Soil and Plant Spectral Library with Georeferenced Samples
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Description
Over 30,000 spectral measurements for soil, plant, sediment, and material samples across a wavelength range of 350 to 2500 nm. The library includes more than 12,000 soil samples and 500 plant samples, with matching physical and chemical property data for many. It was compiled by the World Agroforestry Centre (ICRAF) and features georeferenced samples from over 3000 sites in the Kenya Lake Victoria Basin.
Use Cases
Predict soil chemical properties like organic carbon or pH from spectral reflectance values between 350-2500 nm.
Develop classification models to identify material types (soil, plant, sediment, rock, manmade) based on their spectral signatures.
Create geospatial models of soil properties using the georeferenced sample locations from over 3000 sites in Kenya.
Calibrate remote sensing instruments by comparing satellite or airborne sensor data to the ground-truthed spectral library measurements.
Analyze spectral features to distinguish between different organic resource samples from the dedicated library subset.
Strengths
Over 30,000 individual spectral measurements providing a substantial reference base.
Samples are georeferenced to survey-grade accuracy for over 3000 sites, enabling spatial analysis.
Covers a broad spectral range (350-2500 nm) relevant for many remote sensing applications.
Includes matching attribute data on physical and chemical properties for a large number of soil and plant samples.
Limitations
The total number of rows and specific column schema are not documented in the provided description.
Specialized attribute data for specific sample sets are noted as not yet documented in the main database.
Geographic coverage is heavily focused on the Kenya Lake Victoria Basin, which may limit global model generalizability.
Provenance
Source
World Agroforestry Centre (ICRAF)
Collection Method
Spectral measurement of collected soil, plant, sediment, rock, and material samples.
Geography
Primarily the Kenya Lake Victoria Basin, with samples from over 3000 sites.
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