文献类型：期刊文献

中文题名：近500年西沙群岛海面温度年际变化的珊瑚记录及其环境意义

英文题名：ANNUAL RESOLUTION SEA SURFACE TEMPERATURE RECONSTRUCTED QUANTITATIVELY BY PORITES CORAL GROWTH RATE IN THE XISHAQUNDAO ISLANDS DURING THE PAST FIVE CENTURIES AND THEIR ENVIRONMENTAL SIGNIFICANCE

作者：陶士臣[1,2];张会领[3];余克服[4];施祺[1,2];孟敏[4];严宏强[1,2];刘国辉[5];陈特固[1]

机构：[1]中国科学院边缘海与大洋地质重点实验室,中国科学院南海海洋研究所,中国科学院南海生态环境工程创新研究院,广东广州510301;[2]南方海洋科学与工程广东省实验室(广州),广东广州511458;[3]广东海洋大学海洋工程学院,广东湛江524088;[4]广西大学珊瑚礁研究中心,广西南海珊瑚礁研究重点实验室,广西大学海洋学院,广西南宁530004;[5]韩山师范学院地理系,广东潮州521041

年份：2021

卷号：41

期号：2

起止页码：411

中文期刊名：第四纪研究

外文期刊名：Quaternary Sciences

收录：CSTPCD、、CSCD2021_2022、北大核心、CSCD、北大核心2020

基金：南方海洋科学与工程广东省实验室(广州)(批准号:GML2019ZD0206);国家自然科学基金项目(批准号:41302281、42030502、41776128和42090041);中国地质科学院岩溶地质研究所岩溶动力学重点实验室开放基金项目(批准号:KDL201501);中国科学院边缘海与大洋地质重点实验室开放基金项目(批准号:MSGL15-09);广东海洋大学创新强校工程项目(批准号:230419102)共同资助。

语种：中文

中文关键词：南海;西沙群岛;小冰期;珊瑚生长率;海温;西沙海温

外文关键词：South China Sea;Xishaqundao Islands;Little Ice Age;Porites coral growth rates;Sea Surface Temperature(SST),Xisha-SST

中文摘要：在南海西沙群岛(15.76°~17.13°N,111.18°~112.90°E)5条年分辨率的滨珊瑚生长率(即每年生长宽度,mm/a或cm/a)序列和4个U-Th年龄的基础上,根据珊瑚生长率与器测海温的显著正相关关系特征并建立的转换方程,定量重建了近500年(1520~2007 A.D.)连续的年分辨率的西沙海温历史。这一时期的海温变化可以分为两个主要阶段:1)1520~1825 A.D.以小幅波动为主,略有下降(-0.21±0.07℃)。2)1826~2007 A.D.整体呈上升趋势(0.93±0.15℃),其中1826~1899 A.D.快速上升(1.0±0.13℃);1900~1971 A.D.小幅波动,略有下降(-0.16±0.19℃);1972~2007 A.D.再次上升(0.55±0.30℃)。同时,近500年来西沙海温具有显著的年际、十年际和多年代际周期,分别对应于ENSO、太阳活动和太平洋多年代际涛动(PDO)。珊瑚生长率记录的西沙海域持续升温始于1820年代后期,与西太平洋暖池区的升温起始时间相当,但略早于全球其他区域,体现了南海海域对赤道海域海洋环境变化的敏感响应。

外文摘要：We use five annual-resolution growth rate(i.e.growth width per year(mm/a or cm/a))series and four U-Th ages of Porites coral samples,based on the significantly positive correlation(R2=0.61,n=47,p<0.0001)and transfer equation between Porites coral growth rate and instrumental sea surface temperature(SST)in the Xishaqundao Islands(15.76°~17.13°N,111.18°~112.90°E),South China Sea(SCS),we quantitatively reconstructed continuously annual resolution growth rate-SST(i.e.Xisha-SST)during 1520~2007 A.D.The change of Xisha-SST can be divided into two main stages(1520~1825 A.D.and 1826~2007 A.D.).It is dominated by small fluctuations in the first stage(1520~1825 A.D.),with a slight decrease(-0.21±0.07℃).It showed an overall upward trend(0.93±0.15℃)in the second stage(1826~2007 A.D.),of which Xisha-SST rose rapidly(1.00±0.13℃)from 1826 A.D.to 1899 A.D.,it is declined slightly(-0.16±0.19℃)during 1900~1971 A.D.,and then,it continued to rise(0.55±0.30℃)since 1972 A.D.to 2007 A.D.The Xisha-SST has significant interannual(3~8 a),decadal(10.3 a)and multi-decadal(54 a)cycles in the past five centuries,which correspond to the ENSO,solar activity,and the Pacific Decadal Oscillation(PDO),respectively.The continuous warming of the Xisha-SST seems to be onset in the late-1820 s,which was comparable to the onset time of the SST/temperature in the western Pacific Ocean and the monsoon region in the Southeast China,while it seems to be earlier than that in other regions of the world,this characteristics reflect the sensitive response of the SCS to the changes in the marine environment of the equatorial region.