Towards the development of multifunctional molecular indicators combining soil biogeochemical and microbiological variables to predict the ecological integrity of silvicultural practices.

Abstract : The impact of mechanical site preparation (MSP) on soil biogeochemical structure in young larch plantations was investigated. Soil samples were collected in replicated plots comprising simple trenching, double trenching, mounding and inverting site preparation. Unlogged natural mixed forest areas were used as a reference. Analysis of soil nutrients, abundance of bacteria and gas exchanges unveiled no significant difference among the plots. However, inverting site preparation resulted in higher variations of gas exchanges when compared with trenching, mounding and unlogged natural forest. A combination of the biological and physicochemical variables was used to define a multifunctional classification of the soil samples into four distinct groups categorized as a function of their deviation from baseline ecological conditions. According to this classification model, simple trenching was the approach that represented the lowest ecological risk potential at the microsite level. No relationship was observed between MSP method and soil bacterial community structure as assessed by high-throughput sequencing of bacterial 16S rRNA gene; however, indicator genotypes were identified for each multifunctional soil class. This is the first identification of multifunctional molecular indicators for baseline and disturbed ecological conditions in soil, demonstrating the potential of applied microbial ecology to guide silvicultural practices and ecological risk assessment.
Type de document :
Article dans une revue
Microbial Biotechnology, Wiley, 2016, 9 (3), pp.316-29. 〈10.1111/1751-7915.12348 〉
Liste complète des métadonnées

Littérature citée [53 références]  Voir  Masquer  Télécharger

https://hal-riip.archives-ouvertes.fr/pasteur-01351533
Contributeur : Michel Courcelles <>
Soumis le : mercredi 3 août 2016 - 21:18:07
Dernière modification le : lundi 5 février 2018 - 15:22:10
Document(s) archivé(s) le : vendredi 4 novembre 2016 - 12:20:13

Fichier

Peck_et_al-2016-Microbial_Biot...
Publication financée par une institution

Licence


Distributed under a Creative Commons Paternité 4.0 International License

Identifiants

Collections

Citation

Vincent Peck, Liliana Quiza, Jean-Philippe Buffet, Mondher Khdhiri, Audrey-Anne Durand, et al.. Towards the development of multifunctional molecular indicators combining soil biogeochemical and microbiological variables to predict the ecological integrity of silvicultural practices.. Microbial Biotechnology, Wiley, 2016, 9 (3), pp.316-29. 〈10.1111/1751-7915.12348 〉. 〈pasteur-01351533〉

Partager

Métriques

Consultations de la notice

61

Téléchargements de fichiers

58