*** Taxonomy Characterization Data ***

Pedon ID: S1974AZ019001

( Pima, Arizona )

Print Date: Nov 25 2024 10:17AM

Sampled as on Dec 14, 1974:	Palos Verdes
Revised to correlated on Jul 1, 1996:	(unnamed) ; Loamy, mixed, active, thermic, shallow Abruptic Argidurid

				United States Department of Agriculture
SSL	-	Project	NL74AZ019   PIMA CO.,E. PART	Natural Resources Conservation Service
	-	Site ID	S1974AZ019001   Lat: 32° 20' 59.99" north  Long: 110° 59' 48.99" west	National Soil Survey Center
	-	Pedon No.	74C0172	Soil Survey Laboratory
	-	General Methods 1B1A, 2A1, 2B		Lincoln, Nebraska 68508-3866

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Taxonomy Tier 1				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-
					Fine	CaCO3	1500		.1-75	Bulk	Cole	Vol	Resist
				Clay	Clay	Clay	kPa	Clay	mm	Den	Whole	% of	Min
	Depth			<.002	<.0002	<.002	/Clay	Est	Frac	33 kPa	Soil	Whole	%
Layer	(cm)	Horz	Prep	(---------% of <2 mm-------)				(-------- % --------)		g cm-3	cm cm-1
				3A1a1a		3A1a1a	8D1			4A1d
74C01013	0-3	A	S	6.8			0.46		59	1.69	0.004	9
74C01014	3-8	B	S	12.5			0.30		58			11
74C01015	8-20	Bt1	S	21.2			0.33		64	1.61	0.011	21
74C01016	20-38	Bt2	S	37.9		2.0	0.32		62	1.38	0.033	20
74C01017	38-48	Bkq1	S	23.3		7.0	0.33		65	1.53	0.010	25
74C01018	48-97	Bkq2	S	14.0		6.0	0.33		70	1.44	--	17
74C01019	97-163	Bkq3	S	9.9		2.0	0.37		81	1.67	--	22

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Taxonomy Tier 2				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-
				pH	pH	Org	Tot	Al+½ Fe		CO3 as	(--- Base Sat ---)		NZ	ECEC	CEC7	ECEC	Al
	Depth			H2O	NaF	C	C	Oxal	ODOE	CaCO3	NH4	Bases	P Ret	cmol(+)	/Clay	/Clay	Sat	E C	ESP
Layer	(cm)	Horz	Prep			(------------------------------------------ % --------------------------------------------)								kg -1			%	dS m-1	%
				4C1a2a		6A1c				6E1g	5C1	5C3			8D1			8A3a	5D2
74C01013	0-3	A	S	7.9		0.39					100*	100			0.99				--
74C01014	3-8	B	S	8.0		0.31					100*	100			0.66				--
74C01015	8-20	Bt1	S	7.5		0.22					100*	100			0.55				1
74C01016	20-38	Bt2	S	7.5		0.25				1	100*	100			0.55			0.66	tr
74C01017	38-48	Bkq1	S	8.3						28	100*	100			0.44				1
74C01018	48-97	Bkq2	S	8.5						29	100*	100			0.46				3
74C01019	97-163	Bkq3	S	8.5						10	100*	100			0.66				8

^*Extractable Ca may contain Ca from calcium carbonate or gypsum.

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Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.59	(NA)
Clay, carbonate free, Weighted Average	25	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	63	% wt
Volume, >2mm, Weighted Average	21	% vol
Clay, total, Weighted Average	27	% wt
Weighted averages based on control section: 3-48 cm