Climate and wildfire effects on radial growth of Pinus sylvestris in the Khan Khentii Mountains, north-central Mongolia

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F20%3A43918184" target="_blank" >RIV/62156489:43410/20:43918184 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/86652079:_____/20:00532502

Výsledek na webu

<a href="https://doi.org/10.1016/j.jaridenv.2020.104223" target="_blank" >https://doi.org/10.1016/j.jaridenv.2020.104223</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jaridenv.2020.104223" target="_blank" >10.1016/j.jaridenv.2020.104223</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Climate and wildfire effects on radial growth of Pinus sylvestris in the Khan Khentii Mountains, north-central Mongolia

Popis výsledku v původním jazyce

The warming climate of recent decades has led to further aridity of the Mongolian landscape and has had major effects on forest growth and wildfire occurrence. Here, we investigated drought and wildfire effects on the growth of Pinus sylvestris along an ecologically diverse transect in semiarid north-central Mongolia using two separate subsets. Tree-ring width series of the first subset, represented by trees without fire scars, were clustered into three regional chronologies reflecting environmental differences of delineated geo-vegetation zones. Tree-ring growth reflected June drought signal at all three zones. The increasing radial growth trend was found in the dark taiga zone, likely supported by permafrost summer thawing, primarily caused by temperature increases. The second subset, represented by injured trees, showed that most wildfires occurred during the dormant season and in the forest-steppe zone; April-May drought conditions substantially contributed to triggering wildfires. Nevertheless, an increased frequency of wildfires in the study area was not observed, despite temperature increases since 1940. Our study highlights the significance of the effect of the ongoing temperature increase on north-central Mongolian pine forests, and, correspondingly, the need to conserve an endangered ecosystem of the dark taiga and to undertake afforestation activities in devastated pine forests.

Název v anglickém jazyce

Climate and wildfire effects on radial growth of Pinus sylvestris in the Khan Khentii Mountains, north-central Mongolia

Popis výsledku anglicky

The warming climate of recent decades has led to further aridity of the Mongolian landscape and has had major effects on forest growth and wildfire occurrence. Here, we investigated drought and wildfire effects on the growth of Pinus sylvestris along an ecologically diverse transect in semiarid north-central Mongolia using two separate subsets. Tree-ring width series of the first subset, represented by trees without fire scars, were clustered into three regional chronologies reflecting environmental differences of delineated geo-vegetation zones. Tree-ring growth reflected June drought signal at all three zones. The increasing radial growth trend was found in the dark taiga zone, likely supported by permafrost summer thawing, primarily caused by temperature increases. The second subset, represented by injured trees, showed that most wildfires occurred during the dormant season and in the forest-steppe zone; April-May drought conditions substantially contributed to triggering wildfires. Nevertheless, an increased frequency of wildfires in the study area was not observed, despite temperature increases since 1940. Our study highlights the significance of the effect of the ongoing temperature increase on north-central Mongolian pine forests, and, correspondingly, the need to conserve an endangered ecosystem of the dark taiga and to undertake afforestation activities in devastated pine forests.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40102 - Forestry

Projekt

<a href="/cs/project/EF16_019%2F0000797" target="_blank" >EF16_019/0000797: SustES - Adaptační strategie pro udržitelnost ekosystémových služeb a potravinové bezpečnosti v nepříznivých přírodních podmínkách</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

Journal of Arid Environments

ISSN

0140-1963

e-ISSN

—

Svazek periodika

182

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

104223

Kód UT WoS článku

000564509500004

EID výsledku v databázi Scopus

2-s2.0-85088799532