Millennium-Long Tree-Ring Chronology Reveals Megadroughts on the Southeastern Tibetan Plateau
Millennium-Long Tree-Ring Chronology Reveals Megadroughts on the Southeastern Tibetan Plateau
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千年树木年轮揭示青藏高原东南部特大干旱
DOI:
10.3959/1536-1098-73.1.1
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发表时间:
2017-03
影响因子:
1.6
通讯作者:
Lixin Lyu
中科院分区:
文献类型:
--
作者:
Changyuan Nie;Qi-Bin Zhang;Lixin Lyu
ABSTRACT Millennium-aged trees are rare in natural forests. Here we present an 1184-year-long tree-ring width chronology from living juniper trees in the Biru area on the southeastern Tibetan Plateau. Growth-climate response analysis shows that the Biru chronology is significantly and positively correlated with late-spring (May-June) Standardized Precipitation Evaporation Index (SPEI) (r = 0.67, n = 53, p < 0.01). The tree-ring chronology explains 44.5% of the total variance of SPEI during the period AD 1957–2010. Reconstruction of May-June SPEI shows that there was a two-century-long megadrought during the late 13th to late 15th Centuries, and a seven-decade-long megadrought during AD 1630s to 1690s. Comparisons with other moisture records in the region suggest that the two-century megadrought identified in our reconstruction might be a widespread phenomenon most likely reflecting a stage of reduced Southwest Asian Summer Monsoon. Our results provide new evidence on the megadrought events on the Tibetan Plateau for the last millennium.
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影响因子:
4.6
作者:
P. Sheppard;P. Tarasov;L. Graumlich;L. Graumlich;K. Heussner;Mayke Wagner;H. Österle;L. Thompson
通讯作者:
P. Sheppard;P. Tarasov;L. Graumlich;L. Graumlich;K. Heussner;Mayke Wagner;H. Österle;L. Thompson
影响因子:
3.7
作者:
Fang K;Wilmking M;Davi N;Zhou F;Liu C
通讯作者:
Liu C
影响因子:
3
作者:
Qibin Zhang;Hongyan Qiu
通讯作者:
Qibin Zhang;Hongyan Qiu
DOI:
10.1002/joc.3370140404
发表时间:
1994-05-01
期刊:
INTERNATIONAL JOURNAL OF CLIMATOLOGY
影响因子:
--
作者:
COOK, ER;BRIFFA, KR;JONES, PD
通讯作者:
JONES, PD
影响因子:
5.5
作者:
P. Adlard;H. Fritts
通讯作者:
P. Adlard;H. Fritts