有机农药六六六对胶州湾海域水质的影响—陆地迁移过程

Effect of HCH on the Jiaozhou Bay Waters——The Land Transfer Process of HCH

摘要: 根据1979~1984年(缺少1980年)的胶州湾水域调查资料，分析在胶州湾水域有机农药HCH的季节变化和月降水量变化。研究结果表明：在时空分布上，整个胶州湾水域，由春季的HCH含量增加，到夏季高峰，然后到秋季降低到一年中最低值。通过胶州湾沿岸水域的HCH含量变化，展示了HCH的陆地迁移过程：HCH含量变化由胶州湾附近盆地的雨量大小所决定。因此，在胶州湾水体中HCH含量的季节变化，是由陆地迁移过程所决定。HCH的陆地迁移过程范围分为三个阶段：人类对HCH的施用、HCH沉积于土壤和地表中、河流和地表径流把HCH输入到海洋的近岸水域。这可用模型框图来表示，展示了：HCH从生产到土地是由人类来决定，然而，从土地到海洋是由雨量来决定。

Abstract: By investigation data in Jiaozhou bay waters from 1979 to 1984(absent of 1980), the seasonal variation of HCH in Jiaozhou Bay and month rainfall variation around it are analyzed. The results showed that in the spatial and temporal distribution in the whole Jiaozhou bay, HCH content increased in spring, arrived at the high peak, and then fell to the low-est value in autumn during one year. The HCH content change in the coastal waters of Jiaozhou Bay presented the land transfer process of HCH: The HCH content change was determined by the rainfall in the basin near Jiaozhou bay. There-fore, the seasonal variation of HCH content in the waters of the bay was determined by the land transfer process, which was divided into three phases: the HCH use of human, the HCH sediment in the soil and land surface, the HCH transport of the rivers and runoffs into the coastal waters in the sea. The process was denoted by the schematic diagram, which un-veiled that HCH from production to land was determined by human and that it from land into sea determined by rainfall.