Twelve-year dynamics of cadmium and hybrid modeling of its stabilization following exogenous input in the water-level fluctuation zone of Three Gorges Reservoir - Shutang Gao; Xingyang Zhou; Yan Shi; Rongshan Du; Biao Xiong; Ying Xi; Tao Xu; Yingping Huang (Journal of Geochemical Exploration, 2026)