Abstract:

Coastal soil salinization problem is one of the typical disasters in coastal regions, where seawater intrusion has exacerbated disasters in the past 30 years of development. In order to study the effects of seawater invasion on soil salinization process and extent, the northern coastal region of Changyi City had been chosen to be studied on the soil salinization as the typical seawater intrusion area in Laizhou Bay. Firstly, groundwater and soil samples had been collected and analyzed. Then, the influence processing of micro relief, seawater intrusion and land use to the soil salinization had been studied. The results showed that correlation coefficient between TDS and soil salt content was 0.87, seawater intrusion and soil salinization had the typical relationship. Seawater intrusion was the main factor that influenced the soil salinization in coastal region. At last, three ecological restoration measures had been proposed to control soil salinization.