摘要
为了解鄱阳湖水文泥沙变化趋势以指导相关水利工程规划建设,收集1950年代以来鄱阳湖入、出湖控制水文站及湖区水位站的最新水文泥沙实测资料,采用Mann-Kendall趋势检验法及滑动T检验法分析了鄱阳湖入、出湖年径流量及年输沙量、湖区年均水位变化趋势。研究结果显示,鄱阳湖入湖年径流量在1960年后主要呈现增加趋势,并在1963年发生突减;出湖年径流量先减后增,并在1991年发生突增,在2002年发生突减。鄱阳湖入湖年输沙量先增后减,并在1996年发生突减;出湖年输沙量在1990~2010年呈现减小趋势,并在2001年发生突增,在2017年发生突减。鄱阳湖湖区年均水位在2005年发生突减,近20年主要呈现为减小趋势。研究成果可为鄱阳湖流域的湖泊治理和水资源规划等提供参考。
To understand the variation trends of hydrology and sediment in Poyang Lake and provide guidance for the planning and construction of related water conservancy projects,the measured hydrological and sediment data from the control hydrological stations and water level stations of Poyang Lake since the 1950s were collected.The Mann-Kendall trend test method and sliding T-test method were used to analyze the variation trends of the annual runoff and sediment load into and out of the lake,and annual average water level.The results indicate that the annual runoff inflow the lake area showed an increasing trend after 1960,and an abrupt decrease occurred in 1963.The annual runoff out of the lake area first showed a decreasing trend,then changed to an increasing trend,and experienced an abrupt increase in 1991 and an abrupt decrease in 2002.The annual sediment discharge entering Poyang Lake first showed an increasing trend,then changed to a decreasing trend,and an abrupt decrease occurred in 1996.The annual sediment discharge leaving the lake mainly showed a decreasing trend from 1990 to 2010.An abrupt increase occurred in 2001 and an abrupt decrease occurred in 2017.The annual average water level in Poyang Lake experienced the only abrupt change in 2005 and showed a continuous decreasing trend in the past 20 years.The research results could provide scientific references for lake governance and water resource planning in the Poyang Lake Basin.
作者
朱政涛
杨中华
黄东
刘洋
ZHU Zheng-tao;YANG Zhong-hua;HUANG Dong;LIU Yang(State Key Laboratory of Water Resources Engineering and Management,Wuhan University,Wuhan 430072,China;Guangdong Research Institute of Water Resources and Hydropower,Guangzhou 510635,China;School of Civil Engineering,Sun Yat-sen University,Zhuhai 519082,China)
出处
《水电能源科学》
北大核心
2025年第7期86-90,共5页
Water Resources and Power
基金
广东省水利科技创新项目(2023-06,2024-06)
2023年省科技创新战略专项资金科研项目(sky2023-05)。
关键词
鄱阳湖
水文泥沙
趋势分析
突变
Poyang Lake
hydrology and sediment
trend analysis
abrupt change
作者简介
朱政涛(1993-),男,博士,研究方向为水力学及河流动力学,E-mail:zzt@whu.edu.cn;通讯作者:杨中华(1977-),男,博士、教授、博导,研究方向为水力学及河流动力学,E-mail:yzh@whu.edu.cn。
