The effect of heat waves, elevated [CO2] and low soil water availability on northern red oak (Quercus rubra L.) seedlings
Identifieur interne : 000019 ( PascalFrancis/Corpus ); précédent : 000018; suivant : 000020The effect of heat waves, elevated [CO2] and low soil water availability on northern red oak (Quercus rubra L.) seedlings
Auteurs : Ingvar Bauweraerts ; Timothy M. Wertin ; Maarten Ameye ; Mary Anne Mcguire ; Robert O. Teskey ; Kathy SteppeSource :
- Global change biology : (Print) [ 1354-1013 ] ; 2013.
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Abstract
The frequency and intensity of heat waves are predicted to increase. This study investigates whether heat waves would have the same impact as a constant increase in temperature with the same heat sum, and whether there would be any interactive effects of elevated [CO2] and soil moisture content. We grew Quercus rubra seedlings in treatment chambers maintained at either ambient or elevated [CO2] (380 or 700 μmol CO2 mol-1) with temperature treatments of ambient, ambient +3 °C, moderate heat wave (+6 °C every other week) or severe heat wave (+12 °C every fourth week) temperatures. Averaged over a 4-week period, and the entire growing season, the three elevated temperature treatments had the same average temperature and heat sum. Half the seedlings were watered to a soil water content near field capacity, half to about 50% of this value. Foliar gas exchange measurements were performed morning and afternoon (9:00 and 15:00 hours) before, during and after an applied heat wave in August 2010. Biomass accumulation was measured after five heat wave cycles. Under ambient [CO2] and well-watered conditions, biomass accumulation was highest in the +3 °C treatment, intermediate in the +6 °C heat wave and lowest in the +12 °C heat wave treatment. This response was mitigated by elevated [CO2]. Low soil moisture significantly decreased net photosynthesis (Anet) and biomass in all [CO2] and temperature treatments. The +12 °C heat wave reduced afternoon Anet by 23% in ambient [CO2]. Although this reduction was relatively greater under elevated [CO2], Anet values during this heat wave were still 34% higher than under ambient [CO2]. We concluded that heat waves affected biomass growth differently than the same amount of heat applied uniformly over the growing season, and that the plant response to heat waves also depends on [CO2] and soil moisture conditions.
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Format Inist (serveur)
| NO : | PASCAL 13-0089003 INIST |
|---|---|
| ET : | The effect of heat waves, elevated [CO2] and low soil water availability on northern red oak (Quercus rubra L.) seedlings |
| AU : | BAUWERAERTS (Ingvar); WERTIN (Timothy M.); AMEYE (Maarten); ANNE MCGUIRE (Mary); TESKEY (Robert O.); STEPPE (Kathy) |
| AF : | Laboratory of Plant Ecology, Department of Applied Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653/Ghent, 9000/Belgique (1 aut., 3 aut., 6 aut.); Daniel B. Warnell School of Forestry and Natural Resources, University of Georgia/Athens, Georgia 30602/Etats-Unis (2 aut., 4 aut., 5 aut.) |
| DT : | Publication en série; Niveau analytique |
| SO : | Global change biology : (Print); ISSN 1354-1013; Royaume-Uni; Da. 2013; Vol. 19; No. 2; Pp. 517-528; Bibl. 1 p.1/2 |
| LA : | Anglais |
| EA : | The frequency and intensity of heat waves are predicted to increase. This study investigates whether heat waves would have the same impact as a constant increase in temperature with the same heat sum, and whether there would be any interactive effects of elevated [CO2] and soil moisture content. We grew Quercus rubra seedlings in treatment chambers maintained at either ambient or elevated [CO2] (380 or 700 μmol CO2 mol-1) with temperature treatments of ambient, ambient +3 °C, moderate heat wave (+6 °C every other week) or severe heat wave (+12 °C every fourth week) temperatures. Averaged over a 4-week period, and the entire growing season, the three elevated temperature treatments had the same average temperature and heat sum. Half the seedlings were watered to a soil water content near field capacity, half to about 50% of this value. Foliar gas exchange