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This research investigates the contributions of plant-derived and microbial-derived carbon to soil organic carbon accumulation during vegetation restoration in sandy land.

March 7, 2026Applied Soil EcologyOpen Access

Vegetation restoration drives a shift from plant-derived to microbial-derived soil organic carbon accumulation in a semi-arid sandy land in China

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This research investigates the contributions of plant-derived and microbial-derived carbon to soil organic carbon accumulation during vegetation restoration in sandy land.
Assessed a five-stage vegetation restoration gradient from mobile dunes to forest-grassland.
Utilized lignin phenol and amino sugar biomarkers to analyze soil organic carbon dynamics.
Applied Random Forest modeling and structural equation modeling to identify predictors of soil organic carbon composition.
Vegetation restoration significantly promoted total soil organic carbon, decreasing plant-derived carbon from 58% to 14%.
Microbial-derived carbon increased from 3.85% to 33%, becoming the primary contributor during later restoration stages.
Fungal necromass outweighed bacterial necromass despite a shift towards bacterial dominance in the microbial community.

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Implication

This research finds that vegetation restoration alters soil organic carbon sources in semi-arid sandy lands, suggesting a focus on microbial-driven strategies.

Cite This Study

Lu et al. (2026) studied this question.

synapsesocial.com/papers/69abc1015af8044f7a4e9956 https://doi.org/10.1016/j.apsoil.2026.106931

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Implication

This research finds that vegetation restoration alters soil organic carbon sources in semi-arid sandy lands, suggesting a focus on microbial-driven strategies.

Vegetation restoration drives a shift from plant-derived to microbial-derived soil organic carbon accumulation in a semi-arid sandy land in China

Key Points

Discussion

Implication

Cite This Study

Vegetation restoration drives a shift from plant-derived to microbial-derived soil organic carbon accumulation in a semi-arid sandy land in China

Key Points

Discussion

Implication

Cite This Study

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