Climate

• Annual precipitation (mm)
• Mean May-September precipitation (mm)
• Mean difference between July and January Temperature (°C)
• Mean annual temperature (°C)
• Mean January temperature (°C)
• Mean July temperature (°C)
• Mean May-September temperature (°C)

Elevation

• Elevation coefficient of variation
• Maximum elevation (m)
• Average elevation (m)
• Minimum elevation (m)
• Range of elevation (m)

Land-Cover

• Cropland (%)
• Forest land (%)
• Fragmentation Index (Riitters et al. 2002)
• Nonforest land (%)
• Water (%)

Soil Type

• Alfisol (%)
• Aridisol (%)
• Entisol (%)
• Histosol (%)
• Inceptisol (%)
• Mollisol (%)
• Spodosol (%)
• Ultisol (%)
• Vertisol (%)

Soil Characteristics

• Total available water capacity (cm, to 152 cm)
• Soil bulk density (g/cm3)
• Percent clay (< 0.002 mm size)
• Soil erodibility factor, rock fragment free
• Percent soil passing sieve No. 10 (coarse)
• Percent soil passing sieve No. 200 (fine)
• Organic matter content (% by weight)
• Potential soil productivity (m3 of timber/ha)
• Soil permeability rate (cm/hr)
• Soil pH
• Depth to bedrock (cm)
• Soil slope (%) of a soil component