Effect of diurnal solar radiation regime and tree density on sap flow of Norway spruce (Picea abies [L.] Karst.) in fragmented stand

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F25%3A00619030" target="_blank" >RIV/86652079:_____/25:00619030 - isvavai.cz</a>

Alternative codes found

RIV/60460709:41320/25:103239

Result on the web

<a href="https://reference-global.com/article/10.2478/forj-2024-0021" target="_blank" >https://reference-global.com/article/10.2478/forj-2024-0021</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2478/forj-2024-0021" target="_blank" >10.2478/forj-2024-0021</a>

Result language

angličtina

Original language name

Effect of diurnal solar radiation regime and tree density on sap flow of Norway spruce (Picea abies [L.] Karst.) in fragmented stand

Original language description

The continuous threat of ongoing climate change and related weather anomalies challenge forest ecosystems. Thephy-tosociological structure of forests plays a crucial role in determining their resilience to various abiotic and biotic stressors. Furthermore, stand density, which partly regulates the allocation of resources within individual trees, is a vital aspect of understanding forest functioning. This study was conducted in Norway spruce (Picea abies [L.] Karst.) forests in the Czech Republic, where we investigated the influence of tree density on sap flow rates within three pre-defined directions corresponding to sun position during the morning (5:00–11:10 hours, East), noon (11:10–15:10 hours, South), and evening (15:10–21:10 hours, West) intervals. Tree density was calculated within a 10 m radius buffer around each sap flow measured tree using high spatial resolution aerial imagery acquired by Unmanned Aerial Vehicle. Sap flow was measured at 10-minute intervals for 25 selected trees during the nine hottest summer days in 2019. Our data reveals an inverse correlation between sap flow and tree density, underscoring the substantial impact of neighboring tree density on transpiration. This relationship was most pronounced during midday, followed by the evening and morning hours, suggesting higher heat loads on the trees and forest grounds during the midday. Our findings emphasize the critical role of stand density in modulating forest functioning and underscore the importance of maintaining specific canopy densities as part of effective silvicultural practices in the face of ongoing climate change.n

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

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OECD FORD branch

10618 - Ecology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Central European Forestry Journal

ISSN

2454-034X

e-ISSN

2454-0358

Volume of the periodical

71

Issue of the periodical within the volume

2

Country of publishing house

SK - SLOVAKIA

Number of pages

14

Pages from-to

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UT code for WoS article

001497566000002

EID of the result in the Scopus database

2-s2.0-105009847699