Table 1 ForCEEPS species parameter values with their unit for birch and pine

Ft

Foliage type: seasonal leaf loss

–

Deciduous

Evergreen

Rameau et al. 1989

H_max

Maximum height

m

20

30

Rameau et al. 1989; IGN 2016, 2018

s

Allometry parameter

–

103

62

This study

g

Optimal growth parameter

–

278

400

Didion et al. 2009; Fyllas et al. 2010

Amax

Maximum age

Years

150

300

Rameau et al. 1989

DDmin

Minimal required annual or seasonal degree-days sum

°C

610

700

Botkin et al. 1972; IGN 2016

DrTol

Drought tolerance index, to be compared to the evapotranspiration deficit based on a bucket model of soil moisture

Continuous index with values between

0.16

0.4

Ellenberg and Mueller-Dombois 1966

0 (sensitive) to 1 (tolerant)

Nreq

Soil nitrogen requirement

Integer index with values between

1

1

Ellenberg and Mueller-Dombois 1966; Niinemets and Valladares 2006

1 (weak requirements) to 5 (strong req.)

ShTol

Shade tolerance, to be compared with the relative amount of light reaching the canopy of the tree

Integer index with values between

9

9

Ellenberg and Mueller-Dombois 1966; Niinemets and Valladares 2006

1 (shade tolerant) to 9 (shade intolerant)