Tree-ring δ18O inferred spring drought variability over the past 200 years in the Hengduan Mountains, Southwest China
Abstract In this study, we developed a tree-ring δ18O chronology of Abies delavayi from Diancangshan (25°41′N, 100°06′E), in the Hengduan Mountains of Southwest China, spanning 205 years (1810–2014 CE). Tree-ring δ18O from Abies delavayi showed the highest negative correlation with relative humidity in the spring (r = −0.59, P