Chia, wetter and Drier challenge

DESIGN FOR SUSTAINABILITY

WETTER AND DRIER CHALLENGE Maria Camila Hernández M.

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CHÍA TOWN LOCATED 10 KM TO THE NORTH OF THE CITY. THE CITY HAS AN AREA OF 79 KM 2.

145,000 HABITANTS AVG TEMPERATURE 18º

During the last decade, Chía has experienced a significant growth compared to previous years, leading to bigger and unplanned settlements.

Growth on peripheral areas that are part of the wetland circuit that belongs to the Cundinamarca region, settlements on land designed or planned for agriculture or cattle raising activities have been a highlight that has to be taken on to consideration on how to prevent future floods.

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CHIA WATER SOURCES AND WETLANDS

Río Bogotá goes through 64 Has on the East of Chía, being the largest river that intercepts the city.

The buffer zone should be of 105 mts.

Currently the buffer zone has been used for different acitivities such as agropecuary, institutional, residential

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CHIA WATER SOURCES AND WETLANDS

There are different water sources that interact through the city.

Main sources are Río Bogotá and Río Frio.

Wetlands are part of the ecosystem, they interact with Rio Bogotá thorughout their path

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CHIA WATER SOURCES AND WETLANDS Chia's ecosystem circuit is composed by diverse systems such as: Native forests 1,470 Has Planted forests 177 Has Rivers 65 Has Other water bodies 71 Has Confined crops 317 Has Pastures 2645 Has Continuous Urban Tissue 1702 Has Discontinuos Urban tissue 1323 Has A high percentage on the land that belongs to Chía is part of the forest area or a agroecosystem

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FLOODS CAUSED BY LA NIÑA PHENOMENOM RÍO FRÍO AND RÍO BOGOTÁ Buffer zones have been inhabited, leading to unplanned floods affecting the city.

Waste disposal is done directly to the river´s watercourse

WATER FLOWS The encounter between water used for agricultural activities and the sewerage system caused an overflow of Rio Bogota and Rio Frio

FLOODABLE AREAS

FLOODS CAUSED BY LA NIÑA PHENOMENOM

ORGANISMS CHOSEN HOWÂ ARE THEY ABLE TO MANAGE WATER EFFICIENTLY?

Pycnoporus sanguineus Tropical rain forest

This fungi is able to absorb the water needed on follicles named hyphae.

FInger-like follicles that absorb and retain the water needed.

Hyphae alterations depending on thermal conditions Hyphae seen thorugh the microscope

ORGANISMS CHOSEN HOWÂ ARE THEY ABLE TO MANAGE WATER EFFICIENTLY?

Managing water flow by retaining it through a layer on their skin. They are capable to submerge under soil and to obtain water from it

PELOBATES CULTIPRES Spain

Their rugged skin is capable of creating a thin layer that can absorb and retain water for long periods of time.

ORGANISMS CHOSEN HOW ARE THEY ABLE TO MANAGE WATER EFFICIENTLY?

CACTACEAE Stenocereus queretaroensis Dry tropical forest

They can handle temperatures between -5º and 45º. The disposition on the leaves of the cactus are able to absorb and retain water.