PROBLEM TO BE SOLVED: To provide a cultivation abandoned site determination method, a cultivation abandoned site determination program and a cultivation abandoned site determination device which can grasp the situation of cultivation abandoned sites.SOLUTION: A cultivation abandoned site determination device 10 inputs time-series data on the intensity of one or more wavelength region. Depending on whether input time-series data includes a section having its intensity equal to or higher than a predetermined rate of change, the cultivation abandoned site determination device 10 determines whether a field associated with the time-series data is a cultivation abandoned site.SELECTED DRAWING: Figure 1
