| 31. | Mining has left it badly scarred and rocky without vegetation or topsoil.
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| 32. | "When you remove vegetation, the topsoil washes away.
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| 33. | The topsoil is scraped off to form dykes around the bed perimeter.
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| 34. | Improper and intensive farming led to erosion and the loss of topsoil.
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| 35. | They have brown sandy loam topsoils which are underlain by red clay.
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| 36. | Groundcover provides protection of the topsoil from erosion and drought.
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| 37. | Erosion of topsoil during this flood eliminated many small farms.
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| 38. | Mosses, ferns, grasses, and fungi grow on the topsoil.
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| 39. | During major earthworks, at least of topsoil was excavated.
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| 40. | The terrain is of limestone origin with a topsoil up to deep.
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