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干旱区科学  2016, Vol. 8 Issue (4): 492-505    DOI: 10.1007/s40333-016-0009-8
  学术论文 本期目录 | 过刊浏览 | 高级检索 |
Drought fluctuations based on dendrochronology since 1786 for the Lenglongling Mountains at the northwestern fringe of the East Asian summer monsoon region
HOU Ying1,2*, NIU Zhenmin2, ZHENG Fang1, WANG Nai’ang2, WANG Jianyu1, LI Zhuolun2, CHEN Hongxiang1, ZHANG Xuemin2
1 College of Earth and Environmental Sciences, Ningxia University, Yinchuan 750021, China;
2 Center for Climate Change and Hydrologic Cycle in Arid Region, College of Earth and Environmental Science, Lanzhou University, Lanzhou 730000, China
Drought fluctuations based on dendrochronology since 1786 for the Lenglongling Mountains at the northwestern fringe of the East Asian summer monsoon region
HOU Ying1,2*, NIU Zhenmin2, ZHENG Fang1, WANG Nai’ang2, WANG Jianyu1, LI Zhuolun2, CHEN Hongxiang1, ZHANG Xuemin2
1 College of Earth and Environmental Sciences, Ningxia University, Yinchuan 750021, China;
2 Center for Climate Change and Hydrologic Cycle in Arid Region, College of Earth and Environmental Science, Lanzhou University, Lanzhou 730000, China
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摘要 The Lenglongling Mountains (LLM) located in northeastern part of the Tibet Plateau, belong to a marginal area of the East Asian summer monsoon (EASM) and are sensitive to monsoon dynamics. Two tree-ring width chronologies developed from six sites of Picea crassifolia in the LLM were employed to study the regional drought variability. Correlation and temporal correlation analyses showed that relationships between the two chronologies and self-calibrated Palmer Drought Severity Index (sc_PDSI) were significant and stable across time, demonstrating the strength of sc_PDSI in modeling drought conditions in this region. Based on the relationships, the mean sc_PDSI was reconstructed for the period from 1786 to 2013. Dry conditions prevailed during 1817–1819, 1829–1831, 1928–1931 and 1999–2001. Relatively wet periods were identified for 1792–1795 and 1954–1956. Spatial correlations with other fourteen precipitation/drought reconstructed series in previous studies revealed that in arid regions of Northwest China, long-term variability of moisture conditions was synchronous before the 1950s at a decadal scale (1791–1954). In northwestern margin of the EASM, most of all selected reconstructions had better consistency in low-frequency variation, especially during dry periods, indicating similar regional moisture variations and analogous modes of climate forcing on tree growth in the region.
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WANG Nai’ang
HOU Ying
NIU Zhenmin
ZHENG Fang
WANG Jianyu
LI Zhuolun
CHEN Hongxiang
ZHANG Xuemin
关键词:  amphibian and reptile  distribution pattern  higher level zoogeographic division  similarity analysis  boundary test  arid area  Central Asia    
Abstract: The Lenglongling Mountains (LLM) located in northeastern part of the Tibet Plateau, belong to a marginal area of the East Asian summer monsoon (EASM) and are sensitive to monsoon dynamics. Two tree-ring width chronologies developed from six sites of Picea crassifolia in the LLM were employed to study the regional drought variability. Correlation and temporal correlation analyses showed that relationships between the two chronologies and self-calibrated Palmer Drought Severity Index (sc_PDSI) were significant and stable across time, demonstrating the strength of sc_PDSI in modeling drought conditions in this region. Based on the relationships, the mean sc_PDSI was reconstructed for the period from 1786 to 2013. Dry conditions prevailed during 1817–1819, 1829–1831, 1928–1931 and 1999–2001. Relatively wet periods were identified for 1792–1795 and 1954–1956. Spatial correlations with other fourteen precipitation/drought reconstructed series in previous studies revealed that in arid regions of Northwest China, long-term variability of moisture conditions was synchronous before the 1950s at a decadal scale (1791–1954). In northwestern margin of the EASM, most of all selected reconstructions had better consistency in low-frequency variation, especially during dry periods, indicating similar regional moisture variations and analogous modes of climate forcing on tree growth in the region.
Key words:  amphibian and reptile    distribution pattern    higher level zoogeographic division    similarity analysis    boundary test    arid area    Central Asia
收稿日期:  2015-10-25      修回日期:  2016-02-25           出版日期:  2016-08-10      发布日期:  2016-03-03      期的出版日期:  2016-08-10
基金资助: 

The National Natural Science Foundation of China (51309134), the National Science Foundation for Fostering Talents in Basic Research of the National Natural Science Foundation of China (J1210065), the Research Starting Funds for Imported Talents, Ningxia University (BQD2012011) and the Natural Science Funds, Ningxia University (ZR1233).

通讯作者:  HOU Ying    E-mail:  holying@foxmail.com
引用本文:    
HOU Ying, NIU Zhenmin, ZHENG Fang, WANG Nai’ang, WANG Jianyu, LI Zhuolun, CHEN H. Drought fluctuations based on dendrochronology since 1786 for the Lenglongling Mountains at the northwestern fringe of the East Asian summer monsoon region[J]. 干旱区科学, 2016, 8(4): 492-505.
HOU Ying, NIU Zhenmin, ZHENG Fang, WANG Nai’ang, WANG Jianyu, LI Zhuolun, CHEN Hongxiang, ZHANG Xuemin. Drought fluctuations based on dendrochronology since 1786 for the Lenglongling Mountains at the northwestern fringe of the East Asian summer monsoon region. Journal of Arid Land, 2016, 8(4): 492-505.
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http://jal.xjegi.com/CN/10.1007/s40333-016-0009-8  或          http://jal.xjegi.com/CN/Y2016/V8/I4/492
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