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Chinese Journal of Applied Ecology ›› 2018, Vol. 29 ›› Issue (4): 1033-1041.doi: 10.13287/j.1001-9332.201804.010

• Special Features of Hydrological Variability and Inconsistency • Previous Articles     Next Articles

Gene method for inconsistent hydrological frequency calculation. Ⅱ: Diagnosis system of hydrological genes and method of hydrological moment genes with inconsistent characters

XIE Ping1,2, ZHAO Jiang-yan1*, WU Zi-yi1, SANG Yan-fang3, CHEN Jie1, LI Bin-bin4, GU Hai-ting5   

  1. 1State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China;
    2Collaborative Innovation Center for Territorial Sovereignty and Maritime Rights, Wuhan 430072, China;
    3Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;
    4Hydrological Bureau of Yangtze River Commission, Wuhan 430010, China;
    5College of Civil Engineering Architecture, Zhejiang University, Hangzhou 310058, China;
  • Received:2018-01-24 Online:2018-04-18 Published:2018-04-18
  • Contact: * E-mail: zhaojiangyan@whu.edu.cn
  • Supported by:

    This study was supported by the National Natural Science Foundation of China (91547205, 91647110, 51579181, 51779176) and the Water Engineering and Science Project of Hunan Province (Xiangshuikeji [2015]13-21).

Abstract: The analysis of inconsistent hydrological series is one of the major problems that should be solved for engineering hydrological calculation in changing environment. In this study, the diffe-rences of non-consistency and non-stationarity were analyzed from the perspective of composition of hydrological series. The inconsistent hydrological phenomena were generalized into hydrological processes with inheritance, variability and evolution characteristics or regulations. Furthermore, the hydrological genes were identified following the theory of biological genes, while their inheritance bases and variability bases were determined based on composition of hydrological series under diffe-rent time scales. To identify and test the components of hydrological genes, we constructed a diagnosis system of hydrological genes. With the P-Ⅲ distribution as an example, we described the process of construction and expression of the moment genes to illustrate the inheritance, variability and evolution principles of hydrological genes. With the annual minimum 1-month runoff series of Yunjinghong station in Lancangjiang River basin as an example, we verified the feasibility and practicability of hydrological gene theory for the calculation of inconsistent hydrological frequency. The results showed that the method could be used to reveal the evolution of inconsistent hydrological series. Therefore, it provided a new research pathway for engineering hydrological calculation in changing environment and an essential reference for the assessment of water security.