 Hi everybody, first of all I would like to thank all organizer for the station to have the opportunity to present my research. So now I'm going to talk about some results of my PhD and title, our Geo-Ochaeological and Multiscolar Approach provides new insight about rapid climate changes and social dynamics consequences onto Mediterranean landscape during Bronze Age. So my research takes place in Mediterranean basin and more precisely into the stream and watershed in North Aegean-Grace, exactly in its lower valley, 15 km upstream is the delta in Aegean Sea. Currently, as you can see, it looks like a river into a huge, alluvial flat plain totally drained and cultivated since the 30s. We have conducted a significant fieldwork composed of 9 cores along 2 km transects study from the current stream on the channel to the west, and it is the last tributary Angitis to the east in rich archaeological context. After that, the study is focusing on lab work with multiproxies approach divided in geomorphological and paleological analysis in order to produce the paleo-environmental reconstruction. The transects study represented here provides information such as an incredible accumulation rate of more than 25 meters for the last 7 millennia and several phases of legal stream or fluvial dynamics characterized by some channel displacement during the last century. In order to study the mid to late Holocene climatic change and the Bronze Age dynamics, I present now the deepest core, H38, located close to the current stream on the channel. The stratigraphy presents 25 meters, Holocene deposits, in which 17 consistent radiocarbon data were performed in order to produce an accurate age-depth model. From a sedimentological point of view, we note an homogenous silty lake deposit during 5 millennia, like for all Bronze Age periods, interrupts during the antiquity by an erosive and intensive fluvial process. Equally, at first glance, the magnetic susceptibility doesn't record major changes before the last centuries. However, in agreement with the Lawson Initian, a tipping point seems to have occurred around 2200 BC. Then, pollen data can offer new information about hydrological changes and landscape evolution. So the main results are exposed in a synthetic pollen diagram that I present you know. 10 meters of deposit and 42 pollen samples allow us to study the period from early Bronze Age to the beginning of antiquity. In the bottom part of the studied period, the first palinosan between 3200 BC and 2400 BC confirms the attendance of lake environments surrounded by forestry landscapes with typical tree species dominated by Quercus, Penus Symbetris, and Austria-Carpinus Orientalis type. We note also a weak but continuous occurrence of coprofilus in pp's and in pp's indicative of fire avians. In this region, archaeological data attests that early Bronze Age started from 3200 BC and was characterized by population growth and agro-pastoral activities development such as supported by the drag diagram. After that, such as suggested by magnetic susceptibility and Lawson Initian, the pollen diagram shows an interruption by rapid climate change around 2200 BC. Concretely in the pollen diagram, we note a significant dry event attested by lake level decrease according to in pp's and deciduous forest reduction. Probably this event, generally called 4.2 bp event, marks the reinforcement of Mediterranean climatic condition towards the second part of Olossin in agreement with central Mediterranean studies. During the following centuries, all the anthropogenic indicators increased and the landscape was opened. Especially, we note the first continuous evidence of surreal farming. This change in growing practices was possible through the drying up of fertile wetland close to the lake. This pattern was relatively unmodified during 1 millennium until 1200 BC where a sudden and temporary drop of humid in pp's and some forested taxa was recorded corresponding with the end of late Bronze Age. Some centuries after this climatic event, around 800 BC, the pollen data show another severe drop. Almost forested taxa, decreased and humid in pp's indicators dropped in fearing another significant lake redition. Nevertheless, anthropogenic impacts were more and more pregnant with pastoral activities and on the slope and farming in a long area in agreement with the beginning of antiquity period. To sum up the result from this pollen sequence, we note that regional vegetation cover marks a typical pouch related to the 2200 BC events at the end of early Bronze Age period. This draw event is contemporary with reinforcement of anthropogenic evidences during Early Bronze Age, Middle Bronze Age transition. Nevertheless, the intensive landscape changes at this time don't affect negatively the anthropogenic evidences. This established an archaeological paradox with some theories because they indicate a decrease of sediment density for this period, but in case study, there is no social crisis inferred by this dramatic draw. On the contrary, the local population seems to benefit of this landscape change to develop their agro-pastoral practices into lowland areas. For now, come back and focus to a field study area to try to confirm and improve the knowledge about human and violent relationships during this period. Onto the transect study presented previously, we have already analyzed the UFSI-1 core located two kilometers from the previous one and on the foot of the late Neolithic phyllochorophy settlement. The pollen data was also performed from 8 raducabron data and 50 pollen samples from Early Bronze Age to Antiquity. Briefly, into the close and woodland landscape, at the beginning of Bronze Age, we note an erosive and opening process around 3,000 BC related to agro-pastoral activities and a significant dry event at 2,200 BC, attested by a group of lake indicators and substitution of re-perian forests by Mesophilus and Xotermophilus taxa. Nevertheless, in opposite to the previous pollen diagram, there is no significant change, decrease or intensification into human impact onto vegetation cover after the 2,200 BC climatic event. Furthermore, the anthropogenic pressure was already attested since 2 millennia in agreement with the early phyllochorophy settlements during late Neolithic and archeological data. To finish with our original results, let's move 50 kilometers to the east into a Tenagi philippine basin where an high density of Bronze Age settlements have been discovered and for some of them excavated. Among them, the oldest one, Tel of Dikilitesh was particularly studied and I take advantage of this opportunity to invite you to glance at the new book written by an archeologist team about the last 30 years of investigation. Around this site during the last 6 years, a significant on-site and off-site gearchological approach was performed, providing you new information about televolution sedimentation into the valley or vegetation changes but I can't present you right now to keep some time for the conclusion. In order to sum up both archeological and biological results, I present quickly the landscape surrounding evolution thanks to illustrated blood diagrams. The Tel of Dikilitesh, since early Neolithic, was abandoned around 3900 BC after a fire event. Nevertheless, human disturbances on the vegetation never disappeared. It was results during early Bronze Age around 3300 BC, inferring the clearance of mesophilus forest simultaneous with cultivating field expansion and vegetation cover reflects diversifying land management system as indicated by a greater diversity of cultivated or harvested plants. But what is the local impact of the 2200 BC dry event described previously from other Poland? Surprisingly, there is no major change into human activities and vegetation cover recorded around this site, only a progressive substitution of forested landscape by shrubs and frigana. During the late Bronze Age to antiquity, we observe main features of land-using densification such as improvement of water control in order to spread the plots and extension of the cultivated and grazing areas, inducing growth of slope erosion process and finally the foundation by Macedonian people of Philippine Antique City occurred in 357 BC. To conclude, we record clearly some rapid climate changes from Poland and geomorphological data during Bronze Age, but human environment climate relationships don't have always the same periodicities on the Mosaic Landscape Dynamics and there is no social environmental collapse directly resulting to the 2200 BC events in our study area. Bronze Age population seems to be relatively resilient locally to these dry events. These results invite us to adopt a geographical and multi-scalar approach in archaeological interpretation of climatic viability, landscape dynamic and social consequences. And for now, we try to reproduce this approach in other geographical contexts such as some Bulgarian valleys and upper trace to improve the knowledge about the topic of human climate relationships and discontinuities during Calcolitic and Bronze Age period. Thanks for your attention.