Fig. 2From: Environment and tree size controlling stem sap flux in a perhumid tropical forest of Central Sulawesi, IndonesiaRelationship between DBH and sapwood area (SA) across 57 trees of the perhumid forest of Pono Valley, Central Sulawesi, Indonesia. The trees belong to 10 species plus at least three morpho-species from the Myrtaceae family. The solid line is the line of the regression described by a polynomial function of the form: log (SA) = b 0 + b 1DBHBack to article page