Table 1 Statistics of richness for the three attributes woody species (WoodySp), forest edge species (FoEdge) and upper storey species (UpStorey). Cv (%): coefficient of variation; Med: median. Database: regular field survey of NFI3 and NFI4 (accessible forest without shrub forest)
From: Analysing the quality of Swiss National Forest Inventory measurements of woody species richness
NFI | Repeat survey | |||||
|---|---|---|---|---|---|---|
Cycle | Mean | Ccv (%) | Med | n | n | |
WoodySp | 4 | 9.24 | 71.53 | 8 | 5641 | 438 |
3 | 7.85 | 72.44 | 6 | 6914 | 626 | |
FoEdge | 4 | 11.87 | 41.86 | 12 | 831 | 60 |
3 | 9.84 | 47.31 | 10 | 1010 | 95 | |
UpStorey | 4 | 2.89 | 52.85 | 3 | 3874 | 268 |
3 | 2.70 | 52.87 | 3 | 5079 | 398 | |