![]() |
个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:中科院兰州冰川所
学位:博士
所在单位:水利工程系
电子邮箱:lizhijun@dlut.edu.cn
Physical structure and vertical distribution of chlorophyll a in winter sea ice from the northwestern Weddell Sea, Antarctica
点击次数:
论文类型:期刊论文
发表时间:2010-05-01
发表刊物:ACTA OCEANOLOGICA SINICA
收录刊物:SCIE、CSCD、Scopus
卷号:29
期号:3
页面范围:97-105
ISSN号:0253-505X
关键字:physical structure; chlorophyll a; Antarctica; winter sea-ice
摘要:The investigation on sea-ice biology in combination with physics, chemistry and ecology was carried out in the northwestern Weddell Sea, Antarctica, during the cruise ANT/XX III-7 on board POLARSTERN in the austral winter (August-October) in 2006. The distribution of chlorophyll a was measured and related to sea ice texture. The mean concentrations of chlorophyll a in the sea ice varied considerably with ice texture. The concentration of chlorophyll a per core ranged from 2.10-84.40 mu g/dm(3) with a mean of 16.56 mu g/dm(3). And the value of R (chlorophyll a / gross chlorophyll) ranged from 0.79-0.83. These high winter chlorophyll values indicate that primary production is considerable and confirms that there is significant primary production in Antarctic sea ice during winter. Thus this constitutes a major proportion of southern ocean primary production and carbon flux before the sea ice retreats.