摘要
根据1981年的胶州湾水域调查资料,分析了有机农药六六六(HCH)在胶州湾水域的分布、迁移和季节变化。结果表明,胶州湾水域在夏季HCH的污染较重,而春季较轻。在时间分布上,在整个胶州湾夏季的表层和底层水体中的HCH含量几乎都高于春季。在空间分布上,胶州湾的东北部水域海泊河、李村河和娄山河的入海口,为湾的东北部近岸水域提供了河流输送的HCH。因此认为,污染源是面污染源,由入湾河流形成的。通过HCH的陆地迁移过程和水域迁移过程的分析发现,HCH的表层含量高,经沉降,HCH的底层含量就高,而且,HCH入海后沉降较快。根据HCH的表、底层的垂直分布和水平分布,提出了在春、夏季的HCH在胶州湾水域迁移过程的模型框图,表明了HCH的运动轨迹,清楚的展现了HCH在春、夏季的表、底层分布规律。
Based on the investigation data obtained in Jiaozhou Bay in 1981, HCH （an organic pesticide） distribution, displacement, and seasonal variation are analyzed. It is shown from the results that the HCH pollution becomes heavier in summer and lighter in spring in the Jiaozhou Bay area. The temporary distribution is that either the surface layer HCH content or the bottom layer is higher in summer than in spring at the most places in Jiaozhou Bay. The spacial distribution is that the most of HCH is brought into the northeast of Jiaozhou Bay, where the Haipo River, the Licun River, and the Loushan River flow into the sea. Therefore HCH is from an areal pollution source in the river catchment area. It is further learnt from the analysis of the HCH transport process from the land to the sea that the bottom layer HCH content is always high where the surface layer HCH content is high and that the quick HCH subsidence takes place after HCH has been brought into the sea. Furthermore, base on the vertical and horizontal distribution, a schematic diagram can be drawn showing a conceptual model for the HCH displacement process and the movement trajectories in the Jiaozhou Bay area in spring and summer, so that the HCH distribution ragularity becomes clear in either the surface layer or the bottom layer in the two seasons.
出处
《海岸工程》
2009年第2期69-77,共9页
Coastal Engineering
基金
国家海洋局海洋溢油鉴别与损害评估技术重点实验室基金资助--溢油鉴定技术评估(07EMC08)
中国科学院知识创新工程重要方向项目--长江口及其附近海域的营养盐的变化过程(KZCX2-207)
国家海洋局北海监测中心主任科研基金资助--长江口
胶州湾
莱州湾及其附近海域的生态变化过程(05EMC16)
关键词
HCH
分布
迁移
过程
胶州湾
HCH
distribution
displacement
process
Jiaozhou bay