measurements were performed morning and afternoon (9:00 and 15:00 hours) before, during and after an applied heat wave in August 2010. Biomass accumulation was measured after five heat wave cycles. Under ambient [CO2] and well-watered conditions, biomass accumulation was highest in the +3 °C treatment, intermediate in the +6 °C heat wave and lowest in the +12 °C heat wave treatment. This response was mitigated by elevated [CO2]. Low soil moisture significantly decreased net photosynthesis (Anet) and biomass in all [CO2] and temperature treatments. The +12 °C heat wave reduced afternoon Anet by 23% in ambient [CO2]. Although this reduction was relatively greater under elevated [CO2], Anet values during this heat wave were still 34% higher than under ambient [CO2]. We concluded that heat waves affected biomass growth differently than the same amount of heat applied uniformly over the growing season, and that the plant response to heat waves also depends on [CO2] and soil moisture conditions. |
| CC : | 002A14B01; 001E02D10 |
| FD : | Chaleur; Augmentation; Enrichissement milieu; Sol; Stade juvénile plante; Climat; Sécheresse; Changement global; Réchauffement; Changement climatique; Croissance; Inhibition; Photosynthèse; Dioxyde de carbone; Quercus rubra; Eau disponible |
| FG : | Climatologie dynamique; Facteur milieu; Fagaceae; Dicotyledones; Angiospermae; Spermatophyta |
| ED : | Heat; Increase; Medium enrichment; Soils; Plant juvenile growth stage; Climate; Drought; Global change; Warming; Climate change; Growth; Inhibition; Photosynthesis; Carbon dioxide; Quercus rubra; Water availability |
| EG : | Dynamical climatology; Environmental factor; Fagaceae; Dicotyledones; Angiospermae; Spermatophyta |
| SD : | Calor; Aumentación; Enriquecimiento medio; Suelo; Estado juvenil planta; Clima; Sequedad; Cambio global; Calefacción; Cambio climático; Crecimiento; Inhibición; Fotosíntesis; Carbono dióxido; Quercus rubra; Disponibilidad del agua |
| LO : | INIST-27882.354000508214960170 |
| ID : | 13-0089003 |
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Warnell School of Forestry and Natural Resources, University of Georgia</s1><s2>Athens, Georgia 30602</s2><s3>USA</s3><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Teskey, Robert O" sort="Teskey, Robert O" uniqKey="Teskey R" first="Robert O." last="Teskey">Robert O. Teskey</name><affiliation><inist:fA14 i1="02"><s1>Daniel B. Warnell School of Forestry and Natural Resources, University of Georgia</s1><s2>Athens, Georgia 30602</s2><s3>USA</s3><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Steppe, Kathy" sort="Steppe, Kathy" uniqKey="Steppe K" first="Kathy" last="Steppe">Kathy Steppe</name><affiliation><inist:fA14 i1="01"><s1>Laboratory of Plant Ecology, Department of Applied Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653</s1><s2>Ghent, 9000</s2><s3>BEL</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14></affiliation></author></analytic><series><title level="j" type="main">Global change biology : (Print)</title><title level="j" type="abbreviated">Glob. chang. biol. : (Print)</title><idno type="ISSN">1354-1013</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Global change biology : (Print)</title><title level="j" type="abbreviated">Glob. chang. biol. : (Print)</title><idno type="ISSN">1354-1013</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Carbon dioxide</term><term>Climate</term><term>Climate change</term><term>Drought</term><term>Global change</term><term>Growth</term><term>Heat</term><term>Increase</term><term>Inhibition</term><term>Medium enrichment</term><term>Photosynthesis</term><term>Plant juvenile growth stage</term><term>Quercus rubra</term><term>Soils</term><term>Warming</term><term>Water availability</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Chaleur</term><term>Augmentation</term><term>Enrichissement milieu</term><term>Sol</term><term>Stade juvénile plante</term><term>Climat</term><term>Sécheresse</term><term>Changement global</term><term>Réchauffement</term><term>Changement climatique</term><term>Croissance</term><term>Inhibition</term><term>Photosynthèse</term><term>Dioxyde de carbone</term><term>Quercus rubra</term><term>Eau