Aboveground and belowground responses to quality and heterogeneity of organic inputs to the boreal forest.
Identifieur interne : 000275 ( Main/Exploration ); précédent : 000274; suivant : 000276Aboveground and belowground responses to quality and heterogeneity of organic inputs to the boreal forest.
Auteurs : Helena Dehlin [Suède] ; Marie-Charlotte Nilsson ; David A. WardleSource :
- Oecologia [ 0029-8549 ] ; 2006.
Descripteurs français
- KwdFr :
- MESH :
- analyse : Dioxyde de carbone, Engrais, Sol.
- croissance et développement : Betula.
- Analyse de variance, Analyse en composantes principales, Arbres, Microbiologie du sol, Suède, Écosystème.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Carbon Dioxide, Fertilizers, Soil.
- growth & development : Betula.
- Analysis of Variance, Ecosystem, Principal Component Analysis, Soil Microbiology, Sweden, Trees.
Abstract
Leaf litter and other organic resources returned to the soil are important regulators of ecological processes in forest ecosystems, and their ecological impacts may be strongly influenced both by their quality and by interactions between coexisting resource types. To date, most studies on effects of resource identity and mixing have only involved leaf litter, despite the fact that other resource types constitute a major input to the soil. We investigated how quality and heterogeneity of organic substrates found in boreal forests affects the activity and community structure of soil microbes, and plant growth. Six organic substrates (wood, charcoal, berries, sporocarps, vertebrate faeces and leaf litter) were added singly or in mixtures of two, three and six resource types to pots containing forest soil (with or without tree seedlings of Betula pendula Roth). The largest positive effects of single substrates on microbial basal respiration (BR), substrate-induced respiration (SIR) and microbial metabolic quotient (qCO(2)) were found for nutrient-rich substrates (faeces and sporocarps) or substrates with high sugar-content (berries). Mixing of substrates had no effect on BR or SIR, but decreased qCO(2) or altered the microbial community structure for specific combinations of substrates. In contrast to the niche complementarity hypothesis, microbial catabolic diversity was not stimulated by greater diversity of resources. Seedling growth responses to single substrates were neutral or negative; the inhibition of growth probably resulted largely from microbial competition for nutrients. Substrate mixing enhanced seedling nutrient-uptake and growth for all mixtures containing sporocarps and leaf litter. Overall, plants responded more strongly to resource heterogeneity than microbes, and synergistic effects only occurred when nutrient-rich substrates were present within the substrate mixtures. In particular, our results demonstrate a role for complex and non-additive interactions among previously overlooked resource types returned to the soil in influencing ecosystem functions such as nutrient cycling and plant productivity.
DOI: 10.1007/s00442-006-0501-5
PubMed: 16896771
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Aboveground and belowground responses to quality and heterogeneity of organic inputs to the boreal forest.</title>
<author><name sortKey="Dehlin, Helena" sort="Dehlin, Helena" uniqKey="Dehlin H" first="Helena" last="Dehlin">Helena Dehlin</name>
<affiliation wicri:level="1"><nlm:affiliation>Department of Forest Vegetation Ecology, Faculty of Forest Science, Swedish University of Agricultural Sciences, 901 83, Umea, Sweden. Helena.Dehlin@svek.slu.se</nlm:affiliation>
<country xml:lang="fr">Suède</country>
<wicri:regionArea>Department of Forest Vegetation Ecology, Faculty of Forest Science, Swedish University of Agricultural Sciences, 901 83, Umea</wicri:regionArea>
<wicri:noRegion>Umea</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Nilsson, Marie Charlotte" sort="Nilsson, Marie Charlotte" uniqKey="Nilsson M" first="Marie-Charlotte" last="Nilsson">Marie-Charlotte Nilsson</name>
</author>
<author><name sortKey="Wardle, David A" sort="Wardle, David A" uniqKey="Wardle D" first="David A" last="Wardle">David A. Wardle</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PubMed</idno>
<date when="2006">2006</date>
<idno type="RBID">pubmed:16896771</idno>
<idno type="pmid">16896771</idno>
<idno type="doi">10.1007/s00442-006-0501-5</idno>
<idno type="wicri:Area/Main/Corpus">000272</idno>
<idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000272</idno>
<idno type="wicri:Area/Main/Curation">000272</idno>
<idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">000272</idno>
<idno type="wicri:Area/Main/Exploration">000272</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en">Aboveground and belowground responses to quality and heterogeneity of organic inputs to the boreal forest.</title>
