INCREASING SUSTAINABLE SUPPLIES OF WATER - KENYA

Created by: AliceTaylor13
Created on: 03-06-18 10:30

What is happening with Kenya in regards to water?

- LIC. - Hot, dry climate. - Most rain falls in just a few heavy downpours each yr. - Most rivers only flow through the rainy season (dry season=water evaporates). - Difficult for rural communities to store water for future use.

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What have people in Kenya's Machakos District been helped to build?

- Sand dams, which now give them access to water all yr round.

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What happens in the rainy season?

- Low dam (1m high) built across river.-Rainy season=water flowing=coarse material (e.g. sand) is trapped behind dam. - Water gets trapped between sand particles (1/3 of what is trapped behind dam is water).

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What happens in the dry season?

-Sand prevents water from being evaporated by hot sun during dry season.-When river stops flowing, water can be extracted from sand by digging well, piping water through dam to tap or simply digging holes+scooping out the water.

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Positives

- The dams are cheap to build, use local materials and dont require much maintenance. - Height of dam can be raised each yr to trap more sand, and more water.

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Other cards in this set

Card 2

Front

What have people in Kenya's Machakos District been helped to build?

Back

- Sand dams, which now give them access to water all yr round.

Card 3

Front

What happens in the rainy season?

Back

Card 4

Front

What happens in the dry season?

Back

Card 5

Front

Positives

Back

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INCREASING SUSTAINABLE SUPPLIES OF WATER - KENYA