Abstract:

Through field investigations, data collection, and statistical analysis, this study systematically identified the distribution of environmental emergency spaces and facilities within the Tang River Basin. Combining the spatial distribution characteristics of environmentally sensitive targets and sources of key environmental risk and using the MIKE11 hydrodynamic model simulation and prediction method, a quantitative assessment was conducted to evaluate the scope of impact and degree of sudden water pollution incidents under different scenarios. Based on the whole-process management concept of "source prevention, process interception, and end treatment," an environmental emergency response process for water pollution incidents covering pollution source tracing, emergency response, and coordinated disposal was designed. Furthermore, an emergency response system for sudden water pollution incidents in the Tang River Basin, encompassing dimensions such as organizational command, technical support, material supply, and collaborative coordination, was constructed. Finally, from the perspective of integrated basin management, recommendations for basin-wide risk prevention and control measures were proposed, thus providing a reference for transboundary river environmental risk management.

Key words: Tang River Basin, water pollution emergency, environmentally sensitive target, environmental emergency space, environmental risk source