[EDUNEXT] Università degli Studi di Pavia

Mitigation of extreme events due to climate change through Nature Based Solutions (NbS)

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Episodes (8)

Exploring the intersection of biology and engineering.It focuses on Microbially Induced Calcite Precipitation (MICP)—a sustainable soil-stabilization technique using ureolytic bacteria (like Sporosarcina pasteurii ) to produce a natural mineral "glue" that binds loose particles together.

Moving from bacteria to the underground world of fungi.It dives into how filamentous fungi grow a complex, three-dimensional vegetative network of microscopic branching filaments (mycelium and hyphae) to weave through and reinforce soil structures.

Stabilizing the ground using the non-living biological molecules that organisms produce.It highlights renewable, biodegradable biopolymers—classified into plant-based (guar gum), animal-derived (chitosan), and microbial (xanthan gum) families—and how their chemical mechanisms physically bind or coat coarse and unstable soils.

Moving above ground to "living engineers"—grasses, shrubs, and trees.It covers the mechanics of root reinforcement as a "two-for-one" deal: providing a mechanical physical net (like the deep roots of Vetiver grass) and performing a hydrological role by pumping water out to keep soil from getting mushy

How to treat bare ground that needs a quick biological "bandage".It explains how applying layers of organic mulch (like wheat straw, wood chips, or compost) or inorganic armor creates a protective skin that regulates moisture, regulates soil temperature, and stops erosion in its tracks.

Zooming out from individual hillsides to the broader landscape's "circulatory system".It discusses managing water across entire landscapes using natural water control systems rather than massive concrete dams, helping the terrain behave like a giant sponge to avoid catastrophic slope failures.