The Juggog series are members of the fine loamy, mixed, mesic family of Anthraquic Eutrudepts [Hydragric Anthrosols (Eutric Oxyaquic Siltic) classified by WRB]. These soils have reddish brown silt loam Ap1 horizons with red mottles, reddish brown silt loam Ap2 horizons with yellowish brown mottles, reddish brown silt loam Bw1 horizons with strong brown mottles, reddish brown loam Bw2 horizons with strong brown mottles, and reddish brown loam C horizons with yellowish brown mottles. These soils are formed on local valleys in red shale areas.

Typifying Pedon: Juggog silt loam-paddy rice (Colors are for moist soil).

  Slope: 2-7%

  Elevation: 20 m above m.s.l.

  Soil moisture regime: Udic (Anthraquic)

  Soil temperature regime: Mesic

  Parent material: Alluvium-colluvium from gray shale

  Diagnostic features: An ochric epipedon from a depth of 0 to 25 cm and a cambic horizon from a depth of 25 to 79 cm (An anthraquic horizon from a depth of 0 to 25 cm and a hydragric horizon from a depth of 25 to 79 cm by WRB).

  Described by: Song, K. C., S. J. Jung, and D. C. Noh,  14 Dec., 2011.

Morphological properties of typifying pedon.

Ap1  - 0 to 15 cm. Reddish brown (5YR 4/3) silt loam; common fine to medium prominent red (2.5YR 5/6) mottles; structureless, puddled; slightly sticky and slightly plastic; many fine to medium roots; common fine to medium pores; abrupt smooth boundary.

Ap2 - 15 to 25 cm. Reddish brown (5YR 4/3) silt loam; common fine to medium distinct yellowish brown (10YR 5/4) mottles; weak fine to medium subangular blocky structure; firm, sticky and plastic; few fine roots; common fine to medium pores; clear smooth boundary.

Bw1 - 25 to 40 cm. Reddish brown (5YR 4/4) silt loam; common fine to medium distinct strong brown (7.5YR 4/6) mottles; weak medium to coarse subangular blocky structure; firm, sticky and plastic; thin continuous clay cutans; few fine roots; common fine to medium pores; few Mn mottles; abrupt smooth boundary.

Bw2 - 40 to 79 cm. Reddish brown (5YR 4/3) loam; few fine to medium prominent strong brown (7.5YR 5/6) mottles; moderate fine to medium subangular blocky structure; firm, sticky and plastic; thin continuous clay cutans; no roots; common fine to medium pores; few medium to coarse worm holes; clear smooth boundary.

C   - 79 to 160 cm. Reddish brown (5YR 4/3) loam; few fine to medium distinct yellowish brown (10YR 5/4) mottles; structureless, massive; friable, slightly sticky and slightly plastic; common fine to medium pores; few medium to coarse worm holes.

  The typifying pedon has an ochric epipedon from a depth of 0 to 25 cm and a cambic horizon from a depth of 25 to 79 cm. That can be classified as Inceptisol. It is used for paddy field, but does not have aquic conditions for some time in normal years in a layer at a depth between 40 and 50 cm from the mineral soil surface. Therefore it can be classified as Udept. It has a base saturation (by NH4OAc) of 60% or more in one or more horizons at a depth between 25 and 75 cm from the mineral soil surface. That keys out as Eutrudept. It has anthraquic conditions and can be classified as Anthraquic Eutrudept.

  The typifying pedon has fine loamy particle-size class and mesic soil temperature class. Therefore it can be classified as fine loamy, mixed, mesic family of Anthraquic Eutrudept.

Type Location: About 200 meters north-west of the Dosanjae, Sangil Ri, Hwajeong Myeon, Euiryeong Gun, Gyeongsangnam Do (128° 16' 32.0'', 35° 15' 20.0'').

Range in Characteristics: These soils have ochric horizons and cambic horizons. The solum thickness ranges from 50 to 100 cm and depth to hard rock is more than 2 meters. Base saturation is more than 60 percent. Reaction is slightly acid to neutral. Ap horizons are reddish brown, dark reddish brown silt loam with strong brown, yellowish brown, or yellowish gray mottles. The cambic B horizons are reddish brown or dark reddish brown silty clay loam, silt loam, or loam with yellowish brown mottles. C horizons are dark reddish brown loam with strong brown mottles.

Competing Series and Their Differentiae: These soils are the Pangog, Yulgog, and Gangjin soils. The Pangog soils occur on mountain foot slopes and are derived from porphyry materials. The Yulgog soils have fine silty texture class and are derived limestone materials. The Gangjin soils have fine silty texture class and are derived from porphyry rocks.

Setting: The Juggog soils occur on local valleys derived from red shale materials. The dominant slopes are 7 to 15 percent and range from 2 to 30 percent.

Principal Associated Soils: The Habin, Buyeo, and Sirye soils are associated with the Juggog soils in higher positions. The Gamgog, Maryeong, Samam, and Imdong soils occur on similar physiographic positions.

