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本项目研究了黄河口近半个世纪径流量与输沙量的变化,廿世纪五十年代至九十年代水、沙量呈明显递减,预测今后廿年黄河口多年平均径流量不会超过150~200 x 108m3,多年平均输沙量不超过 5~ 7 x 108t。在研究黄河三角洲海岸线历史变化的基础上,结合预测的水、沙量,用地貌模拟法预测了今后廿年黄河三角洲0m海岸线的基本走向。
The project studied the changes of runoff and sediment discharge in the Yellow River Estuary for nearly half a century. The water and sediment levels of the 1950s to the 1990s decreased significantly, and the average runoff of the Yellow River Estuary in the next 20 years will not exceed 150 ~ 200 x 108m3, the average annual sediment transport does not exceed 5 ~ 7 x 108t. Based on the study of the historical changes of the coastline of the Yellow River Delta, combined with the predicted amount of water and sediment, the paper predicts the basic trend of the 0m coastline in the Yellow River Delta over the next 20 years by means of landform simulation.