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In
Shibam the habitat is important for the fertilisation of the fields
with which it interacts in an indissoluble cycle of careful use
of the resources. The town is able to meet the need of collecting
human excrements, thanks to the kind of closet, the fabric of
the houses and the whole planimetry. Excrement, essential in order
to cultivate the desert , is dried in the sun. Thanks to the supply
of flood waters impounded by deviation dams, the excrement turns
into humus and colloidal material, which is dug out and used for
building and periodically renovating the tall adobe houses of
the town. Depressions are made, surrounded by embankments and
channels and shaded by the palm-grove. Their function is that
of providing agricultural foodstuffs and protecting the habitat
from the floods by absorbing and storing quantities of water.
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