Comparison of drought signals in tree-ring width records of juniper trees from Central and West Asia during the last four centuries

Chen, Feng; Yu, Shulong; He, Qing; Zhang, Ruibo; Kobuliev, Zainalobudin; Mamadjonov, Yunus

doi:10.1007/s12517-015-2253-1

Cited by 10 publications

(20 citation statements)

References 51 publications

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“…1774-1775, 1885-1886, 1917-1919, 1974-1976) also found in the western Tien Shan. Further west, the study showed that tree-ring widths of juniper trees of northern Tajikistan were also sensitive to P August -C July drought variations (Chen et al 2016). The period 1850 to 2005 appears to coincide with similar dry/wet periods in Tien Shan.…”

Section: Comparisons With Other Drought Reconstructionsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

“…During the last three years, the situation have been changed greatly, and many new moisture-sensitive tree-ring chronologies have been constructed (Chen et al , 2016Zhang et al 2015;Seim et al 2016a, b;Opała et al 2017). Among these studies, spruce trees have provided the primary information source about past drought/precipitation variations of Central Asia (Chen et al , 2015aZhang et al 2013Zhang et al , 2015Zhang et al , 2016. Although previous dendroclimatic studies revealed that the tree-ring width variations of juniper trees in Central Asia can record drought events, only a few studies carried out to develop precipitation/drought reconstructions from juniper tree-ring records (Esper et al 2001;Chen et al 2016;Seim et al 2016a).…”

Section: Introductionmentioning

confidence: 99%

“…Comparison between the reconstructed SPEI and the tree-ring records from vicinity. a Authors' reconstructed SPEI (previous July to current May) in this text; b January-May PDSI reconstruction for the spruce-dominated area of eastern Tien Shan byChen et al (2013); c A moisture-sensitive tree-ring width series of juniper trees from northern Tajikistan(Chen et al 2016); Dry (wet) periods are emphasized in red (blue), respectively. To emphasize low-frequency variations, all series were smoothed with a 20-year low-pass filterFig.…”

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confidence: 99%

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A Drought Reconstruction from the Low-Elevation Juniper Forest of Northwestern Kyrgyzstan since CE 1565

Chen

et al. 2019

Socio-Environmental Dynamics Along the Historical Silk Road

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Naryn River provides large amounts of water resource for Central Asian countries. Thus, the severity and frequency of drought variation relate to runoff has important influences on social and economic development of this region. In this study, the new tree-ring width chronologies of juniper trees from the low-elevation site of the western Tien Shan are used to reconstruct drought variation for northwestern Kyrgyzstan and place the short instrumental period of Standardised Precipitation-Evapotranspiration Index (SPEI) in a long-term context. The SPEI reconstruction successfully reflects the dry and wet periods over the past 451 years, and captures a recent wetting trend that generally agrees with the drought reconstructions for the spruce-dominated area. However, some differences between the tree-ring records from spruce-dominated and juniper-dominated areas reflect regional climate differences. The comparison between drought events in the SPEI reconstruction and historical event of Central Asia reveals drought variations have had profound influences on some historical archives over the past several centuries. This study provides the first long-term SPEI reconstruction and drought evaluation from the low-altitude area of Central Asia, contributing to climate change issues in Central Asia.

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Section: Comparisons With Other Drought Reconstructionsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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A Drought Reconstruction from the Low-Elevation Juniper Forest of Northwestern Kyrgyzstan since CE 1565

Chen

et al. 2019

Socio-Environmental Dynamics Along the Historical Silk Road

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“…Species of this plant family such as Juniperus sibirica, J. turkestanica, J. seravschanica, J. semiglobosa, and J. schugnanica are endemic to Tajikistan [15]. There are numerous studies on reconstructions temperature, precipitation, drought related by Juniper tree-ring width [16][17][18][19][20][21][22][23][24][25][26][27], but in Tajikistan, a few studies are conducted [28][29][30][31] and the areas in the Qurama range of northern Tajik Tian Shan mountains are extensively missing.…”

