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Soil microbial community structure and activity in monospecific and mixed forest stands, under mediterranean humid conditions

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Date
2011
Author
Bastida Lopez, Felipe
Andrés Abellán, Manuela
Lucas Borja, Manuel Esteban
Candel Perez, David
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Abstract
? Aims: We investigated the link between tree community composition and soil microbial community biomass and structure in Central-Eastern Spain. ? Methods: The effects of the forest stand composition on the soil organic matter dynamics and on the structure and activity of the soil microbial community have been determined using phospholipid fatty acid profiles and soil enzymatic activities. ? Results: The soil and litter N and C contents were higher in Pinus nigra Arn. ssp salzmannii and Quercus ilex mixed forest stands (SBHO) and in long-term unmanaged Pinus nigra Arn. ssp salzmannii forest stands (SBPC) than in pure Pinus nigra Arn. ssp salzmannii forest stands (SBPA) and Pinus nigra Arn. ssp salzmannii and Juniperus thurifera mixed forest stands (SBSJ). The bacterial biomass was significantly higher in SBSJ and SBPA than in SBPC and SBHO. The results show an uncoupling of the soil microbial biomass and its activity. pH is related to microbial biomass and its community structure under a Mediterranean humid climate. ? Conclusions: The tree species seem to affect the biomass of the soil microbial community and its structure. The pH, but not C/N ratio, is a factor influencing the microbial dynamics, biomass, and community structure.
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http://hdl.handle.net/10578/1783
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© Universidad de Castilla-La Mancha
Rectorado
C/ Altagracia, 50 13071
Ciudad Real Tfno. 926 29 53 00
Fax: 926 29 53 01

Copyright | Documentation | Other Resources | Contact Us
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¿RUIdeRA?

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