## 4 Results  
### Piantarella (South Corsica, France)  
_Erica_ was dominant in the landscape from \(\sim\)7.4 kyr cal BP to the present (maximum of 64% at \(\sim\)7.4 kyr cal BP, Zone Piant-1/A, Figure 3), with phases of regression during 7.3-7.2 kyr cal BP in Piantarella 1 (Zone Piant-1/B), and during 6.6-6.4 kyr cal BPin Piantarella 3 (Zone Piant-3/A, Figure 3). Low values of AP (\(\sim\)10-25%), predominated by _Pinus_, with very low values in sclerophyllous, riparian and broadleaf deciduous trees in Piantarella 1. Cerealia-t is continuously present in Piantarella 1 (7.35-7.2 kyr cal BP), coinciding with regression in _Erica_, expansion of herbs, occurrence of spores of coprophilous fungi (mainly _Sordaria_ and _Sporormiella_[24]), and in some cases, peaks in Asteraceae and fungal indicators of soil erosion. In Piantarella 3, the occurrence of Cerealia-t and co-prophilous fungi coincides with falls in _Erica_ values in 6.6, 6.45, and 5.6 kyr cal BP and with regression of sclerophyllous trees in 5.35-5.3 kyr cal BP. Sclerophyllous trees show their highest values in Pollen Zones Piant-3/B (5.9-5.5 kyr cal BP) and Piant-2/A (4.7-4.6 kyr cal BP); and in Piant-2/B (0.4 kyr cal BP to present) _Erica_ majuis is still predominant, but now in a more open landscape, by the expansion of herbs (Figure 3), and, most likely, with a significant role of fire given the peak in lignocellulosic/carboniculous fungi. Amarnatheaceae-Chenopodiidaee show their highest values in zones Piant-1/A, Piant-2/A, and Piant-2/B, and, on the other hand, the highest values in _Isoetes_ occur in zones Piant-1/B, Piant-3/A, and Piant-3/B (Figure 3). Freshwater algae show peaks in Piant-3/A and Piant-2/B and aquatic and hygrophilous plants show a continuous curve with moderate values in Piant-1 and Piant-3, and almost disappear in Piant-2, from 4.7 kyr cal BP onwards.  
Figure 3: Percentage pollen and NPP diagram of selected taxa and categories for the Piantarella record (South Corsica). Red shading indicates phases of human impact, dark blue increases in salinity, and sky-blue freshwater phases. Categories (also valid for Figure 4): broadleaf deciduous (deciduous _Quercus_, _Corylus_, _Fagus_, _Tilia_, _Carpinus_, _Acer_); riparian (_Alhus cf. _glutinosa_, _Alhus cf. _suavcolens_, _Ulmus_, _Fnxinus_, _Salix_); sclerophyllous (_Quercus__lix-cococifera_, _Quercus__uber-type_, _Olea_, _Phillyan_, _G. _Tuniperus_); maquis (_Erica_, _Arbutus__unedo_, _Pistaci_, _Cistaceae_, _Ephara_, _Thymelaae_, _Asphodicus_); Coprophilous fungi (_Sordaria_-type_, _Cerophora_-type_, _Podospora_, _Podospora_, _Diltischia_), Carbonicolous-lignicolous fungi  
(_Gelasinospora_ HdV-2, _Neurospora_, _Conicchata ct. ligniaria_, _C. xilarispora_ HdV-6, _Kretzschmaria deusta_, types UAB-9, UAB-11, UAB-12 and UAB-38); Asteraceae (A. liguiliflorae, A. tubuliflorae, _Aster-type_, _Crisium-type_, _Centaurea_); soil-erosion indicators (_Gomus_, UAB-8); aquatic and hygrophytye plants (Cyperaceae, _Typha_, _Typha-Sparanium_, _Myriophyllum_, _Nuzhar_); freshwater algae (_Spingyra_, _Spirosyna_, _Hyrosyna_ HdV-210, _Spirosyna reticulata_, _Zygnema-type_, _Pediastrum_, _Mougeotia_, _Debarya_, _Closterium_), Other ferns (_Polypodium_, _Pteridium_, _Osmunda-type_, _Ophioglossum-type_ and other trilete spores).