Land surface phenometrics and their responses to climatic variables in the semi-arid rangelands of the central Zagros mountains.

A significant majority of pixels (95%) showed a negative trend in the EOS, signaling an earlier occurrence, while the remaining 5% exhibited a positive trend, suggesting a delay.

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x j and x i are date values (date of the growing season or value of maxNDVI) at time j and i Slope > 0 indicates an increasing trend, while the opposite indicates a decreasing trend, and the larger the absolute value, the more pronounced the trend.

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