Soil Attributes and Carbon Stock in Amazonian Archaeological Dark Earth Sites

88 georeferenced soil samples from Archaeological Dark Earth sites in Novo Aripuanã, Amazonas, Brazil, were collected to evaluate physical attributes and organic carbon content. The dataset, authored by José Maurício da Cunha, compares soil under pigeon pea cultivation, pasture, and forest cover using univariate, multivariate, and geostatistical techniques. Pigeon pea and pasture soils showed above-average aggregate stability but below-average texture and organic carbon characteristics compared to forest soil.

Use Cases

• Modeling soil carbon stock variability based on geostatistical analysis of sampled points.
• Comparing soil physical properties like aggregate stability across different land cover types mentioned in the description.
• Assessing the impact of pigeon pea cultivation on soil quality relative to pasture and forest in Archaeological Dark Earth environments.

Strengths

• 88 georeferenced sample points per grid provide a structured spatial sampling framework.
• Analysis includes multiple cover types (forest, pasture, pigeon pea) for comparative study.
• Data collection employed both traditional statistical and geostatistical techniques for spatial modeling.

Limitations

• Row count and specific column-level documentation are absent, limiting suitability assessment.
• Last update date is unknown; freshness unverified.
• Data may reflect geographic bias inherent to the single study location in Novo Aripuanã.

Provenance

Source

José Maurício da Cunha

Collection Method

Soil samples with preserved structure and volumetric rings were collected from delimited grids with regular spacing.

Geography

Municipality of Novo Aripuanã, Amazonas, Brazil (Amazonia).