*** Taxonomy Characterization Data ***

Pedon ID: 91OK083008

( Logan, Oklahoma )

Print Date: Apr 24 2025 10:51PM

Sampled as on May 30, 1991:	Masham ; Clayey, mixed, shallow Udic Ustochrepts
Revised to :

				United States Department of Agriculture
SSL	-	Project	CP91OK203   LOGAN-OFUSKEE COS	Natural Resources Conservation Service
	-	Site ID	S1991OK083008   Lat: 35° 44' 18.99" north  Long: 97° 16' 40.00" west  MLRA: 84A	National Soil Survey Center
	-	Pedon No.	91P0879	Soil Survey Laboratory
	-	General Methods 1B1A, 2A1, 2B		Lincoln, Nebraska 68508-3866

---

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
91P05349	0-9	A	S	37.0			0.37		17	1.34	0.036	6
91P05350	9-20	Bw	S	34.8			0.32		6	1.60	0.038	1
91P05351	20-33	BC	S	35.9		0.3	0.33		7	1.71	0.036
91P05352	33-64	Cr1	S				0.34			1.85	0.030
91P05352	33-64	Cr1	GP	33.8
91P05353	64-100	Cr2	S				0.35			1.93	0.029
91P05353	64-100	Cr2	GP	35.8
91P05354	100-120	2Cr	S				0.33			1.90	0.037
91P05354	100-120	2Cr	GP	32.2

---

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
91P05349	0-9	A	S	7.2		2.06				6	100*	95			0.51			0.80	1
91P05350	9-20	Bw	S	8.0		0.47				3	100*	100			0.41			0.48	--
91P05351	20-33	BC	S	8.2		0.18				3	100*	100			0.38				--
91P05352	33-64	Cr1	S												0.36
91P05352	33-64	Cr1	GP	8.3		0.17				2									--
91P05353	64-100	Cr2	S												0.34
91P05353	64-100	Cr2	GP	8.5		0.07				5									--
91P05354	100-120	2Cr	S												0.33
91P05354	100-120	2Cr	GP	8.4		0.01													1

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

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.43	(NA)
Clay, carbonate free, Weighted Average	36	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	9	% wt
Volume, >2mm, Weighted Average	2	% vol
Clay, total, Weighted Average	36	% wt
LE, Whole Soil, Summed to 1m	3	cm/m
Weighted averages based on control section: 0-33 cm