1Thoughts on implementation of National"River Strategy"Chen MaoshanSpecial Focus1-52Challenges faced by dam safety in China and considerations for reservoir operation and maintenanceYang Qigui, Wang MixueSpecial Focus6-103Scientific research and engineering practice in the systematic governance of sediment in the Yellow River basinZhang Jinliang, Li DaSpecial Focus11-16,234Urban flood control and resilient city construction:transformation,innovation,and reflectionsXu Zongxue, Liao Ruting, Shu XinyiSpecial Focus17-235Research on public policy evaluation based on the River and Lake Chief SystemLiu Xiaoyong, Li Heshu, Meng Bo, Lang Maixian, Chen JianForefront24-336Hydrological evolution and multi-source water optimal regulation in the Yongding River basinHu Qingfang, Wan Chao, Lei Zhendong, Peng Anbang, Su Xin, Wang YintangWater Resources Management34-407Smart water conservancy theory system and digital twin watershed virtual model research summaryYe Yuntao, Jiang Yunzhong, Cao Yin, Shang Yizi, Gu Jingjing, Dong Jiaping, Huang Jianxiong, Guan HaozheWater Resources Informatization41-518Research and application exploration of a basin flood and drought disaster intelligent"four pres"system driven by meteorological elementsMa Donghe, Feng YoucanWater Resources Informatization52-579Development and application of digital twin watershed water resources professional model for flood control"four pres"——taking the digital twin Feiyun River basin as an exampleRen Minglei, Zhao Liping, Chen Zhiyang, Wei Guozhen, Tang Rong, Wang Gang, Yu Haijun, Xia ZhichangWater Resources Informatization58-6410Study and reflection on compulsory water quotas in the Yellow River basinSong Jingru, Liu Bin, Xiao Haozhu, Cheng Xianguo, Jing Ming, Song ChangjiWater-Saving65-6811Application of remote sensing monitoring technology in rectifying"four illegal problems"in key rivers,lakes,and reservoirs of Jiangxi ProvincePeng Xiangguo, Tang Yanmei, Yi Zhichao, Li GuangRiver-Lake Management and Protection69-72