Dynamics and variability of microclimate in an unmanaged mountain forest after a bark beetle outbreak

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F24%3A00605703" target="_blank" >RIV/60077344:_____/24:00605703 - isvavai.cz</a>

Alternative codes found

RIV/60460709:41320/24:101462 RIV/60076658:12310/24:43908032

Result on the web

<a href="https://doi.org/10.1016/j.agrformet.2023.109824" target="_blank" >https://doi.org/10.1016/j.agrformet.2023.109824</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.agrformet.2023.109824" target="_blank" >10.1016/j.agrformet.2023.109824</a>

Result language

angličtina

Original language name

Dynamics and variability of microclimate in an unmanaged mountain forest after a bark beetle outbreak

Original language description

Forest disturbances alter hydrological, energy, and microclimatic characteristics and their extents vary with the landscape characteristics of the terrain. We evaluated changes in evapotranspiration and latent heat rate in an unmanaged, central European mountain forest (Norway spruce) after a bark beetle-induced mortality of >75 % trees, and the spatial variability in microclimate during its natural regeneration. We observed that (1) the annual mean incident solar radiation to the treeless plots was 8.2 MJ m(-2) day(-1) (95 W m(-2)), being reduced by similar to 45 % compared to its theoretical flux by high average cloudiness (70.6%) and short daily sunshine (4.3 hour day(-1)). The observed energy input to the forest floor beneath survived canopies (1.2 MJ m(-2) day(-1)) was an order of magnitude lower than solar radiation to the canopy surface. (2) The mean annual evapotranspiration and the average annual latent heat rate decreased by 155 mm yr(-1) and 385 MJ m(-2) yr(-1) (12 W m(-2)), respectively, after tree dieback. (3) The soil and air temperatures at individual plots correlated positively with the incident solar radiation and negatively with elevation. Mean soil and air temperatures exhibited similar lapse rates of 5.9-8.0 degrees C km(-1) during the growing season (May-October). The energy input (positive relationship) and elevation (negative relationship) explained 74-83 % of the between-plot variability in mean soil and air temperatures and 51-77 % of their daily amplitudes during the growing season. (4) On sunny days, the observed soil and air temperatures were significantly lower (by similar to 50 and 15 %, respectively) than ground surface temperature based on thermal satellite data (Landsat-8). The ground surface temperature explained 80-92 % of the observed variability in the soil and air temperatures. (5) The between-plot differences in daily soil and air temperatures and their amplitudes were from 24 to 70 % explained by solar radiation (positive correlation) and relative air humidity and wind speed (negative correlations).

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10617 - Marine biology, freshwater biology, limnology

Project

<a href="/en/project/GA22-05421S" target="_blank" >GA22-05421S: Effects of nitrogen availability and forest status on soil microbiome, nutrient cycling, and biological recovery of acidified waters in mountain ecosy</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Name of the periodical

Agricultural and Forest Meteorology

ISSN

0168-1923

e-ISSN

1873-2240

Volume of the periodical

344

Issue of the periodical within the volume

Jan

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

14

Pages from-to

109824

UT code for WoS article

001128079800001

EID of the result in the Scopus database

2-s2.0-85178330289