Influence of Seasonal Variations in Soil Water Availability on Gas Exchange of Tropical Canopy Trees
Identifieur interne : 000E70 ( Main/Exploration ); précédent : 000E69; suivant : 000E71Influence of Seasonal Variations in Soil Water Availability on Gas Exchange of Tropical Canopy Trees
Auteurs : Clément Stahl ; Benoit Burban ; Fabien Wagner ; Jean-Yves Goret ; Félix Bompy ; Damien Bonal [France]Source :
- Biotropica [ 0006-3606 ] ; 2013-03.
Abstract
Seasonal variations in environmental conditions influence the functioning of the whole ecosystem of tropical rain forests, but as yet little is known about how such variations directly influence the leaf gas exchange and transpiration of individual canopy tree species. We examined the influence of seasonal variations in relative extractable water in the upper soil layers on predawn leaf water potential, saturated net photosynthesis, leaf dark respiration, stomatal conductance, and tree transpiration of 13 tropical rain forest canopy trees (eight species) over 2 yr in French Guiana. The canopies were accessed by climbing ropes attached to the trees and to a tower. Our results indicate that a small proportion of the studied trees were unaffected by soil water depletion during seasonal dry periods, probably thanks to efficient deep root systems. The trees showing decreased tree water status (i.e., predawn leaf water potential) displayed a wide range of leaf gas exchange responses. Some trees strongly regulated photosynthesis and transpiration when relative extractable water decreased drastically. In contrast, other trees showed little variation, thus indicating good adaptation to soil drought conditions. These results have important applications to modeling approaches: indeed, precise evaluation and grouping of these response patterns are required before any tree‐based functional models can efficiently describe the response of tropical rain forest ecosystems to future changes in environmental conditions.
Url:
DOI: 10.1111/j.1744-7429.2012.00902.x
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 001997
- to stream Istex, to step Curation: 001995
- to stream Istex, to step Checkpoint: 000077
- to stream Main, to step Merge: 000E98
- to stream Main, to step Curation: 000E70
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Influence of Seasonal Variations in Soil Water Availability on Gas Exchange of Tropical Canopy Trees</title><author><name sortKey="Stahl, Clement" sort="Stahl, Clement" uniqKey="Stahl C" first="Clément" last="Stahl">Clément Stahl</name></author><author><name sortKey="Burban, Benoit" sort="Burban, Benoit" uniqKey="Burban B" first="Benoit" last="Burban">Benoit Burban</name></author><author><name sortKey="Wagner, Fabien" sort="Wagner, Fabien" uniqKey="Wagner F" first="Fabien" last="Wagner">Fabien Wagner</name></author><author><name sortKey="Goret, Jean Ves" sort="Goret, Jean Ves" uniqKey="Goret J" first="Jean-Yves" last="Goret">Jean-Yves Goret</name></author><author><name sortKey="Bompy, Felix" sort="Bompy, Felix" uniqKey="Bompy F" first="Félix" last="Bompy">Félix Bompy</name></author><author><name sortKey="Bonal, Damien" sort="Bonal, Damien" uniqKey="Bonal D" first="Damien" last="Bonal">Damien Bonal</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:8388BE228ED3ED11D892BE76DA5719832E64F8AB</idno><date when="2013" year="2013">2013</date><idno type="doi">10.1111/j.1744-7429.2012.00902.x</idno><idno type="url">https://api.istex.fr/document/8388BE228ED3ED11D892BE76DA5719832E64F8AB/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001997</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001997</idno><idno type="wicri:Area/Istex/Curation">001995</idno><idno type="wicri:Area/Istex/Checkpoint">000077</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000077</idno><idno type="wicri:doubleKey">0006-3606:2013:Stahl C:influence:of:seasonal</idno><idno type="wicri:Area/Main/Merge">000E98</idno><idno type="wicri:Area/Main/Curation">000E70</idno><idno type="wicri:Area/Main/Exploration">000E70</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Influence of Seasonal Variations in Soil Water Availability on Gas Exchange of Tropical Canopy Trees</title><author><name sortKey="Stahl, Clement" sort="Stahl, Clement" uniqKey="Stahl C" first="Clément" last="Stahl">Clément Stahl</name><affiliation><wicri:noCountry code="subField">Guiana</wicri:noCountry></affiliation></author><author><name sortKey="Burban, Benoit" sort="Burban, Benoit" uniqKey="Burban B" first="Benoit" last="Burban">Benoit Burban</name><affiliation><wicri:noCountry code="subField">Guiana</wicri:noCountry></affiliation></author><author><name sortKey="Wagner, Fabien" sort="Wagner, Fabien" uniqKey="Wagner F" first="Fabien" last="Wagner">Fabien Wagner</name><affiliation><wicri:noCountry code="subField">Guiana</wicri:noCountry></affiliation></author><author><name sortKey="Goret, Jean Ves" sort="Goret, Jean