disponible</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The frequency and intensity of heat waves are predicted to increase. This study investigates whether heat waves would have the same impact as a constant increase in temperature with the same heat sum, and whether there would be any interactive effects of elevated [CO<sub>2</sub>] and soil moisture content. We grew Quercus rubra seedlings in treatment chambers maintained at either ambient or elevated [CO<sub>2</sub>] (380 or 700 μmol CO<sub>2</sub> mol<sup>-1</sup>) with temperature treatments of ambient, ambient +3 °C, moderate heat wave (+6 °C every other week) or severe heat wave (+12 °C every fourth week) temperatures. Averaged over a 4-week period, and the entire growing season, the three elevated temperature treatments had the same average temperature and heat sum. Half the seedlings were watered to a soil water content near field capacity, half to about 50% of this value. Foliar gas exchange measurements were performed morning and afternoon (9:00 and 15:00 hours) before, during and after an applied heat wave in August 2010. Biomass accumulation was measured after five heat wave cycles. Under ambient [CO<sub>2</sub>] and well-watered conditions, biomass accumulation was highest in the +3 °C treatment, intermediate in the +6 °C heat wave and lowest in the +12 °C heat wave treatment. This response was mitigated by elevated [CO<sub>2</sub>]. Low soil moisture significantly decreased net photosynthesis (A<sub>net</sub>) and biomass in all [CO<sub>2</sub>] and temperature treatments. The +12 °C heat wave reduced afternoon A<sub>net</sub> by 23% in ambient [CO<sub>2</sub>]. Although this reduction was relatively greater under elevated [CO<sub>2</sub>], A<sub>net</sub> values during this heat wave were still 34% higher than under ambient [CO<sub>2</sub>]. We concluded that heat waves affected biomass growth differently than the same amount of heat applied uniformly over the growing season, and that the plant response to heat waves also depends on [CO<sub>2</sub>] and soil moisture conditions.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>1354-1013</s0></fA01><fA03 i2="1"><s0>Glob. chang. biol. : (Print)</s0></fA03><fA05><s2>19</s2></fA05><fA06><s2>2</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>The effect of heat waves, elevated [CO<sub>2</sub>] and low soil water availability on northern red oak (Quercus rubra L.) seedlings</s1></fA08><fA11 i1="01" i2="1"><s1>BAUWERAERTS (Ingvar)</s1></fA11><fA11 i1="02" i2="1"><s1>WERTIN (Timothy M.)</s1></fA11><fA11 i1="03" i2="1"><s1>AMEYE (Maarten)</s1></fA11><fA11 i1="04" i2="1"><s1>ANNE MCGUIRE (Mary)</s1></fA11><fA11 i1="05" i2="1"><s1>TESKEY (Robert O.)</s1></fA11><fA11 i1="06" i2="1"><s1>STEPPE (Kathy)</s1></fA11><fA14 i1="01"><s1>Laboratory of Plant Ecology, Department of Applied Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653</s1><s2>Ghent, 9000</s2><s3>BEL</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></fA14><fA14 i1="02"><s1>Daniel B. Warnell School of Forestry and Natural Resources, University of Georgia</s1><s2>Athens, Georgia 30602</s2><s3>USA</s3><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></fA14><fA20><s1>517-528</s1></fA20><fA21><s1>2013</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>27882</s2><s5>354000508214960170</s5></fA43><fA44><s0>0000</s0><s1>© 2013 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>1 p.1/2</s0></fA45><fA47 i1="01" i2="1"><s0>13-0089003</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Global change biology : (Print)</s0></fA64><fA66 i1="01"><s0>GBR</s0></fA66><fC01 i1="01" l="ENG"><s0>The frequency and intensity of heat waves are predicted to increase. This study investigates whether heat waves would have the same impact as a constant increase in temperature with the same heat sum, and whether there would be any interactive effects of elevated [CO<sub>2</sub>] and soil moisture content. We grew Quercus rubra seedlings in treatment chambers maintained at either ambient or elevated [CO<sub>2</sub>] (380 or 700 μmol CO<sub>2</sub> mol<sup>-1</sup>) with temperature treatments of ambient, ambient +3 °C, moderate heat wave (+6 °C every