Cool water brought by upwelling in the Sanya Bay benefits corals in the background of global warming

YANG Dingtian

doi:10.1007/s13131-017-1037-8

全球变暖背景下三亚湾上升流的冷水有利于珊瑚的生存

doi: 10.1007/s13131-017-1037-8

杨顶田

中国科学院南海海洋研究所, 热带海洋环境国家重点实验室, 广州, 510301

基金项目: The National Natural Science Foundation of China under contract No. U1405234; the National Basic Research Program (973 Program) of China under contract Nos 2013CB956503 and 2016YFC0302503; the Sciences and Technologies Foundation of Guangdong Province of China under contract No. 2016A050502038; the Sciences and Technologies Foundation of Guangzhou, Guangdong of China under contract No. 201508020071.

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- 收稿日期: 2016-10-07
- 修回日期: 2016-11-02

Cool water brought by upwelling in the Sanya Bay benefits corals in the background of global warming

YANG Dingtian

State Key Laboratory of Oceanography in the Tropics, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China

摘要

摘要: 近50年来，气候变暖对全球珊瑚礁有一定的负面效应，但不同海域各有特点。为了能够弄清海南三亚湾珊瑚礁在全球变暖背景下的生存状况，本文采用卫星遥感和现场调查数据来反演三亚湾珊瑚礁分布和生长状况以及相应的环境指标。结果显示，在海南岛南部海域，每年夏季有上升流产生的冷水，而且在厄尔尼诺年也是如此。由于冷水的存在，三亚湾的珊瑚白化周热度（DHW）没有超过3（卫星遥感数据反演），在强厄尔尼诺年也是如此。对比1957-2000年三亚湾珊瑚生长和温度的关系发现，在较强的厄尔尼诺年，如1972，1991-1994和1998年，珊瑚的生长相对较快。在分析环境因素时发现，上升流产生的冷水是保护珊瑚免于白化的重要因素。
- 冷水 /
- 上升流 /
- 珊瑚 /
- 周热度 /
- 三亚湾
Abstract: It has been reported that global warming has negative effects on coral ecosystems in the past 50 years and the effects vary in different ocean environment. In order to make clear the coral reef status in the background of global warming along the south coast of Hainan Island of China, satellite and in situ data are used to retrieve the information of the coral reef status and surrounding environmental factors. The results show that cool water induced by upwelling along the south coast of Hainan Island is found in the area every summer month, especially in the relatively strong El Niño years (2002-2003 and 2005). From the NOAA satellite data, degree heating week (DHW) index does not exceed 3 in Sanya Bay even in the relatively strong El Niño years. By comparison of a coral reef growth rate in the Sanya Bay with respect to El Niño events from 1957 to 2000, coral's growth rate is relatively greater during 1972, 1991-1994 and 1998 El Niño event. By analyzing the environmental factors, it is found that the cool water induced by upwelling may be the main reason for protecting corals from global warming effects.
- cool water /
- upwelling /
- corals /
- degree heating week /
- Sanya Bay

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参考文献(38)

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全球变暖背景下三亚湾上升流的冷水有利于珊瑚的生存

doi: 10.1007/s13131-017-1037-8

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Cool water brought by upwelling in the Sanya Bay benefits corals in the background of global warming

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