The δ13C series of different components from Masson pine

<p>The idea of this study is to analyze the effects of climatic drivers on the radial growth (total ring width, earlywood width, and latewood width) and the <span>δ¹³C</span> series of different wood components (whole wood, α-cellulose, and holocelluose) from Masson pine in subtropical China. Pairwise correlation is significant between three ring width parameters. Earlywood and latewood width<span> did not reveal much stronger climatic sensitivity rather than total ring width</span>. This indicates that the use of intra-annual ring width maybe have little benefit in extracting more climate information. The mean δ¹³C series of the three components of the total ring had the strongest climatic response to the July–September relative humidity (r= -0.792 (whole wood, WW), -0.758 (holocellulose, HC) and -0.769 (α-cellulose, AC)). These results suggest that whole wood from Masson pine is sufficient to enhance the climate signal without cellulose isolation.</p> <p>Through both stationary temporal and spatial-statistical perspectives, the moisture drivers (summer/autumn) had a significant impact on three ring width parameters and three components of Masson pine. Overall, the tree ring width parameters and the <span>δ¹³C</span> series from the total ring showed a different response to the same climate drivers during the same period. The <span>δ¹³C</span> series may be a more representative climate proxy than tree-ring width parameters for the dendroclimatology in subtropical China.</p>