Geography 2152F/G Lecture Notes - Lecture 7: Brown Earth, Pioneer Species, Stratovolcano
14 Mar 2019
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Life survived the eruption, in the blow-down zone downhill from the crater, close to the ground. In first 3 months there was nothing but dead uprooted trees. Signs of freshly disturbed earth were found at many locations, brown earth over the grey volcanic ash. Beneath the surface there emerging is a tiny northern. Tiny animal that lives completely underground that was protected under the mantle of soil. More gophers were found, life was returning after 3 months of eruption: describe the relationship between bacteria and the prairie lupine plant. Amidst the acres of barren rock there were plants. The plant was a prairie lupine plant that is usually at the high areas and it was flourishing. 4 miles from the crater, first sign of life where everything was extinguished. The roots fertilize itself, provides nitrogen to the plant and the plant provides bacterium with simple sugars where it comes from photosynthesis.
