高风险饮用水水源保护区两种划分方法对比研究——以山区某水库为例

The Application of Two Methods in the Classification of High Risk Drinking Water Source Protection Areas:Taking a Reservoir in the Mountain Area as an Example

以山区某水库为例,分别采用应急响应时间法和数值模型计算法划定某水库饮用水水源保护区,对比分析两种方法划定的保护区格局差异,以期为高风险饮用水水源地保护区的划分和调整提供案例和方法参考。结果表明,应急响应时间法和数值模型计算法划定的保护区格局相似,但两种方法在水源保护区二级区和准保护区划定范围上有所不同。针对某水库环境风险现状,提出水源保护区风险应急体系建设建议。

Taking a reservoir in the mountainous area as an example,the emergency response time method and numerical model calculation method were used to delineate the drinking water source protection area of a reservoir,respectively.The differences in the pattern of the protection areas delineated by the two methods were compared and analyzed in order to provide case studies and method references for the division and adjustment of high-risk drinking water source protection areas.The results indicated that the pattern of protected areas designated by the emergency response time method and numerical model calculation method was similar,but the two methods differ in the scope of secondary and quasi protected areas in the water source protection area.The suggestions for the construction of a risk emergency system for water source protection zones in response to the current environmental risk situation of the reservoir were proposed.