Soil scientists sampling Tomlin soil (Iredell County, NC)

A soil scientist is a person who is qualified to evaluate and interpret soils and soil-related data for the purpose of understanding soil resources as they contribute to not only agricultural production, but as they affect environmental quality and as they are managed for protection of human health and the environment. The university degree should be in Soil Science, or closely related field (i.e., natural resources, environmental science, earth science, etc.) and include sufficient soils-related course work so the Soil Scientist has a measurable level of understanding of the soil environment, including soil morphology and soil forming factors, soil chemistry, soil physics, and soil biology, and the dynamic interaction of these areas.

 

TOMLIN SERIES

Depth class: Very deep

Agricultural drainage class: Well drained

Saturated hydraulic conductivity class: Moderately high

Landform: Piedmont uplands

Landform position: Broad ridges and side slopes

Parent material: Residuum weathered from diorite, gabbro, diabase, and/or gneiss

Slope: 2 to 25 percent

Taxonomic classification: Fine, kaolinitic, mesic Rhodic Kanhapludults

 

RANGE IN CHARACTERISTICS:

Depth to top of argillic or kandic horizon: 2 to 20 inches

Depth to base of argillic or kandic horizon: More than 25 inches

Depth to bedrock: Greater than 80 inches

Depth to seasonal high water table: Greater than 72 inches

Rock Fragment Content: 0 to 35 percent in the A and E horizons and 0 to 15 percent in the B and C horizons; mostly gravel and cobbles

Soil Reaction: Very strongly acid to moderately acid throughout, unless limed.

Mica content: 0 to 20 percent, by volume mica flakes in the A, B, and 0 to 50 percent by volume in the BC and C horizon.

 

For more information about Describing and Sampling soils, visit;

www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052523...

 

For more information about Soil Taxonomy, visit;

sites.google.com/site/dinpuithai/Home

 

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