1. Soil erosion
... , and energy through an ecosystem. The ongoing degradation of the earth's soils by human activity, particularly agriculture, threatens human potential to feed a growing population. The annual global erosion amounts to about 36 billion tons, of which 10 billion are due to natural causes and 26 billion are the result of ... It is a ratio of the intrinsic potential for soil displacement from erosion to the "T" limit (Baffaut et al 1998). From 1991 to 1992 in Central Kenya's highlands, these formulas were used to monitor runoff, soil loss, and enrichments of eroded soil material. Annual rain...
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- Grade Level: High School