摘要
通过山东沿海地下咸淡水突变界面位置与地下淡水位动态的相关分析发现,一旦地下淡水位发生变化,成淡水突变界面就会发生相应位移,即地下淡水位升高时,成淡水突变界面向海侧移动,反之则海水向陆地地下入侵,与Ghyben-Herzberg成淡水界面模型基本相符。分析了自然因素中引起海水入侵的基本条件,但最终导致海水入侵发生发展的是人为因素——过度超采地下淡水、采补失调及其他人为活动影响。
Through the correlation analysis of the dynamic state of fresh water table and the position of the sudden change interface of fresh and salt ground water along Shandong coastal area, the authors found out that the sudden change interface of fresh and salt ground water will displace accordingly once the fresh water table is changed,When the fresh water table raises, the interface will displace toward the sea; conversely, the sea water will intrude toward the land. This result mainly conforms to the fresh and salt water interface model of Ghyben-Herzberg. After analysing the basic natural factors causing sea water intrusion, the authors pointed out that man-made factors lead to the happening and development of sea water intrusion finally. These man-made factors include drawing fresh ground water excessively, imbalance of drawing and compensation and other effects of human activities.
出处
《海岸工程》
北大核心
1992年第1期55-60,共6页
Coastal Engineering
