The goal of the study was to measure how rainfall is divided into throughfall, stemflow, and canopy interception in a Eucalyptus dunnii forest in Brazil. The researchers set up rain collectors and systems to collect water from the trees. They found that 99% of the rainfall went through the trees, 90% ran down the tree trunks, and 52% was caught by the canopy. As the amount of rain increased, the variation in water distribution decreased. On average, the trees caught 8.9% of the rain that fell.