The plant landscape of the imperial harbour of Rome

摘要: Abstract The research concerns the Tiber delta area, about 3 km far from present seacoast, where remains of ancient harbour Rome are located. In 42 AD, Claudius started construction and Nero completed it in 64 AD. Then, emperor Trajan went on to add a hexagonal basin former structure, which had gradually silted up. imperial was connected River ultimately city through channel. During period, most supplies imported Mediterranean provinces reached Portus. This study applies detailed pollen, microcharcoal, ostracod analyses together with radiocarbon dating sediments recovered two cores drilled area harbour. objective drillings identify morphological environmental features back Roman characterize landscape chronological framing records is based stratigraphical criteria, dates, historical data typology pottery fragments. Pollen, plant macroremains, assemblages indicate that record different periods time. dock core shows first phases activities, recording marine then brackish environment. typical coastal environment appears rather preserved. human presence clear, but not great impact. channel mainly water strong impact related Portus, port town. Anthropic indicators such as cultivated synanthropic taxa well fire use/occurrence evidence high pressure increasing centuries