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Table 11 Relative extent (%) of the land degradation types

From: Assessment of land degradation and implications on agricultural land in Qalyubia Governorate, Egypt

Main mapping unit

Area (acres)

Water logging (depth of water table (cm)

Compaction (bulk density) (g/cm3)

Salinization EC (dS/m)

Alkalization (ESP %)

> 100

100–75

75–50

< 1.2

1.2–1.35

1.35–1.50

< 4

4–8

8.16

< 15

15–25

25–35

I

861.39

4.41

53.81

41.78

60.12

39.88

–

61.29

38.71

–

89.16

10.84

–

SI

1642.76

8.23

59.13

32.64

51.43

48.57

–

70.82

29.18

–

90.21

9.79

–

L

2116.80

19.80

51.03

29.17

54.90

45.10

–

8.19

90.58

1.23

82.14

17.86

–

O.M

20,913.82

39.22

58.09

2.69

32.70

59.13

8.17

4.82

63.58

31.60

77.21

22.79

–

O.B

39,841.59

42.17

54.65

3.18

21.16

64.02

14.82

1.20

56.98

41.82

58.8

41.2

–

D.B

70,893.74

26.17

62.54

11.29

–

77.84

22.16

0.80

50.02

49.18

46.19

53.81

–

T.B

391.48

75.84

24.16

–

51.62

48.38

–

65.29

34.51

0.20

83.31

16.69

–

T

9991.79

76.28

23.72

–

54.11

45.89

–

61.11

38.49

0.40

80.26

19.74

–