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Table 5

The optimal parameter sets of the SWAT model for the three regions

ParameterShiquan watershedShiquan-Ankang intermediate areaAnkang-Danjiangkou intermediate area
SURLAG 0.325425 9.594075 9.857525 
CN2 –0.0854 0.1038 0.1986 
SOL_K 0.5832 0.4376 0.7384 
SOL_BD 0.26615 0.40805 0.14625 
SOL_AWC 0.0979 0.3037 0.1501 
GW_DELAY 186.75 200.75 398.75 
ALPHA_BF 0.9575 0.6715 0.0785 
GWQMN 912.5 1307.5 987.5 
GW_REVAP 0.09137 0.06275 0.02675 
REVAPMN 852.5 350.5 866.5 
ALPHA_BNK 0.6685 0.2005 0.7705 
CH_N2 0.249315 0.225755 0.001625 
CH_K2 380.7476 23.24047 275.7455 
CH_N1 26.56614 22.78741 24.82673 
CH_K1 220.35 48.15 34.95 
LAT_TTIME 5.49 149.49 1.71 
CANMX 92.35 3.35 13.65 
ESCO 0.143155 0.060985 0.233245 
EPCO 0.598555 0.680725 0.454015 
ParameterShiquan watershedShiquan-Ankang intermediate areaAnkang-Danjiangkou intermediate area
SURLAG 0.325425 9.594075 9.857525 
CN2 –0.0854 0.1038 0.1986 
SOL_K 0.5832 0.4376 0.7384 
SOL_BD 0.26615 0.40805 0.14625 
SOL_AWC 0.0979 0.3037 0.1501 
GW_DELAY 186.75 200.75 398.75 
ALPHA_BF 0.9575 0.6715 0.0785 
GWQMN 912.5 1307.5 987.5 
GW_REVAP 0.09137 0.06275 0.02675 
REVAPMN 852.5 350.5 866.5 
ALPHA_BNK 0.6685 0.2005 0.7705 
CH_N2 0.249315 0.225755 0.001625 
CH_K2 380.7476 23.24047 275.7455 
CH_N1 26.56614 22.78741 24.82673 
CH_K1 220.35 48.15 34.95 
LAT_TTIME 5.49 149.49 1.71 
CANMX 92.35 3.35 13.65 
ESCO 0.143155 0.060985 0.233245 
EPCO 0.598555 0.680725 0.454015 
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