Global importance of large-diameter trees

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897229" target="_blank" >RIV/60076658:12310/18:43897229 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60077344:_____/18:00493500 RIV/00027073:_____/18:N0000025

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/geb.12747" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1111/geb.12747</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/geb.12747" target="_blank" >10.1111/geb.12747</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Global importance of large-diameter trees

Popis výsledku v původním jazyce

Aim: To examine the contribution of large-diameter trees to biomass, stand structure, and species richness across forest biomes. Location: Global. Time period: Early 21st century. Major taxa studied: Woody plants. Methods: We examined the contribution of large trees to forest density, richness and biomass using a global network of 48 large (from 2 to 60 ha) forest plots representing 5,601,473 stems across 9,298 species and 210 plant families. This contribution was assessed using three metrics: the largest 1% of trees &gt;= 1 cm diameter at breast height (DBH), all trees &gt;= 60 cm DBH, and those rank-ordered largest trees that cumulatively comprise 50% of forest biomass. Results: Averaged across these 48 forest plots, the largest 1% of trees &gt;= 1 cm DBH comprised 50% of aboveground live biomass, with hectare-scale standard deviation of 26%. Trees &gt;= 60 cm DBH comprised 41% of aboveground live tree biomass. The size of the largest trees correlated with total forest biomass (r(2) 5.62, p &lt; .001). Large-diameter trees in high biomass forests represented far fewer species relative to overall forest richness (r(2) = 5.45, p &lt; .001). Forests with more diverse large-diameter tree communities were comprised of smaller trees (r(2) = 5.33, p &lt; .001). Lower large-diameter richness was associated with large-diameter trees being individuals of more common species (r(2) =5.17, p=5.002). The concentration of biomass in the largest 1% of trees declined with increasing absolute latitude (r(2) = 5.46, p &lt; .001), as did forest density (r(2) = 5.31, p &lt; .001). Forest structural complexity increased with increasing absolute latitude (r(2) = 5.26, p &lt; .001). Main conclusions: Because large-diameter trees constitute roughly half of the mature forest biomass worldwide, their dynamics and sensitivities to environmental change represent potentially large controls on global forest carbon cycling. We recommend managing forests for conservation of existing large-diameter trees or those that can soon reach large diameters as a simple way to conserve and potentially enhance ecosystem services.

Název v anglickém jazyce

Global importance of large-diameter trees

Popis výsledku anglicky

Aim: To examine the contribution of large-diameter trees to biomass, stand structure, and species richness across forest biomes. Location: Global. Time period: Early 21st century. Major taxa studied: Woody plants. Methods: We examined the contribution of large trees to forest density, richness and biomass using a global network of 48 large (from 2 to 60 ha) forest plots representing 5,601,473 stems across 9,298 species and 210 plant families. This contribution was assessed using three metrics: the largest 1% of trees &gt;= 1 cm diameter at breast height (DBH), all trees &gt;= 60 cm DBH, and those rank-ordered largest trees that cumulatively comprise 50% of forest biomass. Results: Averaged across these 48 forest plots, the largest 1% of trees &gt;= 1 cm DBH comprised 50% of aboveground live biomass, with hectare-scale standard deviation of 26%. Trees &gt;= 60 cm DBH comprised 41% of aboveground live tree biomass. The size of the largest trees correlated with total forest biomass (r(2) 5.62, p &lt; .001). Large-diameter trees in high biomass forests represented far fewer species relative to overall forest richness (r(2) = 5.45, p &lt; .001). Forests with more diverse large-diameter tree communities were comprised of smaller trees (r(2) = 5.33, p &lt; .001). Lower large-diameter richness was associated with large-diameter trees being individuals of more common species (r(2) =5.17, p=5.002). The concentration of biomass in the largest 1% of trees declined with increasing absolute latitude (r(2) = 5.46, p &lt; .001), as did forest density (r(2) = 5.31, p &lt; .001). Forest structural complexity increased with increasing absolute latitude (r(2) = 5.26, p &lt; .001). Main conclusions: Because large-diameter trees constitute roughly half of the mature forest biomass worldwide, their dynamics and sensitivities to environmental change represent potentially large controls on global forest carbon cycling. We recommend managing forests for conservation of existing large-diameter trees or those that can soon reach large diameters as a simple way to conserve and potentially enhance ecosystem services.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

<a href="/cs/project/GA15-23242S" target="_blank" >GA15-23242S: Fungují zákony metabolické teorie v evropských temperátních přirozených lesích? Testování v různém prostorovém měřítku.</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Global Ecology and Biogeography

ISSN

1466-822X

e-ISSN

—

Svazek periodika

27

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

849-864

Kód UT WoS článku

000439785700008

EID výsledku v databázi Scopus

2-s2.0-85046535962