Open Datasets
Open Soil Nutrient Datasets — Ukraine
Siora publishes free, satellite-derived soil nutrient maps covering Ukraine, in support of research, precision agriculture, and open environmental data access. The datasets cover five core soil parameters — nitrogen, phosphorus, potassium, organic carbon, and pH — for 2000, 2010, and 2020.
Maps are generated from multispectral satellite imagery combined with topographic, climate, geological, and weather data to estimate nutrient concentrations without physical soil sampling. Each nutrient map ships as a GeoTIFF for GIS work, alongside a PNG heatmap preview and thumbnail, all released under Creative Commons Attribution 4.0 (CC-BY 4.0) — free to use, redistribute, and adapt with attribution.
Method summary
These maps come from Siora's calibrated spectral analysis pipeline: multispectral imagery is corrected for atmospheric and terrain effects, then combined with auxiliary topographic, climate, geological, and soil-texture data to cut down noise and sharpen predictions. The cleaned spectral signal is compared against nutrient-specific spectral signatures to estimate concentration pixel by pixel — a repeatable, scalable way to map nutrients across a large area without physical sampling, and one that supports comparisons across time.
Technical details
| Field | Value |
|---|---|
| Coverage | Entire territory of Ukraine |
| Years available | 2000, 2010, 2020 |
| Nutrients | Nitrogen (N), Phosphorus (P), Potassium (K), Organic Carbon (OC), pH |
| Resolution | 250 metres |
| File formats | Single-band GeoTIFF (.tif), PNG heatmap preview, PNG thumbnail |
| Units | N/P/K in mg/kg, OC in g/kg, pH in pH units |
| License | CC-BY 4.0 |
Laboratory method equivalents
Estimates are calibrated to be comparable with these standard laboratory extraction and measurement methods:
| Nutrient | Standard |
|---|---|
| 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
Dataset downloads
| Year | Nutrient | Download |
|---|---|---|
| 2000 | Nitrogen (mg/kg) | Download |
| 2000 | Phosphorus (mg/kg) | Download |
| 2000 | Potassium (mg/kg) | Download |
| 2000 | Organic Carbon (g/kg) | Download |
| 2000 | pH (pH units) | Download |
| 2010 | Nitrogen (mg/kg) | Download |
| 2010 | Phosphorus (mg/kg) | Download |
| 2010 | Potassium (mg/kg) | Download |
| 2010 | Organic Carbon (g/kg) | Download |
| 2010 | pH (pH units) | Download |
| 2020 | Nitrogen (mg/kg) | Download |
| 2020 | Phosphorus (mg/kg) | Download |
| 2020 | Potassium (mg/kg) | Download |
| 2020 | Organic Carbon (g/kg) | Download |
| 2020 | pH (pH units) | Download |