*** Taxonomy Characterization Data ***

Pedon ID: MLRA78-Rotan-TX009-008

( Archer, Texas )

Print Date: Nov 21 2024 12:28PM

Sampled as on May 30, 1981:	Rotan ; Fine, mixed, thermic Pachic Paleustoll
Revised to correlated on Dec 10, 2007:	Rotan ; Fine, montmorillonitic Pachic Paleustolls

				United States Department of Agriculture
SSL	-	Project	CP82TX055   REDBED STUDY	Natural Resources Conservation Service
	-	Site ID	S81-TX009-008   Lat: 33° 42' 0.00" north  Long: 98° 50' 0.01" west  MLRA: 78C	National Soil Survey Center
	-	Pedon No.	82P0158	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	3A1a1a	8D1			4A1d			7B1a2
82P00821	0-12	A	S	19.8	16.0		0.48		6	1.46	0.022	tr
82P00822	12-30	E	S	29.0	20.2		0.44		4	1.41	0.036	--	91
82P00823	30-45	Bt1	S	36.6	28.5		0.43		4	1.51	0.060	--
82P00824	45-67	Bt2	S	35.8	25.3		0.45		4	1.54	0.061	--	89
82P00825	67-85	Bt3	S	36.2	19.8	0.6	0.47		5			tr
82P00826	85-107	Btk	S	36.2	15.2	1.2	0.46		6			1
82P00827	107-127	Btkc1	S	35.4	15.2	2.9	0.44		6			1
82P00828	127-180	Btkc2	S	36.1	12.2	5.0	0.40		4			tr
82P00829	180-232	Btkc3	S	32.9	10.4	1.4	0.40		10	1.66	0.046	3	86

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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
82P00821	0-12	A	S	6.3		1.59					100*	79			0.76			1.27	--
82P00822	12-30	E	S	6.9		1.05					100*	87			0.74				1
82P00823	30-45	Bt1	S	7.3		0.79				--	100*	90			0.76				1
82P00824	45-67	Bt2	S	7.7		0.64				tr	100*	91			0.78				2
82P00825	67-85	Bt3	S	8.3		0.45				2	100*	100			0.75			0.52	3
82P00826	85-107	Btk	S	8.4		0.37				4	100*	100			0.73			0.96	5
82P00827	107-127	Btkc1	S	8.3		0.25				10	100*	100			0.70			1.59	8
82P00828	127-180	Btkc2	S	8.2		0.14				17	100*	100			0.61			2.34	8
82P00829	180-232	Btkc3	S	8.2		0.11				18	100*	100			0.65			2.55	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	0.77	(NA)
Clay, carbonate free, Weighted Average	36	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	4	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, total, Weighted Average	36	% wt
Weighted averages based on control section: 30-80 cm