Agriculture and Agri-Food Canada
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Soil Layer File (SLF)

The Soil Layer File is designed to handle attributes which vary in a vertical direction.

Relationships

  • A record in this file is unique with respect to SOILKEY.
  • This file can be linked to the CMP and NAME files via the SOILKEY field.

Field 

Name 

Type 

Width 

Dec 

Description 

1

PROVINCE

C

2

 

province code

2

SOIL_CODE

C

3

 

soil code

3

MODIFIER

C

3

 

modifier

4

LU

C

1

 

land use flag

5

LAYER_NO 

 

horizon number 

6

UDEPTH 

 

upper depth 

7

LDEPTH 

 

lower depth 

8

HZN_LIT 

 

horizon lithological discontinuity 

9

HZN_MAS 

 

master horizon 

10

HZN_SUF 

 

horizon suffix 

11

HZN_MOD 

 

horizon modifier 

12

COFRAG 

 

coarse fragments 

13

DOMSAND 

 

dominant sand fraction 

14

VFSAND 

 

very fine sand 

15

TSAND 

 

total sand 

16

TSILT 

 

total silt 

17

TCLAY 

 

total clay

18

ORGCARB 

organic carbon 

19

PHCA 

pH in calcium chloride 

20

PH2 

pH as per project report 

21

BASE 

 

base saturation 

22

CEC 

 

cation exchange capacity 

23

KSAT 

saturated hydraulic conductivity 

24

KP0 

 

water retention @ 0 kP 

25

KP10 

 

water retention @ 10 kP

26

KP33 

 

water retention @ 33 kP

27

KP1500 

 

water retention @ 1500 kP 

28

BD 

bulk density 

29

EC 

 

electrical conductivity 

30

CACO3 

 

calcium carbonate equivalent

31

VONPOST 

 

Von Post estimate of decomposition 

32

WOOD 

 

woody material

33

SOILKEY 

 

Linkage key