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January 2026 M T W T F S S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Top Posts
- EDRO Private Channel Starts Broadcast Soon
- EDRO will reactivate blog soon!
- Water Lilies Continue to Grow on Earth's Eco Pond
- FIRE-EARTH DISASTER CALENDAR SYMBOLIC COUNTDOWN: 1…
- Rate of Global Collapse Accelerating
- Global Collapse Update
- Corporate America Won't Survive Beyond 2015
- Nature's Warnings Exponentially Intensifying
- Collapsing Cities - JULY 2010 UPDATE
- The 6th Great Extinction: Sooner Than Expected
Recent Comments
Topsoil
No Good for Farming!
“A [farmer] took up land [in Saskatchewan], dug a cellar and built a frame house on top of it; ploughed up the prairie and grew wheat and oats. After 20 years he decided the country was no good for farming, for eight feet of his soil had gone and he had to climb up into his house.” —Richard St, Barbe Baker, My Life, My Trees [Quoted by John Jeavons in How to Grow More Vegetables]
Land Use And Topsoil

Once a Forest! Photo credit: UNEP
Topsoil
Measuring an average of about 6.6 inches (16.76 centimeters) deep, topsoil is the upper layer of earth’s crust. Topsoil comprises of a mix of humus, mineral and composted materials giving rise to most of the soil’s biological activity and supplying nutrients to plants and therefore to animals. After air and water, topsoil is Earth’s most vital resource.
Topsoil: Wild Facts

Table TS1. Topsoil: Wild Facts
Note: The average bulk density of topsoil is calculated at about 1.4 gcm-3
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