极地研究

极地研究 ›› 2004, Vol. 16 ›› Issue (2): 127-134.

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南极长城站及邻近海域叶绿素a次表层极大值的研究

李宝华   

  • 出版日期:2004-06-30 发布日期:2004-06-30

THE SUBALTERN OF CHLOROPHYLL A MAXIMA IN THE GREAT WALL BAY AND ADJACENT SEA, ANTARCTICA

  • Online:2004-06-30 Published:2004-06-30

PDF (PC)

1507

被引次数

6

摘要：

本文报道了1999年12月—2000年3月期间南极长城站及其邻近海域叶绿素a的含量及次表层极大值的位置和成因。研究发现,该海域在调查期间营养盐类含量均较高,它们的平均值分别为磷酸盐1.899μmol/L,硝酸盐2.177μmol/L,氨盐1.990μmol/L,亚硝酸盐0.353μmol。表明该海域营养盐非常丰富,叶绿素a含量的次表层极大值现象显著,次表层位置随水深深度的增加而加深。

关键词: 叶绿素a;营养盐;浮游植物;南极;长城站

Abstract:

This paper reported the distribution of chlorophyll a and nutrient concentrations in the Great Wall Bay and adjacent sea, Antarctica, during the 16th Chinese Antarctic Expedition (Dec. 1999 March 2000), and analyzed the cause of the subaltern of chlorophyll a maxima(SCM). The results showed that the nutrient concentrations were high during the investigation period, and the average values of nitrate, nitrite, phosphate and ammonium were 2.177, 0.353 , 1.899 and 1.990μmol/L, respectively. It revealed the enrichment of the nutrient in this water area. The SCM was significant. The depths of the SCM were between 5 and 10m depth and increased with the water depths. The study also showed that the positive relationship between chlorophyll a and nitrite concentrations.