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Soil Collections

site excavation showing different soil compositions

Site excavation showing different soil compositions.


Soil covers a major portion of the Earth's surface, and is an important natural resource that either directly or indirectly supports most of the planet's life. Soil is a mixture of mineral and organic materials plus air and water. The contents of soil vary by location and are constantly changing.

The ORNL DAAC Soil Collections archive contains data on the physical and chemical properties of soils, including:

  • soil carbon and nitrogen
  • soil water-holding capacity
  • soil respiration
  • soil texture

Most data sets are globally gridded, while a few are of a regional nature.

Get Soils Data

Find and order data sets:

Related Soil Links

Information related to the Soils Collection Project can be found at the following links: