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Biogeco Dataverse (INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement -
Version 1.0
File Citation
Bert, Didier; Hampe, Arndt, 2020, "TreeRingData.txt", Dendrochronology of 661 Quercus robur for SPONFOREST Project,, Portail Data INRAE, V1

This file is part of "Dendrochronology of 661 Quercus robur for SPONFOREST Project".

Dataset Citation
Bert, Didier; Hampe, Arndt, 2020, "Dendrochronology of 661 Quercus robur for SPONFOREST Project",, Portail Data INRAE, V1
File Metrics
File Metadata  
1.5 MB
14 variables in columns and 21 461 tree rings of Quercus robur 1. Patch : a letter is the name of each of the 15 forest stands 2. Tree : tree name. Example : K_001_A means K = stand, 001 = tree number in this stand, A = name of the cored stem when a tree was multi-stemmed 3. Year : tree-ring year 4. RW : ring width (mm) 5. DC : Distance between the pith and the first tree-ring on the core (mm); DC = 0 when the cored reached the pith 6. SupTR : Supplementary Tree Ring = number of missed tree-rings when the core did not reach the pith. SupTR = 0 when the core crossed the pith (bravo) 7. RingAge : tree-ring cambial age, i.e. tree-ring number from the pith, taking into annount SupTR. The series begins at 1 when the core reached the pith 8. CumRay : Cumulated radius of the tree from the pith to the current year (cm); it takes into account DC 9. BA : Basal Area (cm2) ; stem area under bark at the current year at the height of coring 10. BAI : Basal Area Increment (cm2) ; wood area of the tree-ring 11. Corrector = BATree/BaStem. This ratio allows to correct the growth for multi-stemmed trees. We cored only one stem per tree but the wood was produced in all the stems 12. BAc = BA * corrector (cm2) 13. BAIc = BAI * corrector (cm2). This the best estimator of the annual growth of the tree. 14. GI : Growth Index (%). This is the standardized BAIc taking into account the effect of cambial age (Regional Curve Standardization method)
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