Location of the studied trees in Turkey (Image: GFZ)
Typical annual ring pattern of Juniperus excelsa, with widely varying and sometimes very narrow growth ring (Image: Dr. Ingo Heinrich, GFZ)
Tree drilling (Image: Dr. Ingo Heinrich, GFZ)
Thin section photograph through a pine tree (Image: GFZ)
Tree rings in tropical wood (Image: Dr. Ingo Heinrich, GFZ)

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