as an example, the ITA and Mann-Kendall (MK) series, Theil Sen and other seven methods are compared and analyzed. The results show that the annual precipitation of stations in Yili River basin, except Huocheng Station, Yining County Station and Zhaosu Station, increases significantly in other stations in high value areas, which is the same as the trend of annual extreme precipitation; The extreme precipitation intensity in the low and median areas of other stations shows an increasing trend, while the high value areas show a decreasing trend, and the overall trend is increasing; The ITA can reflect the range of rainfall changes and detect the trend changes of rainfall in low, medium, and high value areas. Therefore, the combination of ITA and traditional trend method to conduct trend analysis on the overall rainfall and rainfall in high and low regions simultaneously will help to more comprehensively analyze the precipitation change law of Yili River basin.

Mann-Kendall trend test  /  innovative trend analysis  /  precipitation trend  /  Yili River basin
Xin-yang LI, Jun-kai DU, Xin-gong HU, Ya-qin QIU, Hai-ying LIU. Trend Analysis of Precipitation Evolution Based on Multiple Trend Analysis Methods[J]. Water Resources and Power, 2023 , 41 (10) : 14 -18 . DOI: 10.20040/j.cnki.1000-7709.2023.20230812
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20230812
  • Receive Date：2023-05-12
  • Online Date：2026-01-28
  • Published：2023-10-25
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History
  • Received：2023-05-12
  • Revised：2023-06-11
Funding
Affiliations
    1.School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
    2.Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
    3.Yili Hydrological Survey Bureau, Yili 835000, China
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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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