Western-Carpathian mountain spruce woodlands at their southern margin: natural or anthropogenic origin?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F20%3A00533878" target="_blank" >RIV/67985939:_____/20:00533878 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/20:00114367

Výsledek na webu

<a href="http://hdl.handle.net/11104/0313716" target="_blank" >http://hdl.handle.net/11104/0313716</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.23855/preslia.2020.115" target="_blank" >10.23855/preslia.2020.115</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Western-Carpathian mountain spruce woodlands at their southern margin: natural or anthropogenic origin?

Popis výsledku v původním jazyce

Origin and dynamics of spruce woodlands in central Europe is an important topic due to the current disturbances triggered by bark beetle outbreaks and extreme climatic events. We focused on the Late Holocene development of spruce-dominated woodlands at their southern margin in the Western Carpathians. We analysed eight peat profiles along an altitudinal gradient of 730–1358m a.s.l. and evaluated the pollen spectra separately for the period before and after the start of intense medieval or post-medieval human intervention in the landscape. We focused on the relative proportions of spruce, beech, fir and noble hardwood trees. Spatial variation in the proportions of beech and spruce exceeded the temporal variation, contrary to fir that declined generally. Proportion of spruce significantly increased over time but the effect differed among sites. Proportion of beech was highest at 800–1000ma.s.l., while that of spruce increased linearly with annual precipitation rather than altitude and reached the highest values on windward slopes and in wet valleys. Different dominant trees at the two highest altitude sites indicate that altitudinal gradient was less important in the area studied. Although foresters consider spruce woodland on the highest summits as naturally monodominant, we found an apparent admixture of fir, together with a small admixture of beech, in the period before human intervention. We conclude that spruce is a major natural component of mountain woodlands even at its southern margin. Contrary to previous expectation, we demonstrate that the proportion of spruce was not associated with altitude but with mesoclimate and soil humidity. The natural spruce woodlands were mixed or existed as mosaics at all altitudes and the monodominant character of spruce woodlands in the area of summits is not natural.

Název v anglickém jazyce

Western-Carpathian mountain spruce woodlands at their southern margin: natural or anthropogenic origin?

Popis výsledku anglicky

Origin and dynamics of spruce woodlands in central Europe is an important topic due to the current disturbances triggered by bark beetle outbreaks and extreme climatic events. We focused on the Late Holocene development of spruce-dominated woodlands at their southern margin in the Western Carpathians. We analysed eight peat profiles along an altitudinal gradient of 730–1358m a.s.l. and evaluated the pollen spectra separately for the period before and after the start of intense medieval or post-medieval human intervention in the landscape. We focused on the relative proportions of spruce, beech, fir and noble hardwood trees. Spatial variation in the proportions of beech and spruce exceeded the temporal variation, contrary to fir that declined generally. Proportion of spruce significantly increased over time but the effect differed among sites. Proportion of beech was highest at 800–1000ma.s.l., while that of spruce increased linearly with annual precipitation rather than altitude and reached the highest values on windward slopes and in wet valleys. Different dominant trees at the two highest altitude sites indicate that altitudinal gradient was less important in the area studied. Although foresters consider spruce woodland on the highest summits as naturally monodominant, we found an apparent admixture of fir, together with a small admixture of beech, in the period before human intervention. We conclude that spruce is a major natural component of mountain woodlands even at its southern margin. Contrary to previous expectation, we demonstrate that the proportion of spruce was not associated with altitude but with mesoclimate and soil humidity. The natural spruce woodlands were mixed or existed as mosaics at all altitudes and the monodominant character of spruce woodlands in the area of summits is not natural.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

<a href="/cs/project/GA17-05696S" target="_blank" >GA17-05696S: Holocenní vývoj evropské bioty mírného pásu: vlivy klimatu, refugií a lokálních faktorů testované na komplexních datech nezávislých proxy</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Preslia

ISSN

0032-7786

e-ISSN

—

Svazek periodika

92

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

21

Strana od-do

115-135

Kód UT WoS článku

000573572400002

EID výsledku v databázi Scopus

2-s2.0-85093088583