Journal of Geographical Sciences ›› 2013, Vol. 23 ›› Issue (1): 113-122.doi: 10.1007/s11442-013-0997-7

• Research Articles • Previous Articles     Next Articles

Water renewal time of the Yellow River mainstream based on reservoir action

JIANG Xiaohui1, LIU Changming2,3   

  1. 1. Yellow River Institute of Hydraulic Research, Yellow River Conservancy Commission, Zhengzhou 450003, China;
    2. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    3. Beijing Normal University, Beijing 100875, China
  • Received:2012-07-09 Revised:2012-08-17 Online:2013-02-15 Published:2013-02-07

Abstract:

This note analyzes the change in water renewal time characteristics based on reservoir action and then establishes calculation models for the water renewal time in the Yellow River mainstream. The results indicate that the amount of renewable water with reservoir action can meet the annual water demand and that water flows naturally at the Lijin station near estuary. Initial storage dynamics is an important factor in water resource renewable capacity at a certain time, and rational reservoir action can promote sustainable water resource utilization. When the initial storages in the Longyang Gorge reservoir are 9.343 and 5.343 billion m3, the water renewal times are 28 and 33.9 d, respectively. Flow stoppage appears in April and May.

Key words: water renewal time, reservoir action, Yellow River