Supplementary file 1_Dark carbon fixation in tropical-subtropical lagoon and bay regional

Dark carbon fixation rates ranged from 0.31 to 0.72 mmol C m⁻² d⁻¹ in rhizosphere sediments across three coastal sites. This dataset by Bo Yang integrates sediment biogeochemical assays and 16S rRNA sequencing to investigate microbial communities and Calvin-Benson-Bassham cycle genes in vegetated and non-vegetated sediments. It was last updated on 2026-05-29.

Use Cases

• Modeling sediment carbon storage based on inorganic carbon content differences between vegetated and non-vegetated sediments.
• Analyzing microbial community composition based on the prevalence of sulfur-oxidizing Proteobacteria and γ-, α-, β-Proteobacteria.
• Investigating anthropogenic impacts on carbon fixation potential based on the described lowering of sediment cbbM abundance.
• Comparing carbon fixation patterns between lagoon and bay environments based on the dominance of different cbbL and cbbM genes.

Strengths

• Includes specific measured values for sediment inorganic carbon content (13.42 g kg⁻¹ vs 1.48 g kg⁻¹) and dark carbon fixation rates (0.31–0.72 mmol C m⁻² d⁻¹).
• Integrates multiple analytical methods: biogeochemical assays, 16S rRNA amplicon sequencing, PCR, and qPCR analyses.
• Compares data across three distinct geographic sites: Li’an Port, Xincun Bay, and Tieshan Port.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last updated 2026-05-29; freshness should be verified.

Provenance

Source

figshare

Collection Method

Sediment biogeochemical assays, 16S rRNA amplicon sequencing, PCR and qPCR analyses.

Freshness

2026-05-29

Geography

Tropical lagoons (Li’an Port, Xincun Bay) and a subtropical semi-enclosed bay (Tieshan Port).