A STATISTICAL TEST OF EROSION PIN MEASUREMENTS

摘要

Soil erosion modelling at the watershed scale has gained increasing importance in the last few years. To validate soil erosion models, installing erosion pins in the watershed is the most direct method to determine erosion rates. In this study, we examined the measurements of 550 erosion pins installed at 55 locations throughout the five sub-watersheds of the Shihmen reservoir watershed in northern Taiwan. Then, we used the Mann-Whitney U-test to determine if the erosion pin measurements from different sub-watersheds are statistically different.