<author><name sortKey="Dehlin, Helena" sort="Dehlin, Helena" uniqKey="Dehlin H" first="Helena" last="Dehlin">Helena Dehlin</name>
<affiliation wicri:level="1"><nlm:affiliation>Department of Forest Vegetation Ecology, Faculty of Forest Science, Swedish University of Agricultural Sciences, 901 83, Umea, Sweden. Helena.Dehlin@svek.slu.se</nlm:affiliation>
<country xml:lang="fr">Suède</country>
<wicri:regionArea>Department of Forest Vegetation Ecology, Faculty of Forest Science, Swedish University of Agricultural Sciences, 901 83, Umea</wicri:regionArea>
<wicri:noRegion>Umea</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Nilsson, Marie Charlotte" sort="Nilsson, Marie Charlotte" uniqKey="Nilsson M" first="Marie-Charlotte" last="Nilsson">Marie-Charlotte Nilsson</name>
</author>
<author><name sortKey="Wardle, David A" sort="Wardle, David A" uniqKey="Wardle D" first="David A" last="Wardle">David A. Wardle</name>
</author>
</analytic>
<series><title level="j">Oecologia</title>
<idno type="ISSN">0029-8549</idno>
<imprint><date when="2006" type="published">2006</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Analysis of Variance (MeSH)</term>
<term>Betula (growth & development)</term>
<term>Carbon Dioxide (analysis)</term>
<term>Ecosystem (MeSH)</term>
<term>Fertilizers (analysis)</term>
<term>Principal Component Analysis (MeSH)</term>
<term>Soil (analysis)</term>
<term>Soil Microbiology (MeSH)</term>
<term>Sweden (MeSH)</term>
<term>Trees (MeSH)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>Analyse de variance (MeSH)</term>
<term>Analyse en composantes principales (MeSH)</term>
<term>Arbres (MeSH)</term>
<term>Betula (croissance et développement)</term>
<term>Dioxyde de carbone (analyse)</term>
<term>Engrais (analyse)</term>
<term>Microbiologie du sol (MeSH)</term>
<term>Sol (analyse)</term>
<term>Suède (MeSH)</term>
<term>Écosystème (MeSH)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Carbon Dioxide</term>
<term>Fertilizers</term>
<term>Soil</term>
</keywords>
<keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Dioxyde de carbone</term>
<term>Engrais</term>
<term>Sol</term>
</keywords>
<keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Betula</term>
</keywords>
<keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Betula</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Analysis of Variance</term>
<term>Ecosystem</term>
<term>Principal Component Analysis</term>
<term>Soil Microbiology</term>
<term>Sweden</term>
<term>Trees</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr"><term>Analyse de variance</term>
<term>Analyse en composantes principales</term>
<term>Arbres</term>
<term>Microbiologie du sol</term>
<term>Suède</term>
<term>Écosystème</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Leaf litter and other organic resources returned to the soil are important regulators of ecological processes in forest ecosystems, and their ecological impacts may be strongly influenced both by their quality and by interactions between coexisting resource types. To date, most studies on effects of resource identity and mixing have only involved leaf litter, despite the fact that other resource types constitute a major input to the soil. We investigated how quality and heterogeneity of organic substrates found in boreal forests affects the activity and community structure of soil microbes, and plant growth. Six organic substrates (wood, charcoal, berries, sporocarps, vertebrate faeces and leaf litter) were added singly or in mixtures of two, three and six resource types to pots containing forest soil (with or without tree seedlings of Betula pendula Roth). The largest positive effects of single substrates on microbial basal respiration (BR), substrate-induced respiration (SIR) and microbial metabolic quotient (qCO(2)) were found for nutrient-rich substrates (faeces and sporocarps) or substrates with high sugar-content (berries). Mixing of substrates had no effect on BR or SIR, but decreased qCO(2) or altered the microbial community structure for specific combinations of substrates. In contrast to the niche complementarity hypothesis, microbial catabolic diversity was not stimulated by greater diversity of resources. Seedling growth responses to single substrates were neutral or negative; the inhibition of growth probably resulted largely from microbial competition for nutrients. Substrate mixing enhanced seedling nutrient-uptake and growth for all mixtures containing sporocarps and leaf litter. Overall, plants responded more strongly to resource heterogeneity than microbes, and synergistic effects only occurred when nutrient-rich substrates were present within the substrate mixtures. In particular, our results demonstrate a role for complex and non-additive interactions among previously overlooked resource types returned to the soil in influencing ecosystem functions such as nutrient cycling and plant productivity.</div>
