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Deforestation


The Mau forest has decreased a total of 100,000 hectares, from 1995-2005 mostly due to illegal logging. It is estimated that due to this deforestation Kenya has been deprived of $68 million (UN News Centre, 2012).
Currently, Kenya is in the process of repossessing the Mau Forest (M. Logan, 2012). This large decrease in the amount of trees of the Mau forest lead to many environmental problems, including longer dry periods due to the lack of water in the forest (M. Logan, 2012).
Evapotranspiration works as follows:
Water that goes through the tree is transpiration, and regular water vapor is evaporation. The less trees there are the less water from transpiration. This means less water in what is considered the great natural water tower that is the Mau forest.

Additionally, with no roots to hold in the soil, the run-off from the Mau forest is generally polluted. This run-off feeds into other water basins, including 12 rivers and bodies of water, one of which is the Ewaso Ngiro (M. Logan, 2012).

This example of the Mau Forest offers an insight into the way in which deforestation contributes to the water crisis from the scope of Kenya's largest forest.


References:

UN News Centre. (2012). "Cost of deforestation in Kenya far exceeds gains from forestry and logging, UN joint study finds." Retrieved from http://www.un.org/apps/news/story.asp?NewsID=43417

M. Logan. (2012). "Deforestation Costing Kenyan Economy Millions of Dollars Each Year and Increasing Water Shortage Risk," UNEP. Retrieved on February 28, 2012 from http://www.unep.org/newscentre/default.aspx?DocumentID=2698&ArticleID=9316
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