NbS a diverse scale per problemi complessi: il caso di Civita di Bagnoregio (VT)

Soil and water Bioengineering is a discipline founded on Nature Based Solutions.
If it remains faithful to its principles, it can set itself ambitious goals.
The masters of the discipline have always recommended that a careful botanical
analysis be carried out before intervening, so that the most suitable native species
can be chosen for the intervention. This contribution aims to support two hypotheses:
1) a study of vegetation attentive to its dynamism allows us to rationalize
the choice of the most suitable plant species. 2) a localized intervention may not
be sufficient if the problem is on a territorial scale. Civita di Bagnoregio (Central
Italy) is a suggestive medieval village of Etruscan origin that has inspired artists
from all over the world. Civita has a marked destiny: it was built on an ignimbritic
flow that rests on highly erodible clays and, over the centuries, has seen the
urban site gradually shrink. The landscape that surrounds it, the large expanses of
gullies, heralds what is destined to become what remains of the ancient city. Our
goal is to push this moment away as much as possible.