The evolution of its groundwater flow field is closely related to the source of recharge and the mode of discharge,but this relation is blurred by the discharge from the upper reach reservoir.

• 大武水源地是我国北方罕见的特大型地下水水源地，其地下水流场的演变与补给来源、排泄方式有密切的关系，而上游水库的放水则使这种关系变得不明朗。