Triggering of a 2500-year coral shutdown in northern South China Sea by coupled East Asian Monsoon and El Niño–Southern Oscillation

IF 4 1区地球科学 Q1 GEOGRAPHY, PHYSICAL

Global and Planetary Change Pub Date : 2024-12-09 DOI:10.1016/j.gloplacha.2024.104672

Fei Tan, Yunfeng Zhang, Guowei Fu, Qi Shi, Xiyang Zhang, Shengnan Zhou, Mingzhuang Wang, Guotao Zhang, Xiaoju Liu, Jian-xin Zhao, Hongqiang Yang

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Abstract

Rapid climate change is reshaping the ecological dynamics of coral reefs, posing significant challenges in understanding the long-term effects of environmental disturbances on reef development. In the current study, we conducted a chronological analysis and regional review of Holocene massive Porites corals in the northern South China Sea, revealing a unique episodic growth pattern, including a 2500-year growth hiatus. The findings suggest that this collapse was driven by the coupling of intensified East Asian winter monsoon and broader-scale El Niño–Southern Oscillation variability. Regional environmental drivers significantly influenced spatiotemporal variations in coral growth stagnation across the Pan-Pacific region. While future sea level rise and warming may benefit nearshore corals, the projected intensification of El Niño–Southern Oscillation variability could undermine the potential of the northern South China Sea as a coral refuge. Effective coral management and environmental mitigation measures are crucial to preventing further collapse of regional coral reefs.

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快速的气候变化正在重塑珊瑚礁的生态动态，为了解环境干扰对珊瑚礁发展的长期影响带来了重大挑战。在目前的研究中，我们对南海北部全新世的大块珊瑚进行了年代分析和区域回顾，揭示了一种独特的偶发性生长模式，包括长达 2500 年的生长中断。研究结果表明，这种崩溃是由东亚冬季季风加强和更大范围的厄尔尼诺-南方涛动变率耦合驱动的。区域环境驱动因素极大地影响了泛太平洋地区珊瑚生长停滞的时空变化。虽然未来海平面上升和气候变暖可能有利于近岸珊瑚，但预计厄尔尼诺-南方涛动变率的加剧可能会削弱南海北部作为珊瑚避难所的潜力。有效的珊瑚管理和环境缓解措施对于防止区域珊瑚礁的进一步崩溃至关重要。

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来源期刊

Global and Planetary Change 地学天文-地球科学综合

CiteScore

7.40

自引率

10.30%

发文量

226

审稿时长

63 days

期刊介绍： The objective of the journal Global and Planetary Change is to provide a multi-disciplinary overview of the processes taking place in the Earth System and involved in planetary change over time. The journal focuses on records of the past and current state of the earth system, and future scenarios , and their link to global environmental change. Regional or process-oriented studies are welcome if they discuss global implications. Topics include, but are not limited to, changes in the dynamics and composition of the atmosphere, oceans and cryosphere, as well as climate change, sea level variation, observations/modelling of Earth processes from deep to (near-)surface and their coupling, global ecology, biogeography and the resilience/thresholds in ecosystems. Key criteria for the consideration of manuscripts are (a) the relevance for the global scientific community and/or (b) the wider implications for global scale problems, preferably combined with (c) having a significance beyond a single discipline. A clear focus on key processes associated with planetary scale change is strongly encouraged. Manuscripts can be submitted as either research contributions or as a review article. Every effort should be made towards the presentation of research outcomes in an understandable way for a broad readership.