Soil Database of China with 1 km Resolution and 8 Depth Layers

30 arc-second resolution soil data for China, capturing vertical variation across eight layers down to 2.3 meters. This database includes over 20 physical and chemical attributes, such as pH, organic matter, and nutrient levels, developed by SCIOPS for land surface modeling. Quality control information is provided for the soil characteristics.

Use Cases

• Calibrating land surface model parameters based on soil physical attributes like bulk density and porosity
• Analyzing regional soil nutrient availability for agricultural studies based on total and available nitrogen, phosphorus, and potassium
• Modeling soil hydrology and carbon cycles using data on soil texture (sand, silt, clay) and organic matter fraction
• Assessing soil acidity and cation exchange dynamics for environmental studies based on pH and exchangeable ion data

Strengths

• Includes over 20 distinct soil physical and chemical attributes, providing a multi-faceted view of soil properties.
• Captures vertical soil variation with data for eight specific depth layers, down to 2.296 meters.
• Has a defined spatial resolution of 30 arc-seconds (approximately 1 km at the equator).
• Includes quality control (QC) information for the provided data.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.
• Row count is unknown, which may limit suitability assessment for large-scale ML projects.

Provenance

Source

SCIOPS

Collection Method

Developed for use in land surface modeling, likely from aggregated surveys or remote sensing.

Time Range

Temporal coverage, or null.

Freshness

Update frequency or recency, or null.

Geography

China