[Tree-ring reconstruction of March-August drought variability over the past 567 years in the Yajiang region of West Sichuan Plateau, China].

We constructed standard tree-ring-width chronology of var. for the Larima sampling site in the Ganzi Prefecture, Sichuan Province, by the single-free detren-ding method. The results showed that there was significant and positive correlation between the tree-ring chronology and March-August 1-month scale standardized precipitation and evapotranspiration index (SPEI1) of Yajiang region.

Tree-ring-based reconstruction of streamflow for the Zaqu River in the Lancang River source region, China, over the past 419 years.

Tree-ring width standard chronologies were created from juniperus przewalskii Kom data collected in the Lancang River Headwaters region. Statistical analysis results showed high correlation (r = 0.69) between the composite tree-ring chronology and instrumental streamflow records at the Xiangda Hydrological Station during the annual September-August interval.