Dynamics and structure of mountain autochthonous spruce-beech forests: impact of hilltop phenomenon, air pollutants and climate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62690094%3A18470%2F17%3A50005688" target="_blank" >RIV/62690094:18470/17:50005688 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41320/17:75773

Výsledek na webu

<a href="http://www.idpan.poznan.pl/images/stories/dendrobiology/vol77/denbio.077.010.pdf" target="_blank" >http://www.idpan.poznan.pl/images/stories/dendrobiology/vol77/denbio.077.010.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.12657/denbio.077.010" target="_blank" >10.12657/denbio.077.010</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dynamics and structure of mountain autochthonous spruce-beech forests: impact of hilltop phenomenon, air pollutants and climate

Popis výsledku v původním jazyce

Mountain forests are strongly influenced by the extreme climate, short growing season and stress from environmental pollution and lower fertility of soils. The paper analyses the effect of the environment (climate and air pollutants) on the structure, production and dynamics of autochthonous spruce-beech forest stands in protected areas in the summit parts of the OrlickE hory Mts., Czech Republic. The spatial pattern of tree layer was random in lower parts below the summit and aggregated under the hilltop phenomenon on an extreme edaphic site, such as aggregated horizontal structure of natural regeneration. In most cases, the relationship between the spatial pattern of tree layer and natural regeneration was significantly negative (alpha = 0.05) at a smaller distance (from stem to 0.6-6.1 m) except stands under the strong hilltop phenomenon (positive effect to 2.1 m). The stand density ranged from 440 to 760 trees ha(-1) and the number of natural regeneration was 4 584-6 360 recruits ha(-1). Dominant height decreased with increasing influence of hilltop phenomenon (P &lt; 0.001). The volume of live trees was 239-536 m(3) ha(-1). The radial growth of dominant European beech (Fagus sylvatica L.) indicated a relatively balanced long-term trend of tree-ring width in 1900-2014, but diameter increment of admixed Norway spruce (Picea abies /L./Karst.) after 1978 significantly decreased (P &lt; 0.001) and since 1998 radial increment in spruce distinctly increased. Radial growth of spruce was significantly negatively correlated with mean SO2 and NOX concentrations, especially in April (P &lt; 0.001), but there was no effect on radial growth of beech. Air pollution had a significantly higher negative effect on radial growth of spruce on the hilltop compared to the lower part of the hill . The correlation between radial increment and temperature was stronger than in precipitation for both species in mountain areas compared to lowlands.

Název v anglickém jazyce

Dynamics and structure of mountain autochthonous spruce-beech forests: impact of hilltop phenomenon, air pollutants and climate

Popis výsledku anglicky

Mountain forests are strongly influenced by the extreme climate, short growing season and stress from environmental pollution and lower fertility of soils. The paper analyses the effect of the environment (climate and air pollutants) on the structure, production and dynamics of autochthonous spruce-beech forest stands in protected areas in the summit parts of the OrlickE hory Mts., Czech Republic. The spatial pattern of tree layer was random in lower parts below the summit and aggregated under the hilltop phenomenon on an extreme edaphic site, such as aggregated horizontal structure of natural regeneration. In most cases, the relationship between the spatial pattern of tree layer and natural regeneration was significantly negative (alpha = 0.05) at a smaller distance (from stem to 0.6-6.1 m) except stands under the strong hilltop phenomenon (positive effect to 2.1 m). The stand density ranged from 440 to 760 trees ha(-1) and the number of natural regeneration was 4 584-6 360 recruits ha(-1). Dominant height decreased with increasing influence of hilltop phenomenon (P &lt; 0.001). The volume of live trees was 239-536 m(3) ha(-1). The radial growth of dominant European beech (Fagus sylvatica L.) indicated a relatively balanced long-term trend of tree-ring width in 1900-2014, but diameter increment of admixed Norway spruce (Picea abies /L./Karst.) after 1978 significantly decreased (P &lt; 0.001) and since 1998 radial increment in spruce distinctly increased. Radial growth of spruce was significantly negatively correlated with mean SO2 and NOX concentrations, especially in April (P &lt; 0.001), but there was no effect on radial growth of beech. Air pollution had a significantly higher negative effect on radial growth of spruce on the hilltop compared to the lower part of the hill . The correlation between radial increment and temperature was stronger than in precipitation for both species in mountain areas compared to lowlands.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40102 - Forestry

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Dendrobiology

ISSN

1641-1307

e-ISSN

—

Svazek periodika

77

Číslo periodika v rámci svazku

únor

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

19

Strana od-do

119-137

Kód UT WoS článku

000399732900010

EID výsledku v databázi Scopus

2-s2.0-85017194501