Table 1 General characteristics of the study stands on windward and leeward slopes in Tenerife, for control (CO), light thinning (LT) and heavy thinning (HT) treatments. Stand elevation, the percentage of basal area removed, the structural characteristics of the stands in 1988, before and after thinning treatment, and mean tree diameter of the sampled trees in 2007 are shown. BA Basal area, DBH diameter at breast high (1.30 m), SD standard deviation

Block ^a

Treatment

Elevation (m)

% BA removed

Density (stems ha⁻¹)

Mean BA (m² ha⁻¹)

Mean DBH (cm)

Density (stems ha⁻¹)

Mean BA (m² ha⁻¹)

Mean DBH (cm)

Mean DBH (cm) ± SD

W1

CO

1,650

1,072

62.4

27.2

30.7 ± 7.7

LT

1,640

7.68

752

53.4

30.1

656

49.3

30.9

34.2 ± 7.9

HT

1,643

52.02

800

52.1

28.8

352

25.0

30.1

39.9 ± 5.3

W2

CO

1,654

1,232

67.0

26.3

27.8 ± 4.8

LT

1,652

14.45

1,312

69.9

26.0

912

59.8

28.9

29.8 ± 7.4

HT

1,659

40.31

704

45.9

28.8

368

27.4

30.8

40.4 ± 5.9

W3

CO

1,671

992

56.6

26.9

31.6 ± 7.1

LT

1,671

6.35

752

50.4

29.2

656

47.2

30.3

37.5 ± 8.8

HT

1,670

46.57

928

49.6

26.1

352

26.5

31.0

37.3 ± 4.8

L1

CO

1,701

1,456

59.8

22.9

24.6 ± 4.5

LT

1,699

13.57

1,504

58.2

22.2

1,216

50.3

22.9

26.7 ± 4.2

HT

1,686

45.55

1,312

55.1

23.1

528

30.0

26.9

34.5 ± 2.9

L2

CO

1,698

1,664

65.5

22.4

26.1 ± 5.6

LT

1,704

13.66

1,600

52.7

20.5

1,280

45.5

21.3

23.0 ± 3.9

HT

1,697

38.13

1,605

43.8

18.7

800

27.1

20.8

23.9 ± 4.3

L3

CO

1,719

2,224

71.8

20.3

24.4 ± 5.6

LT

1,718

18.10

2,000

68.5

20.9

1,360

56.1

22.9

24.3 ± 6.2

HT

1,704

51.58

1,488

60.1

22.7

544

29.1

26.1

35.6 ± 5.9