other week) or severe heat wave (+12 °C every fourth week) temperatures. Averaged over a 4-week period, and the entire growing season, the three elevated temperature treatments had the same average temperature and heat sum. Half the seedlings were watered to a soil water content near field capacity, half to about 50% of this value. Foliar gas exchange measurements were performed morning and afternoon (9:00 and 15:00 hours) before, during and after an applied heat wave in August 2010. Biomass accumulation was measured after five heat wave cycles. Under ambient [CO<sub>2</sub>] and well-watered conditions, biomass accumulation was highest in the +3 °C treatment, intermediate in the +6 °C heat wave and lowest in the +12 °C heat wave treatment. This response was mitigated by elevated [CO<sub>2</sub>]. Low soil moisture significantly decreased net photosynthesis (A<sub>net</sub>) and biomass in all [CO<sub>2</sub>] and temperature treatments. The +12 °C heat wave reduced afternoon A<sub>net</sub> by 23% in ambient [CO<sub>2</sub>]. Although this reduction was relatively greater under elevated [CO<sub>2</sub>], A<sub>net</sub> values during this heat wave were still 34% higher than under ambient [CO<sub>2</sub>]. We concluded that heat waves affected biomass growth differently than the same amount of heat applied uniformly over the growing season, and that the plant response to heat waves also depends on [CO<sub>2</sub>] and soil moisture conditions.</s0></fC01><fC02 i1="01" i2="X"><s0>002A14B01</s0></fC02><fC02 i1="02" i2="2"><s0>001E02D10</s0></fC02><fC03 i1="01" i2="X" l="FRE"><s0>Chaleur</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="ENG"><s0>Heat</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="SPA"><s0>Calor</s0><s5>01</s5></fC03><fC03 i1="02" i2="X" l="FRE"><s0>Augmentation</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="ENG"><s0>Increase</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="SPA"><s0>Aumentación</s0><s5>02</s5></fC03><fC03 i1="03" i2="X" l="FRE"><s0>Enrichissement milieu</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="ENG"><s0>Medium enrichment</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="SPA"><s0>Enriquecimiento medio</s0><s5>03</s5></fC03><fC03 i1="04" i2="X" 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l="SPA"><s0>Fotosíntesis</s0><s5>13</s5></fC03><fC03 i1="14" i2="X" l="FRE"><s0>Dioxyde de carbone</s0><s2>NK</s2><s2>FX</s2><s5>41</s5></fC03><fC03 i1="14" i2="X" l="ENG"><s0>Carbon dioxide</s0><s2>NK</s2><s2>FX</s2><s5>41</s5></fC03><fC03 i1="14" i2="X" l="SPA"><s0>Carbono dióxido</s0><s2>NK</s2><s2>FX</s2><s5>41</s5></fC03><fC03 i1="15" i2="X" l="FRE"><s0>Quercus rubra</s0><s2>NS</s2><s5>49</s5></fC03><fC03 i1="15" i2="X" l="ENG"><s0>Quercus rubra</s0><s2>NS</s2><s5>49</s5></fC03><fC03 i1="15" i2="X" l="SPA"><s0>Quercus rubra</s0><s2>NS</s2><s5>49</s5></fC03><fC03 i1="16" i2="X" l="FRE"><s0>Eau disponible</s0><s4>CD</s4><s5>96</s5></fC03><fC03 i1="16" i2="X" l="ENG"><s0>Water availability</s0><s4>CD</s4><s5>96</s5></fC03><fC03 i1="16" i2="X" l="SPA"><s0>Disponibilidad del agua</s0><s4>CD</s4><s5>96</s5></fC03><fC07 i1="01" i2="X" l="FRE"><s0>Climatologie dynamique</s0></fC07><fC07 i1="01" i2="X" l="ENG"><s0>Dynamical climatology</s0></fC07><fC07 i1="01" i2="X" l="SPA"><s0>Climatología dinámica</s0></fC07><fC07 i1="02" i2="X" l="FRE"><s0>Facteur milieu</s0><s5>17</s5></fC07><fC07 i1="02" i2="X" l="ENG"><s0>Environmental factor</s0><s5>17</s5></fC07><fC07 i1="02" i2="X" l="SPA"><s0>Factor medio</s0><s5>17</s5></fC07><fC07 i1="03" i2="X" l="FRE"><s0>Fagaceae</s0><s2>NS</s2></fC07><fC07 i1="03" i2="X" l="ENG"><s0>Fagaceae</s0><s2>NS</s2></fC07><fC07 i1="03" i2="X" l="SPA"><s0>Fagaceae</s0><s2>NS</s2></fC07><fC07 i1="04" i2="X" l="FRE"><s0>Dicotyledones</s0><s2>NS</s2></fC07><fC07 i1="04" i2="X" l="ENG"><s0>Dicotyledones</s0><s2>NS</s2></fC07><fC07 i1="04" i2="X" l="SPA"><s0>Dicotyledones</s0><s2>NS</s2></fC07><fC07 i1="05" i2="X" l="FRE"><s0>Angiospermae</s0><s2>NS</s2></fC07><fC07 i1="05" i2="X" l="ENG"><s0>Angiospermae</s0><s2>NS</s2></fC07><fC07 i1="05" i2="X" l="SPA"><s0>Angiospermae</s0><s2>NS</s2></fC07><fC07 i1="06" i2="X" l="FRE"><s0>Spermatophyta</s0><s2>NS</s2></fC07><fC07 