Soil Properties for Organic Carbon Estimation in Andean Agroecosystems
by Loayza, Hildo / International Potato Center Harvested Dataverse·Updated 1mo ago
Available on 1 platform
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Description
In August 2022, soil samples were collected from 189 farmer-managed agricultural fields in the Andean region at depths of 0–24 cm and 15 cm. The dataset includes measured soil physicochemical properties such as pH, electrical conductivity, available phosphorus and potassium, soil organic carbon (SOC), cation exchange capacity, exchangeable cations, particle size distribution, and nitrogen isotopic composition (δ¹⁵N). It was generated by Hildo Loayza of the International Potato Center to support SOC estimation by integrating climatic data, soil properties, and management variables.
Use Cases
Train machine learning models to estimate soil organic carbon (SOC) based on integrated climatic, soil property, and management data.
Analyze relationships between soil physicochemical properties like pH, EC, and nutrient availability in Andean agricultural systems.
Study the impact of crop rotation histories on soil carbon stocks and other soil quality indicators.
Model soil bulk density and particle size distribution for hydrological or erosion studies in mountainous regions.
Strengths
Includes 189 distinct agricultural field samples, providing a substantial observational basis.
Contains a wide range of measured soil variables including SOC, pH, EC, nutrients, CEC, exchangeable cations, and particle size.
Samples were collected using a standardized composite sampling approach with specified depths (0–24 cm, 15 cm) and methods.
Nitrogen isotopic composition (δ¹⁵N) was analyzed at a specialized facility (UC Davis Stable Isotope Facility).
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count is unknown, which may limit suitability assessment.
Data collection is from a single month (August 2022); temporal variability is not captured.
Provenance
Source
International Potato Center Harvested Dataverse
Collection Method
Composite soil sampling (five subsamples per field) from 189 farmer-managed fields, with laboratory analysis of physicochemical properties.
Time Range
August 2022
Freshness
Last updated 2026-05-11 08:10:57; freshness should be verified.
Geography
Andean agroecosystems
License is unknown; terms of use must be verified before application.