*** Taxonomy Characterization Data ***

Pedon ID: S1977TX047002

( Brooks, Texas )

Print Date: Dec 11 2024 4:15PM

Sampled as on Dec 6, 1977:	Falfurrias ; Mixed, hyperthermic Typic Ustipsamment
Revised to correlated:	FALFURRIAS ; Mixed, hyperthermic Typic Ustipsamments

				United States Department of Agriculture
SSL	-	Project	CP78TX089   SOUTH TEXAS SAND SHEET	Natural Resources Conservation Service
	-	Site ID	S1977TX047002   Lat: 27° 11' 10.00" north  Long: 98° 18' 12.01" west  MLRA: 83C	National Soil Survey Center
	-	Pedon No.	78P0206	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			7B1a2
78P01034	0-8	A1	S	2.0			0.55		82			--	92
78P01035	8-23	A2	S	3.6			0.22		82	1.54	0.002	--
78P01036	23-38	A3	S	3.6			0.25		83	1.47	0.007	--
78P01037	38-63	A5	S	4.8			0.17		82	1.52	--	--	85
78P01038	63-109		S	2.8			0.25		84	1.55	0.006	--
78P01039	109-153	E1	S	2.6			0.15		83	1.50	0.004	--	92
78P01040	153-216	E2	S	2.4			0.17		83	1.53	--	--
78P01041	216-231	Bt1	S	13.8	10.9		0.40		67	1.68	0.016	--
78P01042	231-256	Bt2	S	30.0	26.3		0.41		55			--	93
78P01043	261-315	Bt3	S	32.2	28.9		0.50		54			--
78P01044	322-330	Bt4	S	28.4	25.1		0.50		54			--
78P01045	330-361	Bt5	S	27.1	23.0		0.53		53			--
78P01046	361-378	Bt6	S	22.9	20.9		0.52		57			--
78P01047	378-391	Bt7	S	20.9	18.4		0.50		58			--
78P01048	391-421	Bt8	S	18.0	16.3		0.51		59			--

¹ Analyzed size fraction = 0.1-0.25 mm

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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	%
				8C1a		6A1c					5C1	5C3			8D1			8A1a	5D2
78P01034	0-8	A1	S	6.3		0.32					100*	100			0.90			0.06	6
78P01035	8-23	A2	S	6.2		0.16					80	100			0.42			0.04	7
78P01036	23-38	A3	S	6.1		0.09					85	100			0.36			0.02	8
78P01037	38-63	A5	S	6.1		0.07					85	100			0.27			0.02	8
78P01038	63-109		S	6.0		0.04					82	100			0.39			0.01	9
78P01039	109-153	E1	S	5.8		0.02					67	100			0.35			0.01	11
78P01040	153-216	E2	S	5.5		0.02					71	100			0.29			0.01	--
78P01041	216-231	Bt1	S	5.5		0.07					73	66			0.45			0.02	3
78P01042	231-256	Bt2	S	5.9		0.07					81	77			0.55			0.03	2
78P01043	261-315	Bt3	S	5.7		0.04					85	83			0.58			0.04	3
78P01044	322-330	Bt4	S	6.2		0.04					88	87			0.61			0.06	3
78P01045	330-361	Bt5	S	6.2		0.03					87	91			0.63			0.09	3
78P01046	361-378	Bt6	S	6.0		0.03					89	90			0.63			0.09	3
78P01047	378-391	Bt7	S	5.9		0.03					90	91			0.62			0.16	3
78P01048	391-421	Bt8	S	5.9		0.03					90	92			0.66			0.15	3

^*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	0.35	(NA)
Clay, carbonate free, Weighted Average	4	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	83	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, total, Weighted Average	4	% wt
Weighted averages based on control section: 25-100 cm