Open Soil Nutrient Datasets – Ukraine

Siora provides free, satellite-derived soil nutrient maps for Ukraine to support research, precision agriculture, and open environmental data access. These datasets include five key soil parameters — nitrogen (N), phosphorus (P), potassium (K), organic carbon (OC), and pH — for the years 2000, 2010, and 2020.

The maps are generated using multispectral satellite imagery combined with topographic, climate, geological, and weather datasets to estimate nutrient concentrations without physical soil sampling. Each nutrient map is available in GeoTIFF format for GIS analysis, along with a PNG heatmap preview and thumbnail for quick viewing.

The datasets are released under the Creative Commons Attribution 4.0 (CC-BY 4.0) license, allowing free use, redistribution, and adaptation with proper attribution.

Method Summary

These datasets are produced using Siora’s calibrated spectral analysis workflow. Multispectral satellite images are corrected for atmospheric conditions and terrain effects. Auxiliary datasets — including topography, climate normals, geological layers, and soil texture — are used to reduce noise and improve prediction accuracy.

The processed spectral data is then compared against nutrient-specific spectral signatures to estimate concentrations in each pixel.

This method allows repeatable, scalable nutrient mapping without physical soil sampling, enabling temporal comparisons and large-area soil monitoring.

Technical Details

• Coverage: Entire territory of Ukraine
• Years available: 2000, 2010, 2020
• Nutrients: Nitrogen (N), Phosphorus (P), Potassium (K), Organic Carbon (OC), pH
• Resolution: 250 m
• File formats: Single-band GeoTIFF (.tif), PNG heatmap preview, PNG thumbnail
• Units:
• Nitrogen, Phosphorus, Potassium – mg/kg
• Organic Carbon – g/kg
• pH – pH units
• License: CC-BY 4.0

Laboratory Method Equivalents

Our nutrient estimates are comparable to the following standard laboratory soil extraction and measurement methods:

• Nitrogen: ISO 11261 (Kjeldahl digestion)
• Phosphorus: ISO 11263 (Olsen P method)
• Potassium: USDA–NRCS NH₄OAc extraction
• Organic Carbon: ISO 10694 (dry combustion)
• pH: ISO 10390 (pH in water suspension)

Suggested Uses

• Tracking long-term changes in soil fertility
• Benchmarking nutrient distribution for agricultural planning
• Training and validation of machine learning models in remote sensing and agronomy
• Cross-comparison with national soil survey data
• Environmental and sustainability research

Citation & DOI

This dataset is permanently archived on Zenodo. Please cite as:

Siora (2025). Ukraine Soil Nutrient Dataset (2000–2020). Zenodo. https://doi.org/10.5281/zenodo.16889567

Permanent DOI: 10.5281/zenodo.16889567

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