About: Long-term Water Use Efficiency of Young Spruce Forest

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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) and dense (FD) from 1998 to 2003. WUE in this study was calculated as a ratio of total aboveground biomass increment (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 biomass was related to tree height increment and leaf biomass to the leaf area index. TBI was found significantly higher than TBII in FD. However, WUE was not significantly 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, WUE with use TBII (WUEII) 4.17 g/L and 4.14 g/L in FS and FD, respectively. WUE of FS and FS was similar due to the identical climate conditions, stand age and genetic origin of the trees. We can recommend TBI approach due to lower instrumentation demands and accurate results in the same time. 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) and dense (FD) from 1998 to 2003. WUE in this study was calculated as a ratio of total aboveground biomass increment (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 biomass was related to tree height increment and leaf biomass to the leaf area index. TBI was found significantly higher than TBII in FD. However, WUE was not significantly 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, WUE with use TBII (WUEII) 4.17 g/L and 4.14 g/L in FS and FD, respectively. WUE of FS and FS was similar due to the identical climate conditions, stand age and genetic origin of the trees. We can recommend TBI approach due to lower instrumentation demands and accurate results in the same time. (en)
Title	Long-term Water Use Efficiency of Young Spruce Forest Long-term Water Use Efficiency of Young Spruce Forest (en)
skos:prefLabel	Long-term Water Use Efficiency of Young Spruce Forest Long-term Water Use Efficiency of Young Spruce Forest (en)
skos:notation	RIV/67179843:_____/12:00382198!RIV13-AV0-67179843
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(ED1.1.00/02.0073), P(SP/2D1/70/08), P(SP/2D1/93/07), Z(AV0Z60870520)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Slípková, Romana Pokorný, Radek
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Centrum výzkumu globální změny AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	147452
http://linked.open...ai/riv/idVysledku	RIV/67179843:_____/12:00382198
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	transpiration; total aboveground biomass increment; growth dynamic (en)
http://linked.open.../riv/klicoveSlovo	transpiration growth dynamic total aboveground biomass increment
http://linked.open...odStatuVydavatele	BE - Belgické království
http://linked.open...ontrolniKodProRIV	[2946820C8C84]
http://linked.open...i/riv/nazevZdroje	Acta Horticulturae
http://linked.open...in/vavai/riv/obor	EH
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	CzechGlobe - Center for Global Climate Change Impacts Studies ForChange - forest ecosystems status and changes indication related to the global change based on anylysis ecophysiological processes and remote sensing Czech Terra - adaptation of lanscape carbon sinks in the context of global change
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	951
http://linked.open...iv/tvurceVysledku	Pokorný, Radek Slípková, Romana
http://linked.open...n/vavai/riv/zamer	Spatial and functional dynamics of biological, ecological and socio-economic systems interacting with global climatic change
issn	0567-7572
number of pages	8 (xsd:int)

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