Fig. 4. Soil organic C as a function of fine-root ingrowth and non-woody litterfall in experimental plantations at La Selva Biological Station, Costa Rica. Symbols: • = Hyeronima alchorneoides, 
= Pentaclethra macroloba, 
= Pinus patula, 
= Virola koschnyi, and 
= Vochysia guatemalensis.