The assessment of landscape resources has four models: expert' psychophysical, cognitive and experiential paradigm. From the results of previous researches. We understand that the landscape perceived by us is an image which is obtained through the interaction with our past experiences in naturally limited circumstances. This image is a whole and a process. It is not polarized as strict beauty and ugliness; instead' it is a spectrum of choices between the two extremes according to the assessors' subjective feelings in changin gspace and time.