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在总结海平面变化及长江三角洲古河道分布的基础上,通过上海地区第Ⅱ至第Ⅴ承压含水层地下水化学、~(14)C年龄特证的分析,探讨了因海平面变化引起的长江及支流河道的侵蚀、堆积对地下水径流交替的影响,提出了滨海三角洲地区地下水补给、径流、排泄的一种模式。
On the basis of summarizing the sea-level change and the distribution of the ancient rivers in the Yangtze River Delta, the paper analyzes the groundwater chemistry and the age-specific characteristics of ~ (14) C in the Ⅱ ~ Ⅴ confined aquifers in Shanghai area, And the influence of the erosion and accumulation of tributary channels on the groundwater runoff alternation, a model of groundwater recharge, runoff and drainage in the coastal area of the delta is proposed.