海陆过渡带氯离子迁移规律分析研究

Analysis on Chloridion Ion Migration in Sea Land Transition Zone

摘要:

伴随全球气候变暖导致的海平面上升及沿海地区对地下水资源的超量开采，将会诱发海咸水入侵内陆地下水，导致海陆过渡带的迁移，影响区域社会经济及水资源安全。该文以山东半岛蓝色经济区为研究背景，选取区域内龙口、招远滨海区域作为研究区，首先对研究区内的地下水流场规律进行刻画，然后以模拟因子，对目前地下水超采情景下的海陆过渡带迁移规律进行量化分析研究，研究结果表明：龙口、招远滨海区域海陆过渡带的宽度约为1.5~4.5km，且内陆地下水位越高，海陆过渡带向内陆迁移的速度越慢、范围越小。该成果对研究山东半岛蓝色经济区海陆过渡带的迁移具有重要指导意义。

Abstract:

Accompanying with the rise of sea level caused by global warming and the excessive exploitation of groundwater resources in coastal areas, salt water will invade inland groundwater, lead to the migration of sea land transitional zone, and affect regional social economic and water resources security. Taking the Blue Economic Zone of Shandong Peninsula as the research background, Longkou and Zhaoyuan coastal are selected as research areas, the law of groundwater flow field in the study area is described. By using a simulation factor, the migration law of sea land transitional zone under the current situation of groundwater overexploitation is quantitatively analyzed. It is showed that the width of the sea land transition zone in Longkou and Zhaoyuan coastal areas is about 1.5~4.5km. The higher the inland groundwater level, the slower the speed and the smaller the scope of the inland migration of the sea land transition zone. The results have important guiding significance for studying the migration of the transitional zone between land and sea in the Blue Economic Zone of Shandong Peninsula.