近60年黄河入海水沙多尺度变化及其对河口的影响

被引:45
作者
刘锋
陈沈良
彭俊
陈广泉
机构
[1] 华东师范大学河口海岸学国家重点实验室
关键词
黄河; 入海水沙; 小波分析; 多尺度变化; 河口演变;
D O I
暂无
中图分类号
P333.4 [泥沙的分析与计算];
学科分类号
摘要
基于1950-2008年利津站月均径流量和输沙量的时间序列资料,采用小波分析的方法研究了黄河入海水沙多尺度变化,并结合不同年份的黄河口岸线和口门地形资料分析了水沙变化对河口演变的影响。结果表明:黄河入海水沙具有3个不同时间尺度的显著周期变化,其与厄尔尼诺事件有关,不同尺度下的入海水沙丰枯变化不同;受流域降水和人类活动的影响,入海水沙长期呈减少趋势,并具有阶段变化的特征;入海水沙变化深刻影响着河口演变,不同时期行水河口的岸线延伸速率与河口来沙量有关,亿t泥沙岸线延伸量与来沙系数显著相关,自1976年清水沟流路入海以来,河口水下三角洲表现为淤积,淤积程度与入海水沙量密切相关。
引用
收藏
页码:313 / 323
页数:11
相关论文
共 21 条
[11]  
Temporal variation of sediment load in the Yellow River basin, China, and its impacts on the lower reaches and the river delta[J] . Jun Peng,Shenliang Chen,Ping Dong.Catena . 2010 (2)
[12]  
Relationship between flood/drought disasters and ENSO from 1857 to 2003 in the Taihu Lake basin, China[J] . Yixing Yin,Youpeng Xu,Ying Chen.Quaternary International . 2009 (1)
[13]  
Climatic and anthropogenic factors affecting river discharge to the global ocean, 1951–2000[J] . J.D. Milliman,K.L. Farnsworth,P.D. Jones,K.H. Xu,L.C. Smith.Global and Planetary Change . 2008 (3)
[14]  
Interannual and seasonal variation of the Huanghe (Yellow River) water discharge over the past 50 years: Connections to impacts from ENSO events and dams[J] . Houjie Wang,Zuosheng Yang,Yoshiki Saito,J. Paul Liu,Xiaoxia Sun.Global and Planetary Change . 2006 (3)
[15]  
Human impact on land–ocean sediment transfer by the world's rivers[J] . D.E. Walling.Geomorphology . 2006 (3)
[16]  
Application of the cross wavelet transform and wavelet coherence to geophysical time series[J] . Grinsted A.,Moore J. C.,Jevrejeva S..Nonlinear Processes in Geophysics . 2004 (40)
[17]  
Recent trends in the suspended sediment loads of the world's rivers[J] . D.E. Walling,D. Fang.Global and Planetary Change . 2003 (1)
[18]   Transformation of the Ebro River Delta under the Impact of Intense Human-Induced Reduction of Sediment Runoff [J].
M. V. Mikhailova .
Water Resources, 2003, 30 (4) :370-378
[19]  
Sedimentation in the Colorado River delta and Upper Gulf of California after nearly a century of discharge loss[J] . J.D. Carriquiry,A. Sánchez.Marine Geology . 1999 (1)
[20]  
Stepwise decreases of the Huanghe(Yellow River)sediment load(1950-2005):Impacts of climate change and human activities .2 U.Wang,H.Yang,Z.Saito,et al. Global and Planetary Change . 2007