Drought fluctuations based on dendrochronology since 1786 for the Lenglongling Mountains at the northwestern fringe of the East Asian summer monsoon region

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

Climatic Response of Conifer Radial Growth in Forest-Steppes of South Siberia: Comparison of Three Approaches

“…These factors include temperature, precipitation, snow depth, drought indices, etc. (Pederson et al, 2001;Meko et al, 2013;Belmecheri et al, 2015;Hou et al, 2016). In addition, the response of tree growth to environmental conditions is more dependent on species-specific adaptation mechanisms when limitation is complex (Vaganov and Shashkin, 2000;Wilson and Elling, 2003;Friedrichs et al, 2009).…”

Estimation of consistent wet period characteristics for further improvement of water resources studies

“…; Gonzales & Valdes ; Woodhouse ; Hou et al . ). The second factor that contributed in reducing the magnitude of the single year wet event is due to the fact that tree growth during the wet year was not only controlled by high water quantities.…”

“…; Hou et al . ). In general, tree‐ring reconstructed hydrological records are useful to better manage water resources systems (Elshorbagy et al .…”

“…As predictor variables, long records of tree-ring indices were used in previous studies to augment short precipitation records (Touchan et al 1999;Yang et al 2014). The extended hydrological or meteorological records were used for several purposes like detecting past climate changes in a particular region (Gou et al 2007;Lara et al 2008;Davi et al 2009;Ge et al 2016), investigating the occurrence and severity of extreme drought events (Touchan et al 1999;Gonzales & Valdes 2003;Tarawneh & Hadadin 2009;Woodhouse et al 2009;Fang et al 2010;Yang et al 2014;Tei et al 2015), detecting the spatiotemporal drought variability and fluctuations (Fang et al 2013;Hou et al 2016). In general, tree-ring reconstructed hydrological records are useful to better manage water resources systems (Elshorbagy et al 2016).…”