July 2026
Invasion in time-lapse
Around the mother tree of the Tree of Heaven (Ailanthus altissima) near the university hospital, numerous vital saplings are sprouting – strikingly green amidst the summer-withered grassland. Behind the fence, where no mowing takes place, an early thicket of Tree of Heaven is already forming.
Photo: Mojdeh Safaei (ArcGIS Storymap for the GreenJLU project)
For more information:
PD Dr. André Große-Stoltenberg, Landscape Ecology and Landscape Planning