A new version of this entry is available:
Loading...
Article
2020
Drought responses and their effects on radial stem growth of two co-occurring conifer species in the Mediterranean mountain range
Drought responses and their effects on radial stem growth of two co-occurring conifer species in the Mediterranean mountain range
Abstract (English)
Key message: Patterns of stem radial variations showed that Cedrus libani A. Rich. was less limited by summer drought than co-occurring Juniperus excelsa M. Bieb. Cedrus libani recovered faster from tree water deficit and showed significantly higher radial growth rates and annual stem increments than J. excelsa. However, the ability of J. excelsa to grow more hours per year may indicate a potential benefit in more extreme conditions.
Context: Knowledge about species-specific drought responses is needed to manage productive forests in drought prone areas. Under water shortage, trees commonly show stem shrinkage, which is assumed to inhibit growth.
Aims: We investigated whether the two co-existing conifers Juniperus excelsa M. Bieb. and Cedrus libani A. Rich. (growing at the Taurus Mountains, SW-Turkey) show differences in water relations and stem growth in order to evaluate their respective drought tolerance.
Methods: Stem radius changes were hourly monitored over 2 years using high-resolution point dendrometers. Radial stem growth, tree water deficit-induced stem shrinkage, and maximum daily shrinkage were extracted from stem radius change measurements, investigated for their patterns, and related to environmental conditions.
Results: Cedrus libani recovered from tree water deficit under higher temperature and vapor pressure deficit than J. excelsa. The number of hours during which stem growth occurred was higher for J. excelsa; however, growth rates and annual increments were significantly lower than in C. libani. Both species showed highest maximum daily shrinkage during the driest months indicating the ability to maintain gas exchange all year round.
Conclusion: Juniperus excelsa showed a more conservative growth strategy while C. libani was less limited by summer drought and showed more annual stem increment under the conditions investigated.
File is subject to an embargo until
This is a correction to:
A correction to this entry is available:
This is a new version of:
Other version
Notes
Publication license
Publication series
Published in
Annals of forest science, 77 (2020), 105.
https://doi.org/10.1007/s13595-020-01007-2.
ISSN: 1297-966X
Other version
Faculty
Institute
Examination date
Supervisor
Cite this publication
Güney, A., Zweifel, R., Türkan, S., Zimmermann, R., Wachendorf, M., & Güney, C. O. (2020). Drought responses and their effects on radial stem growth of two co-occurring conifer species in the Mediterranean mountain range. Annals of forest science, 77. https://doi.org/10.1007/s13595-020-01007-2
Edition / version
Citation
DOI
ISSN
ISBN
Language
English
Publisher
Publisher place
Classification (DDC)
630 Agriculture
Collections
Original object
University bibliography
Standardized keywords (GND)
Sustainable Development Goals
BibTeX
@article{Güney2020,
url = {https://hohpublica.uni-hohenheim.de/handle/123456789/16284},
doi = {10.1007/s13595-020-01007-2},
author = {Güney, Aylin and Zweifel, Roman and Türkan, Semra et al.},
title = {Drought responses and their effects on radial stem growth of two co-occurring conifer species in the Mediterranean mountain range},
journal = {Annals of forest science},
year = {2020},
volume = {77},
}