ArticleFrontiers in microbiology2025
From arid deserts to mesic meadows: divergent pathways regulating microbial respiration under grassland enclosure.
Article in Frontiers in microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Microbial functional gene assembly is associated with soil carbon and nitrogen dynamics during grassland degradation.Frontiers in microbiology · 2026Article
- Nitrogen addition has negative effects on bacterial diversity and stability, but simulated grazing mitigates these effects.Frontiers in microbiology · 2026Article
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Authors and funding
6 authors.
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Abstract
Introduction: As a pivotal restoration strategy for alleviating grassland degradation, long-term enclosure practices effectively eliminate livestock disturbances while facilitating ecosystem self-recovery. Understanding the dynamics of soil microbial respiration under enclosure management is crucial, as it provides a scientific foundation for optimizing grassland utilization and contributes to global research on the terrestrial carbon cycle. Methods: We conducted a comparative study across three distinct enclosed grassland ecosystems in Xinjiang, China: temperate desert, temperate steppe, and mountain meadow. Through analyzing microbial community structure, diversity, assembly processes, and respiration rates between 9-year enclosed and grazed areas, we identified key ecological shifts. Results: Three key advancements emerged: (1) Enclosure implementation led to a marked improvement in soil resource availability, triggering microbial community shifts from oligotrophic to eutrophic states with substantial biodiversity increases (bacterial diversity: 2.2-14%; fungal diversity: 12.4-27.2%); (2) Divergent assembly mechanisms were observed where surface soil bacterial communities (0-5 cm depth) transitioned from 55.6 to 100% deterministic processes, directly contrasting with fungal communities that shifted from 11.1 to 55.6% stochastic dominance; (3) Partial Least Squares Path Modeling (PLS-PM) revealed distinct ecosystem-specific regulatory mechanisms underpinning reduced microbial respiration. Discussion: The PLS-PM analysis detailed these distinct mechanisms: soil property-induced microbial metabolic trade-offs enhanced carbon use efficiency in temperate desert (
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