Precipitation mediates sap flux sensitivity to evaporative demand in the neotropics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F19%3A80440" target="_blank" >RIV/60460709:41320/19:80440 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007%2Fs00442-019-04513-x" target="_blank" >https://link.springer.com/article/10.1007%2Fs00442-019-04513-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00442-019-04513-x" target="_blank" >10.1007/s00442-019-04513-x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Precipitation mediates sap flux sensitivity to evaporative demand in the neotropics

Popis výsledku v původním jazyce

Transpiration in humid tropical forests modulates the global water cycle and is a key driver of climate regulation. Yet, our understanding of how tropical trees regulate sap flux in response to climate variability remains elusive. With a progressively warming climate, atmospheric evaporative demand i.e., vapor pressure deficit (VPD) will be increasingly important for plant functioning, becoming the major control of plant water use in the twenty-first century. Using measurements in 34 tree species at seven sites across a precipitation gradient in the neotropics, we determined how the maximum sap flux velocity (v(max)) and the VPD threshold at which v(max) is reached (VPDmax) vary with precipitation regime mean annual precipitation (MAP), seasonal drought intensity (P-DRY) and two functional traits related to foliar and wood economics spectra leaf mass per area (LMA), wood specific gravity (WSG). We show that, even though v(max) is highly variable within sites, it follows a negative trend in response t

Název v anglickém jazyce

Precipitation mediates sap flux sensitivity to evaporative demand in the neotropics

Popis výsledku anglicky

Transpiration in humid tropical forests modulates the global water cycle and is a key driver of climate regulation. Yet, our understanding of how tropical trees regulate sap flux in response to climate variability remains elusive. With a progressively warming climate, atmospheric evaporative demand i.e., vapor pressure deficit (VPD) will be increasingly important for plant functioning, becoming the major control of plant water use in the twenty-first century. Using measurements in 34 tree species at seven sites across a precipitation gradient in the neotropics, we determined how the maximum sap flux velocity (v(max)) and the VPD threshold at which v(max) is reached (VPDmax) vary with precipitation regime mean annual precipitation (MAP), seasonal drought intensity (P-DRY) and two functional traits related to foliar and wood economics spectra leaf mass per area (LMA), wood specific gravity (WSG). We show that, even though v(max) is highly variable within sites, it follows a negative trend in response t

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Oecologia

ISSN

0029-8549

e-ISSN

1432-1939

Svazek periodika

191

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

519-530

Kód UT WoS článku

000493775700004

EID výsledku v databázi Scopus

2-s2.0-85074005732