天津滨海新区围海造陆对沿海低地浅层地下水环境的影响

发布时间：2018-03-03 19:02

本文选题：滨海新区　切入点：围海造陆　出处：《地质通报》2016年10期 　论文类型：期刊论文

【摘要】：天津滨海新区被提到国家总体发展战略后,随着经济持续发展、城市化进程不断加速及产业转移,进行了大规模围海造陆,在拓展土地空间的同时,也造成了相当多的环境问题。利用滨海新区由陆到海的3条水文地质剖面获取的地下水动态变化监测数据和土壤含盐量测试结果,开展了围海造陆对沿海低地浅层地下水环境的影响研究。结果显示:1受围海造陆影响,对应的沿海低地浅层水位已经出现由陆到海逐渐增高的现象,造成地下水位反向倾斜,阻碍了地下水径流和排泄;2由陆到海浅表土壤全盐量出现逐渐增高的特征,在浅层地下水反向径流作用下,东部区域大量的盐分将被携带至沿海低地,使沿海低地盐渍化程度加重,严重影响到湿地保护和生态建设;3围海造陆对海岸带生态环境的影响是一个长期缓慢的过程,应持续监测近岸海域和陆域沿海低地生态环境的变化情况,以便提出合理的修复建议。
[Abstract]:Tianjin Binhai New Area is referred to the country's overall development strategy, with the sustained economic development, accelerating the process of city and industrial transfer, to carry out a large-scale land reclamation, land development in space at the same time, also caused considerable environmental problems. The 3 hydrogeologic profile from the land to the sea by Binhai for groundwater the dynamic changes of soil salinity monitoring data and test results, carried out the influence of reclamation on the coastal lowlands shallow groundwater. The results showed that: 1 under the influence of reclamation, the coastal lowlands shallow water level has gradually increased from the land to the ocean phenomenon, groundwater caused by reverse tilt, hinder groundwater runoff and drainage; 2 from land to sea shallow soil salt content features increased gradually, in the shallow groundwater runoff reverse under the action of the eastern region, a large amount of salt will be carried to The coastal lowland coastal lowlands, salinization degree increasing, seriously affect the wetland protection and ecological construction; 3 reclamation of coastal ecological environment is a long and slow process, should change continuously in coastal waters and land monitoring coastal lowland ecological environment, so as to put forward reasonable suggestions to repair.

【作者单位】：中国地质调查局天津地质调查中心;中国地质调查局泥质海岸带地质环境重点实验室;
【基金】：中国地质调查局项目(编号:1212011120170、1212011120089)
【分类号】：P641;P756.8

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