DOI: 10.1016/j.palaeo.2017.05.029
论文题名: Tree-ring indicators of rainfall and streamflow for the Ili-Balkhash Basin, Central Asia since CE 1560
作者: Chen F. ; Yuan Y. ; Yu S.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2017
卷: 482 起始页码: 48
结束页码: 56
语种: 英语
英文关键词: Ili-Balkhash Basin
; Precipitation reconstruction
; Streamflow change
; Tree rings
英文摘要: We reconstructed previous July–current April total precipitation in the upper Ili-Balkhash Basin of Central Asia, using a transfer equation based on the correlation between regional tree-ring width series and local precipitation data. Dry periods were identified from 1586–1612, 1637–1669, 1695–1721, 1759–1782, 1804–1864, 1907–1930 and 1974–1993, while wet periods occurred from 1560–1585, 1613–1636, 1670–1694, 1722–1758, 1783–1803, 1865–1906, 1931–1973 and 1994–2006. Spatial correlation analysis indicates that our precipitation reconstruction is broadly representative of precipitation in the entire Ili-Balkhash Basin. The precipitation timeseries is also strongly related to streamflow measurements, revealing that variations in precipitation in the upper Ili-Balkhash Basin have a dramatic influence on streamflow into Lake Balkhash. The precipitation reconstruction also compares well with various streamflow reconstructions from the Tien Shan, and exhibits an increasing streamflow trend in the 1980s through 2000s. Spectral analysis showed significant 60-, 33-, 11-, 2.8- and 2.1-year cycles over the past 447 years. Our 447-year precipitation reconstruction provides the basis for comparing past and present hydroclimate changes, which will be important for detection and attribution of hydroclimate variation in the Ili-Balkhash Basin. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67790
Appears in Collections: 过去全球变化的重建
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作者单位: Key Laboratory of Tree-ring Physical and Chemical Research of China Meteorological Administration, Xinjiang Laboratory of Tree-Ring Ecology, Institute of Desert Meteorology, China Meteorological Administration, Urumqi, China
Recommended Citation:
Chen F.,Yuan Y.,Yu S.. Tree-ring indicators of rainfall and streamflow for the Ili-Balkhash Basin, Central Asia since CE 1560[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2017-01-01,482