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1. Mean Annual Precipitation greater than 1000 mm Elevation greater than or equal to 1000 m Mean Annual Precipitation greater than 2000 mm Mean Annual Precipitation Less than or equal to 1000 mm Dry Season more than 5 months IPCC Climate Classification for Tropical Regions (Adapted from 2003 GPG) Montane Moist Start yes yes no no Montane Dry yes Tropical Wet no yes Tropical Dry no Tropical Moist Long Dry Season yes no Tropical Moist Short Dry Season

2. IPCC Soil Classification Based on USDA Taxonomy (IPCC GPG 2003) Histosols Greater than 70% sand and less than 8% clay Aquic Soil Andisols Spodsols Mollisols, Vertisols, high-base status Alfisols, Aridisols, Inceptisols yes Start Organic Soils no yes Sandy Soils no yes Wetland Soils no Volcanic Soils yes no yes Spodic Soils no High Activity Clay Soils Low Activity Clay Soils no yes

3. IPCC Soil Classification Based on World Soils Taxonomy (IPCC GPG 2003) Histosols Organic Soils Start Yes No Greater than 70% sand and less than 8% clay Sandy Soils Yes No Gleysols Yes Wetland Soils No Andosols Volcanic Soils Yes No Podzols Spodsols Spodic Soils Yes No Leptosols, Vertisols, Kastan- ozems, Chernozems, Phaeozems,Luvisols,,Alisols, Albeluvisols, Solonetz, Calcisols,Gypsisols, Umbrisols, Cambi- sols, Regosols Low Activity Clay Soils High Activity Clay Soils No Yes