Drought disturbance from climate change: response of United States forests
Identifieur interne : 000F39 ( Main/Merge ); précédent : 000F38; suivant : 000F40Drought disturbance from climate change: response of United States forests
Auteurs : Paul J. Hanson [États-Unis] ; Jake F. Weltzin [États-Unis]Source :
- Science of the Total Environment [ 0048-9697 ] ; 2000.
Descripteurs français
- Wicri :
- topic : Changement climatique, Sécheresse, Forêt.
English descriptors
- KwdEn :
Abstract
Predicted changes in climate have raised concerns about potential impacts on terrestrial forest ecosystem productivity, biogeochemical cycling, and the availability of water resources. This review summarizes characteristics of drought typical to the major forest regions of the United States, future drought projections, and important features of plant and forest community response to drought. Research needs and strategies for coping with future drought are also discussed. Notwithstanding uncertainties surrounding the magnitude and direction of future climate change, and the net impact on soil water availability to forests, a number of conclusions can be made regarding the sensitivity of forests to future drought. The primary response will be a reduction in net primary production and stand water use, which are driven by reductions in stomatal conductance. Mortality of small stature plants (i.e. seedlings and saplings) is a likely consequence of severe drought. In comparison, deep rooting and substantial reserves of carbohydrates and nutrients make mature trees less susceptible to water limitations caused by severe or prolonged drought. However, severe or prolonged drought may render even mature trees more susceptible to insects or disease. Drought-induced reductions in decomposition rates may cause a buildup of organic material on the forest floor, with ramifications for fire regimes and nutrient cycling. Although early model predictions of climate change impacts suggested extensive forest dieback and species migration, more recent analyses suggest that catastrophic dieback will be a local phenomenon, and changes in forest composition will be a relatively gradual process. Better climate predictions at regional scales, with a higher temporal resolution (months to days), coupled with carefully designed, field-based experiments that incorporate multiple driving variables (e.g. temperature and CO2), will advance our ability to predict the response of different forest regions to climate change.
Url:
DOI: 10.1016/S0048-9697(00)00523-4
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000368
- to stream Istex, to step Curation: 000367
- to stream Istex, to step Checkpoint: 000A95
Links to Exploration step
ISTEX:830A10CABBEA8CA375C582622A794AFC2E11552DLe document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Drought disturbance from climate change: response of United States forests</title><author><name sortKey="Hanson, Paul J" sort="Hanson, Paul J" uniqKey="Hanson P" first="Paul J." last="Hanson">Paul J. Hanson</name></author><author><name sortKey="Weltzin, Jake F" sort="Weltzin, Jake F" uniqKey="Weltzin J" first="Jake F." last="Weltzin">Jake F. Weltzin</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:830A10CABBEA8CA375C582622A794AFC2E11552D</idno><date when="2000" year="2000">2000</date><idno type="doi">10.1016/S0048-9697(00)00523-4</idno><idno type="url">https://api.istex.fr/document/830A10CABBEA8CA375C582622A794AFC2E11552D/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000368</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000368</idno><idno type="wicri:Area/Istex/Curation">000367</idno><idno type="wicri:Area/Istex/Checkpoint">000A95</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000A95</idno><idno type="wicri:doubleKey">0048-9697:2000:Hanson P:drought:disturbance:from</idno><idno type="wicri:Area/Main/Merge">000F39</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Drought disturbance from climate change: response of United States forests</title><author><name sortKey="Hanson, Paul J" sort="Hanson, Paul J" uniqKey="Hanson P" first="Paul J." last="Hanson">Paul J. Hanson</name><affiliation></affiliation><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Oak Ridge National Laboratory, P.O. Box 2008, Bethel Valley Road, Building 1059, Oak Ridge, TN 37831-6422</wicri:regionArea><placeName><region type="state">Tennessee</region></placeName></affiliation></author><author><name sortKey="Weltzin, Jake F" sort="Weltzin, Jake F" uniqKey="Weltzin J" first="Jake F." last="Weltzin">Jake F. Weltzin</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>University of Tennessee, Knoxville, TN 37996-1610</wicri:regionArea><placeName><region type="state">Tennessee</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Science of the Total Environment</title><title level="j" type="abbrev">STOTEN</title><idno type="ISSN">0048-9697</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="2000">2000</date><biblScope unit="volume">262</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="205">205</biblScope><biblScope unit="page" to="220">220</biblScope></imprint><idno type="ISSN">0048-9697</idno></series><idno type="istex">830A10CABBEA8CA375C582622A794AFC2E11552D</idno><idno type="DOI">10.1016/S0048-9697(00)00523-4</idno><idno type="PII">S0048-9697(00)00523-4</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0048-9697</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Climate change</term><term>Drought</term><term>Forest</term><term>Precipitation</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Changement climatique</term><term>Sécheresse</term><term>Forêt</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Predicted changes in climate have raised concerns about potential impacts on terrestrial forest ecosystem productivity, biogeochemical cycling, and the availability of water resources. This review summarizes characteristics of drought typical to the major forest regions of the United States, future drought projections, and important features of plant and forest community response to drought. Research needs and strategies for coping with future drought are also discussed. Notwithstanding uncertainties surrounding the magnitude and direction of future climate change, and the net impact on soil water availability to forests, a number of conclusions can be made regarding the sensitivity of forests to future drought. The primary response will be a reduction in net primary production and stand water use, which are driven by reductions in stomatal conductance. Mortality of small stature plants (i.e. seedlings and saplings) is a likely consequence of severe drought. In comparison, deep rooting and substantial reserves of carbohydrates and nutrients make mature trees less susceptible to water limitations caused by severe or prolonged drought. However, severe or prolonged drought may render even mature trees more susceptible to insects or disease. Drought-induced reductions in decomposition rates may cause a buildup of organic material on the forest floor, with ramifications for fire regimes and nutrient cycling. Although early model predictions of climate change impacts suggested extensive forest dieback and species migration, more recent analyses suggest that catastrophic dieback will be a local phenomenon, and changes in forest composition will be a relatively gradual process. Better climate predictions at regional scales, with a higher temporal resolution (months to days), coupled with carefully designed, field-based experiments that incorporate multiple driving variables (e.g. temperature and CO2), will advance our ability to predict the response of different forest regions to climate change.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Bois/explor/CheneBelgiqueV2/Data/Main/Merge
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000F39 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Merge/biblio.hfd -nk 000F39 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Bois
|area= CheneBelgiqueV2
|flux= Main
|étape= Merge
|type= RBID
|clé= ISTEX:830A10CABBEA8CA375C582622A794AFC2E11552D
|texte= Drought disturbance from climate change: response of United States forests
}}
| This area was generated with Dilib version V0.6.27. |  |