Diameter class

Amplitude (cm)

Stumps inventoried

Stumps with decay

Stumps abandoned

F (%)

Abandonment rate

I

[90 - 100[

15

0

0

0

0.000

II

[100 - 110[

35

3

1

8571

2857

III

[110 - 120[

14

2

0

14,286

0.000

IV

[120 - 130[

14

7

0

50,000

0.000

V

[130 - 140[

7

3

2

42,857

28,571

VI

[140 - 150]

6

6

5

100

83,333

VII

[150 - 160]

1

1

1

100

100,000

Total

92

22

9

23,913

9783

Mean

13,143

3143

1286

-

­

Standard deviation

10,946

2545

1799

-

­