Mid-Holocene coral reef bleaching and recovery in the South China Sea and its implications for the modern Great Barrier Reef

南海全新世中期珊瑚礁白化和恢复及其对现代大堡礁的影响

• 批准号: LX0559831
• 负责人: Prof Jian-xin Zhao
• 金额: $ 5.84万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Linkage - International
• 财政年份: 2005
• 资助国家: 澳大利亚
• 起止时间: 2005-01-01 至 2006-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LX0559831
• 关键词: Mid; Holocene; coral; reef; bleaching

Strong evidence shows the mid-Holocene was 1-2 ºC warmer than the present, implying a greater probability for coral bleaching. We have collected well-preserved mid-Holocene reef corals from the northern South China Sea, which contain growth hiatuses reflecting bleaching and mortality. We propose to use high-resolution Sr/Ca, d18O and microstructure analysis and high-precision U-series dating of coral growth bands to determine the season and sea-surface temperature when each growth hiatus occurred and to establish the timing and duration of the growth hiatus. Reconstructed mid-Holocene coral bleaching history has important implications for management of the Great Barrier Reef during predicted global warming.

强有力的证据表明，全新世中期比现在温暖1-2 ºC，这意味着珊瑚漂白的可能性更大。我们从南海北方采集了保存完好的中全新世珊瑚礁，其中含有反映白化和死亡的生长间断。我们建议使用高分辨率的Sr/Ca，d18 O和微观结构分析和高精度的U-系列测年的珊瑚生长带，以确定季节和海面温度时，每个生长间隙发生，并建立生长间隙的时间和持续时间。重建中全新世珊瑚漂白的历史有重要的意义，在预测的全球变暖的大堡礁的管理。