|Authors:||Tsanis, I. K. and Daliakopoulos, I. N.|
|Source document:||Daliakopoulos, I. and Tsanis, I. (eds) 2014. Drivers of change in the study sites. CASCADE Project Deliverable 2.2. CASCADE Report 06. 59 pp.|
In the Randi Forest Study Site, an NDVI trend break occurs during 1996-1998, disturbing the otherwise slightly increasing trend of vegetation greenness. This incident comes near the end of an extremely dry period, both as shown in the SPI48 plot and as perceived by the residents.
The system seems to recover after 1998-2000, with the nearby Asprokerammos dam overflowing in 2004 after record high precipitation (not shown here). Similar to Valencia though, the reduction of grazing licenses that was imposed in 2002 in Randi Forest has come too late to deter the problem. Before and after the NDVI discontinuity the seasonal component of the signal shows moderate variation. It is important to note that in Randi Forest the most significant transition took place when it was transformed from an actual Forest to a graze land.
Note: For an overview of the historical drivers of change and their analysis in all study sites see »Drivers of change in the study sites.