Circumferential and Longitudinal δ13C Variability in a Larix decidua Trunk from the Swiss Alps

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
  • Jan Esper
  • Dana FC Riechelmann
  • Steffen Holzkamper
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000513184500117&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.3390/f11010117
eISSN
1999-4907
Externe Identifier
  • Clarivate Analytics Document Solution ID: KL1IK
Ausgabe der Veröffentlichung
1
Zeitschrift
FORESTS
Schlüsselwörter
  • stable isotopes
  • sampling height
  • tree-rings
  • larch tree
  • dendrochronology
  • Simplon Valley
  • Switzerland
Artikelnummer
ARTN 117
Datum der Veröffentlichung
2020
Status
Published
Titel
Circumferential and Longitudinal δ<SUP>13</SUP>C Variability in a <i>Larix decidua</i> Trunk from the Swiss Alps
Sub types
  • Article
Ausgabe der Zeitschrift
11

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Abstract
<jats:p>Tree-ring stable isotopes are insightful proxies providing information on pre-instrumental climate fluctuations, yet the variability of these data within a tree trunk has not been fully explored. Here, we analyze longitudinal and circumferential changes in tree-ring δ13C values from 1991–2010, considering seven height levels from 1 to 13 m above ground and six sampling directions (radii) separated by 60° around the stem. The disk samples were taken from a 360-year old European larch (Larix decidua Mill.) that grew at 1675 m above sea level in the Simplon Valley, Switzerland. Results show that the circumferential δ13C variability, defined as the difference between the minimum and maximum isotope values within a single ring at a certain height, ranges from 0.5 to 2.8‰. These differences appear substantial as they match the range of year-to-year variations retained in long tree-ring δ13C time series used for climate reconstruction. The assessment of longitudinal variability demonstrated a systematic change of ~0.1‰ m−1 towards isotopically heavier (less negative) δ13C values with increasing tree height, likely reflecting a vertical gradient towards isotopically heavier needle tissue due to changing microclimatic conditions and CO2 stratification within the canopy. Calibration against regional climate data indicates no substantial signal changes in δ13C values within the trunk. We conclude that the longitudinal isotope gradient adds uncertainty to long δ13C chronologies derived from subfossil material of unknown (and changing) sampling heights. The large circumferential variability recorded in the sub-alpine larch suggests that more than two cores are needed to analyze absolute δ13C values representative for each tree.</jats:p>
Autoren
  • Jan Esper
  • Dana FC Riechelmann
  • Steffen Holzkämper
DOI
10.3390/f11010117
eISSN
1999-4907
Ausgabe der Veröffentlichung
1
Zeitschrift
Forests
Sprache
en
Online publication date
2020
Paginierung
117 - 117
Status
Published online
Herausgeber
MDPI AG
Herausgeber URL
http://dx.doi.org/10.3390/f11010117
Datum der Datenerfassung
2020
Titel
Circumferential and Longitudinal δ13C Variability in a Larix decidua Trunk from the Swiss Alps
Ausgabe der Zeitschrift
11

Datenquelle: Crossref

Author's licence
CC-BY
Autoren
  • Jan Esper
  • Dana Riechelmann
  • Steffen Holzkämper
Hosting institution
Universitätsbibliothek Mainz
Sammlungen
  • JGU-Publikationen
Resource version
Published version
URN
urn:nbn:de:hebis:77-publ-595534
DOI
10.3390/f11010117
Funding acknowledgements
  • DFG, Open Access-Publizieren Universität Mainz / Universitätsmedizin
File(s) embargoed
false
Open access
true
ISSN
1999-4907
Ausgabe der Veröffentlichung
1
Zeitschrift
Forests
Schlüsselwörter
  • 550 Geowissenschaften
  • 550 Earth sciences
Sprache
eng
Open access status
Open Access
Paginierung
Art. 117
Datum der Veröffentlichung
2020
Public URL
https://openscience.ub.uni-mainz.de/handle/20.500.12030/34
Herausgeber
MDPI
Herausgeber URL
http://dx.doi.org/10.3390/f11010117
Datum der Datenerfassung
2020
Datum, an dem der Datensatz öffentlich gemacht wurde
2020
Zugang
Public
Titel
Circumferential and longitudinal δ13C variability in a Larix decidua trunk from the Swiss Alps
Ausgabe der Zeitschrift
11

Files

59553.pdf

Datenquelle: OPENSCIENCE.UB

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