Temporal and spatial variation and risk assessment of soil heavy metal concentrations for water-level-fluctuating zones of the Three Gorges Reservoir

Purpose This study aimed to reveal the temporal and spatial variation of soil heavy metal concentrations in the Three Gorges Reservoir area (TGR) water-level-fluctuating zone (WLFZ) and evaluated its pollution status and potential ecological risks and provide scientific basis for ecological risk prevention and ecological restoration of the TGR.