Vertikální a horizontální redistribuce vody v korenech smrku ztepilého (Picea abies) na moravské vrchovině

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F06%3A00095325" target="_blank" >RIV/62156489:43410/06:00095325 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43410/06:00115411

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Vertical and horizontal water redistribution within Norway spruce (Picea abies) roots in the Moravian Upland

Popis výsledku v původním jazyce

Hydraulic redistribution (HR) within roots of large Norway spruce (Picea abies (L.) Karst.) trees was studied by the heat field deformation method for sap flow measurements. Localized irrigation (LI) was applied to steepen gradients of water potential inthe soil to enhance rates of HR. Root systems of seven sample trees were then exposed to 30 cm depth using a supersonic air-stream (air-spade). Vertical redistribution of water was observed within the conducting xylem of large coarse roots and some adjacent small lateral roots before LI was applied. Immediately after LI, horizontal redistribution through the pathway "wet roots-stem base-dry roots" was demonstrated for water within lateral roots from the same side of the trees. The amount of redistributed water within dry roots was dependent on the position of these roots relative to the watered roots and their watered root absorbing area. The redistribution of water by way of the "rehydrated roots - soil - dry roots of neighbouring tre

Název v anglickém jazyce

Vertical and horizontal water redistribution within Norway spruce (Picea abies) roots in the Moravian Upland

Popis výsledku anglicky

Hydraulic redistribution (HR) within roots of large Norway spruce (Picea abies (L.) Karst.) trees was studied by the heat field deformation method for sap flow measurements. Localized irrigation (LI) was applied to steepen gradients of water potential inthe soil to enhance rates of HR. Root systems of seven sample trees were then exposed to 30 cm depth using a supersonic air-stream (air-spade). Vertical redistribution of water was observed within the conducting xylem of large coarse roots and some adjacent small lateral roots before LI was applied. Immediately after LI, horizontal redistribution through the pathway "wet roots-stem base-dry roots" was demonstrated for water within lateral roots from the same side of the trees. The amount of redistributed water within dry roots was dependent on the position of these roots relative to the watered roots and their watered root absorbing area. The redistribution of water by way of the "rehydrated roots - soil - dry roots of neighbouring tre

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EF - Botanika

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název periodika

Tree Physiology

ISSN

0829-318X

e-ISSN

—

Svazek periodika

26

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

CA - Kanada

Počet stran výsledku

12

Strana od-do

1277-1288

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—