River and Lake Evolution of the Middle and Lower Yangtze River Basin and Its Impacts
YAO Shi-ming1,2(), HE Zi-can2,3()
1 Changjiang River Scientific Research Institute,Wuhan 430010,China 2 Key Laboratory of Ministry of Water Resources on River-Lake Regulation and Flood Control in the Middle and Lower Reaches of Yangtze River, Changjiang River Scientific Research Institute, Wuhan 430010, China 3 River Research Department, Changjiang River Scientific Research Institute, Wuhan 430010, China
YAO Shi-ming, HE Zi-can. River and Lake Evolution of the Middle and Lower Yangtze River Basin and Its Impacts[J]. Journal of Changjiang River Scientific Research Institute, 2025, 42(1): 1-10.
Fig.1 Variations in annual water and sediment supply of major hydrological stations in the middle and lower Yangtze River before and after the construction of the Three Gorges Reservoir
Fig.1 Variations in annual water and sediment supply of major hydrological stations in the middle and lower Yangtze River before and after the construction of the Three Gorges Reservoir
Fig.2 Annual variations in runoff and sediment processes at Yichang Station before and after the construction of the Three Gorges Reservoir
Fig.2 Annual variations in runoff and sediment processes at Yichang Station before and after the construction of the Three Gorges Reservoir
Fig.3 Annual flow distribution of hydrological stations along the middle and lower Yangtze River before and after the construction of the Three Gorges Reservoir
Fig.3 Annual flow distribution of hydrological stations along the middle and lower Yangtze River before and after the construction of the Three Gorges Reservoir
Fig.4 Variations in sediment transport flux of different grain size groups at hydrological stations along the middle and lower reaches of Yangtze River
Fig.4 Variations in sediment transport flux of different grain size groups at hydrological stations along the middle and lower reaches of Yangtze River
Fig.5 Interannual variations in water and sediment inflows and outflows of the Dongting Lake and the Poyang Lake
Fig.5 Interannual variations in water and sediment inflows and outflows of the Dongting Lake and the Poyang Lake
Fig.6 Temporal and spatial variations in the annual erosion volume of the bankful channel from Yichang to Jiangyin
Fig.6 Temporal and spatial variations in the annual erosion volume of the bankful channel from Yichang to Jiangyin
Table 1 Total erosion and deposition volumes of channels connecting the mainstream Yangtze River with the Dongting Lake and the Poyang Lake in 2016-2021
Table 1 Total erosion and deposition volumes of channels connecting the mainstream Yangtze River with the Dongting Lake and the Poyang Lake in 2016-2021
河段名称
统计时段
冲淤量/(万m3)
枯水河槽
平滩河槽
洪水河槽
白螺矶河段 (洞庭湖汇 流段)
2016-11—2019-10
1 524
1 498
753
2019-10—2020-10
-436
-606
-542
2020-10—2021-04
139
25
19
张家洲河段 (鄱阳湖汇 流段)
2016-11—2019-10
2 589
1 665
1 494
2019-10—2020-10
375
1 210
1 418
2020-10—2021-04
136
1 297
1 615
Fig.7 Temporal variations in sediment supply/outputs, erosion volumes and sediment output ratios of the Dongting Lake
Fig.7 Temporal variations in sediment supply/outputs, erosion volumes and sediment output ratios of the Dongting Lake
Fig.8 Variations in annual average erosion and deposition volumes in the bankful channels of the three outlets of Jingjiang River
Fig.8 Variations in annual average erosion and deposition volumes in the bankful channels of the three outlets of Jingjiang River
Fig.9 Temporal variations in erosion and deposition volumes of the Poyang Lake
Fig.9 Temporal variations in erosion and deposition volumes of the Poyang Lake
Fig.10 Predictions of erosion and deposition volumes in the Dongting Lake and the Poyang Lake
Fig.10 Predictions of erosion and deposition volumes in the Dongting Lake and the Poyang Lake