Abstract
In recent years, oak decline phenomenon has caused severe damages in Zagros forests.
To deal with and managed this crisis, prior to any action, having accurate information
about the status and distribution area of this phenomena is necessary. Using satellite
data is one of methods to achieve information on the extent and severity of die back. For
this purpose, map of oak decline severity was prepared in four levels for some parts of
Ilam forests using Worldview-2 satellite data. Maximum likelihood, naive bayes, Knearest
neighbors and artificial neural network classification algorithm were used. The
results showed that among different classification methods, the results of artificial
neural network classification algorithm had most overall accuracy with 72.83%.
Moreover, our results confirmed that the Worldview-2 satellite data can illustrate the
severity of oak decline.
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