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FP5

NAT-MAN Report Summary

Project ID: QLK5-CT-1999-01349
Funded under: FP5-LIFE QUALITY
Country: Netherlands

Landscape model

The objective of the research was to produce an integrated model of long-term stand development in beech forests, able to evaluate the consequences of forestry management systems on tree regeneration and biodiversity. The model was named FORSPACE, which is an acronym for FORest dynamics in SpAtially Changing Environments. FORSPACE is a spatial explicit and process-based model on forest dynamics at the landscape level, describing the processes for autonomous forest succession including dispersal of seeds, germination, establishment, growth and competition, mortality, and grazing by ungulates. Many of the formulations of the processes and the parameterisations are based on the gap model FORGRA. Most of the parameter values are obtained from literature and stored in a MS-Access database.

The processes driving autonomous forest dynamics was investigated under standardised conditions and using a case study area of 200ha beech forest. The model dynamics under controlled conditions showed that based on the current initialisation and parameterisation, growth in monoculture and in mixture and forest dynamics are in most cases accurately predicted by the model for trees, shrubs and herb species, including grasses. The case study demonstrated that there are important interactions between the autonomous development of forest factors and landscape forming processes. The autonomous development of the forest is based on dispersion of seeds, establishment, growth, competition, mortality, which may be disturbed by herbivores and fire.

Contact

Irma JORRITSMA, (Scientist)
Tel.: +31-317-477893
Fax: +31-317-4249988
E-mail
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