@article{fdi:010063598, title = {{P}alaeofires in {A}mazon : interplay between land use change and palaeoclimatic events}, author = {{C}ordeiro, {R}. {C}. and {T}urcq, {B}runo and {M}oreira, {L}. {S}. and {R}odrigues, {R}. {D}. {R}. and {S}imbes, {F}. {F}. {L}. and {M}artins, {G}. {S}. and {S}antos, {A}. {B}. and {B}arbosa, {M}. and da {C}onceicao, {M}. {C}. {G}. and {R}odrigues, {R}. {D}. and {E}vangelista, {H}. and {M}oreira {T}urcq, {P}atricia and {P}enido, {Y}. {P}. and {S}ifeddine, {A}bdelfettah and {S}eoane, {J}. {C}. {S}.}, editor = {}, language = {{ENG}}, abstract = {{I}nterpreting the geological record of {A}mazon biomass combustion requires comparing charcoal accumulation rates in various biomes at different time scales. {C}harcoal accumulation rates, a proxy for palaeofire records, were obtained in sediment cores from {A}mazon lakes surrounded by several vegetation types and from a reservoirs in an intense land use change region. {T}he records presented in this study were obtained in the following areas i) a reservoirs in {A}lta {F}loresta region (northern {M}ato {G}rosso {S}tate); ii) {L}ago do {S}aci (southern {P}ars {S}tate), a lake close to {A}lta {F}loresta and located at the southern border of {P}ara {S}tate; iii) a bog in an ecotone area in the {H}umaita region (southern {A}mazonas {S}tate); iv) lakes in lateritic iron crust of the {C}arajas {H}ills (southeastern {P}ara {S}tate); v) {L}ago {C}omprido, a floodplain lake close to the {A}mazon {R}iver and surrounded by tropical rain forest ({M}onte {A}legre, {P}ara {S}tate; vi) {L}agoa da {P}ata in the {M}orro dos {S}eis {L}agos alkaline complex ({S}ao {G}abriel da {C}achoeira, {A}mazonas {S}tate) and vii) {L}ago {C}aracarana, a secluded lake in the northern {A}mazon cerrado ({R}oraima {S}tate). {T}he highest charcoal accumulation rates were observed for modern records related to an intense change in land use at {A}lta {F}loresta, which had no precedent during the {H}olocene history of the {A}mazon. {H}igh charcoal accumulation rates that were observed in the {C}arajas region during low lake level phases in the {A}mazon in the mid-{H}olocene were comparable to those at the onset of the human settlement in {A}lta {F}loresta region. {A}n increase in charcoal accumulation rate was observed in the late {H}olocene when the lake level was high, suggesting an interaction between climates and human presence. {L}ow charcoal accumulation rates are typical of modern high rainfall environments, as observed in {L}agoa da {P}ata where the environment is not susceptible to occurrences of wildfires even during relatively drier climatic phases. {L}ow charcoal accumulation rates also exist in the relatively dry cerrado (savanna type) biome even during relatively dry phases in the {C}aracarana region where the savanna-type vegetation biomass is lower and thus generates less charcoal particles than forest ecosystems.}, keywords = {{A}mazon ; {P}alaeofires ; {C}harcoal ; {C}limatic changes ; {H}uman impacts ; {AMAZONIE} ; {BRESIL}}, booktitle = {{C}ontinental and coastal marine records of centennial to millennial changes in {S}outh {A}merican climate since the last glacial maximum}, journal = {{P}alaeogeography {P}alaeoclimatology {P}alaeoecology}, volume = {415}, numero = {no sp{\'e}cial}, pages = {137--151}, ISSN = {0031-0182}, year = {2014}, DOI = {10.1016/j.palaeo.2014.07.020}, URL = {https://www.documentation.ird.fr/hor/fdi:010063598}, }