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Statements

Subject Item
n2:RIV%2F67179843%3A_____%2F12%3A00383464%21RIV13-AV0-67179843
rdf:type
skos:Concept n18:Vysledek
dcterms:description
Potential influence of air elevated [CO2] on aboveground biomass was investigated on young (17-19 year old) Norway spruce (Picea abies [L.] Karst.) trees cultivated inside glass domes (GD) with ambient (A, 370 mmol (CO2) mol-1) and elevated (E, 700 mmol (CO2) mol-1) atmospheric CO2 concentrations ([CO2]) established in 1997. GDs were working as a semi-open system (Urban et al. 2001). The trees were growing in two different stand densities (S, 5,000 tree ha-1 and D, 10,000 tree ha-1) until 2002. Then the first analysis of harvested trees from schematic thinning was done. Two years later the second analysis was performed. Amount of branches with secondary shoots (SS), total amount of SS on branches were higher within the crowns of E- trees comparing to A- ones, particularly in S stand. After thinning, number of branches with SS and stem SS decreased and it was found to be even lower in ES than in AS. However, leaf (LB), branch (BB), stem (SB) and total aboveground (TBA) biomass of tree were found to be unaffected by elevated [CO2], stem dendrometric parameters and the aboveground tree organs’ biomass increments were stimulated by thinning, especially in S stand. Then the number and length of whorl branches increased on average by 13 % and 8 %, and by 3 % and 10 % (insignificantly) in E- sparse and dense sub-treatments, respectively. Tree height, stem thickness, number of whorl branches, length of whorl branches and angle of their inclination were found to be unaffected by elevated [CO2]. The percentage differences between treatments were within +/-10 % interval and they showed slightly higher stimulation of initial growth for trees in D- spacing. The thinning stimulated growth of the stems and branches of primary structure. Potential influence of air elevated [CO2] on aboveground biomass was investigated on young (17-19 year old) Norway spruce (Picea abies [L.] Karst.) trees cultivated inside glass domes (GD) with ambient (A, 370 mmol (CO2) mol-1) and elevated (E, 700 mmol (CO2) mol-1) atmospheric CO2 concentrations ([CO2]) established in 1997. GDs were working as a semi-open system (Urban et al. 2001). The trees were growing in two different stand densities (S, 5,000 tree ha-1 and D, 10,000 tree ha-1) until 2002. Then the first analysis of harvested trees from schematic thinning was done. Two years later the second analysis was performed. Amount of branches with secondary shoots (SS), total amount of SS on branches were higher within the crowns of E- trees comparing to A- ones, particularly in S stand. After thinning, number of branches with SS and stem SS decreased and it was found to be even lower in ES than in AS. However, leaf (LB), branch (BB), stem (SB) and total aboveground (TBA) biomass of tree were found to be unaffected by elevated [CO2], stem dendrometric parameters and the aboveground tree organs’ biomass increments were stimulated by thinning, especially in S stand. Then the number and length of whorl branches increased on average by 13 % and 8 %, and by 3 % and 10 % (insignificantly) in E- sparse and dense sub-treatments, respectively. Tree height, stem thickness, number of whorl branches, length of whorl branches and angle of their inclination were found to be unaffected by elevated [CO2]. The percentage differences between treatments were within +/-10 % interval and they showed slightly higher stimulation of initial growth for trees in D- spacing. The thinning stimulated growth of the stems and branches of primary structure.
dcterms:title
The effect of air elevated [CO2] on crown architecture and aboveground biomass in Norway spruce The effect of air elevated [CO2] on crown architecture and aboveground biomass in Norway spruce
skos:prefLabel
The effect of air elevated [CO2] on crown architecture and aboveground biomass in Norway spruce The effect of air elevated [CO2] on crown architecture and aboveground biomass in Norway spruce
skos:notation
RIV/67179843:_____/12:00383464!RIV13-AV0-67179843
n18:predkladatel
n19:ico%3A67179843
n4:aktivita
n13:Z n13:S n13:P
n4:aktivity
P(ED1.1.00/02.0073), P(EE2.4.31.0056), P(IAA600870701), P(SP/2D1/70/08), P(SP/2D1/93/07), S, Z(AV0Z60870520)
n4:cisloPeriodika
1
n4:dodaniDat
n7:2013
n4:domaciTvurceVysledku
n12:9285350 n12:8834822 n12:3273296
n4:druhVysledku
n16:J
n4:duvernostUdaju
n10:S
n4:entitaPredkladatele
n9:predkladatel
n4:idSjednocenehoVysledku
132918
n4:idVysledku
RIV/67179843:_____/12:00383464
n4:jazykVysledku
n15:eng
n4:klicovaSlova
thinning; secondary shoots; biomass allocation; long-term experiment; dendrometry
n4:klicoveSlovo
n11:secondary%20shoots n11:thinning n11:long-term%20experiment n11:biomass%20allocation n11:dendrometry
n4:kodStatuVydavatele
LT - Litevská republika
n4:kontrolniKodProRIV
[7783A5A9C313]
n4:nazevZdroje
Baltic Forestry
n4:obor
n6:EH
n4:pocetDomacichTvurcuVysledku
3
n4:pocetTvurcuVysledku
3
n4:projekt
n5:EE2.4.31.0056 n5:IAA600870701 n5:ED1.1.00%2F02.0073 n5:SP%2F2D1%2F70%2F08 n5:SP%2F2D1%2F93%2F07
n4:rokUplatneniVysledku
n7:2012
n4:svazekPeriodika
18
n4:tvurceVysledku
Pokorný, Radek Slípková, Romana Tomášková, Ivana
n4:wos
000309795700001
n4:zamer
n8:AV0Z60870520
s:issn
1392-1355
s:numberOfPages
10