Fig. 7 | Scientific Reports

Fig. 7

From: Woody legacies of railroad ties from the Southern Atacama Desert used to strengthen Nothofagus obliqua tree-ring chronologies from Northern Patagonia

Fig. 7

Spatial correlation maps between the regional N. obliqua tree-ring width chronology composed by tree-ring series from living trees and railroad ties, and: (A) late spring - early summer (November–January) ERA5 precipitation during the 1950–2020 period, (B) mean late spring - early summer (November–January) ERA5 maximum temperature during the 1950–2020 period, and (C) Austral summer self-calibrated Palmer Drought Severity Index (scPDSI) field reconstruction indicated by the South American Drought Atlas (SADA) for the 1740–2020 period. The black dashed lines in panel C indicate the approximate N. obliqua forest distribution in Chile. Only significant correlation values (p < 0.05) are shown.

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