An important component in the hydrological cycle is vegetation, especially its role in intercept rainfall. This study aims to determine the effect of rainfall on throughfall, stem flow and interception to stand Aubreville, Leeuwenberg and Stone architecture models. Research conducted in the forest garden land Gumbasa Sub Watershed, Palu Watershed. The administration of the region are in Gumbasa Sub Sigi Regency in Central Sulawesi province, which is included in the Lore Lindu National Park area. Determination of the sample conducted representative tree, using survey methods in a way lane along the rivers in Gumbasa Sub watershed. Data were analyzed using statistical analysis through a simple linear regression equation. The results showed that the relationship between rainfall by throughfall, stem flow, and canopy interception is linear and highly visible at the level of 99%. The architecture model of the nicest trees to increase the amount of water to the surface of the ground is a Leeuwenberg model of the species of Calophyllum soulattri (Clusiaceae).

Keywords: Throughfall, stem flow, canopy interception, leeuwenberg