This application provides a method, apparatus, equipment, and medium for river ecological management. The method acquires an ecological dataset, which includes four-dimensional data formed by the comprehensive
ecological health index of a target river segment during a target historical period, and runoff,
sediment concentration, and
water temperature from
river monitoring data. A water,
sediment, and temperature threshold prediction model is trained based on multiple
ecological data sets. After training, an implicit function describing the model is obtained. This implicit function includes a continuous function of the comprehensive
ecological health index with respect to runoff,
sediment concentration, and
water temperature. The continuous function is obtained by learning and fitting a continuous manifold to multiple discrete
ecological data sets through a neural
differential equation in the water, sediment, and temperature threshold prediction model. Solving the implicit function yields the runoff threshold range,
sediment concentration threshold range, and
water temperature threshold range. This application provides a method for quantitatively evaluating
river health and determining thresholds, enabling targeted river ecological management.