</front>
</TEI>
<pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">16896771</PMID>
<DateCompleted><Year>2007</Year>
<Month>01</Month>
<Day>05</Day>
</DateCompleted>
<DateRevised><Year>2018</Year>
<Month>11</Month>
<Day>13</Day>
</DateRevised>
<Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0029-8549</ISSN>
<JournalIssue CitedMedium="Print"><Volume>150</Volume>
<Issue>1</Issue>
<PubDate><Year>2006</Year>
<Month>Nov</Month>
</PubDate>
</JournalIssue>
<Title>Oecologia</Title>
<ISOAbbreviation>Oecologia</ISOAbbreviation>
</Journal>
<ArticleTitle>Aboveground and belowground responses to quality and heterogeneity of organic inputs to the boreal forest.</ArticleTitle>
<Pagination><MedlinePgn>108-18</MedlinePgn>
</Pagination>
<Abstract><AbstractText>Leaf litter and other organic resources returned to the soil are important regulators of ecological processes in forest ecosystems, and their ecological impacts may be strongly influenced both by their quality and by interactions between coexisting resource types. To date, most studies on effects of resource identity and mixing have only involved leaf litter, despite the fact that other resource types constitute a major input to the soil. We investigated how quality and heterogeneity of organic substrates found in boreal forests affects the activity and community structure of soil microbes, and plant growth. Six organic substrates (wood, charcoal, berries, sporocarps, vertebrate faeces and leaf litter) were added singly or in mixtures of two, three and six resource types to pots containing forest soil (with or without tree seedlings of Betula pendula Roth). The largest positive effects of single substrates on microbial basal respiration (BR), substrate-induced respiration (SIR) and microbial metabolic quotient (qCO(2)) were found for nutrient-rich substrates (faeces and sporocarps) or substrates with high sugar-content (berries). Mixing of substrates had no effect on BR or SIR, but decreased qCO(2) or altered the microbial community structure for specific combinations of substrates. In contrast to the niche complementarity hypothesis, microbial catabolic diversity was not stimulated by greater diversity of resources. Seedling growth responses to single substrates were neutral or negative; the inhibition of growth probably resulted largely from microbial competition for nutrients. Substrate mixing enhanced seedling nutrient-uptake and growth for all mixtures containing sporocarps and leaf litter. Overall, plants responded more strongly to resource heterogeneity than microbes, and synergistic effects only occurred when nutrient-rich substrates were present within the substrate mixtures. In particular, our results demonstrate a role for complex and non-additive interactions among previously overlooked resource types returned to the soil in influencing ecosystem functions such as nutrient cycling and plant productivity.</AbstractText>
</Abstract>
<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Dehlin</LastName>
<ForeName>Helena</ForeName>
<Initials>H</Initials>
<AffiliationInfo><Affiliation>Department of Forest Vegetation Ecology, Faculty of Forest Science, Swedish University of Agricultural Sciences, 901 83, Umea, Sweden. Helena.Dehlin@svek.slu.se</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Nilsson</LastName>
<ForeName>Marie-Charlotte</ForeName>
<Initials>MC</Initials>
</Author>
<Author ValidYN="Y"><LastName>Wardle</LastName>
<ForeName>David A</ForeName>
<Initials>DA</Initials>
</Author>
</AuthorList>
<Language>eng</Language>
<PublicationTypeList><PublicationType UI="D003160">Comparative Study</PublicationType>
<PublicationType UI="D016428">Journal Article</PublicationType>
<PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType>
</PublicationTypeList>
<ArticleDate DateType="Electronic"><Year>2006</Year>
<Month>08</Month>
<Day>03</Day>
</ArticleDate>
</Article>
<MedlineJournalInfo><Country>Germany</Country>
<MedlineTA>Oecologia</MedlineTA>
<NlmUniqueID>0150372</NlmUniqueID>
<ISSNLinking>0029-8549</ISSNLinking>
</MedlineJournalInfo>
<ChemicalList><Chemical><RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D005308">Fertilizers</NameOfSubstance>
</Chemical>
<Chemical><RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D012987">Soil</NameOfSubstance>
</Chemical>
<Chemical><RegistryNumber>142M471B3J</RegistryNumber>
<NameOfSubstance UI="D002245">Carbon Dioxide</NameOfSubstance>
</Chemical>
</ChemicalList>
<CitationSubset>IM</CitationSubset>
<MeshHeadingList><MeshHeading><DescriptorName UI="D000704" MajorTopicYN="N">Analysis of Variance</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D029662" MajorTopicYN="N">Betula</DescriptorName>
<QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D002245" MajorTopicYN="N">Carbon Dioxide</DescriptorName>
<QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D017753" MajorTopicYN="Y">Ecosystem</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D005308" MajorTopicYN="N">Fertilizers</DescriptorName>
<QualifierName UI="Q000032" MajorTopicYN="Y">analysis</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D025341" MajorTopicYN="N">Principal Component Analysis</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName>
<QualifierName UI="Q000032" MajorTopicYN="Y">analysis</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D012988" MajorTopicYN="Y">Soil Microbiology</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D013548" MajorTopicYN="N">Sweden</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D014197" MajorTopicYN="Y">Trees</DescriptorName>
</MeshHeading>
</MeshHeadingList>
</MedlineCitation>
<PubmedData><History><PubMedPubDate PubStatus="received"><Year>2005</Year>
<Month>10</Month>
<Day>15</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="accepted"><Year>2006</Year>
<Month>06</Month>
<Day>30</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="pubmed"><Year>2006</Year>
<Month>8</Month>
<Day>10</Day>
<Hour>9</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="medline"><Year>2007</Year>
<Month>1</Month>
<Day>6</Day>
<Hour>9</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="entrez"><Year>2006</Year>
<Month>8</Month>
<Day>10</Day>
<Hour>9</Hour>
<Minute>0</Minute>
</PubMedPubDate>
</History>
<PublicationStatus>ppublish</PublicationStatus>
<ArticleIdList><ArticleId IdType="pubmed">16896771</ArticleId>
<ArticleId IdType="doi">10.1007/s00442-006-0501-5</ArticleId>
</ArticleIdList>
<ReferenceList><Reference><Citation>Oecologia. 1998 Jul;115(3):419-426</Citation>
<ArticleIdList><ArticleId IdType="pubmed">28308435</ArticleId>
</ArticleIdList>
</Reference>
<Reference><Citation>Oecologia. 2003 Dec;137(4):578-86</Citation>
<ArticleIdList><ArticleId IdType="pubmed">14505026</ArticleId>
</ArticleIdList>
</Reference>
<Reference><Citation>Oecologia. 2002 Jan;130(1):88-95</Citation>
<ArticleIdList><ArticleId IdType="pubmed">28547029</ArticleId>
</ArticleIdList>
</Reference>
<Reference><Citation>Proc Natl Acad Sci U S A. 2005 Feb 1;102(5):1519-24</Citation>
<ArticleIdList><ArticleId IdType="pubmed">15671172</ArticleId>
</ArticleIdList>
</Reference>
<Reference><Citation>Ecology. 2006 Mar;87(3):580-93</Citation>
<ArticleIdList><ArticleId IdType="pubmed">16602288</ArticleId>
</ArticleIdList>
</Reference>
<Reference><Citation>Oecologia. 2003 May;135(4):606-14</Citation>
<ArticleIdList><ArticleId IdType="pubmed">12684861</ArticleId>
</ArticleIdList>
</Reference>
<Reference><Citation>J Agric Food Chem. 2001 Aug;49(8):4076-82</Citation>
<ArticleIdList><ArticleId IdType="pubmed">11513713</ArticleId>
</ArticleIdList>
</Reference>
<Reference><Citation>Oecologia. 2001 Sep;129(1):133-138</Citation>
<ArticleIdList><ArticleId IdType="pubmed">28547060</ArticleId>
</ArticleIdList>
</Reference>
<Reference><Citation>Oecologia. 2002 Oct;133(2):206-214</Citation>
<ArticleIdList><ArticleId IdType="pubmed">28547308</ArticleId>
</ArticleIdList>
</Reference>
<Reference><Citation>Oecologia. 2005 Mar;143(2):232-40</Citation>
<ArticleIdList><ArticleId IdType="pubmed">15703913</ArticleId>
</ArticleIdList>
</Reference>
<Reference><Citation>J Chem Ecol. 1996 May;22(5):973-86</Citation>
<ArticleIdList><ArticleId IdType="pubmed">24227618</ArticleId>
</ArticleIdList>
</Reference>
</ReferenceList>
</PubmedData>
</pubmed>
<affiliations><list><country><li>Suède</li>
</country>
</list>
<tree><noCountry><name sortKey="Nilsson, Marie Charlotte" sort="Nilsson, Marie Charlotte" uniqKey="Nilsson M" first="Marie-Charlotte" last="Nilsson">Marie-Charlotte Nilsson</name>
<name sortKey="Wardle, David A" sort="Wardle, David A" uniqKey="Wardle D" first="David A" last="Wardle">David A. Wardle</name>
</noCountry>
<country name="Suède"><noRegion><name sortKey="Dehlin, Helena" sort="Dehlin, Helena" uniqKey="Dehlin H" first="Helena" last="Dehlin">Helena Dehlin</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Bois/explor/TreeMicInterV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000275 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000275 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Bois |area= TreeMicInterV1 |flux= Main |étape= Exploration |type= RBID |clé= pubmed:16896771 |texte= Aboveground and belowground responses to quality and heterogeneity of organic inputs to the boreal forest. }}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Exploration/RBID.i -Sk "pubmed:16896771" \ | HfdSelect -Kh $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd \ | NlmPubMed2Wicri -a TreeMicInterV1
This area was generated with Dilib version V0.6.37. |