Analysis of annual-averaged water level changes at the tail of Fuhe River, inflow of Poyang Lake

摘要

The area at the tail end of Fuhe River has an important economic and social status and ecological protection needs. Its water level change is directly related to the water security of this region. Based on the daily average water level observation data of three hydrologic stations in the end of Fuhe River in the past 70 years, the change trend of annual average water level was analysed by using Mann-Kendall and moving average methods. The results show that there has been a continuous downward trend of water level at the tail end of Fuhe River. The water level drop along the river was 1.3m to 3.5m, and abrupt changes had occurred in the 1990s and early 20th century.