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Table 2

The average annual sediment fluxes in dry and flood seasons (106 t/yr) over the natural period (1961–1980) and the impact period (1981–2014), and the declining rate

StationDry season
Flood season
Natural periodImpact periodDeclining rate (%)Natural periodImpact periodDeclining rate (%)
Zhutuo 5.46 5.08 6.8 293.40 250.49 14.6 
Cuntan 9.44 6.61 30.0 405.99 321.43 20.8 
Yichang 24.98 6.35 74.6 492.17 305.87 37.9 
Luoshan 69.91 37.04 47.0 372.14 247.73 33.4 
Hankou 57.77 31.68 45.2 381.45 239.66 37.2 
Datong 58.33 38.76 33.5 411.09 251.84 38.7 
StationDry season
Flood season
Natural periodImpact periodDeclining rate (%)Natural periodImpact periodDeclining rate (%)
Zhutuo 5.46 5.08 6.8 293.40 250.49 14.6 
Cuntan 9.44 6.61 30.0 405.99 321.43 20.8 
Yichang 24.98 6.35 74.6 492.17 305.87 37.9 
Luoshan 69.91 37.04 47.0 372.14 247.73 33.4 
Hankou 57.77 31.68 45.2 381.45 239.66 37.2 
Datong 58.33 38.76 33.5 411.09 251.84 38.7 
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