中国地理科学(英文版) ›› 2012, Vol. 22 ›› Issue (5): 507-521.

• 论文 •    下一篇

Temporal Variations of Water Discharge and Sediment Load of Huanghe River, China

LIU Feng1, CHEN Shenliang1, PENG Jun2, CHEN Guangquan1   

  1. (1. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China;2. School of Nuclear Engineering and Technology, East China Institute of Technology, Nanchang 330013, China)
  • 出版日期:2012-10-05 发布日期:2012-10-09

Temporal Variations of Water Discharge and Sediment Load of Huanghe River, China

LIU Feng1, CHEN Shenliang1, PENG Jun2, CHEN Guangquan1   

  1. (1. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China;2. School of Nuclear Engineering and Technology, East China Institute of Technology, Nanchang 330013, China)
  • Online:2012-10-05 Published:2012-10-09

摘要:

 Based on the data from gauging stations, the changes in water discharge and sediment load of the Huanghe (Yellow) River

were analyzed by using the empirical mode decomposition (EMD) method. The results show that the periodic oscillation of water

discharge and sediment load of the Huanghe River occurs at the interannual, decadal, and multi-decadal scales, caused by the periodic

oscillations of precipitation, and El Niño/Southern Oscillation (ENSO) affects water discharge by influencing precipitation distribution and

contributes to periodic varations in precipitation and water discharge at interannual timescale. The water discharge and sediment load of

the Huanghe River have decreased since the 1960s under the influence of precipitation and huamn activities, and human activities

attribute more than precipitation to the reduction in the water discharge and sediment load, furthermore, water abstraction and water-

soil conservation practices are the main causes of the decrease in water discharge and sediment load, respectively. The reduction in

sediment load has directly impacted on the lower reaches of the Huanghe River and the river delta, causing considerable erosion of the

river channel in the lower reaches since the 1970s along with River Delta changing siltation into erosion around 2000.

关键词: water discharge, sediment load, empirical mode decomposition, morphological changes, Huanghe River, China

Abstract:

 Based on the data from gauging stations, the changes in water discharge and sediment load of the Huanghe (Yellow) River

were analyzed by using the empirical mode decomposition (EMD) method. The results show that the periodic oscillation of water

discharge and sediment load of the Huanghe River occurs at the interannual, decadal, and multi-decadal scales, caused by the periodic

oscillations of precipitation, and El Niño/Southern Oscillation (ENSO) affects water discharge by influencing precipitation distribution and

contributes to periodic varations in precipitation and water discharge at interannual timescale. The water discharge and sediment load of

the Huanghe River have decreased since the 1960s under the influence of precipitation and huamn activities, and human activities

attribute more than precipitation to the reduction in the water discharge and sediment load, furthermore, water abstraction and water-

soil conservation practices are the main causes of the decrease in water discharge and sediment load, respectively. The reduction in

sediment load has directly impacted on the lower reaches of the Huanghe River and the river delta, causing considerable erosion of the

river channel in the lower reaches since the 1970s along with River Delta changing siltation into erosion around 2000.

Key words: water discharge, sediment load, empirical mode decomposition, morphological changes, Huanghe River, China