珊瑚礁区海底地下水排泄的环境效应及其珊瑚记录研究进展

姜伟; 杨浩丹; 吴星媛; 余克服; 许慎栋; 王英辉

doi:10.3969/j.issn.0253-4193.2020.11.001

珊瑚礁区海底地下水排泄的环境效应及其珊瑚记录研究进展

doi: 10.3969/j.issn.0253-4193.2020.11.001

姜伟^{1, 2, 3,},
杨浩丹^{1, 2},
吴星媛^{1, 2},
余克服^{1, 2, 3, ,},
许慎栋^{1, 2, 3},
王英辉^{1, 2}

1.
广西大学海洋学院，广西南宁 530004
2.
广西南海珊瑚礁研究重点实验室，广西南宁 530004
3.
南方海洋科学与工程广东省实验室(珠海)，广东珠海 519080

基金项目: 国家自然科学基金项目（41976059，41603091，91428203）；广西自然科学基金项目（2019GXNSFAA185022）。

详细信息

作者简介:
姜伟(1989-)，男，河北省昌黎县人，博士，副教授，主要从事珊瑚礁地质与全球变化研究。E-mail：jianwe@gxu.edu.cn

通讯作者:
余克服(1969-)，男，湖北省公安县人，博士，教授，主要从事南海珊瑚礁地质、生态与环境研究。E-mail：kefuyu@scsio.ac.cn

中图分类号: P76；P736
计量
- 文章访问数: 180
- HTML全文浏览量: 150
- PDF下载量: 43
- 被引次数: 0
出版历程
- 收稿日期: 2019-10-31
- 修回日期: 2020-02-06
- 网络出版日期: 2020-12-03
- 刊出日期: 2020-11-25

Research progress of environmental influence and coral record of submarine groundwater discharge in coral reefs

Jiang Wei^{1, 2, 3
,},
Yang Haodan^{1, 2},
Wu Xingyuan^{1, 2},
Yu Kefu^{1, 2, 3
, ,},
Xu Shendong^{1, 2, 3},
Wang Yinghui^{1, 2}

1.
School of Marine Sciences, Guangxi University, Nanning 530004, China
2.
Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, China
3.
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519080, China

摘要

摘要: 海底地下水排泄(SGD)是近岸海洋化学和生态系统演化的重要驱动因素，其携带的大量物质对珊瑚礁发育和退化具有非常重要的影响。本文综述了珊瑚礁区的SGD特征及其对珊瑚礁发育和退化的潜在生态环境效应，SGD的珊瑚替代指标以及全球各海域SGD的高分辨率珊瑚记录研究进展，并以南海北部为例探讨珊瑚礁退化的主导因素及SGD的潜在影响。研究发现，目前珊瑚礁区，尤其是岸礁区长时间序列的SGD动态变化记录的研究极为薄弱；利用珊瑚骨骼的地球化学指标来重建局部海域的SGD通量的动态历史变化具有较强的可操作性；虽然SGD极有可能是以南海北部为代表的珊瑚礁区珊瑚礁退化的重要因素，但目前无论是政府机构还是公众对SGD的关注和重视相当有限。未来的研究应该聚焦于珊瑚礁区SGD及其携带物质通量的高分辨率珊瑚记录，进而探讨SGD对珊瑚礁发育和退化影响的关键过程与机制，并提出科学合理的应对建议。
- 珊瑚礁 /
- 地球化学 /
- 海底地下水排泄 /
- 南海
Abstract: Submarine groundwater discharge (SGD) is a significant driving factor of marine chemistry and coastal ecosystem evolution, and plays a very important role in the development and degradation of coral reefs due to supplying large loads of chemicals into the coastal ocean. This paper reviews the characteristics of SGD in coral reefs and the potential ecological environment effect. Meanwhile, the northern South China Sea was taken as an example to explore the dominant factors controlling the development and degradation of coral reefs, as well as the potential effects. Results show that the research on the long time serial variations of dynamic changes of SGD in coral reefs, especially in fringing reef areas, is quite weak; it is feasible to reconstruct the historical patterns of the annual fluxes of SGD in local seas by using the geochemical coral skeletons proxies; SGD is likely to be an important factor contributing to the degradation of coral reefs in the northern South China Sea, nevertheless SGD has received limited concerns and attentions from both governmental agencies and the public. The future researches should focus on the high-resolution coral records of SGD and chemicals it carries in coral reefs, explore the key processes and mechanisms of effects from SGD on the development and degradation of coral reefs, and then offer scientific and reasonable advice.
- coral reefs /
- geochemistry /
- submarine groundwater discharge /
- South China Sea

HTML全文

图 1 珊瑚礁区SGD研究文献分布(关键词：“submarine groundwater discharge”和“coral reef”，统计于2019 年10月30日)

Fig. 1 The record of published articles about SGD in coral reefs (key words: “submarine groundwater discharge” and “coral reef”, according to statistics obtained on October 30th, 2019)

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图 2 珊瑚礁区SGD示意图（以火山岛屿为例）

Fig. 2 Schematic diagram of SGD in coral reefs (a case of volcanic island)

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图 3 南海北部三亚海域珊瑚稀土元素（REE）与钙（Ca）比值和控制SGD的降雨量相关关系（a，数据（3年滑动平均）来源于文献[26]）; 加勒比海尤卡坦半岛海域珊瑚钡（Ba）与Ca比值和控制SGD的降雨量相关关系(b，数据来源于文献[24]）

Fig. 3 The correlation between coral REE/Ca and SGD-associatived precipitation near Sanya in the northern South China Sea (a, data (3-year running average) from reference [26]); the correlation between coral Ba/Ca and SGD-associatived precipitation near Yucatan Peninsula in the Caribbean (b, data from reference [24])

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图 4 基于珊瑚稀土元素重建的南海北部海南岛三亚海域SGD通量年际变化历史（a，XL1为珊瑚代号，数据来源于文献[26]）; 南太平洋拉罗汤加岛珊瑚骨骼有机质中δ¹⁵N记录的SGD氮输入变化历史（b，RO1和RL1分别为珊瑚代号，两个黑色箭头分别代表两次农业繁荣时期的开端，青色背景代表δ¹⁵N高值时期，数据来源于文献[88]）

Fig. 4 The reconstructed annual variations of SGD flux near Sanya of Hainan Island in the northern South China Sea based on coral REE (a, XL1: coral label, data from reference [26]); the input record of N based on δ¹⁵N in coral skeleton organic material in the Rarotonga, South Pacific (b, RO1 and RL1: coral label. The black arrows show the start of two agricultural booms. The cyan background represents the elevated period of δ¹⁵N, data from reference [88])

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