摘要
为探究闽江下游径流量演变趋势,采用Mann-Kendall法和Morlet小波分析相结合的分析方法,对闽江下游竹岐站1950—2019年长序列径流量数据进行分析.研究表明:闽江下游1950—2019年径流量呈微弱上升趋势,季节变化大.春、夏季径流量呈下降趋势,秋、冬季呈上升趋势,且冬季上升显著.1950—2019年径流量突变发生于2015和2017年.多年径流量主周期为32、12和8 a;汛期径流量主周期为32、12和5 a;非汛期径流量主周期为25、5和52 a.分析结果有助于深入理解闽江下游径流量演变规律,为闽江下游水资源利用提供理论参考.
In order to investigate the variation of the runoff in the downstream of Minjiang River,Zhuqi runoff data from 1950 to 2019 were statistically analyzed by Mann-Kendall and Morlet wavelet method.The runoff shows a slight upward trend and an obvious seasonal change from 1950 to 2019.The runoff in the downstream of Minjiang River shows downtrend in spring and summer,but upward trend in autumn and significantly rise in winter.The mutation occurs separately in 2015 and 2017.The main cycle of annual runoff are 32,12 and 8 a.The flood periods are 32,12 and 5 a.The non-flood periods are 25,5 and 52 a.This study is helpful for a better understanding of the evolution and the characteristics of the runoff,providing theoretical reference for water conservation in the downstream of Minjiang River.
作者
王立辉
钟昊林
余志明
邹清水
徐普
WANG Lihui;ZHONG Haolin;YU Zhiming;ZOU Qingshui;XU Pu(College of Civil Engineering,Fuzhou University,Fuzhou,Fujian 350108,China;Minjiang Estuary Hydrological Experiment Station,Hydrology and Water Resources Bureau of Fujian Province,Fuzhou,Fujian 350011,China)
出处
《福州大学学报（自然科学版）》
CAS
北大核心
2022年第5期681-686,共6页
Journal of Fuzhou University(Natural Science Edition)
基金
国家重点研发计划资助项目(2016YFC0400910)
福建省水利科技资助项目(2020-0203)。
