The Trees of the Pisa Botanic Garden under Climate Change Scenarios: What Are We Walking into?

Botanical gardens are dynamic systems of high scientific, ecological, cultural, and historical value. They are irreplaceable places to cultivate, manage, study, and preserve tree diversity. One of the ongoing biggest challenges worldwide in managing and preserving trees is climate change, which exposes specimens to more stressful and severe environmental conditions, causing an increase in mortality. In our research, we aimed to assess the future climate change impact on the tree collection of Botanic Garden of Pisa in order to outline the expected consequences about tree cultivation and management. Under the most pessimistic scenario, in 2090 more than 60% of the tree species cultivated in the Botanic Garden of Pisa are expected to fall outside of their climatic niche. Future chances and pitfalls in managing urban green areas, focusing on the botanical garden community, are also explored.

Automated summary

Botanical gardens are invaluable for cultivating, managing, studying, and preserving tree diversity. However, climate change poses a significant challenge for tree management and conservation, as it exposes trees to more adverse environmental conditions. This research assesses the impact of future climate change on the tree collection of Botanic Garden of Pisa, highlighting the potential consequences for tree cultivation and management. The study also explores the opportunities and challenges in managing urban green areas, focusing on botanical garden communities.