International Journal of Ecology / 2009 / Article / Tab 3

Research Article

Relating Plant Biodiversity in Forests with the Spatial Scale of Ecosystem Processes

Table 3

Parameters of the hyperbolic saturation model (9) and error measures for the close-to-nature European beech (Fagus sylvatica) forests types (1–4) with ecological site factors according to Table 1.

Ecosystem type 1Mercuriali-Fagetum sylvaticae
Number of relevés N244
Mean sample area of relevés0.07 ha
Mean species number of relevés ( standard deviation)
Median of species number33
Mode* of species number33
Parameter q 00.512

   6.524.092.951.86
   [ha]0.0020.0120.0190.016
   0.210.500.731.05
  RMSE0.01490.00190.00190.0003
  RMSE%0.330.050.080.02

Ecosystem type 2Melico-Fagetum sylvaticae
Number of relevés N300
Mean sample area of relevés0.06 ha
Mean species number of relevés ( standard deviation)
Median of species number20
Mode* of species number20
Parameter q 00.512

   6.333.332.111.37
   [ha]0.0020.0080.0110.012
   0.190.430.701.03
  RMSE0.00720.00250.00030.0004
  RMSE%0.170.090.010.03

Ecosystem type 3Milio-Fagetum sylvaticae
Number of relevés 203
Mean sample area of relevés0.07 ha
Mean species number of relevés ( standard deviation)
Median of species number14
Mode* of species number14
Parameter q 00.512

   5.603.341.880.98
   [ha]0.0090.0250.0250.024
   0.300.460.651.21
  RMSE0.00980.00460.00200.0020
  RMSE%0.220.220.150.15

Ecosystem type 4Majanthemo-Fagetum sylvaticae
Number of relevés N158
Mean sample area of relevés0.10 ha
Mean species number of relevés ( standard deviation)
Median of species number11
Mode* of species number10
Parameter q 00.512

   5.583.021.360.55
   [ha]0.0190.0650.0520.031
   0.290.460.571.06
  RMSE0.00200.00580.00280.0004
  RMSE%0.060.370.320.08

Calculated from a Gaussian fitting.

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