@article{fdi:010091935,
  title = {{L}andscape-scale spatial variations of pre-{C}olumbian anthropogenic disturbances at three ring ditch sites in {F}rench {G}uiana},
  author = {{T}est{\'e}, {M}arc and {E}ngel, {J}ulien and {M}abobet, {K}{\'e}vin and {M}estre, {M}. and {B}rousseau, {L}ouise},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n the past two decades, repeated discoveries of numerous geometric earthworks in interfluvial regions of {A}mazonia have shed new light onto the territorial extent and the long-term impact of pre-{C}olumbian populations on contemporary landscapes. {I}n particular, the recent development of {L}i{DAR} imagery has accelerated the discovery of earthworks in densely forested hinterlands throughout the {A}mazon basin and the {G}uiana {S}hield. {T}his study aimed to evaluate the extent and landscape-scale spatial variations of pre-{C}olumbian disturbances at three ring ditch sites in the {F}rench {G}uiana hinterland. {W}e carried out extensive soil surveys along approximately 1 km-long transects spanning from ring ditches through the surrounding landscapes, and drawn upon multiple indicators, including archaeological artifacts, macro- and micro-charcoals, soil colorimetry, and physicochemical properties to retrace the pre-{C}olumbian history of these sites in terms of occupation periods, anthropogenic soil alteration, and ancient land use. {O}ur results revealed a perennial occupation of these sites over long periods ranging from the 5th and 15th centuries {CE}, with local enrichments in chemical indicators ({C}org, {N}, {M}g, {K}, {C}a) both within the enclosures of ring ditches and in the surrounding landscapes. {P}hysicochemical properties variations were accompanied by variations in soil colorimetry, with darker soils within the enclosure of ring ditches in terra-firme areas. {I}nterestingly however, soil properties did not meet all the characteristics of the so-called {A}mazonian {D}ark {E}arths, thus advocating a paradigm shift towards a better integration of {A}mazonian {B}rown {E}arths into the definition of anthropogenic soils in {A}mazonia. {S}oil disturbances were also associated to local enrichments in macro- and micro-charcoals that support in situ fire management that could be attributed to forest clearance and/or slash-and-burn cultivation. {T}aken together, our results support the idea that pre-{C}olumbian societies made extensive use of their landscapes in the interfluvial regions of the {F}rench {G}uiana hinterlands.},
  keywords = {{GUYANE} {FRANCAISE} ; {AMAZONIE}},
  booktitle = {},
  journal = {{PL}o{S} {O}ne},
  volume = {19},
  numero = {9},
  pages = {e0298714 [26 p.]},
  ISSN = {1932-6203},
  year = {2024},
  DOI = {10.1371/journal.pone.0298714},
  URL = {https://www.documentation.ird.fr/hor/fdi:010091935},
}