Work package 9: Landscape Model
A landscape model of stand dynamics in beech forests will developed from an existing model, FORGRA (Jorritsma et al 1999), to help synthesise the results from WPs 2, 3, 4, 5, 6 and 7. The existing forest gap model will have a landscape output added portraying the forest in an area by means of a cellular grid. It will also have a subroutine added to simulate CWD dead wood decomposition and associated biodiversity. Decay of dead wood will be based on the decay model developed in WP 7, and the probability matrix developed in WP 6 will be used to simulate plant and fungi species presence (using selected indicator taxa). It will be parameterised for different tree species occurring in three forest types in three different regions (see WP 13).
The species to be parameterized and forest types to be analysed will be decided in WP 13 (case studies). It could be the following forest type; free draining, nutrient poor acid beech forests of NW European lowlands (dominant species; Q robur/petraea, F sylvatica, B pendula), mesotrophic beech forests of the NW European lowlands and low mountains (species; F. sylvatica, F. excelsior, Q. robur, T. cordata, A. pseudoplatanus), mountaneous beech forests of C and SE Europe (species; F. sylvatica, A. alba and P. abies). Parameterisation and validation of the model will be based on datagathered in WP 1 & 2.
Work-package leader:
Irma Jorritsma,Institute of Forestry and Nature Research (IBN-DLO)
Droevendaalsesteeg 3a, 6700 AA, Wageningen, THE NETHERLANDS , Fax: (+31) 317 424 9988, phone: (+31) 317 47 7893, e-mail:
Jens Emborg, - last update:8 March 2012