TD018

Properties of Attributes in entity 1 table: Acetylene Reduction and Respiration: Raw Data

Name	Keyfield	Nullable	Type	Domain	Scale	NumType	Range	Precision	Units
DBCODE	N	N	char(5)	enum	nominal
ENTITY	N	N	numeric(2,0)	range	interval	natural	1.-1.	1.	number
STUDYID	Y	N	char(4)	place	nominal
YEAR	Y	N	numeric(4,0)	range	datetime		1985.-2006.	1.	year (yyyy)
TIME	Y	N	numeric(4,0)	range	ratio	natural	4.-248.	1.	number
SITE	Y	Y	char(1)	enum	nominal
SPECIES	Y	N	char(4)	taxa	nominal
TISSUE	Y	N	char(2)	enum	nominal
POSITION	Y	N	char(1)	enum	nominal
NUMBER	Y	N	numeric(4,0)	range	interval	natural	1.-741.	1.	number
REP	Y	N	char(1)	freetext	nominal
ETHYLENE	N	Y	numeric(6,3)	range	ratio	real	-3.880-75.925	0.001	parts per million
ETIME	N	Y	numeric(3,0)	range	ratio	natural	0.-29.	1.	number of hours
PRODE	N	Y	numeric(7,3)	range	ratio	real	-3.709-129.790	0.001	nanomoles per gram per day
CO2	N	Y	numeric(6,3)	range	ratio	real	-0.360-3.300	0.001	percent
TIMECO2	N	Y	numeric(5,2)	range	ratio	real	-0.01-4.75	0.01	number of hours
RESPIR	N	Y	numeric(7,4)	range	ratio	real	-2.4400-9.7300	0.0001	micromoles per gram per hour
DRYWT	N	N	numeric(4,2)	range	ratio	real	0.13-3.83	0.01	grams
WETWT	N	Y	numeric(4,2)	range	ratio	real	0.95-3.76	0.01	grams
MC	N	Y	numeric(6,1)	range	ratio	real	6.5-1488.0	0.1	percent
OXYGEN	N	N	numeric(2,0)	range	ratio	whole	0.-2.	1.	percent
SAMPLEDATE	N	N	date	range	datetime		Mar 15 1987-May 15 2006		date as date type