Section: Introductionmentioning

confidence: 99%

Tree-Ring-Based Summer Temperature Minimum Reconstruction for Taboshar, Sogd Province, Tajikistan, Since AD 1840: Linkages to the Oceans

Zulfiyor¹,

Yu²,

Akylai³

et al. 2018

Preprint

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Despite the ecological importance of forest tree species, our study was motivated by scarce data on dendrochronology studies limited to the northwestern part of Tajikistan due to lack of access to such a part of the country which is difficult to access. Current studies on Junipers in the northwestern part of Tajikistan identified that tree ring-based climate reconstruction is possible.Cores of Juniperus Turkestanica from Taboshar area, Sogd province were developed into 176-year tree-ring width chronology. In the current study a summer (June-September) minimum temperature reconstruction spanning AD 1840-2016 was developed, which can explain 30.0% of the instrumental variableness for the period of 1940 . Five warmest (1856 -1866 , 1869 -1871 , 1907 -1916 , 1923 -1935 , 1988 and four coldest time periods (1840-1855, 1872-1906, 1917-1922, 1940-1984) were identified. The developed reconstruction coincides with cold and warm periods with prior investigations from tree-rings in China, Mongolia, Kyrgyzstan, Kazakhstan and Tajikistan. Spatial correlation analysis with the gridded minimum temperature data shows that the temperature reconstruction covers geographical representation over High Asia. Significant correlation was found between temperature reconstruction with summer SST, which suggests strong linkages of regional temperature variability with IndianOcean climate system. The obtained spectral peaks from the spectral analysis of the summer temperature reconstruction were significantly at 84.7-year (90%), 2.9-year (99%), 2.6-year (99%), 2.5-year (99%), 2.4-year (99%) and 2.2-year (99%).

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Streamflow reconstruction in the Kafirnigan River, Tajikistan since 1568 CE reveals a linkage between southern Central Asian hydrological variation and ENSO

Zulfiyor

Opała‐Owczarek

Chen

et al. 2023

Intl Journal of Climatology

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Long‐term hydroclimate change can provide reliable reference for water resources management in Central Asia. However, only a few palaeohydrological records exist in Tajikistan. To obtain a long‐term perspective on hydrological changes in Tajikistan, we developed, for the first time, a streamflow reconstruction from September of the previous year to June of the current one in the Kafirnigan River basin, based on Juniperus semiglobosa tree‐ring width indices from the Iskanderkul area in northern Tajikistan. The streamflow reconstruction explains 40% of the actual streamflow variance during the period 1939–1993. Spatial correlation analyses with gridded precipitation data indicate that our streamflow reconstruction contains a strong regional hydroclimatic signal for southern Central Asia. The high and low intervals of our streamflow reconstruction are closely related to the interdecadal variations of El Niño‐Southern Oscillation (ENSO). Our reconstructed streamflow is significantly correlated with sea surface temperatures in the eastern equatorial Pacific Ocean and northern Indian Ocean, indicate the existence of remarkable 11‐, 5.6–5.7‐, 4.3‐, 2.6‐, 2.3‐ and 2.0‐year cycles, and suggest a relationship between southern Central Asian streamflow variations and ENSO activity.

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Comparison of drought signals in tree-ring width records of juniper trees from Central and West Asia during the last four centuries

Cited by 10 publications

References 51 publications

A Drought Reconstruction from the Low-Elevation Juniper Forest of Northwestern Kyrgyzstan since CE 1565

A Drought Reconstruction from the Low-Elevation Juniper Forest of Northwestern Kyrgyzstan since CE 1565

Tree-Ring-Based Summer Temperature Minimum Reconstruction for Taboshar, Sogd Province, Tajikistan, Since AD 1840: Linkages to the Oceans

Streamflow reconstruction in the Kafirnigan River, Tajikistan since 1568 CE reveals a linkage between southern Central Asian hydrological variation and ENSO

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