Theory 106/Soil Science
Erosion Is a Cover Ratio
The claim
Erosion is set by the ratio of rainfall erosivity to ground cover rather than by rainfall amount.
01The mechanism
Cover intercepts raindrop energy and slows flow; the same rainfall erodes in proportion to how much soil is exposed.
02Predictions
- P1Erosion should track the ratio.
- P2Rainfall alone should mispredict.
03Refutation
Erosion tracking rainfall would remove the cover term.