Assessment, Conservation and Sustainable Use of Forest Biodiversity

Assessment, Conservation and Sustainable Use of Forest Biodiversity
Fig. 1 and 2: Species-area-relationships for vascular plants in the herb layer in different ecologically
comparable beech-dominated forests in Northern Germany. Fig. 1: situation on richs soils, region “SH”. Fig.2:
situation on modrately rich soils, almost pure beech, region “MV”.- The compared forests differ in
management intensity as measured by the mean (17 years) amount of timber harvested per hectare and per
year (figures give cubic metres of timber).
Figure 1:
Rich soils, mainly mixed beech forests, management intensity quite different (0 to 17.6 m 3 timber
harvested/HA/year).
17,6
number of species
9,2
5,5
1,3
0,0
area (m 2 )
Figure 2:
Moderately rich soils, almost poor beech forests, management intensity very low (0 to 1.7 m 3 timber
harvested/HA/year) to zero.
number of species
1,7
0,0
area (m 2 )
90