印度洋海水营养盐添加模拟实验中浮游植物生长的营养盐限制作用
Nutrient limits phytoplankton growth in nutrient enrichment experiments with seawater from the Indian Ocean
查看参考文献20篇
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文摘
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借助"中国首次环球科学考察航次",在印度洋海区进行了N、Fe、N+Fe以及N+Fe+P的营养盐添加模拟实验. 通过对实验过程中水体营养盐浓度、叶绿素a(Chl-a)浓度以及温度等参数进行分析,探讨了添加不同营养盐对该实验海区浮游植物生长的影响. 结果表明,N的添加会引起浮游植物的快速爆发,而单独添加Fe并不能刺激浮游植物快速生长,N、P联合作用对浮游植物生长的影响远远大于单独N的作用. 另外,在实验海区浮游植物优先利用海水中的硝酸盐,在硝酸根耗尽后,海水中可被利用的P会促进浮游植物的生长. 实验过程中水体N/P比值的变化同叶绿素a浓度以及浮游植物生长速度(R)没有可对比性,而且N/P比值与后两者之间的相关性都差,所以认为水体中N/P比值并不能单独决定浮游植物生长. 此外,实验水体温度同Chl-a浓度和R值之间相关性分析表明,水体温度虽对浮游植物生长有重要作用,但不能控制浮游植物生长 |
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其他语种文摘
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Nutrient enrichment experiments were carried out in the Indian Ocean during the Chinese First Around-world Researching Cruise, with N, Fe,N+Fe and N+Fe+P being added in the collected surface sea water separately. Varying some parameters in the experimental water,we studied the factors that limited phytoplankton growth, such as the concentration of nutriment, chlorophyll a, temperature, and etc. The addition of nitrogen resulted in phytoplankton blooming, but the addition of iron did not stimulate the growth of phytoplankton. The combined effect of nitrogen and phosphorus to phytoplankton growth was much stronger than that of nitrogen alone. Furthermore, the utilization of nitrogen proceeded that of phosphorus;and the available phosphorus could be utilized by phytoplankton after nitrogen was exhausted. Variation of the ratios of nitrogen to phosphorus in the experimental water did not match that of chlorophyll a concentration and phytoplankton growing rate(R).The correlation between them was weak. So it was considered that the ratio of nitrogen to phosphorus cannot determine the growth of phytoplankton. In addition, water temperature played an important but not a limiting role in the phytoplankton growth in these experiments,as was shown by the correlation between the temperature of experimental water and chlorophyll a concentration or the value of R |
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来源
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海洋科学
,2010,34(7):34-40 【核心库】
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关键词
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印度洋
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营养盐
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模拟实验
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限制作用
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地址
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中国科学院广州地球化学研究所, 广东, 广州, 510640
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-3096 |
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学科
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环境科学基础理论 |
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基金
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国家自然科学基金资助项目
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文献收藏号
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CSCD:3983906
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参考文献 共
20
共1页
|
|
1.
Toggweiler J R. Glacial to interglacial changes in atmospheric carbon dioxide:the critical role of ocean surface water at high latitudes.
The Carbon Cycle and Atmospheric CO_2: Natural Variations Archaen to Present.,1985:163-184
|
被引
1
次
|
|
|
|
|
2.
Thomas W H. Surface nitrogenous and phytoplankton in the northeastern tropical Pacific Ocean.
Limnol Oceanogr,1966,11:393-400
|
被引
3
次
|
|
|
|
|
3.
Thomas E. Effect of ammonium and nitrate concentration on chlorophyll increases in natural tropical pacific phytoplankton populations.
Limnol Oceanogr,1970,15:386-394
|
被引
3
次
|
|
|
|
|
4.
Dufour P. Phytoplankton nutrient control in the oligotrophic South Pacific subtropical gyre.
Mar Ecol Prog Ser,1999,179:285-290
|
被引
5
次
|
|
|
|
|
5.
Dufour P. Nrtrient control of phytoplankton biomass in atollagoons and Pacific ocean waters: Studies with factorial enrichment bioassays.
J Exp Mar Bio Ecol,1999,234:147-166
|
被引
6
次
|
|
|
|
|
6.
Myers V B. Phosphorus and nitrogen limited phytoplankton productivity in northeastern Gulf of Mexico coastal estuaries.
Estuaries and Nutrients,1981:569-582
|
被引
6
次
|
|
|
|
|
7.
Martinez L A. Nitrogen fixation by floating diatom mats: A source of new nitrogen to oligotrophic ocean waters.
Science,1983,221:152-154
|
被引
2
次
|
|
|
|
|
8.
王晓伟. 大亚湾海域春季浮游植物生长的限制性营养元素.
中国水产科学,2007,14(5):836-842
|
被引
6
次
|
|
|
|
|
9.
朱艾嘉. 氮、磷对大亚湾大鹏澳海区浮游植物群落的影响Ⅰ．叶绿素a与初级生产力.
热带海洋学报,2008,27(1):38-45
|
被引
12
次
|
|
|
|
|
10.
王玉珏. 台湾海峡上升流区浮游植物对营养盐添加的响应.
生态学报,2008,28(3):1321-1327
|
被引
15
次
|
|
|
|
|
11.
刘媛. 东、黄海典型海区浮游植物对营养盐添加的响应.
厦门大学学报(自然科学版),2004,43(增刊):147-152
|
被引
14
次
|
|
|
|
|
12.
王勇. 胶州湾浮游植物对营养盐添加的响应关系.
海洋科学,2002,26(4):8-12
|
被引
17
次
|
|
|
|
|
13.
王勇. 胶州湾营养盐限制浮游植物生长的初步模拟现场实验研究.
海洋科学,2002,26(10):55-59
|
被引
6
次
|
|
|
|
|
14.
D'Elia C F. Nutrient enrichment studies in a coastal plain estuary: Phytoplankton growth in large-scale continuous culture.
Can J Fish Aquat Sci,1986,43:397-406
|
被引
4
次
|
|
|
|
|
15.
Fisher T R. Nutrient limitation of phytoplankton in Chesapeake Bay.
Mar Ecol Prog Ser,1992,82:51-63
|
被引
50
次
|
|
|
|
|
16.
Dugdale R C. Silicate regulation of new production in the equatorial Pacific upwelling.
Nature,1998,391:270-273
|
被引
20
次
|
|
|
|
|
17.
Smayda T J. Novel and nuisance phytoplankton blooms in the sea:evidence for a global epidemic.
Toxic marine phytoplankton.,1990:29-40
|
被引
1
次
|
|
|
|
|
18.
Coale K H. A massive phytoplankton bloom induced by an ecosystem-scale iron fertilization experiment in the equatorial Pacific Ocean.
Nature,1996,383:495-501
|
被引
67
次
|
|
|
|
|
19.
Boyd P W. A mesoscale phytoplankton bloom in the polar Southern Ocean stimulated by iron fertilization.
Nature,2000,407:695-702
|
被引
67
次
|
|
|
|
|
20.
Tsuda A. A mesoscale iron enrichment in the Western Subarctic Pacific Induces a Large Centric Diatom Bloom.
Science,2003,300:958-961
|
被引
23
次
|
|
|
|
|
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