ukraine_2020_phosphorus.zip

<strong>Title:</strong><br>
Ukraine Soil Nutrient Datasets (2000, 2010, 2020) – Nitrogen, Phosphorus, Potassium, Organic Carbon, pH
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<strong>Description:</strong><br>
This dataset collection provides open-access soil nutrient maps for <strong>Ukraine</strong>, covering the years <strong>2000, 2010, and 2020</strong>. The maps estimate levels of <strong>Nitrogen, Phosphorus, Potassium, Organic Carbon, and pH</strong> across the country at ~250 m spatial resolution.
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Values are derived using multispectral satellite data and physics-based spectral models. The approach is analogous to laboratory spectroscopy, but applied remotely at landscape scale, enabling consistent monitoring of soil fertility across large agricultural regions. Each year and nutrient combination is provided as a single-band GeoTIFF, accompanied by visualization heatmaps and metadata files.
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<strong>Primary DOI (Zenodo citation):</strong><br>
10.5281/zenodo.16889567<br>
(Please cite this Zenodo DOI when using the dataset.)
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<strong>Key features:</strong>

Region: Ukraine
Parameters: Nitrogen (N), Phosphorus (P), Potassium (K), Organic Carbon (OC), pH
Temporal coverage: 2000, 2010, 2020
Spatial resolution: ~250 m
Format: GeoTIFF (.tif), PNG heatmaps, thumbnails, README, license
Coordinate system: WGS 84 (EPSG:4326)
License: Creative Commons Attribution 4.0 (CC-BY 4.0)

<strong>Comparable laboratory references:</strong>

Nitrogen – ISO 11261:1995 (Modified Kjeldahl)
Phosphorus – ISO 11263:1994 (Spectrometric determination)
Potassium – USDA–NRCS (Atomic absorption, NH₄OAc extraction)
Organic Carbon – ISO 10694:1995 (Dry combustion)
pH – ISO 10390:2005 (Glass electrode method)

<strong>Suggested applications:</strong>

Monitoring soil health and nutrient change over time
Supporting precision agriculture and crop yield optimization
Developing soil fertility and climate impact models
Training and validating remote sensing and ML models

<strong>Attribution:</strong><br>
Dataset produced by Siora, a provider of satellite-based soil analysis. Please cite as:<br>
<em>“Siora (2025). Ukraine Soil Nutrient Dataset (2000–2020). Zenodo DOI: 10.5281/zenodo.16889567.”</em>

<strong>标题：</strong><br>乌克兰土壤养分数据集（2000、2010、2020年）——氮、磷、钾、有机碳、pH值<br><br><strong>数据集描述：</strong><br>本数据集集合面向乌克兰提供开放获取的土壤养分分布图，涵盖2000年、2010年及2020年三个年份。该类地图以约250米的空间分辨率，估算了乌克兰全境的氮、磷、钾、有机碳及pH值含量。<br>数据集数值通过多光谱卫星数据与基于物理原理的光谱模型推导得出。该方法与实验室光谱分析类似，但以遥感手段应用于景观尺度，可实现大型农业区域土壤肥力的持续监测。针对每个年份与养分指标的组合，均以单波段GeoTIFF格式提供，并附带可视化热力图与元数据文件。<br><br><strong>主要DOI（Zenodo引用）：</strong><br>10.5281/zenodo.16889567<br>（使用本数据集时，请引用该Zenodo DOI。）<br><br><strong>核心特征：</strong><br>- 覆盖区域：乌克兰<br>- 监测参数：氮（N）、磷（P）、钾（K）、有机碳（OC）、pH值<br>- 时间覆盖范围：2000年、2010年、2020年<br>- 空间分辨率：约250米<br>- 数据格式：GeoTIFF（.tif）、PNG热力图、缩略图、说明文档（README）、授权文件<br>- 坐标系：WGS 84（EPSG:4326）<br>- 授权协议：知识共享署名4.0（CC-BY 4.0）<br><br><strong>可比实验室参照标准：</strong><br>- 氮：ISO 11261:1995（改良凯氏定氮法）<br>- 磷：ISO 11263:1994（分光光度测定法）<br>- 钾：美国农业部自然资源保护局（USDA-NRCS，原子吸收法，NH₄OAc提取法）<br>- 有机碳：ISO 10694:1995（干式燃烧法）<br>- pH值：ISO 10390:2005（玻璃电极法）<br><br><strong>建议应用场景：</strong><br>- 长期监测土壤健康与养分变化趋势<br>- 支撑精准农业与作物产量优化工作<br>- 构建土壤肥力与气候影响相关模型<br>- 训练与验证遥感及机器学习（ML）模型<br><br><strong>署名说明：</strong><br>本数据集由卫星土壤分析服务提供商Siora制作。引用格式为：<br><em>"Siora (2025). Ukraine Soil Nutrient Dataset (2000–2020). Zenodo DOI: 10.5281/zenodo.16889567."</em>