2004年夏季台湾海峡上升流海域悬浮颗粒物粒径谱分析

叶翔; 李炎; 黄邦钦; 胡毅; 陈坚

2004年夏季台湾海峡上升流海域悬浮颗粒物粒径谱分析

叶翔¹,
李炎^1,,
黄邦钦¹,
胡毅²,
陈坚²

1.
近海海洋环境科学国家重点实验室(厦门大学), 福建, 厦门, 361005;国家海洋局, 第三海洋研究所, 福建, 厦门, 361005
2.
The Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China

基金项目: 台湾浅滩沙波群地貌动力过程的短尺度效应(国家自然科学基金项目40476023);台湾海峡南部上升流区浮游植物对海洋环境年际变动的响应研究(国家自然科学基金重点项目40331004)

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出版历程
- 收稿日期: 2007-01-04
- 修回日期: 2007-04-20

Suspended particle size spectra of upwelling area in the Taiwan Strait during the summer of 2004

1.
State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China;Environmental Science Research Center, Xiamen University, Xiamen 361005, China
2.
The Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China

摘要

摘要: 利用2004年夏季台湾海峡南部海域的现场激光粒度仪剖面测量数据,运用海洋食物链的粒径谱理论,分析了悬浮颗粒物的Sheldon谱图和正态化谱图的剖面分布精细结构。横跨台湾海峡沿岸及浅滩外斜上升流的A和B两断面Sheldon粒径谱类型相近,正态化谱图的斜率r的范围从-0.79到-0.65,在明显高于寡营养海域的水平上波动。斜率r的高值带或高变幅带,在上升流系高叶绿素带及叶绿素最大层的周边或前端的呈斑状分布。海洋食物链的粒径谱分析结果支持关于台湾海峡南部上升流生态系高生产力、短食物链和高营养转换效率的宏观认识,并深化对营养转换效率分布精细结构的了解。现场激光粒度仪可发展为探索海洋食物链时空分布精细结构的常备传感器。
- 粒径谱 /
- 营养转换效率 /
- 上升流 /
- 激光粒度仪 /
- 台湾海峡
Abstract: Based on size spectrum theory,field data measured by laser particle size analyzer were used to analyze Sheldon size spectra and normalized size spectra of suspended particle in the southern Taiwan Strait during summer,2004. The results showed that the patterns of Sheldon size spectra were similar at all stations in transects A and B. In normalized size spectra,the range of slopes was -0.79 to -0.65. Influenced by coastal upwelling of Taiwan Strait and upwelling around the Taiwan Shoal,the slopes were high around the high chlorophyll area or the chlorophyll maximum layer. This indicated that the process of up-welling was in favor of developing locally of biological food chain with high trophict ransfer efficiency. The in situlaser particle size analyzer could beregar ded as a basic sensor to detect finestructure for trophic transfer efficiency.
- size spectra /
- trophic transfer efficiency /
- upwelling /
- laser particle size analyzer /
- Taiwan Strait

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