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Climate


TAVG: 	    Mean annual temperature (°C)

TJAN: 	    Mean January temperature (°C)

TJUL:	    Mean July temperature (°C)

TMAYSEP:	    Mean May-September temperature (°C)

PPT: 	    Annual precipitation (mm)

PPTMAYSEP:	Mean May-September precipitation (mm)

JULJANDIFF:	Mean difference between July and January Temperature (°C)





Elevation


ELV_CV: 	Elevation coefficient of variation

ELV_MAX: 	Maximum elevation (m)

ELV_MEAN:	Average elevation (m)

ELV_MIN:	    Minimum elevation (m)

ELV_RANGE:	Range of elevation (m)





Soil Class


ALFISOL:	    Alfisol (%)

ARIDISOL:	Aridisol (%)

ENTISOL:	    Entisol (%)

HISTOSOL:	Histosol (%)

INCEPTSOL: 	Inceptisol (%)

MOLLISOL: 	Mollisol (%)

SPODOSOL: 	Spodosol (%)

ULTISOL: 	Ultisol (%)

VERTISOL:	Vertisol (%)





Soil Property


BD: 	    Soil bulk density (g/cm3)

CLAY:	Percent clay (< 0.002 mm size)

KFFACT: 	Soil erodibility factor, rock fragment free (susceptibility of soil erosion to water movement)

NO10: 	Percent soil passing sieve No. 10 (coarse)

NO200:	Percent soil passing sieve No. 200 (fine)

OM:	    Organic matter content (% by weight)

ORD: 	Potential soil productivity (m3 of timber/ha)

PERM: 	Soil permeability rate (cm/hr)

PH: 	    Soil pH

ROCKDEP: Depth to bedrock (cm)

SLOPE: 	Soil slope (%) of a soil component

TAWC: 	Total available water capacity (cm, to 152 cm)





Land Use and Fragmentation


FRAG:	    Fragmentation Index (Riitters et al. 2002)

AGRICULT: 	Cropland (%)

FOREST:	    Forest land (%)

NONFOREST:	Nonforest land (%)

WATER:	    Water (%)