1Development and Utilization of Water Resources in the Haihe River BasinXU Kai, HAN Peng, LIU Bo-jing, YAN Zhan-you1-72Evaluation of Coordinated Development of Water-energy-food System in the Beijing-Tianjin-Hebei RegionZHENG Xue, ZHOU Hao, ZHANG Ye-chi, WANG Jing8-11,153Development and Utilization Potential of Water Resources and Management Suggestions in TianjinYUN Jian-wei, YANG Chun-peng, LI Jian-guo12-154Different Changes of Water Resources in Hebei ProvinceLI Hai-tao16-185Water Resources Supply and Demand based on the Theory of Production Determined by Water in Hebei ProvinceYAN Ling-lu, LI Jun, ZHAO An19-246Evaluation and Prospect of Water Resources in Yanqing District in the Post-Olympic PeriodGU Xue-ye, ZHOU Jun-sheng, LIU Ying, YIN Shi-yang25-287Practice and Reflection of Ecological Environment Recovery of Rivers and Lakes in the Haihe River BasinWANG Xue-mei, MA Huan, LI Yu29-328Problem on Ecological Environment Restoration of South CanalBIAN Yu-cheng33-369River Ecological Governance in BeijingZHANG Yang, KANG Zi-qiu, ZHAN Si-nan, CAO Rui37-39,4810Health Supervision and Evaluation System of Rivers and Lakes in BeijingLIU Yu, NIE Ying-jun, LI Ji-heng, QIU Bin-luo40-4411Serving and Ensuring the Development of River Basin Water Conservancy by High-quality PlanningJIN Feng-juan, TAN Jie, ZHANG Ying-xue, HUANG Kai49-5412Water Administrative Enforcement of HWCC under the Situation of Strengthening River Basin ManagementLIU Bing-ao, ZHANG Rui, FU Ke-rong59-6413Strengthening the Construction of Water Administration Supervision Team in the HWCC SystemXIE Wen-jing, FU Xiao-liang, ZHANG Yi65-67,7114Build a New Pattern of Water Conservancy Supervision of HWCC by Coordinating and Promoting the ImplementationWANG Yong-gang, YANG Chao-han, QIN Guang-xiu68-7115Key Points of Construction of Haihe Tide Gate Reinforcement ProjectMA Chao, DU Kai, LIU Yuan-zheng75-7816Numerical Model on Groundwater in the Dianxi Plain of Daqing RiverLI Wei, GUO Shu-yan, XUE Li-juan, DING Xiao-meng83-86,9317A New Sensing System of Water Conservancy based on the Intelligent Edge IoT TerminalCAI Le, YU Feng, LIU Sheng-jun110-11318Developments of Watershed Governance and Management Driven by the Digital Twin Haihe River BuildingLV Zhe-min, LIU Heng-wei114-117,12119Development and Construction of Water Communication Network in the Haihe River BasinWANG Yun-zhao, TIAN Yu, JIA Yi-chen, WANG De-run118-121 