【摘要】 多年冻土作为冷生隔水层,影响到地下水的补给、径流及排泄。融区的分布可增加地下水的交替强度和降低地下水的矿化度。在断层破碎带及其他富水性好的地段,多年冻土厚度变化较大。更多还原

【Abstract】 Permafrost, as, an impermeable frost-seam, increases the artesian pressure and depth of groundwa-ter. The seam lies below the permafros layer. The recharge and discharge of groundwater are conducted mainly through taliks and shattered fault zones. Existence of taliks with a large area can increase the exchange intensity of groundwater and lower mineralization of groundwater.更多还原