Precipitation Variations in the Eastern Part of the Hexi Corridor During AD 1765–2010 Reveal Changing Precipitation Signal in Gansu

We reconstructed August–May precipitation from AD 1765 to 2010 for the eastern part of the Hexi Corridor, northwest China, using tree rings of Picea crassifolia. The precipitation reconstruction explains 44.1% of the actual precipitation variance during the common period of 1951–2010. The precipitation reconstruction is representative of precipitation conditions over a large area of the Hexi Corridor. Multi-taper spectral analysis reveals the existence of significant variability with periods of 9.3, 6.7, 3.1, and 2.6 years. Comparison between the precipitation reconstruction of the eastern part of the Hexi Corridor and other nearby precipitation/drought reconstructions shows high coherency in the timing of dry/wet episodes on annual to decadal scale. The divergences existing between the reconstructions may reflect the influence of different geographic features in Gansu and differences in seasonality of the various precipitation/drought reconstructions.

Atmospheric sciences · Climatology · Geography · Meteorology · Period (music) · Physical geography · Precipitation · Seasonality · Ecology · Environmental Science · Geology · Geology and Paleoclimatology Research · Plant Water Relations and Carbon Dynamics · Tree-ring climate responses

• Tree-Ring Based Drought Reconstruction (A.D. 1855–2001) for the Qilian Mountains, Northwestern China

  Qinhua Tian, Xiaohua Gou et al.•Tree-Ring Research•2007

  Incluir item

• Annual Precipitation Variation Inferred from Tree Rings Since A.D. 1770 for the Western Qilian Mts., Northern Tibetan Plateau

  Eryuan Liang, Xuemei Shao et al.•Tree-Ring Research•2009

  Incluir item

• Quaternary International

  Open Access•Christian Hjort•Boreas•1990

  Incluir item

• Holocene moisture evolution in arid central Asia and its out-of-phase relationship with Asian monsoon history

  Open Access•Fahu Chen, Zicheng Yu et al.•Quaternary Science Reviews•2008

  Incluir item

• Aridity changes in the eastern Qilian Mountains since AD 1856 reconstructed from tree-rings

  Open Access•Yang Deng, Xiaohua Gou et al.•Quaternary International•2013

  Incluir item

• Reconstructed precipitation for the north-central China over the past 380 years and its linkages to East Asian summer monsoon variability

  Open Access•Feng Chen, Yu-jiang Yuan et al.•Quaternary International•2013

  Incluir item

• Tree ring-based annual streamflow reconstruction for the Heihe River in arid northwestern China from ad 575 and its implications for water resource management

  Open Access•Bao Yang, Chun Qin et al.•The Holocene•2011

  Incluir item