Dendrochronology of 661 Quercus robur for SPONFOREST Project

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Bert, Didier; Hampe, Arndt, 2020, "Dendrochronology of 661 Quercus robur for SPONFOREST Project", https://doi.org/10.15454/A2JJFG, Portail Data INRAE, V1

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Description	15 spontaneous stands of pedunculate oak were sampled in the Landes region close to Bordeaux. In each stand, all the oaks were cored with an increment borer. The 661 cores were measured to get series of annual growth. The ring-width data were cross dated and standardized with RCS method. The dataset is composed of two files: (1) description of 661 trees, (2) growth data of 21461 tree rings. (2020-06-19)
Subject	Forests and Forest Products
Keyword	dendrochronology, tree ring, growth
Related Publication	Lamonica D., Pagel J., Valdès-Correcher E., Bert D., Hampe A., Schurr F.M. Tree potential growth varies more than competition among spontaneously established forest stands of Pedunculate oak (Quercus robur). Ann For Sci.

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	TreeData.txt text/plain - 22.6 KB - Jun 19, 2020 - 9 Downloads MD5: 90db19fe4e1b3fc9cf53ee1851acdb0e 8 variables in columns and 661 lines for cored pedunculate oaks 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. TreeAge : tree age from seed; this age was inferred from dendrochronology information 4. FirstYear : year of the oldest tree-ring on the core (pith) 5. LastYear : year of the last tree-ring on the core (under bark) 6. DBHStem : diameter at breast height of the cored stem (cm) 7. DBHTree : diameter at breast height of the tree calculated from measurement of the circumference with a forest tape (in cm). DBHTree = DBHStem when the tree had only one stem, if not DBHTree > DBHStem 8. Corrector = BATree/BaStem. This ratio allows to correct the growth for multi-stemmed trees. We cored only stem per tree but the wood was produced in all the stems. Therefore, corrected BAI = BAI * corrector. Corrected BA and BAI are labelled BAc and BAIc in the file TreeRingData.txt. In the case of trees with only one stem, corrector = 1, then BA = BAc and BAI = BAIc	Read Text Download
	TreeRingData.txt text/plain - 1.5 MB - Jun 19, 2020 - 8 Downloads MD5: 2b5be08bb6bae15ef3bcd074152f23f9 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)	Read Text Download

Citation Metadata

Dataset Persistent ID	doi:10.15454/A2JJFG
Publication Date	2020-06-19
Title	Dendrochronology of 661 Quercus robur for SPONFOREST Project
Author	Bert, Didier (INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement) Hampe, Arndt (INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement)
Contact	Use email button above to contact. Bert, Didier (INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement)
Description	15 spontaneous stands of pedunculate oak were sampled in the Landes region close to Bordeaux. In each stand, all the oaks were cored with an increment borer. The 661 cores were measured to get series of annual growth. The ring-width data were cross dated and standardized with RCS method. The dataset is composed of two files: (1) description of 661 trees, (2) growth data of 21461 tree rings. (2020-06-19)
Kind of Data	Dataset
Other Kind of Data	trees and tree-rings data
Data Origin	observational data
Subject	Forests and Forest Products
Life cycle step	Deposit
Keyword	dendrochronology, tree ring, growth
Related Publication	Lamonica D., Pagel J., Valdès-Correcher E., Bert D., Hampe A., Schurr F.M. Tree potential growth varies more than competition among spontaneously established forest stands of Pedunculate oak (Quercus robur). Ann For Sci. Alfaro-Sanchez R., Valdes-Correcher E., Espelta J.M., Hampe A., Bert D., 2020. How do social status and tree architecture influence radial growth, wood density and drought response in spontaneously established oak forests? Ann For Sci 2020 (in press)
Language	English
Producer	Bert, Didier (INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement)
Production Date	2018-06-18
Production Place	Pierroton, Cestas, France
Grant Information	BiodivERsA project SPONFOREST: BiodivERsAA3-2015-58
Project Information	SPONFOREST (Unraveling the potential of SPONtaneous FORest ESTablishment for improving ecosystem functions and services in dynamic landscapes) . ID BiodivERsA3-2015-58
Depositor	Bert, Didier
Deposit Date	2020-06-19
Date of Collection	Start: 2018-06-05 ; End: 2018-10-01

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