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Updating livelihood zones
Q. How frequently does a livelihood zoning need to be updated?
A. Rural economies in developing countries tend not to change all that rapidly, and a good livelihood zone map will generally be valid for roughly 10 years. What varies is the prevailing level of food or livelihood security, but this is a function of variations in hazard, not variations in the underlying pattern of livelihood itself. Put another way, the level of maize production may vary from year to year (hazard), but the underlying pattern of agricultural production does not (the livelihood).
