*** Taxonomy Characterization Data ***

Pedon ID: 91MT049009

( Lewis and Clark, Montana )

Print Date: Dec 4 2024 3:17AM

Sampled as on Apr 24, 1978:	Sieben ; Loamy-skeletal, mixed Aridic Argiborolls
Revised to :

				United States Department of Agriculture
SSL	-	Project	CP92MT126   LEWIS AND CLARK COUNTY	Natural Resources Conservation Service
	-	Site ID	S1991MT049009   Lat: 46° 53' 14.65" north  Long: 112° 6' 23.20" west	National Soil Survey Center
	-	Pedon No.	92P0508	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
92P02954	0-13	A1	S	16.6	6.3		0.49		52			22
92P02955	13-23	A2	S	24.0	12.2		0.38		73			50
92P02956	23-43	Bt1	S	26.3	14.1		0.41		85			68
92P02957	43-53	Bt2	S	22.7	10.3		0.38		82			63
92P02958	53-76	Bk1	S	18.2	2.7		0.41		70			48
92P02959	76-104	Bk2	S	13.8	3.2		0.41		91			72
92P02960	104-152	Bk3	S	10.8	2.6		0.47		93			65

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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			8J	6E1g	5C1	5C3	6S4		8D1			8A3a	5D2
92P02954	0-13	A1	S	5.7		2.13					80	61	17		0.89				--
92P02955	13-23	A2	S	6.4		1.12					95	79	20		0.74				1
92P02956	23-43	Bt1	S	6.8		0.70					100*	91	26		0.81				--
92P02957	43-53	Bt2	S	7.1		0.90		0.22	0.04		100*	85	37		0.78			0.71	1
92P02958	53-76	Bk1	S	8.1		0.32		0.19	0.03	3	100*	97	28		0.72				--
92P02959	76-104	Bk2	S	8.0		0.35		0.13	0.03	2	100*	97	17		0.70			0.56	--
92P02960	104-152	Bk3	S	7.4		0.26		0.12	0.03	1	100*	93	14		0.71				--

^*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	22	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	78	% wt
Volume, >2mm, Weighted Average	58	% vol
Clay, total, Weighted Average	22	% wt
Weighted averages based on control section: 23-73 cm