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Statements

Subject Item
n2:RIV%2F67179843%3A_____%2F11%3A00374260%21RIV12-AV0-67179843
rdf:type
n10:Vysledek skos:Concept
dcterms:description
This paper deals with interaction between amount of water lost by tree transpiration and aboveground biomass increment in poplar based short rotation coppice in conditions of Czech-Moravian highlands. Stem sap-flow measured on 8 poplar trees by Granier heat dissipation method was put in relation with biomass increments measured both with automated dendrometers so with manual measurements with caliper gauge. Transpiration totals ranged between 28.3 – 175.6 liters per tree in executed period 3. 8. – 31. 8. 2011. Above-ground biomass increments in this period varied between 30.07 – 519.28 g per tree and mean value of water use efficiency of all monitored trees reached 2.76 g kg-1. Mean diurnal sap-flow total of all sampled trees was 3.25 liters. Results show that it is possible to establish relationship between transpiration totals and biomass increments (coefficient of determination R2 = 0.90) and also relationship between transpiration totals and stem diameter (R2 = 0.93). These results were further used for calculations of transpiration as scaling factors from tree level to whole stand level. Finally, the calculated transpiration of the whole stand was compared with actual evapotranspiration measured by Bowen ratio energy balance method and potential evapotranspiration calculated according Penman. This paper deals with interaction between amount of water lost by tree transpiration and aboveground biomass increment in poplar based short rotation coppice in conditions of Czech-Moravian highlands. Stem sap-flow measured on 8 poplar trees by Granier heat dissipation method was put in relation with biomass increments measured both with automated dendrometers so with manual measurements with caliper gauge. Transpiration totals ranged between 28.3 – 175.6 liters per tree in executed period 3. 8. – 31. 8. 2011. Above-ground biomass increments in this period varied between 30.07 – 519.28 g per tree and mean value of water use efficiency of all monitored trees reached 2.76 g kg-1. Mean diurnal sap-flow total of all sampled trees was 3.25 liters. Results show that it is possible to establish relationship between transpiration totals and biomass increments (coefficient of determination R2 = 0.90) and also relationship between transpiration totals and stem diameter (R2 = 0.93). These results were further used for calculations of transpiration as scaling factors from tree level to whole stand level. Finally, the calculated transpiration of the whole stand was compared with actual evapotranspiration measured by Bowen ratio energy balance method and potential evapotranspiration calculated according Penman.
dcterms:title
Sap-flow, biomass increment and water use efficiency of short rotation poplar coppice Sap-flow, biomass increment and water use efficiency of short rotation poplar coppice
skos:prefLabel
Sap-flow, biomass increment and water use efficiency of short rotation poplar coppice Sap-flow, biomass increment and water use efficiency of short rotation poplar coppice
skos:notation
RIV/67179843:_____/11:00374260!RIV12-AV0-67179843
n10:predkladatel
n18:ico%3A67179843
n3:aktivita
n16:P n16:Z
n3:aktivity
P(ED1.1.00/02.0073), Z(AV0Z60870520), Z(MSM6215648905)
n3:dodaniDat
n15:2012
n3:domaciTvurceVysledku
n11:4967682 n11:4394372 n11:8957924 n11:5539498
n3:druhVysledku
n13:D
n3:duvernostUdaju
n20:S
n3:entitaPredkladatele
n12:predkladatel
n3:idSjednocenehoVysledku
228142
n3:idVysledku
RIV/67179843:_____/11:00374260
n3:jazykVysledku
n4:eng
n3:klicovaSlova
sap-flow; short rotation coppice; water use efficiency
n3:klicoveSlovo
n8:sap-flow n8:water%20use%20efficiency n8:short%20rotation%20coppice
n3:kontrolniKodProRIV
[EA5CFA1628C7]
n3:mistoKonaniAkce
Bratislava
n3:mistoVydani
Bratislava
n3:nazevZdroje
19. Posterový deň s medzinárodnou účasťou %22Transport vody, chemikálií a energie v systéme pôda-rastlina-atmosféra
n3:obor
n7:DG
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
5
n3:projekt
n14:ED1.1.00%2F02.0073
n3:rokUplatneniVysledku
n15:2011
n3:tvurceVysledku
Fischer, Milan Trnka, Miroslav Kučera, J. Orság, Matěj Žalud, Zdeněk
n3:typAkce
n21:EUR
n3:zahajeniAkce
2011-11-10+01:00
n3:zamer
n6:AV0Z60870520 n6:MSM6215648905
s:numberOfPages
1
n19:hasPublisher
ÚH a GFÚ SAV
n17:isbn
978-80-89139-26-2