Wetlands are fundamental for the conservation of biodiversity and the purification of water. But often are considered as uncultivated areas and used for urban expansions.

The wetland Rocuant Andalien in Concepcion, in addition to the ecological functions, has also an important defensive function in relation to the city, subject to high seismic risk and tsunami. The excessive and uncontrolled urban growth exposes the city to greater risks arising from cyclical catastrophic events.
Hence the need to rethink the relationship between city expansion and environmental protection, identifying and strategically developing a boundary that interfaces the new urban landscape and the wetland.

The new resilient city limit is intended to:
-protect the city from tsunamis and floods,
-regenerate the existing humid environment
-raise public awareness of the importance of the wetlands.
-be a matrix for solving the problem of coexistence between the city and wetland.