Javascript verkar inte påslaget? - Vissa delar av Lunds universitets webbplats fungerar inte optimalt utan javascript, kontrollera din webbläsares inställningar.
Du är här

Spatial variation and patterns of soil microbial community structure in a mixed spruce-birch stand

Publiceringsår: 2000
Språk: Engelska
Sidor: 909-917
Publikation/Tidskrift/Serie: Soil Biology & Biochemistry
Volym: 32
Nummer: 7
Dokumenttyp: Artikel i tidskrift
Förlag: Elsevier


To explore the spatial variation of the soil microbial community within a mixed Norway spruce-birch stand, and to test if the spatial patterns of the microbial community are related to the position of trees, we sampled the forest floor at two spatial scales and used the phospholipid fatty acid (PLFA) patterns as indicators of the microbial community structure. Of the 32 most common PLFAs, 20 (62%) were clearly spatially autocorrelated, and the limit of spatial dependence (range) varied between 1 m and 11 m. The variation in the community structure was examined by subjecting the PLFAs to a principal component analysis. The first two principal components described variation structured at two different spatial scales. The range of the microbial community for the first component was 4.6 m, whereas for the second component it was only 1.5 m. The microbial community was influenced by the position of the trees. Spruce trees had a much stronger influence on PLFA patterns than birch trees, and the first principal component, as well as 12 PLFAs, was influenced by spruce trees. Several branched PLFAs, characteristic of Gram-positive bacteria, loaded negatively on the second principal component. These PLFAs represent a complex of associated microorganisms that aggregated in small patches away from birch trees. A comparison with a laboratory experiment suggests that although the tree species differ in their influence on soil moisture and ground vegetation, their influence on the microbial community were, to a large extent, connected to the quality of soil organic matter associated with the two trees. (C) 2000 Elsevier Science Ltd. All rights reserved.


  • Biological Sciences


  • Microbial Ecology
  • ISSN: 0038-0717

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen