Do diversity of plants, soil fungi and bacteria influence aggregate stability on ultramafic Ferralsols? A metagenomic approach in a tropical hotspot of biodiversity

Autor: Nicolas Fernandez Nuñez, Julien Demenois, Fabian Carriconde, Luis Merino-Martín, Alexia Stokes
Přispěvatelé: Agroécologie et Intensification Durables des cultures annuelles (UPR AIDA), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Institut Agronomique Néo-Calédonien (IAC), Equipe Sol & Végétation
Jazyk: angličtina
Rok vydání: 2020
Předmět:
0106 biological sciences
Ferralsol
Ultramafic substrates
Biologie du sol
Biodiversity
Soil Science
F62 - Physiologie végétale - Croissance et développement
Soil metagenomic
Conservation des sols
Plant Science
Ecological succession
[SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics
Phylogenetics and taxonomy
01 natural sciences
Système racinaire
Faune du sol
Diversity index
[SDV.EE.ECO]Life Sciences [q-bio]/Ecology
environment/Ecosystems
New Caledonia
Saprotroph
Shannon index
Restoration ecology
Simpson index
2. Zero hunger
Ecology
fungi
P34 - Biologie du sol
Plant community
04 agricultural and veterinary sciences
Soil carbon
15. Life on land
[SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics
humanities
13. Climate action
Metagenomics
040103 agronomy & agriculture
0401 agriculture
forestry
and fisheries
Environmental science
P01 - Conservation de la nature et ressources foncières
Species richness
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
human activities
010606 plant biology & botany
Zdroj: Plant and Soil
Plant and Soil, Springer Verlag, 2020, 448 (1-2), pp.213-229. ⟨10.1007/s11104-019-04364-8⟩
ISSN: 0032-079X
1573-5036
DOI: 10.1007/s11104-019-04364-8⟩
Popis: International audience; Aims: Understanding how soil aggregate stability (MWD) is influenced by microbial diversity and abundance can be crucial for ecological restoration in severely disturbed areas. We investigated the relationships between plant and soil microbial diversity and MWD of an ultramafic Ferralsol along a vegetational succession gradient in New Caledonia, where wildfires and extensive nickel mining have degraded the landscape. Methods: Five plant communities were studied. For each one, MWD, soil physicochemical parameters (e.g. soil organic carbon (SOC)), plant root traits and fungal abundance were measured. The diversity and structure of plant and microbial communities were respectively assessed via botanical inventories and a metagenomic approach. A generalized linear model (GLM) was used to assess the influence of diversity indexes on MWD. Constrained ordinations (CCA) were performed to assess the influence of communities' structures on MWD. Results GLM highlighted the linkage between SOC and MWD but did not identify any significant influence of diversity indexes on MWD. CCA revealed a significant influence of communities' structures, especially the abundance of saprotrophic fungi, on MWD. Conclusions: We showed that the structure, but not species richness and diversity of plants, soil fungi and bacteria influence aggregate stability on Ferralsols.
Databáze: OpenAIRE
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