On the use of satellite VEGETATION time series for vegetation disturbance recovery assessment

摘要: The characterization of vegetation reaction to disturbance is primary importance since changes in the status or types play an active role ecological processes (such as productivity level, creation altered patches, modification structure and shifts cover composition), well land surface energy, water balance, carbon cycle). assessment impacts on resources requires investigations performed at different temporal spatial scales, from local up regional level. In such a context, satellite technologies can be profitably used for investigating dynamics after scales; although, dynamical induced by are very difficult study they affect complex soil-surface-atmosphere system, due existence feedback mechanisms involving human activity, patterns subsystems climate. this study, time series normalized difference index (NDVI) data derived SPOTVEGETATION was examine recovery characteristics drought fire affected some test areas Mediterranean ecosystems Southern Italy.