论文部分内容阅读
本文利用 1 989/1 990年度中国第六次南极考察期间所获得的调查资料 ,探讨了普里兹湾营养盐分布及其与生物生产力间的相互关系。结果表明 ,在艾默里冰架外侧存在大片温暖高盐水域 ,该水域真光层内营养盐含量较低 ,溶解氧饱和度高达 1 2 0 %,叶绿素 A含量大于 1 .0 0 mg/m3 ,表明了普里兹湾是南极高生产力区。化学要素垂直分布如温度一样出现了强跃层 ,并于3 5 0 m层出现了异常的营养盐垂直分布 ,但盐度无明显跃层存在。最后讨论了引起异常分布的原因。
Based on the survey data obtained during the 6th Antarctic Expedition in China from 1989 to 1990, this paper discusses the distribution of nutrients in Prydz Bay and its relationship with the biological productivity. The results showed that there was a large area of warm and high salt water outside the Amory ice shelf. The content of nutrients in the true light layer was lower, the dissolved oxygen saturation was as high as 120% and the content of chlorophyll A was more than 1.0 mg / m3. It shows that Prydz Bay is the Antarctic High Productivity Area. The vertical distribution of chemical elements appeared as strong thermocline as temperature, and anomalous nutrient vertical distribution was found at 350 m, but there was no obvious thermocline. Finally, the cause of the abnormal distribution is discussed.