基于数值模型的肥城市地下水源地保护区划分

摘要

Karst groundwater had been developed as the drinking water source in many cities in the areas of covered karst areasof northern China.There remains lots of work to do in demarcating karst water drinking source protection zones with the technique of numerical model.This research conducted the partition of karst groundwater drinking source protection zones of Feicheng City in Shandong Province by building a groundwater numerical model and executing particle tracing.The square of the first level protection zone for the drinking water source is 1.53km2, the second level is 28.4km2, and the square beyond protection zone is about 272.9km2.It is showed that protection zones divided by numerical model are reliable and rational compared with the former division.It is suitable for management and protection of groundwater resources by local government.%在北方隐伏岩溶分布地区,许多城市开发利用岩溶地下水资源作为饮用水水源,但利用数值模型方法进行岩溶水饮用水源保护区划分的工作较少.以山东省肥城市城区水源地为例,采用数值模型方法,构建地下水流数值模型,并采用质点追踪技术对岩溶水饮用水源保护区进行了划分.一级保护区面积1.53km2,二级保护区面积28.4km2,准保护区面积约272.9km2,全部位于肥城市辖区内.此次划定的保护区范围比之前划定的保护区范围更合理、准确,有利于加强地下水资源的管理和保护.