Drought intensity and duration interact to magnify losses in primary productivity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F25%3A00644598" target="_blank" >RIV/67985939:_____/25:00644598 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1126/science.ads8144" target="_blank" >https://doi.org/10.1126/science.ads8144</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1126/science.ads8144" target="_blank" >10.1126/science.ads8144</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Drought intensity and duration interact to magnify losses in primary productivity

Popis výsledku v původním jazyce

As droughts become longer and more intense, impacts on terrestrial primary productivity are expected to increase progressively. Yet, some ecosystems appear to acclimate to multiyear drought, with constant or diminishing reductions in productivity as drought duration increases. We quantified the combined effects of drought duration and intensity on aboveground productivity in 74 grasslands and shrublands distributed globally. Ecosystem acclimation with multiyear drought was observed overall, except when droughts were extreme (i.e., <= 1-in-100-year likelihood of occurrence). Productivity losses after four consecutive years of extreme drought increased by similar to 2.5-fold compared with those of the first year. These results portend a foundational shift in ecosystem behavior if drought duration and intensity increase, from maintenance of reduced functioning over time to progressive and profound losses of productivity when droughts are extreme.

Název v anglickém jazyce

Drought intensity and duration interact to magnify losses in primary productivity

Popis výsledku anglicky

As droughts become longer and more intense, impacts on terrestrial primary productivity are expected to increase progressively. Yet, some ecosystems appear to acclimate to multiyear drought, with constant or diminishing reductions in productivity as drought duration increases. We quantified the combined effects of drought duration and intensity on aboveground productivity in 74 grasslands and shrublands distributed globally. Ecosystem acclimation with multiyear drought was observed overall, except when droughts were extreme (i.e., <= 1-in-100-year likelihood of occurrence). Productivity losses after four consecutive years of extreme drought increased by similar to 2.5-fold compared with those of the first year. These results portend a foundational shift in ecosystem behavior if drought duration and intensity increase, from maintenance of reduced functioning over time to progressive and profound losses of productivity when droughts are extreme.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Science

ISSN

0036-8075

e-ISSN

1095-9203

Svazek periodika

390

Číslo periodika v rámci svazku

6770

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

284-289

Kód UT WoS článku

001639434200001

EID výsledku v databázi Scopus

2-s2.0-105019033718