Long-term water use efficiency of young spruce forest

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Long-term water use efficiency of young spruce forest

Popis výsledku v původním jazyce

Long-term water use efficiency (WUE) describes water utilization by plants on different levels of biosphere organization. We have performed a WUE evaluation in two young spruce forests of different stand densities, sparse (FS) a dense (FD) from 1998 to 2003. WUE in this study was calculated as a ratio of total aboveground biomass(TB) and transpiration (T) on annual time scale. Two approaches were used for total biomass evaluation: i) TBi- from stem diameter at the breast height (DBH) increment dynamic and its allometry with TB, and ii) TBii- as a sum of leaf, branch and stem biomass. Growth dynamic of branch was related to tree height increment and leaf biomass to leaf area index. TBi was found significantly higher than TBii in FD. However, WUE was notsignificantly different among the stands and approaches. WUE with TBi (WUEi) used were 4.30 g/l and 4.68 g/l in FS and FD, WUEii with use TBii 4.17 g/l and 4.14 g/l in FS and FD, respectively. WUE of FS and FD was similar due to identica

Název v anglickém jazyce

Long-term water use efficiency of young spruce forest

Popis výsledku anglicky

Long-term water use efficiency (WUE) describes water utilization by plants on different levels of biosphere organization. We have performed a WUE evaluation in two young spruce forests of different stand densities, sparse (FS) a dense (FD) from 1998 to 2003. WUE in this study was calculated as a ratio of total aboveground biomass(TB) and transpiration (T) on annual time scale. Two approaches were used for total biomass evaluation: i) TBi- from stem diameter at the breast height (DBH) increment dynamic and its allometry with TB, and ii) TBii- as a sum of leaf, branch and stem biomass. Growth dynamic of branch was related to tree height increment and leaf biomass to leaf area index. TBi was found significantly higher than TBii in FD. However, WUE was notsignificantly different among the stands and approaches. WUE with TBi (WUEi) used were 4.30 g/l and 4.68 g/l in FS and FD, WUEii with use TBii 4.17 g/l and 4.14 g/l in FS and FD, respectively. WUE of FS and FD was similar due to identica

Druh

D - Stať ve sborníku

CEP obor

GK - Lesnictví

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

Acta Horticulturae 951

ISBN

978-90-6605-358-8

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

293-299

Název nakladatele

International Society for Horticultural Science

Místo vydání

Leuven

Místo konání akce

Volterra

Datum konání akce

8. 5. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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