Throughfall, stemflow and interception losses of rainfall from coconut (Cocos nucifera Linn.)

The throughfall, stemfiow and interception losses of rainfall from coconut (Cocos nucifera Linn.) were quantified based on 108 days of storm records in a high rainfall region at Pelicode. The coconut has a storage capacity of 0.4 mm and the observed interception losses from it were up to 10 mm per storm. The relationship, throughfall (mm) = -0.441+ 0.875 X Rainfall (mm) (r= 0.943, at 0.01 level) has accounted for 89 per cent in the through fall from storm rainfall. The stem flow was very low and its relationship with storm rainfall was; stemflow X 10-3mm =-22.154+23.629 X Log Rainfall (mm) (r= 0.683, at 0.05 level). The influence of wind direction on the lateral distribution of  throughfall below coconut canopy was also quantified.