1Discussion on Implementation Path of Recovering River and Lake Ecological Environment——Taking Baiyang Lake as An ExampleZHANG Yun17-19,242Temporal and Spatial Variation Characteristics of Water Quality in the Upstream River Channel of Miyun ReservoirHU Chun-chun, LI Ya-nan, YANG Qian, REN Min20-243Evolution of Ecosystem Service Value of Reservoirs along the Middle Route of the South-to-North Water Diversion ProjectZHANG Xian-qi, LU Xiao-bin43-47,544Current Situation and Changes of Water Quality in the Follow-up Project of the East Route of the South-to-North Water Diversion Project(North of the Yellow River)HOU Si-yan, CUI Xiu-ping, LIU De-wen48-505Investigation on the Pollution Source of the Follow-up Project of the East Route of the South-to-North Water Diversion ProjectCUI Xiu-ping, HOU Si-yan, YAO Wen-liang, HAN Wei51-546Study on the Regulation and Storage Design of Initial Light Rain in Longganghe River Basin in ShenzhenWANG Deng-min55-58,697Calculation and Analysis of Rainfall Retaining Capacity of Medium-Sized Reservoirs in Hebei Province in Haihe River BasinYANG Xin-lei, YANG Peng63-658Comparative Analysis of"21·7"Flood and"63·8"Flood in Weihe River BasinYANG Wan-zhen, WANG Pei-yue, ZHAO Wei-ling66-699Regulation and Operation of Yuecheng Reservoir in Autumn Flood Control of Zhanghe RiverYU Yang-zhuo-yi77-78,8610Study on the Wetness-Dryness Encountering for Mainstream and Tributary of Luanhe River Basin based on Three-Dimensional Copula FunctionWEI Lin, YANG Xue-jun, WANG Xu-dong87-91,9911Effect Evaluation of River Management Project based on FAHP Evaluation Model——Taking Sunzu River as An ExampleSHANG Wen-kai, SUN Yong-xiang92-96,11012Calibration Analysis of the Flow Derivation and Flood Reporting of Sangan Sluice in Huailian Irrigation AreaLI Yi, CHEN Xiao-yu, LI Di-rui97-9913Analysis and Research on Force Calculation of Concrete Face Slab of Nam Ou Ⅶ Hydropower StationLIU Jun-hong, LI Xiao-feng103-106 