| 摘要: |
| 基于莱州市2个海水入侵监测断面2011—2016年的监测数据, 分析了研究区域地下水氯度、海水入侵距离和速率的发展变化趋势, 探讨了海水入侵距离与降水量的关系。分析结果表明: 研究区域2013年地下水氯度最高, 2011—2016年呈现波动变化; 离岸距离与地下水氯度服从幂函数分布,海庙断面海水入侵距离远大于朱旺断面且变化较大, 朱旺断面海水入侵趋势较为稳定; 研究区域2014年海水入侵速度最快, 之后呈减轻趋势, 海水入侵距离与降水量呈现明显的负相关关系, 2014年降水量的急剧减少, 是当年海水入侵严重的主要因素之一。本研究为莱州市防灾减灾管理提供参考依据。 |
| 关键词: 海水入侵 地下水氯度 海水入侵距离 降水量 莱州市 |
| DOI：10.11759/hykx20161228001 |
| 分类号: |
| 基金项目:海洋公益性行业科研专项(201205025); 国家海洋局海域管理技术重点实验室开放基金(201608); 水生动物营养与饲料“泰山学者”岗位基金(HYK201004) |
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| Development trend analysis of seawater intrusion in Laizhou from 2011 to 2016 |
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ZHAO Jing-li,DENG Yue,XU Yan-dong,YU Long
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| Abstract: |
| Monitoring data of two seawater intrusion sections in Laizhou from 2011 to 2016 were used to analyze the development of groundwater chlorinity, seawater intrusion distance, and velocity and determine the relationship between seawater intrusion distance and precipitation. The results indicated that groundwater chlorinity reached the highest level in 2013 and fluctuated from 2011 to 2016, and the relationship between chlorinity and offshore distance followed the power function. The seawater intrusion distance of Haimiao section changed greatly and was much larger than that of Zhuwang section. The seawater intrusion trend was more stable in Zhuwang section. The seawater intrusion rate was the fastest in 2014 and then decreased. The seawater intrusion distance showed a negative correlation with precipitation. The sharp decline in precipitation might be one of the important reasons for the severe seawater intrusion in 2014. This result can be used as a reference for disaster prevention and reduction management in Laizhou. |
| Key words: seawater intrusion groundwater chlorinity seawater intrusion distance precipitation Laizhou |
