Tree-Ring Width Data of Tsuga longibracteata Reveal Growing Season Temperature Signals in the North-Central Pearl River Basin since 1824 AD

Concerning the ecological and economical importance of Pearl River basin, short-term climate changes have been widely studied by using instrumental records in but there is still a lack long-term climatic reconstructions that can be used to evaluate centennial scale anomalies. Here, we present 237-year tree-ring width chronology from Tsuga longibracteata north-central with reliable coverage 1824 2016. Based on significant relationship between tree growth mean temperature previous March October, reconstructed growing season (pMar-pOct) temperatures for past 193 years, an explained variance 43.3% during 1958–2016. The reconstruction reveals three major warm (1857–1890, 1964–1976, 1992–2016) cold (1824–1856, 1891–1963, 1977–1991) periods 1824–2016. Comparison other sensitive proxy nearby regions suggests our representative large-scale variations. Significant correlations sea surface (SSTs) western Pacific Ocean, northern Indian Atlantic Ocean suggest SST variability these domains may strongly influenced change basin.