In a handful of fertile soil, there are more individual organisms than the total number of human beings that have ever existed.

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The International Union of Soil Sciences (IUSS) is the global union of soil scientists. The objectives of the IUSS are to promote all branches of soil science, and to support all soil scientists across the world in the pursuit of their activities. This website provides information for IUSS members and those interested in soil science.

Historical gallery

Below are a few thumbnails (click to enlarge) of pictures in the ISSS/IUSS archives.

If you have pictures to be included please send to iuss@umweltbundesamt.at