Relating Plant Biodiversity in Forests with the Spatial Scale of Ecosystem Processes
Table 4
Parameters of the hyperbolic saturation model (9) and error measures for the secondary Scots pine (Pinus sylvestris) forest types () substituting European beech (Fagus sylvatica) forests types (2–4).
Ecosystem type
Rubo-Culto-Pinetum sylvestris
Number of relevés
70
Mean sample area of relevés
0.08 ha
Mean species number of relevés (standard deviation)
Median of species number
26
Mode* of species number
26
Parameter q
0
0.5
1
2
6.75
4.16
2.92
2.02
[ha]
0.004
0.011
0.017
0.023
0.22
0.42
0.67
1.10
RMSE
0.0010
0.0017
0.0013
0.0004
RMSE%
0.03
0.05
0.05
0.02
Ecosystem type
Rubo-Avenello-Culto-Pinetum sylvestris
Number of relevés
286
Mean sample area of relevés
0.06 ha
Mean species number of relevés (standard deviation)
Median of species number
21
Mode* of species number
21
Parameter q
0
0.5
1
2
7.21
3.82
2.53
1.77
[ha]
0.002
0.007
0.012
0.014
0.17
0.37
0.65
1.04
RMSE
0.0036
0.0006
0.0008
0.0007
RMSE%
0.08
0.02
0.04
0.04
Ecosystem type
Avenello-Culto-Pinetum sylvestris
Number of relevés
411
Mean sample area of relevés
0.06 ha
Mean species number of relevés (standard deviation)
