Increasing summer rainfall in arid eastern-Central Asia over the past 8500 years

被引：119

作者：

Hong, Bing ^{[1
]}

Gasse, Francoise ^{[2
]}

Uchida, Masao ^{[3
]}

Hong, Yetang ^{[1
]}

Leng, Xuetian ^{[4
]}

Shibata, Yasuyuki ^{[3
]}

An, Ning ^{[1
]}

Zhu, Yongxuan ^{[1
]}

Wang, Yu ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Guizhou, Peoples R China

[2] CEREGE, F-13545 Aix En Provence 04, France

[3] Natl Inst Environm Studies, Ctr Environm Measurement & Anal, Tsukuba, Ibaraki 3050053, Japan

[4] NE Normal Univ, Inst Peatmire, Changchun 130024, Jilin, Peoples R China

来源：

SCIENTIFIC REPORTS | 2014年 / 4卷

基金：

中国国家自然科学基金;

关键词：

SOUTHERN OSCILLATION; HIGH-RESOLUTION; MONSOON RECORD; ABRUPT CHANGES; HOLOCENE; PACIFIC; CLIMATE; DYNAMICS; CHINA; LAKE;

D O I：

10.1038/srep05279

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A detailed and well-dated proxy record of summer rainfall variation in arid Central Asia is lacking. Here, we report a long-term, high resolution record of summer rainfall extracted from a peat bog in arid eastern-Central Asia (AECA). The record indicates a slowly but steadily increasing trend of summer rainfall in the AECA over the past 8500 years. On this long-term trend are superimposed several abrupt increases in rainfall on millennial timescales that correspond to rapid cooling events in the North Atlantic. During the last millennium, the hydrological climate pattern of the AECA underwent a major change. The rainfall in the past century has reached its highest level over the 8500-year history, highlighting the significant impact of the human-induced greenhouse effect on the hydrological climate in the AECA. Our results demonstrate that even in very dry eastern-Central Asia, the climate can become wetter under global warming.

引用

页数：10

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