TD028

Properties of Attributes in entity 1 table: Forest Floor Core Sample and Dry Weight Data

Name	Keyfield	Nullable	Type	Domain	Scale	NumType	Range	Precision	Units
DBCODE	N	N	char(5)	freetext	nominal
ENTITY	N	N	numeric(1,0)	range	ratio	integer	1.-1.	1.	number
STUDYID	Y	N	char(4)	place	nominal
STAND	Y	N	char(5)	place	nominal
LITNO	Y	Y	char(5)	freetext	nominal
YEAR	Y	N	numeric(4,0)	range	datetime		1900.-2003.		number
TYPE	N	N	char(1)	enum	nominal
NUMCORES	N	N	numeric(2,0)	range	ratio	integer	1.-200.	1.	number
DIAM_CORE	N	N	numeric(4,2)	range	ratio	real	1.00-20.00	0.01	centimeters
SAMP_AREA	N	N	numeric(6,2)	range	ratio	real	0.00-10000.00	0.01	square centimeters
TRAN_PLOT	Y	N	char(4)	freetext	nominal
PLOT_AREA	N	Y	numeric(4,2)	range	ratio	real	0.00-10.00	0.01	hectares
SAMP_NUM	Y	N	char(4)	freetext	nominal
LAYER	Y	N	char(2)	enum	nominal
DEPTH	N	Y	numeric(5,1)	range	ratio	real	0.0-100.0	0.1	centimeters
DRY_WT	N	N	numeric(7,2)	range	ratio	real	0.00-10000.00	0.01	grams
AFDW	N	Y	numeric(7,2)	range	ratio	real	0.00-10000.00	0.01	grams
SAMPLEDATE	N	N	datetime	range	datetime		Jun 20 1995-Aug 5 2003		date as date type