Drainage and Permeability: Moderately well drained. Permeability is slow. Runoff is probably medium depending on the slopes.

Use and Vegetation: Most of these soils are used for irrigated paddy rice during wet summer and for barley during dry winter and spring seasons.

Distribution and Extent: The Juggog soils are of small extent distributed in red shale areas in the southern parts of the country.

Series Established: Jinju city, Gyeongsangnam Do, 1975. Revised, Euiryeong Gun, Gyeongsangnam Do, 2011.

Laboratory data sheets of typifying pedon.

Depth (cm)	Horizon	( --- Total ---)			(-- Clay --)		(-- Silt --)		(------- Sand -------)
		Clay	Silt	Sand	Fine	Coarse	Fine	Coarse	VF	F	M	C	VC
		LT	.002	.05	LT	LT	.002	.02	.05	.10	.25	.5	1
		.002	- .05	- 2	.0002	.002	- .02	- .05	- .10	- .25	- .50	- 1	- 2
		- - - - - - - - - - - Pct of ˂ 2mm (3A1) - - - - - - - - - - -
0-15	Ap1	21.4	56.5	22.0			32.4	24.1	8.4	7.5	3.4	1.8	1.0
15-25	Ap2	21.7	56.1	22.5			28.9	27.2	8.1	7.9	4.0	1.8	0.5
25-40	Bw1	22.3	53.5	24.1			22.6	31.0	8.6	9.8	4.4	1.2	0.2
40-79	Bw2	21.5	36.5	42.0			14.6	21.9	9.2	14.7	10.1	6.0	2.0
79-160	C	23.0	34.8	42.1			14.6	20.2	8.9	15.0	9.6	6.6	2.0

Depth (cm)

Coarse Fractions(mm)

˃2mm

Orgn

Total

Extr

Total

(-- Dith -Cit --)

Weight

Wt

C

N

P

S

Extractable

2-5

5-20

20-75

.1-75

Pct of

Fe

Al

Mn

Whole

6A1c

6B3a

6S3

6R3a

6C2b

6G7a

6D2a

Pct of ˂ 75mm (3B1)

Soil

Pct ˂ 2mm

g/kg

Pct of ˂ 2mm

0-15

1.38

15-25

1.04

25-40

0.09

40-79

0.14

79-160

0.14

Depth (cm)

Ratio/Clay

Atterberg

( Bulk Density )

COLE

(- Water Content -)

WRD

CEC

1500

Limits

Field

33

Oven

Whole

Field

10

33

1500

Whole

kPa

LL

PI

Moist

kPa

Dry

Soil

Moist

kPa

kPa

kPa

Soil

8D1

8D1

4P1

4P

4A3a

4A1d

4A1h

4D1

4B4

4B1c

4B1c

4B2a

4C1

Pct ˂0.4mm

- - g/cc - -

cm/cm

-- Pct of ˂2mm --

cm/cm

0-15

0.65

1.21

39.7

15-25

0.59

1.39

23.9

25-40

0.49

1.47

28.5

40-79

0.60

1.52

23.6

79-160

0.59

Depth (cm)	( NH4OAc Extractable Bases )					Acid-	Extr	(----- CEC -----)			Al
	Ca	Mg	K	Na	Sum	ity	Al	Sum	NH4-	Bases	Sat
	5B5a	5B5a	5B5a	5B5a	Bases			Cats	OAc	+ Al
	6N2e	6O2d	6Q2b	6P2b		6H5a	6G9a	5A3a	5A8b	5A3b	5G1
	- - - - - - - - - - - - meq / 100g - - - - - - - - - - - -										Pct
0-15	7.5	0.8	0.1	0.1	8.5	8.2	0	16.7	14.0	8.5	0
15-25	7.9	0.9	0.1	0.1	9.0	6.0	0	14.9	12.9	9.0	0
25-40	7.0	1.3	0.1	0.1	8.5	3.3	0	11.7	10.9	8.5	0
40-79	8.3	2.1	0.1	0.1	10.6	3.4	0	13.9	12.8	10.6	0
79-160	8.4	2.3	0.1	0.1	10.9	3.9	0	14.8	13.5	10.9	0

Depth (cm)	(Base Sat)		CO3 as	Res	Cond	(------ pH ------)				Acid Oxalate Extraction
	Sum	NH4-	CaCO3			NaF	KCl	CaCl2	H2O	Opt	Al	Fe	Si
		OAc	˂2mm					.01M		Den
	5C3	5C1	6E1g	8E1	8I	8C1d		8C1f	8C1f	8J	6G12	6C9a	6V2
	---- Pct ----			ohms/cm	dS/m		1: 1	1: 2	1: 1		- Pct of ˂2mm -
0-15	51.0	60.7					5.1	5.6	6.3
15-25	60.0	69.7					5.4	5.9	6.7
25-40	72.0	77.9					6.0	6.6	7.3
40-79	75.7	82.2					5.5	6.3	7.1
79-160	73.7	80.7					5.2	6.1	6.9