Multi-Tracer Groundwater Flow Data from a Bedrock Mountain Tunnel in Southwestern China

Yajing Zhao's dataset contains multi-tracer data supporting a groundwater flow study in a bedrock mountain area of southwestern China. The 1.9 GB collection includes 16S rRNA sequences, groundwater physicochemical parameters, stable water isotopes (δ²H, δ¹⁸O), ³H and ¹⁴C measurements, precipitation isotopes, microbial community composition, and calculated flow velocities. All samples were collected from a 4-km tunnel and the dataset was last updated on 2026-05-28.

Use Cases

• Characterizing groundwater flow paths and velocities based on isotopic and hydrochemical tracer data.
• Analyzing microbial community composition in groundwater based on 16S rRNA sequence data.
• Modeling groundwater recharge and age distribution based on tritium (³H) and radiocarbon (¹⁴C) measurements.
• Investigating relationships between groundwater chemistry and microbial ecology mentioned in the description.

Strengths

• Integrates multiple tracer types (isotopic, hydrochemical, microbial) for a multi-faceted analysis.
• All samples were collected from a spatially defined 4-km tunnel, providing a controlled study transect.
• Dataset is 1.9 GB in size, indicating a substantial volume of raw sequence and measurement data.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for specific modeling tasks.
• The geographic scope is limited to a single tunnel in southwestern China.

Provenance

Source

Yajing Zhao via figshare.

Collection Method

Samples collected from a 4-km tunnel; methods for isotopic, hydrochemical, and microbial analysis are implied but not detailed.

Freshness

Last updated 2026-05-28 02:19:20; freshness should be verified.

Geography

Bedrock mountain area in southwestern China.