*** Primary Characterization Data ***

Pedon ID: 58-CA-12-007x

( Humboldt, California )

Print Date: Apr 21 2026 6:46PM

Sampled as on Feb 9, 2009:	CHAIX ; Loamy-skeletal, mixed, mesic Typic Xerumbrepts
Revised to :

				State of California
SSL	-	Project	UCD201101   UCDavis_2011_project_1	One Shields Ave
	-	Site ID	S1958-CA-12-007x   Lat: 40° 47' 0.71" north  Long: 123° 40' 10.57" west  MLRA: 5	Dept. LAWR: CA Soil Resource Lab
	-	Pedon No.	UCD5812007	University of California at Davis
	-	General Methods 1B1A, 2A1, 2B		Davis, CA 95616

---

Layer	Horizon	Orig Hzn	Depth (cm)	Field Label 1	Field Label 2	Field Label 3	Field Texture	Lab Texture
UCD03392	O1	O1	0-3	UCD3451
UCD03393	A11	A11	3-18	UCD3470			GR-FSL	FSL
UCD03394	A12	A12	18-46	UCD3487			GR-L	L
UCD03395	B2	B2	46-84	UCD3508			GRV-L	L
UCD03396	C	C	84-97	UCD3532			GR-FSL	FSL
UCD03397	Cr	Cr	97-97	UCD5720

---

---

PSDA  &  Rock Fragments				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-	-18-
					(- - - - - Total - - - - - -)			(- - Clay - - -)		(- - - - Silt - - - - -)		(- - - - - - - - - - - - Sand - - - - - - - - - - - -)					( Rock Fragments   (mm) )
				Lab	Clay	Silt	Sand	Fine	CO3	Fine	Coarse	VF	F	M	C	VC	(- - - - - - - - Weight - - - - - - - -)				>2 mm
				Text-	<	.002	.05	<	<	.002	.02	.05	.10	.25	.5	1	2	5	20	.1-	wt %
	Depth			ure	.002	-.05	-2	.0002	.002	-.02	-.05	-.10	-.25	-.50	-1	-2	-5	-20	-75	75	whole
Layer	(cm)	Horz	Prep		(- - - - - - - - - - - - - - - - - - - - - - - - - - % of <2mm Mineral Soil - - - - - - - - - - - - - - - - - - - - - - - - - - -)												(- - - - - - - % of <75mm - - - - - -)				soil
					hyd1			hyd1				hyd1	hyd1	hyd1	hyd1	hyd1
UCD03393	3-18	A11	S	FSL	12.0	33.0	55.0	8.0				12.2	13.2	7.8	13.2	8.6
UCD03394	18-46	A12	S	l	13.0	37.7	49.3	7.0				11.9	11.4	6.5	11.6	7.9
UCD03395	46-84	B2	S	l	18.0	32.1	49.9	13.0				12.3	14.0	7.7	10.1	5.8
UCD03396	84-97	C	S	FSL	10.0	32.5	57.5	5.0				14.5	17.8	9.6	10.8	4.8

*** Primary Characterization Data ***

Pedon ID: 58-CA-12-007x

( Humboldt, California )

Print Date: Apr 21 2026 6:46PM

Sampled As	:	CHAIX		Loamy-skeletal, mixed, mesic Typic Xerumbrepts
University of California at Davis Soil Resource Laboratory			;	Pedon No.  UCD5812007

---

Bulk Density  &  Moisture				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-
				(Bulk Density)		Cole	(- - - - - - - - - - - Water Content - - - - - - - - - - -)					( Air Dry-Oven Dry )		WRD	Aggst
				33	Oven	Whole	6	10	33	1500	1500 kPa	(- - - - Ratio - - - -)		Whole	Stabl	(- - Ratio/Clay - -)
	Depth			kPa	Dry	Soil	kPa	kPa	kPa	kPa	Moist		Corrected	Soil	2-0.5mm	CEC7	1500 kPa
Layer	(cm)	Horz	Prep	(- - - g cm-3 - - -)			(- - - - - - - - - - - - pct of < 2mm - - - - - - - - - - - -)							cm3 cm-3	%
										3C2a1a
UCD03393	3-18	A11	S							27.2							2.27
UCD03394	18-46	A12	S							26.0							2.00
UCD03395	46-84	B2	S							19.8							1.10
UCD03396	84-97	C	S							16.2							1.62

