| 1999/2000年夏季南极普里兹湾及湾口区叶绿素a和初级生产力 |
| |
| 引用本文： | 刘子琳,蔡昱明,宁修仁,刘诚刚,朱根海,王小谷.1999/2000年夏季南极普里兹湾及湾口区叶绿素a和初级生产力[J].极地研究,2001,13(1):1-12. |
| |
| 作者姓名： | 刘子琳 蔡昱明 宁修仁 刘诚刚 朱根海 王小谷 |
| |
| 作者单位： | 国家海洋局第二海洋研究所, |
| |
| 基金项目： | 国家“九五”科技攻关项目（98-927-01-02）和国家自然科学基金项目（49876032）资助。 |
| |
| 摘 要： | 20 0 0年 1月 1 9日至 2 7日在 70°3 0′E- 75°3 0′E,6 2°S以南的南极普里兹湾近岸陆架区的陆隆向深海区设三条纵断面进行浮游生物现存量、真光层深度和光合作用速率的现场观测。并在冰间湖站 - 1 2进行连续昼夜观测。结果表明 ,观测海区叶绿素 a浓度高值位于近岸海湾、冰间湖和测区中部的陆坡区 ;陆坡中部站 - 6和 - 8,0 - 5 0 m的浅水层为叶绿素 a高值区 (2 .1 6- 5 .0 8μg/dm3 )。各测站平均叶绿素 a浓度 2 5 m次表层 (1 .49± 1 .6 1 μg/dm3 )高于表层 (1 .1 4±1 .1 9μg/dm3 ) ,5 0 m以下更深层的浓度随深度的增加而降低 ,2 0 0 m层叶绿素 a浓度仅 0 .0 3±0 .0 2μg/dm3 。昼夜观测结果表明表层叶绿素 a浓度在南极夏季的午后出现最大值 ,晨间出现最小值 ;2 5 m以浅水层的叶绿素 a浓度明显高于深层水 ,与封冰消融冰藻的释放有关。测区真光层潜在初级生产力为 0 .76 - 1 2 .5 9mg C/(m3· h) ,平均值为 4.0 1± 4.0 7mg C/(m3· h) ;海湾和陆架区现场生产力均超过 1 .5 g C/(m2 · d) ,陆坡、深海区约 0 .5 g C/(m2 · d)。高生产力位于高生物量的近岸海湾、陆架冰间湖区。光合作用同化数在 0 .88- 3 .1 0 mg C/(mg Chla· h)。表层叶绿素a浓度与海水中溶解氧浓度呈紧密相关 (Y=0 .0 5 9X
|
| 关 键 词： | 叶绿素a 初级生产力 二氧化碳 普里兹湾 南极 |
PRIMARY PRODUCTIVITY AND STANDING STOCK OF PHYTOPLANKTON IN THE PRYDZ BAY AND THE ADJACENT NORTHERN SEA AREA DURING THE AUSTRAL SUMMER OF 1999/2000 |
| |
| Liu Zilin,Cai Yuming,Ning Xiuren,Liu Chenggang,Zhu Genhai,Wang Xiaogu.PRIMARY PRODUCTIVITY AND STANDING STOCK OF PHYTOPLANKTON IN THE PRYDZ BAY AND THE ADJACENT NORTHERN SEA AREA DURING THE AUSTRAL SUMMER OF 1999/2000[J].Chinese Journal of Polar Research,2001,13(1):1-12. |
| |
| Authors: | Liu Zilin Cai Yuming Ning Xiuren Liu Chenggang Zhu Genhai Wang Xiaogu |
| |
| Abstract: | During CHINARE 15(Dec. 1998 Mar. 1999), a lake core 67.5 cm in length, was sampled in Y2 lake, which is located on the Ardley Island, Antarctica. The concentrations of some chemical elements in Y2 lake sediments were analyzed. According to comparative research on elementary characters of sediments in Antarctic West Lake, fresh penguin dropping as well as guano soil on the Ardley Island and Pacific Island in South China Sea, it presents that the Y2 lake sediments were ameliorated by penguin dropping. The result of element cluster analysis shows that the type elements in the sediment impacted by penguin dropping include Sr,F,S,P,Ca,Se,Cu,Zn and Ba. This can provide a base for further interpreting the climatic and environmental event recorded in the sediment. |
| |
| Keywords: | chlorophyll a primary productivity CO 2 Prydz Bay Antarctic |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《极地研究》浏览原始摘要信息 |
| 点击此处可从《极地研究》下载免费的PDF全文 |
|
