It however became apparent that there was a need to provide more stringent controls to address the environmental challenges of the country, notable among which were desertification, rapid deforestation, coastal and gully erosion, as well as a gamut of man-made environmental insults such as poor environmental sanitation, air pollution and electronic waste.
12.
The "'erosion index "'( "'EI "', also called the "'erodibility index "') is created by dividing potential erosion ( from all sources except gully erosion ) by the T value, which is the rate of soil erosion above which long term productivity may be adversely affected.
