Turkey oak (Quercus cerris L.) is more drought tolerant and better reflects climate variations compared to pedunculate oak (Quercus robur L.) in lowland mixed forests in northwestern Serbia : ǂa ǂstable carbon isotope ratio (δ13C) and radial growth approach
| Autor: | Saša Kostić, Tom Levanič, Saša Orlović, Bratislav Matović, Dejan B. Stojanović |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
udc:630*1:630*5
podnebne spremembe cer Ecology suša dendrochronology General Decision Sciences drought tree ring dob dendrokronologija stabilni ogljikov izotop branike Quercus cerris cer Quercus robur dob suša podnebne spremembe stable carbon isotope dendrokronologija stabilni ogljikov izotop climate change dendrochronology stable carbon isotope tree ring Quercus robur Quercus cerris drought climate change Quercus cerris branike udc:630*1 Quercus robur Ecology Evolution Behavior and Systematics |
| Zdroj: | Ecological indicators. integrating monitoring, assessment and management, vol. 142, no. 109242, pp. 1-11, 2022. Ecological indicators, str. 1-11, Vol. 142, art.109242 : Ilustr., 2022 COBISS-ID: 912981 |
| ISSN: | 1470-160X |
| Popis: | Tree-ring width (TRW), stable carbon isotope ratio (δ13C) and intrinsic water use efficiency (iWUE) data set chronologies were built for the period 1961–2000 for two oak species (pedunculate oak – Quercus robur L. and Turkey oak – Quercus cerris L.) in northwestern Serbia (Vojvodina province). We focused on the response of the two oak species to measured meteorological data (temperature, precipitation and cloud cover), drought events expressed by six meteorological drought indices, and river water level to better understand their drought tolerance and stress and to assess the reliability of the species response to climate and drought indices when using TRW or δ13C. Turkey oak exhibited better drought tolerance (and less drought stress) compared to pedunculate oak, as manifested, respectively, by less negative δ13C and lower iWUE values. Based on a generalised additive mixed model (GAMM) among the six drought indices studied, the standardised precipitation evapotranspiration index and the standardised precipitation index showed the best fit with both TRW and δ13C, while the Palmer drought severity index exerted a strong influence only on TRW. It was thus concluded that δ13C responds more strongly and rapidly to climate variations than TRW. Bibliografija: str. 10-11. |
| Databáze: | OpenAIRE |
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