i1="06" i2="X" l="ENG"><s0>Spermatophyta</s0><s2>NS</s2></fC07><fC07 i1="06" i2="X" l="SPA"><s0>Spermatophyta</s0><s2>NS</s2></fC07><fN21><s1>063</s1></fN21><fN44 i1="01"><s1>OTO</s1></fN44><fN82><s1>OTO</s1></fN82></pA></standard><server><NO>PASCAL 13-0089003 INIST</NO><ET>The effect of heat waves, elevated [CO<sub>2</sub>] and low soil water availability on northern red oak (Quercus rubra L.) seedlings</ET><AU>BAUWERAERTS (Ingvar); WERTIN (Timothy M.); AMEYE (Maarten); ANNE MCGUIRE (Mary); TESKEY (Robert O.); STEPPE (Kathy)</AU><AF>Laboratory of Plant Ecology, Department of Applied Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653/Ghent, 9000/Belgique (1 aut., 3 aut., 6 aut.); Daniel B. Warnell School of Forestry and Natural Resources, University of Georgia/Athens, Georgia 30602/Etats-Unis (2 aut., 4 aut., 5 aut.)</AF><DT>Publication en série; Niveau analytique</DT><SO>Global change biology : (Print); ISSN 1354-1013; Royaume-Uni; Da. 2013; Vol. 19; No. 2; Pp. 517-528; Bibl. 1 p.1/2</SO><LA>Anglais</LA><EA>The frequency and intensity of heat waves are predicted to increase. This study investigates whether heat waves would have the same impact as a constant increase in temperature with the same heat sum, and whether there would be any interactive effects of elevated [CO<sub>2</sub>] and soil moisture content. We grew Quercus rubra seedlings in treatment chambers maintained at either ambient or elevated [CO<sub>2</sub>] (380 or 700 μmol CO<sub>2</sub> mol<sup>-1</sup>) with temperature treatments of ambient, ambient +3 °C, moderate heat wave (+6 °C every other week) or severe heat wave (+12 °C every fourth week) temperatures. Averaged over a 4-week period, and the entire growing season, the three elevated temperature treatments had the same average temperature and heat sum. Half the seedlings were watered to a soil water content near field capacity, half to about 50% of this value. Foliar gas exchange measurements were performed morning and afternoon (9:00 and 15:00 hours) before, during and after an applied heat wave in August 2010. Biomass accumulation was measured after five heat wave cycles. Under ambient [CO<sub>2</sub>] and well-watered conditions, biomass accumulation was highest in the +3 °C treatment, intermediate in the +6 °C heat wave and lowest in the +12 °C heat wave treatment. This response was mitigated by elevated [CO<sub>2</sub>]. Low soil moisture significantly decreased net photosynthesis (A<sub>net</sub>) and biomass in all [CO<sub>2</sub>] and temperature treatments. The +12 °C heat wave reduced afternoon A<sub>net</sub> by 23% in ambient [CO<sub>2</sub>]. Although this reduction was relatively greater under elevated [CO<sub>2</sub>], A<sub>net</sub> values during this heat wave were still 34% higher than under ambient [CO<sub>2</sub>]. We concluded that heat waves affected biomass growth differently than the same amount of heat applied uniformly over the growing season, and that the plant response to heat waves also depends on [CO<sub>2</sub>] and soil moisture conditions.</EA><CC>002A14B01; 001E02D10</CC><FD>Chaleur; Augmentation; Enrichissement milieu; Sol; Stade juvénile plante; Climat; Sécheresse; Changement global; Réchauffement; Changement climatique; Croissance; Inhibition; Photosynthèse; Dioxyde de carbone; Quercus rubra; Eau disponible</FD><FG>Climatologie dynamique; Facteur milieu; Fagaceae; Dicotyledones; Angiospermae; Spermatophyta</FG><ED>Heat; Increase; Medium enrichment; Soils; Plant juvenile growth stage; Climate; Drought; Global change; Warming; Climate change; Growth; Inhibition; Photosynthesis; Carbon dioxide; Quercus rubra; Water availability</ED><EG>Dynamical climatology; Environmental factor; Fagaceae; Dicotyledones; Angiospermae; Spermatophyta</EG><SD>Calor; Aumentación; Enriquecimiento medio; Suelo; Estado juvenil planta; Clima; Sequedad; Cambio global; Calefacción; Cambio climático; Crecimiento; Inhibición; Fotosíntesis; Carbono dióxido; Quercus rubra; Disponibilidad del agua</SD><LO>INIST-27882.354000508214960170</LO><ID>13-0089003</ID></server></inist></record>Pour manipuler ce document sous Unix (Dilib)
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