Risk map for the spread of black locust (Robinia pseudoacacia) into dry biotopes valuable for nature conservation in the state of Brandenburg

In Germany, black locust has been classified as an invasive species by nature conservation. On the other hand, it is considered robust to climate change, copes with dry, nutrient-poor soils and has a particularly hard wood. In this conflict, we try to work out problems and opportunities for both nature conservation and forestry with a risk map. Based on dry biotopes valuable for nature conservation as a protected good, we derive zones in which the spread of black locust is problematic. From a distance of 500 m or more between dry biotopes and black locust occurrences, however, we see no threat to nature conservation areas.