| 9810号台风过程厦门近岸海域POC的变化特征 |
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| 引用本文： | 薛健宏,杨逸萍,郭卫东,胡明辉.9810号台风过程厦门近岸海域POC的变化特征[J].台湾海峡,2000,19(3):269-275. |
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| 作者姓名： | 薛健宏 杨逸萍 郭卫东 胡明辉 |
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| 作者单位： | 厦门大学亚热带海洋研究所,厦门,361005 |
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| 基金项目： | 国家自然科学基金!资助项目(49776301号) |
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| 摘 要： | 本文研究了９８１０号台风影响下九龙江口及厦门西港表层海水颗粒有机碳（ＰＯＣ）的变化特征及其与某些环境因子的关系，除厦门西港低潮水外，台风期间ＰＯＣ含量的迅速增大，此“冲击期”共维持３ｄ后ＰＯＣ值迅速回落，进入“恢复期”。台风期间，九龙江口高低潮，厦门西港高潮表层水ＰＯＣ含量分别为０．７３９、１．３１９和０．８４８ｍｇ／ｄｍ＾３，是非台风状况下的１．１、１．９和１．４倍，陆源有机物的输入和底质再悬浮作用是控制表层水ＰＯＣ含量的主要因素，而厦门西港低潮水ＰＯＣ含量受台风作用影响较小，碎屑ＰＯＣ为厦门近岸海域表层海水ＰＯＣ的主要组成部分。ＰＯＣ与溶解态Ｎ、Ｐ营养盐有一定正相关性，暗示其可能来自颗粒物有机Ｎ、Ｐ的生物降解。
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| 关 键 词： | 颗粒有机碳 厦门近岸海域 9810号台风 POC 海水 |
Variation characteristics of POC in Xiamen coastal area during Typhoon 9810 process |
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| Xue Jianhong,Yang Yiping,Guo Weidong,Hu Minghui.Variation characteristics of POC in Xiamen coastal area during Typhoon 9810 process[J].Journal of Oceanography In Taiwan Strait,2000,19(3):269-275. |
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| Authors: | Xue Jianhong Yang Yiping Guo Weidong Hu Minghui |
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| Abstract: | The variation characteristics of particulate organic carbon(POC) in Jiulongjiang Estuary and Western Xiamen Harbour, and its relationships with some environmental factors under influence of Typhoon 9810 have been studied. The results show that the contents of POC increase quickly during the typhoon process except the low tide of Western Harbour. This "dash period " maintains three days. Then the contents reduce rapidly at the "recovery period". The average contents of POC during the high and low tide of Jiulongjiang Estuary, and the high tide of Western Xiamen Harbour are 0.739,1.319 and 0.848 mg/dm 3 respectively, which are 1.1, 1.9 and 1.4 times higher than that of non typhoon period. The input of terrestrial organic matter and resuspension of bottom sediments are major factors controlling contents of POC .The influence of typhoon process on the content of POC at the low tide of Western Xiamen Harbour is small. POC(D)(detrital POC) is a major composition of total POC in surface water of Xiamen coastal area.There is a positive correlation between the contents of POC and that of DIN and DIP, suggesting that the increase of dissolved nitrogen and phosphorus nutrients in surface water may partly come from the bio decomposition of organic matter during the typhoon process. |
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| Keywords: | Particulate organic carbon typhoon Xiamen coastal area |
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