| Abstract: | The main objective of this study was to examine the causes of the chlorotic symptoms in the natural vegetation of Sousaki region in South Greece. Sousaki is an area of late stage volcanic activity where gases rich in SO2, CO2 and less H2S and CH4 are emitted from mofettes. Detailed plant analyses showed that healthy and chlorotic plants had a similar chemical composition regarding macro- and micro elements, except S. Total S was much higher in chlorotic than in the healthy plants, although they were grown on soils with similar properties. This is traced back to the effect of SO2. |
