Available Energy Partitioning During Drought at Two Norway Spruce Forests and a European Beech Forest in Central Europe

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F19%3A00505540" target="_blank" >RIV/86652079:_____/19:00505540 - isvavai.cz</a>

Výsledek na webu

<a href="https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2018JD029490" target="_blank" >https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2018JD029490</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1029/2018JD029490" target="_blank" >10.1029/2018JD029490</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Available Energy Partitioning During Drought at Two Norway Spruce Forests and a European Beech Forest in Central Europe

Popis výsledku v původním jazyce

Partitioning of the available energy at the Earth's surface into the latent heat (LE) and sensible heat (H) fluxes has important climatological, hydrological, and physiological implications. With the prediction of more frequent droughts in central Europe in the near future, there is a particular need to understand variability in available energy partitioning under drought stress conditions at forest ecosystems that are common in the region, such as Norway spruce and European beech. Using eddy covariance measurements from two Norway spruce sites with contrasting wet and dry climates and one European beech site in the Czech Republic, it was found that the proportion of energy partitioned into H was greater at the spruce sites than at the beech site in all conditions during the growing season. The difference between the mean midday (09:00-15:00) ss values for low stress conditions and drought stress conditions was much smaller at the European beech site (ss = 1.04 vs. 1.11) than at the wet (ss = 1.52 vs. 2.50) and dry Norway spruce (ss = 1.80 vs. 2.70) sites, indicating that ss was not as sensitive to drought stress at the European beech site as at the Norway spruce sites. The high ss values and enhancement of drought conditions through positive feedback processes at Norway spruce stands mean that the potential substitution of Norway spruce monocultures with mixed broadleaf-coniferous stands in central Europe will likely lessen the severity of droughts and heat waves in the region.

Název v anglickém jazyce

Available Energy Partitioning During Drought at Two Norway Spruce Forests and a European Beech Forest in Central Europe

Popis výsledku anglicky

Partitioning of the available energy at the Earth's surface into the latent heat (LE) and sensible heat (H) fluxes has important climatological, hydrological, and physiological implications. With the prediction of more frequent droughts in central Europe in the near future, there is a particular need to understand variability in available energy partitioning under drought stress conditions at forest ecosystems that are common in the region, such as Norway spruce and European beech. Using eddy covariance measurements from two Norway spruce sites with contrasting wet and dry climates and one European beech site in the Czech Republic, it was found that the proportion of energy partitioned into H was greater at the spruce sites than at the beech site in all conditions during the growing season. The difference between the mean midday (09:00-15:00) ss values for low stress conditions and drought stress conditions was much smaller at the European beech site (ss = 1.04 vs. 1.11) than at the wet (ss = 1.52 vs. 2.50) and dry Norway spruce (ss = 1.80 vs. 2.70) sites, indicating that ss was not as sensitive to drought stress at the European beech site as at the Norway spruce sites. The high ss values and enhancement of drought conditions through positive feedback processes at Norway spruce stands mean that the potential substitution of Norway spruce monocultures with mixed broadleaf-coniferous stands in central Europe will likely lessen the severity of droughts and heat waves in the region.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Geophysical Research: Atmospheres

ISSN

2169-897X

e-ISSN

—

Svazek periodika

124

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

17

Strana od-do

3726-3742

Kód UT WoS článku

000467147400006

EID výsledku v databázi Scopus

2-s2.0-85063787445