The 1997-1998 El Nino event recorded by a stalagmite from central China

被引：5

作者：

Liu, Shuhua ^{[1
]}

Peng, Xiaotao ^{[1
]}

Chen, Qiong ^{[1
]}

Qin, Shijiang ^{[2
]}

Zhao, Jianxin ^{[3
]}

Feng, Yuexing ^{[3
]}

Luo, Shangde ^{[4
]}

Zhou, Houyun ^{[1
,2
]}

机构：

[1] South China Normal Univ, Sch Geog, Guangzhou 510631, Guangdong, Peoples R China

[2] Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China

[3] Univ Queensland, Sch Earth Sci, Radiogen Isotope Facil, Brisbane, Qld 4072, Australia

[4] Natl Cheng Kung Univ, Dept Earth Sci, Tainan 701, Taiwan

来源：

QUATERNARY INTERNATIONAL | 2018年 / 487卷

基金：

中国国家自然科学基金;

关键词：

Stalagmite; Central China; El Nino; delta O-18; Growth rate; ASIAN SUMMER MONSOON; ENSO; CLIMATE; RAINFALL; SPELEOTHEM; CAVE; PRECIPITATION; VARIABILITY; DELTA-O-18; DEPOSITION;

D O I：

10.1016/j.quaint.2017.11.026

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

The El Nino-Southern Oscillation (ENSO) is one of the most important oceanic and atmospheric phenomena that cause global climate variations. In this study, we reported a stalagmite delta O-18 record from Shizi cave in central China, which clearly shows a prominently positive variation during 1997-1998 CE. This delta O-18 variation correlates well with a thinner annual layer that indicates a decrease in the growth rate, possibly due to a reduction of the rainfall amount near our study site caused by the 1997-1998 El Nino event. This hypothesis is supported by a comparison of the variations of the rainfall amount near the study site in terms of the southern oscillation index (SOI) for the last 60 years, which indicates that almost all of the El Nino events lead to a reduced rainfall amount. The results suggest that speleothems deposited in central China may potentially reflect El Nino activity. (C) 2017 Elsevier Ltd and INQUA. All rights reserved.

引用

页码：71 / 77

页数：7

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