盐田填土造陆区盐渍化的调查与分析  

Survey and analysis of land salinization in sea reclamation area built on salt pan

作　　者：冷祥阳 许士国[1] 许翼[1] 

机构地区：[1]大连理工大学建设工程学部水利工程学院,辽宁大连116024

出　　处：《东北水利水电》2015年第9期19-21,66,共4页Water Resources & Hydropower of Northeast China

基　　金：国家自然科学基金项目(51279022)

摘　　要：填海造陆是人类开发利用滨海地区的重要方式,在缓解土地需求矛盾的同时,也给回填区带来了盐渍化的危害。近些年,大量填海工程直接建立在盐田之上,这在一定程度上会加剧回填区的地表盐渍化。文中通过实地考察气候条件相近的典型填海工程,初步分析盐田对建立在其上的填海造陆工程的危害。结果表明,回填区表层的土壤含盐量与附近盐田的土壤含盐量具有一致性,且随着年份的推移两者的含盐量更加接近。土壤颗粒级配对水盐运移的影响是基于不同粒径土壤对水盐的渗透能力和土壤颗粒吸附能力的差异。Sea reclamation is an important way to develop and use coastal area for human. The method of sea reclamation could release the demand and supply contradiction of the land, but it brings the salinization hazards for the backfill areas. In recent years, the large number of sea reclamation projects directly built on the salt pan,which would aggravate the surface salinization the backfill area. Through the field survey on typical sea reclamation with similar climatic conditions, the paper preliminary analyzes the hazards of salt pans to the reclamation projects built on the slat pan. The results show that the soil salt contents have the consistency for the surface soil of the backfill area and the soil of salt pan in nearby and the both salt contents is more come closer along with the year increase. The influence of the grain composition on the salt and water migration is based on the differences of different particle size soil on water slat and the adsorption capacity of soil particles.

关 键 词：盐田 填土造陆 回填区 盐渍化 颗粒级配 

分 类 号：X53[环境科学与工程—环境工程]