Attribute_Name	ORDER	Storage_Type	Measurement_Scale	Number_Type	UNITS	DESCRIPTION	CODES
YEAR	1	a	date-time	integer	nominalYear	data collected 1997 through 2001	1997-2001
DOY	2	a	ratio	integer	nominalDay	day of year	n/a
SPP	3	a	nominal	n/a	dimensionless	three major grass species	BOGR=Bouteloua gracilis; PASM=Pascopyrum smithii; STCO=Stipa comata
TMT	4	a	nominal	n/a	dimensionless	See reference: plots were covered with open-top-chambers and injected with either elevated or ambient CO2 air, for five years	C=unchambered controls; A=ambient CO2 OTC; H=elevated CO2 OTC
REP	5	a	nominal	n/a	dimensionless	field block	1-3
XWP_Mpa	6	f	ratio	real	number	xylem leaf water potential	n/a
