Annual and monthly water discharges and sediment discharges of the Huanghe River for 40 years from 1950 to 1989, and sediment budget of the Huanghe River are reviewed in this paper.
Average annual water dischage and sediment discharge of the Huanghe River for 40 years are 4×10
10m
3 and 1×10
9 tons, respectively, at Lijin station. Both discharges come mainly during the period from August to November.. About 85% of sediment discharge comes in this period. For the great variability of the rainfall of the drainage basin of the river, the variability of the sediment discharge is great. The highest annual sediment discharge is about 20 times than the lowest one.
About 20-30% of the sediments passing the Lijin station is deposited on the subaerial delta plain of the Huanghe River, and 40-50% in the nearshore areas of the delta within about 30km from the coastline. A total of 70-80% of the sediments is deposited in the delta area and 20-30% of the rest is transported to offshore areas. In the Bohai Sea and the Yellow Sea, 10-15% and 15-20% of the sediments are deposited respectively, and less than 1% on the East China Sea shelf.
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