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Soil Microbial Recovery to the Rubber Tree Replanting Process in Ivory Coast.
Aymard Kouakou Kouakou1,2,3,4, Paul Collart5, Thibaut Perron6,7
1Centre de Recherche en Ecologie de L, Université NANGUI ABROGOUA, Abidjan, Côte d'Ivoire. aymard01kouakou@gmail.com.
Microbial Ecology
|March 13, 2025
Summary
Soil microbial communities in rubber plantations show varying resistance and resilience to disturbances. Agroecological practices combining cover crops and residues can enhance resilience, especially in sandy soils.
Area of Science:
- Soil science
- Microbiology
- Tropical agriculture
Background:
- Limited understanding of soil microbial community resistance and resilience to disturbances.
- Need for field-based diachronic experiments to inform agroecological practices.
- Rubber plantations are significant tropical land-use systems.
Purpose of the Study:
- Investigate soil microbiome response to rubber replanting disturbances.
- Assess how agricultural practices (legume cover crops, logging residues) influence microbial resilience.
- Determine variations in microbial responses across different soil types.
Main Methods:
- Field diachronic study over 24 months in two Ivory Coast rubber plantations.
- Soil microbial community analysis using 16S/18S rRNA gene sequencing.
- Community structure, function, and network analysis.
Main Results:
- Prokaryotes exhibited higher resistance and faster resilience than microeukaryotes post-disturbance.
- Microeukaryote resilience was significantly modulated by cover crop treatments.
- Sandy soil sites showed exacerbated microbial dynamics and lower resilience.
- Co-occurrence network modeling revealed microbial resilience trajectories.
Conclusions:
- Agroecological practices combining logging residues and legume cover crops promote microbial resilience, particularly in sandy soils.
- Soil texture is a critical factor influencing microbial community dynamics and resilience.
- Co-occurrence network analysis is a valuable tool for studying microbial resilience.
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