---

Water Content				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-
				(- - Atterberg - -)		(- - - - - Bulk Density - - - - -)			(- - - - - - - - - - - - - - - - - - - - - - - Water Content - - - - - - - - - - - - - - - - - - - - -)
				(- - - Limits - - -)		Field	Recon	Recon	Field	Recon	(- - - - - - - - - - - - - - Sieved Samples - - - - - - - - - - - - -)
				LL	PI		33	Oven		33	6	10	33	100	200	500
	Depth						kPa	Dry		kPa	kPa	kPa	kPa	kPa	kPa	kPa
Layer	(cm)	Horz	Prep	pct <0.4mm		(- - - - - - - - g cm-3 - - - - - - -)			(- - - - - - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - - - - - - -)
												3C1b1a	3C1c1a
UCD03393	3-18	A11	S									55.6	41.6
UCD03394	18-46	A12	S									51.5	40.2
UCD03395	46-84	B2	S									38.7	29.3
UCD03396	84-97	C	S									42.3	30.0

---

Carbon  &  Extractions				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-	-18-	-19-
				(- - - - - Total - - - - -)			Est	OC	C/N	(- - - Dith-Cit Ext - - -)			(- - - - - - Ammonium Oxalate Extraction - - - - - -)						(- - - Na Pyro-Phosphate - - -)
	Depth			C	N	S	OC	(WB)	Ratio	Fe	Al	Mn	Al+½Fe	ODOE	Fe	Al	Si	Mn	C	Fe	Al	Mn
Layer	(cm)	Horz	Prep	(- - - - - - - - - - % of <2 mm - - - - - - - - - -)						(- - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - -)								mg kg-1	(- - - - - - % of < 2mm - - - - -)
					4H2a			6A1
UCD03393	3-18	A11	S		0.32			9.90	31
UCD03394	18-46	A12	S		0.25			6.52	26
UCD03395	46-84	B2	S		0.08			1.90	23
UCD03396	84-97	C	S		0.06			1.47	25

*** Primary Characterization Data ***

Pedon ID: 58-CA-12-007x

( Humboldt, California )

Print Date: Apr 21 2026 6:46PM

Sampled As	:	CHAIX		Loamy-skeletal, mixed, mesic Typic Xerumbrepts
University of California at Davis Soil Resource Laboratory			;	Pedon No.  UCD5812007

---

pH  &  Carbonates

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

(- - - - - - - - - - - - - - - - - - pH - - - - - - - - - - - - - - - - -)

(- - Carbonate - -)

(- - Gypsum - - -)

CaCl2

As CaCO3

As CaSO4*2H2O

Resist

Depth

0.01M

H2O

Sat

<2mm

<20mm

<2mm

<20mm

ohms

Layer

(cm)

Horz

Prep

KCl

1:2

1:1

Paste

Oxid

NaF

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

cm-1

8C1b

UCD03393

3-18

A11

S

5.3

UCD03394

18-46

A12

S

5.0

UCD03395

46-84

B2

S

5.2

UCD03396

84-97

C

S

5.0

---

Phosphorous

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

(- - - - - - - - - - - - - - - - - - - - - - - Phosphorous - - - - - - - - - - - - - - - - - - - - -)

KCl

Melanic

NZ

Acid

Anion Exch Resin

Bray

Bray

Olsen

H2O

Citric

Mehlich

Extr

Depth

Index

Oxal

Available

Capacity

1

2

Acid

III

NO3

Layer

(cm)

Horz

Prep

%

(- - - - - - - - - - - - - - - - - - - - - - - - - - - mg kg-1 - - - - - - - - - - - - - - - - - - - -)

4D5a1

UCD03393

3-18

A11

S

0.3

UCD03394

18-46

A12

S

tr

UCD03395

46-84

B2

S

tr

UCD03396

84-97

C

S

tr