The nitrogen load on Dutch Natura 2000 areas; local effects and strategies

To assess nitrogen levels on a local scale, an experimental version of the OPS model was combined with monitoring measurements from Natura 2000 areas. In a pilot study, expected emission trends were converted into future local deposition levels. These levels define the nitrogen loads which limit the future development of habitats. Such levels may alter due to local policies and measures. Within a specific Natura 2000 area, local patterns of nitrogen deposition were used for defining core areas where desired habitats can develop. Other areas could function as buffer zones to minimise influences from outside.