Ves" uniqKey="Goret J" first="Jean-Yves" last="Goret">Jean-Yves Goret</name><affiliation><wicri:noCountry code="subField">Guiana</wicri:noCountry></affiliation></author><author><name sortKey="Bompy, Felix" sort="Bompy, Felix" uniqKey="Bompy F" first="Félix" last="Bompy">Félix Bompy</name><affiliation><wicri:noCountry code="subField">Guiana</wicri:noCountry></affiliation></author><author><name sortKey="Bonal, Damien" sort="Bonal, Damien" uniqKey="Bonal D" first="Damien" last="Bonal">Damien Bonal</name><affiliation></affiliation><affiliation wicri:level="3"><country xml:lang="fr">France</country><wicri:regionArea>INRA, UMR 1137 Université de Lorraine/INRA Nancy ‘Ecologie et Ecophysiologie Forestière’, 54280, Champenoux</wicri:regionArea><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Lorraine (région)</region><settlement type="city">Champenoux</settlement></placeName></affiliation><affiliation wicri:level="1"><country wicri:rule="url">France</country></affiliation></author></analytic><monogr></monogr><series><title level="j">Biotropica</title><title level="j" type="abbrev">Biotropica</title><idno type="ISSN">0006-3606</idno><idno type="eISSN">1744-7429</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><date type="published" when="2013-03">2013-03</date><biblScope unit="volume">45</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="155">155</biblScope><biblScope unit="page" to="164">164</biblScope></imprint><idno type="ISSN">0006-3606</idno></series><idno type="istex">8388BE228ED3ED11D892BE76DA5719832E64F8AB</idno><idno type="DOI">10.1111/j.1744-7429.2012.00902.x</idno><idno type="ArticleID">BTP902</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0006-3606</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">Seasonal variations in environmental conditions influence the functioning of the whole ecosystem of tropical rain forests, but as yet little is known about how such variations directly influence the leaf gas exchange and transpiration of individual canopy tree species. We examined the influence of seasonal variations in relative extractable water in the upper soil layers on predawn leaf water potential, saturated net photosynthesis, leaf dark respiration, stomatal conductance, and tree transpiration of 13 tropical rain forest canopy trees (eight species) over 2 yr in French Guiana. The canopies were accessed by climbing ropes attached to the trees and to a tower. Our results indicate that a small proportion of the studied trees were unaffected by soil water depletion during seasonal dry periods, probably thanks to efficient deep root systems. The trees showing decreased tree water status (i.e., predawn leaf water potential) displayed a wide range of leaf gas exchange responses. Some trees strongly regulated photosynthesis and transpiration when relative extractable water decreased drastically. In contrast, other trees showed little variation, thus indicating good adaptation to soil drought conditions. These results have important applications to modeling approaches: indeed, precise evaluation and grouping of these response patterns are required before any tree‐based functional models can efficiently describe the response of tropical rain forest ecosystems to future changes in environmental conditions.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Grand Est</li><li>Lorraine (région)</li></region><settlement><li>Champenoux</li></settlement></list><tree><noCountry><name sortKey="Bompy, Felix" sort="Bompy, Felix" uniqKey="Bompy F" first="Félix" last="Bompy">Félix Bompy</name><name sortKey="Burban, Benoit" sort="Burban, Benoit" uniqKey="Burban B" first="Benoit" last="Burban">Benoit Burban</name><name sortKey="Goret, Jean Ves" sort="Goret, Jean Ves" uniqKey="Goret J" first="Jean-Yves" last="Goret">Jean-Yves Goret</name><name sortKey="Stahl, Clement" sort="Stahl, Clement" uniqKey="Stahl C" first="Clément" last="Stahl">Clément Stahl</name><name sortKey="Wagner, Fabien" sort="Wagner, Fabien" uniqKey="Wagner F" first="Fabien" last="Wagner">Fabien Wagner</name></noCountry><country name="France"><region name="Grand Est"><name sortKey="Bonal, Damien" sort="Bonal, Damien" uniqKey="Bonal D" first="Damien" last="Bonal">Damien Bonal</name></region><name sortKey="Bonal, Damien" sort="Bonal, Damien" uniqKey="Bonal D" first="Damien" last="Bonal">Damien Bonal</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Sante/explor/ParkinsonFranceV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000E70 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000E70 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Sante
|area= ParkinsonFranceV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= ISTEX:8388BE228ED3ED11D892BE76DA5719832E64F8AB
|texte= Influence of Seasonal Variations in Soil Water Availability on Gas Exchange of Tropical Canopy Trees
}}
| This area was generated with Dilib version V0.6.29. |  |