The human activities have significantly changed the distribution and quantities of each
land cover types in surrounding of Plastiras reservoir. The decrease of Shannon’s diversity index in Greece
manifested intensive management and reconstruction of landscape by human beings, which means
reduced landscape heterogeneity and landscape diversity, leading to the decrease of environmental
benefits and ecological stability. The different and methodically new way that we analysed landscape
changes forms the basis for analysing landscape functional changes in the future. This may help us to
better evaluate historic effects of anthropogenic activities like dam or similar construction on landscape
structure and its changes and predict possible changes, in case of new dams realization.