*** Andic Soil Properties Data ***

Pedon ID: 87IA1770017

( Van Buren, Iowa )

Print Date: Mar 2 2025 9:02AM

Sampled as on Sep 1, 1987:	Kniffin ; Fine, montmorillonitic, mesic Udollic Ochraqualf
Revised to correlated:	Clarinda ; Fine, smectitic, mesic Udollic Ochraqualfs

				United States Department of Agriculture
SSL	-	Project	RP87IA135   EROSION VAN BUREN COUNTY	Natural Resources Conservation Service
	-	Site ID	S1987IA1770017   Lat: 40° 4242.00" north  Long: 91° 5652.00" west  MLRA: 109	National Soil Survey Center
	-	Pedon No.	87P0390	Soil Survey Laboratory
	-	General Methods 1B1A, 2A1, 2B		Lincoln, Nebraska 68508-3866

---

Andic Soil Properties Tier 1				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-	-18-	-19-	-20-	-21-
				Total	Fine	CaCO3	CoSi to	Est	.1-75	Vol >2mm				Bulk	COLE								Al+½Fe	Al+½Fe
				Clay	Clay	Clay	VCoS	Clay	Fraction	% of	(- - - - 1500 kPa - - - -)			Density	Whole	(- - - - - - - - - - Glass Content - - - - - - - - - -)							*15.625	*60.0
	Depth			<.002	<.0002	<.002	.02 - 2	Content		Whole Soil	air-dry	field moist	/Clay	33 kPa	Soil	csi	vfs	fs	ms	cs	vcs	Wt Avg	+Glass	+Glass
Layer	(cm)	Horz	Prep	(- - - - - - - - - - - % of <2 mm - - - - - - - - -)					% of <75 mm	(- - - - - - - - % - - - - - - -)				g cm-3	cm cm-1	(- - - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - - - - -)
				3A1a1a							3C2a1a		8D1
87P02005	0-23	Ap	S	23.5					4	--	10.8		0.46
87P02006	23-36	E	S	30.1					3	--	13.8		0.46
87P02007	36-53	Bt1	S	45.9					2	--	20.5		0.45
87P02008	53-69	Bt2	S	43.8					1	--	18.8		0.43
87P02009	69-86	Bt3	S	39.8					2	--	17.6		0.44
87P02010	86-104	Bt4	S	42.1					7	--	17.1		0.41

---

Andic Soil Properties Tier 2

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

-17-

-18-

-19-

CO3

Al+

8*Si

Optical

KCl

NH4OAC

Sum

(- Base Sat -)

pH

pH

Org

Tot

as

NZ

½Fe

8*Si

2*Fe

+2*Fe

Density

Extr

Sum

Bases+

NH4OAC

Sum of

Melanic

(- Atterberg -)

Depth

H2O

NaF

C

C

CaCO3

P Ret

Oxal

Oxal

Oxal

Oxal

Oxal

Al

Bases

Extr Al

pH 7.0

Cations

Index

LL

PI

Layer

(cm)

Horz

Prep

(- - - - - - - - - - - - - - - - - - - - - - - % wt - - - - - - - - - - - - - - - - - -)

cmol(+) kg-1

(- meq 100g-1 -)

(- - - - % - - - - -)

( % <0.4mm )

4C1a2a

6A1c

87P02005

0-23

Ap

S

6.2

1.68

87P02006

23-36

E

S

5.5

1.03

87P02007

36-53

Bt1

S

5.6

0.74

87P02008

53-69

Bt2

S

5.9

0.41

87P02009

69-86

Bt3

S

6.3

0.33

87P02010

86-104

Bt4

S

6.8

0.18