Successional changes in microbial biomass, respiration and nutrient status during litter decomposition in an aspen and pine forest
Identifieur interne : 003F23 ( Main/Exploration ); précédent : 003F22; suivant : 003F24Successional changes in microbial biomass, respiration and nutrient status during litter decomposition in an aspen and pine forest
Auteurs : S. Scheu [Allemagne] ; D. Parkinson [Canada]Source :
- [ 0178-2762 ]
Abstract
Abstract: Microbial biomass, microbial respiration, metabolic quotient (qCO2), Cmic/Corg ratio and nutrient status of the microflora was investigated in different layers of an aspen (Populus tremuloides Michx.) and pine forest (Pinus contorta Loud.) in southwest Alberta, Canada. Changes in these parameters with soil depth were assumed to reflect successional changes in aging litter materials. The microbial nutrient status was investigated by analysing the respiratory response of glucose and nutrient (N and P) supplemented microorganisms. A strong decline in qCO2 with soil depth indicated a more efficient C use by microorganisms in later stages of decay in both forests. Cmic/Corg ratio also declined in the aspen forest with soil depth but in the pine forest it was at a maximum in the mineral soil layer. Microbial nutrient status in aspen leaf litter and pine needle litter indicated N limitation or high N demand, but changes in microbial nutrient status with soil depth differed strongly between both forests. In the aspen forest N deficiency appeared to decline in later stages of decay whereas P deficiency increased. In contrast, in the pine forest microbial growth was restricted mainly by N availability in each of the layers. Analysis of the respiratory response of CNP-supplemented microorganisms indicated that growth ability of microorganisms is related to the fungal-bacterial ratio.
Url:
DOI: 10.1007/BF00336103
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000026
- to stream Istex, to step Curation: 000026
- to stream Istex, to step Checkpoint: 001897
- to stream Main, to step Merge: 004645
- to stream Main, to step Curation: 003F23
Le document en format XML
<record><TEI wicri:istexFullTextTei="no"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Successional changes in microbial biomass, respiration and nutrient status during litter decomposition in an aspen and pine forest</title>
<author><name sortKey="Scheu, S" sort="Scheu, S" uniqKey="Scheu S" first="S." last="Scheu">S. Scheu</name>
</author>
<author><name sortKey="Parkinson, D" sort="Parkinson, D" uniqKey="Parkinson D" first="D." last="Parkinson">D. Parkinson</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:75BA55F31B2E502B32672E2786EA52C979F56596</idno>
<date when="1995" year="1995">1995</date>
<idno type="doi">10.1007/BF00336103</idno>
<idno type="url">https://api-v5.istex.fr/document/75BA55F31B2E502B32672E2786EA52C979F56596/fulltext/pdf</idno>
<idno type="wicri:Area/Istex/Corpus">000026</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000026</idno>
<idno type="wicri:Area/Istex/Curation">000026</idno>
<idno type="wicri:Area/Istex/Checkpoint">001897</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">001897</idno>
<idno type="wicri:doubleKey">0178-2762:1995:Scheu S:successional:changes:in</idno>
<idno type="wicri:Area/Main/Merge">004645</idno>
<idno type="wicri:Area/Main/Curation">003F23</idno>
<idno type="wicri:Area/Main/Exploration">003F23</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><author><name sortKey="Scheu, S" sort="Scheu, S" uniqKey="Scheu S" first="S." last="Scheu">S. Scheu</name>
<affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country>
<wicri:regionArea>Abteilung Ökologie, II Zoologisches Institut, Berliner Strasse 28, D-37073, Göttingen</wicri:regionArea>
<placeName><region type="land" nuts="2">Basse-Saxe</region>
<settlement type="city">Göttingen</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Parkinson, D" sort="Parkinson, D" uniqKey="Parkinson D" first="D." last="Parkinson">D. Parkinson</name>
<affiliation wicri:level="4"><country xml:lang="fr">Canada</country>
<wicri:regionArea>Department of Biology, University of Calgary, 2500 University Drive NW, Calgary, Alberta</wicri:regionArea>
<orgName type="university">Université de Calgary</orgName>
<placeName><settlement type="city">Calgary</settlement>
<region type="state">Alberta</region>
</placeName>
</affiliation>
</author>
</analytic>
<series><idno type="ISSN">0178-2762</idno>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><idno type="ISSN">0178-2762</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass></textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Abstract: Microbial biomass, microbial respiration, metabolic quotient (qCO2), Cmic/Corg ratio and nutrient status of the microflora was investigated in different layers of an aspen (Populus tremuloides Michx.) and pine forest (Pinus contorta Loud.) in southwest Alberta, Canada. Changes in these parameters with soil depth were assumed to reflect successional changes in aging litter materials. The microbial nutrient status was investigated by analysing the respiratory response of glucose and nutrient (N and P) supplemented microorganisms. A strong decline in qCO2 with soil depth indicated a more efficient C use by microorganisms in later stages of decay in both forests. Cmic/Corg ratio also declined in the aspen forest with soil depth but in the pine forest it was at a maximum in the mineral soil layer. Microbial nutrient status in aspen leaf litter and pine needle litter indicated N limitation or high N demand, but changes in microbial nutrient status with soil depth differed strongly between both forests. In the aspen forest N deficiency appeared to decline in later stages of decay whereas P deficiency increased. In contrast, in the pine forest microbial growth was restricted mainly by N availability in each of the layers. Analysis of the respiratory response of CNP-supplemented microorganisms indicated that growth ability of microorganisms is related to the fungal-bacterial ratio.</div>
</front>
</TEI>
<affiliations><list><country><li>Allemagne</li>
<li>Canada</li>
</country>
<region><li>Alberta</li>
<li>Basse-Saxe</li>
</region>
<settlement><li>Calgary</li>
<li>Göttingen</li>
</settlement>
<orgName><li>Université de Calgary</li>
</orgName>
</list>
<tree><country name="Allemagne"><region name="Basse-Saxe"><name sortKey="Scheu, S" sort="Scheu, S" uniqKey="Scheu S" first="S." last="Scheu">S. Scheu</name>
</region>
</country>
<country name="Canada"><region name="Alberta"><name sortKey="Parkinson, D" sort="Parkinson, D" uniqKey="Parkinson D" first="D." last="Parkinson">D. Parkinson</name>
</region>
</country>
</tree>
</affiliations>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Canada/explor/ParkinsonCanadaV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 003F23 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 003F23 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Wicri/Canada |area= ParkinsonCanadaV1 |flux= Main |étape= Exploration |type= RBID |clé= ISTEX:75BA55F31B2E502B32672E2786EA52C979F56596 |texte= Successional changes in microbial biomass, respiration and nutrient status during litter decomposition in an aspen and pine forest }}
This area was generated with Dilib version V0.6.29. |