Table 1 Available measurements of dead wood elements and temporally consistent stump volume models throughout five Swiss National Forest Inventories (NFI1 to NFI5)

Standing dead tally tree^a > = 1.3-m height

Y

Y

Y

Y

Y

Downed dead tally tree^a

Y

Y

Y

Y

Y

Lying dead wood — line intersects sampling^b

N

N

Y

Y

Y

- Model 1 — fresh stumps of harvested tally trees with assumed diameter^c and height (30 cm)

N

y

y

y

y

- Model 2 — stumps of former^d tally trees with assumed diameter^c and measured upslope height

N

N

y

y

y

- Model 3 — stumps of former tally trees with measured top diameter upslope height

N

N

N

y

y

- Model 4 — all stump^e with two heights and diameters

N

N

N

N

y