The ORNL DAAC compiles, archives, and distributes data on the physical and chemical properties of soils, including soil carbon and nitrogen, soil water-holding capacity, soil respiration, and soil texture. The data are gridded at spatial scales ranging from regional to global.

Learn more about our Soil Collections by accessing the following on-line resources:

• Soils Data Set Documents

Find and order data sets:

• See list of data sets
• Browse by attributes

Obtain project CD-ROMs:

• Order CD-ROMs on-line
• Make your own CD-ROMs

Download data sets directly:

• FTP site

Search for related data:

• Mercury search system

The ORNL DAAC offers soil properties and profile data, data on soil types and characteristics, data on annual soil respiration and soil water capacity, data on organic soil carbon and nitrogen, and a database of northern and mid-latitude soils.