Suchergebnisse

International audience ; Peatlands are environments that provide many essential ecological and heritage functions. The Bitche military camp (Moselle, France), although active for more than a century, has allowed the maintenance of wetlands that are now classified as Natura 2000 sites. Through the study of two peat sequences collected inside the camp, the main objectives of this study were to identify the current and past anthropic (particularly military) impact on the peatlands and to reconstruct the vegetation history. Radiocarbon dating and palynological analysis enabled the environmental changes affecting the landscape since the Neolithic period to be highlighted. Throughout this period, the area is characterised by a dominant forest environment with the persistence of pine. The modern period is marked by phases of opening up due to the establishment of agro-pastoral activities. Although contemporary anthropisation is poorly identified in the pollen records, geochemical analyses have revealed a significant accumulation of metals (Cu, Pb and Zn) in the surface horizons, probably linked to military activity. Weaker marking at depth could also reflect an older source of contamination. Despite these high metal contents, their mobility seems relatively limited due to their strong affinity with the organic matter of the peat horizons. ; Les tourbières sont des milieux qui assurent de nombreuses fonctions écologiques et patrimoniales essentielles. Le camp militaire de Bitche (Moselle, France), bien qu'actif depuis plus d'un siècle, a permis l'entretien de zones humides aujourd'hui classées sites Natura 2000. A travers l'étude de deux séquences tourbeuses prélevées à l'intérieur du camp, les principaux objectifs de cette étude étaient d'identifier l'empreinte anthropique (notamment militaire) actuelle et passée sur les tourbières et de reconstituer l'histoire de l'environnement végétal. Les datations radiocarbone et l'analyse palynologique ont permis de mettre en évidence les changements environnementaux affectant ...

International audience ; Peatlands are environments that provide many essential ecological and heritage functions. The Bitche military camp (Moselle, France), although active for more than a century, has allowed the maintenance of wetlands that are now classified as Natura 2000 sites. Through the study of two peat sequences collected inside the camp, the main objectives of this study were to identify the current and past anthropic (particularly military) impact on the peatlands and to reconstruct the vegetation history. Radiocarbon dating and palynological analysis enabled the environmental changes affecting the landscape since the Neolithic period to be highlighted. Throughout this period, the area is characterised by a dominant forest environment with the persistence of pine. The modern period is marked by phases of opening up due to the establishment of agro-pastoral activities. Although contemporary anthropisation is poorly identified in the pollen records, geochemical analyses have revealed a significant accumulation of metals (Cu, Pb and Zn) in the surface horizons, probably linked to military activity. Weaker marking at depth could also reflect an older source of contamination. Despite these high metal contents, their mobility seems relatively limited due to their strong affinity with the organic matter of the peat horizons. ; Les tourbières sont des milieux qui assurent de nombreuses fonctions écologiques et patrimoniales essentielles. Le camp militaire de Bitche (Moselle, France), bien qu'actif depuis plus d'un siècle, a permis l'entretien de zones humides aujourd'hui classées sites Natura 2000. A travers l'étude de deux séquences tourbeuses prélevées à l'intérieur du camp, les principaux objectifs de cette étude étaient d'identifier l'empreinte anthropique (notamment militaire) actuelle et passée sur les tourbières et de reconstituer l'histoire de l'environnement végétal. Les datations radiocarbone et l'analyse palynologique ont permis de mettre en évidence les changements environnementaux affectant ...

International audience ; Peatlands are environments that provide many essential ecological and heritage functions. The Bitche military camp (Moselle, France), although active for more than a century, has allowed the maintenance of wetlands that are now classified as Natura 2000 sites. Through the study of two peat sequences collected inside the camp, the main objectives of this study were to identify the current and past anthropic (particularly military) impact on the peatlands and to reconstruct the vegetation history. Radiocarbon dating and palynological analysis enabled the environmental changes affecting the landscape since the Neolithic period to be highlighted. Throughout this period, the area is characterised by a dominant forest environment with the persistence of pine. The modern period is marked by phases of opening up due to the establishment of agro-pastoral activities. Although contemporary anthropisation is poorly identified in the pollen records, geochemical analyses have revealed a significant accumulation of metals (Cu, Pb and Zn) in the surface horizons, probably linked to military activity. Weaker marking at depth could also reflect an older source of contamination. Despite these high metal contents, their mobility seems relatively limited due to their strong affinity with the organic matter of the peat horizons. ; Les tourbières sont des milieux qui assurent de nombreuses fonctions écologiques et patrimoniales essentielles. Le camp militaire de Bitche (Moselle, France), bien qu'actif depuis plus d'un siècle, a permis l'entretien de zones humides aujourd'hui classées sites Natura 2000. A travers l'étude de deux séquences tourbeuses prélevées à l'intérieur du camp, les principaux objectifs de cette étude étaient d'identifier l'empreinte anthropique (notamment militaire) actuelle et passée sur les tourbières et de reconstituer l'histoire de l'environnement végétal. Les datations radiocarbone et l'analyse palynologique ont permis de mettre en évidence les changements environnementaux affectant ...

International audience ; Peatlands are environments that provide many essential ecological and heritage functions. The Bitche military camp (Moselle, France), although active for more than a century, has allowed the maintenance of wetlands that are now classified as Natura 2000 sites. Through the study of two peat sequences collected inside the camp, the main objectives of this study were to identify the current and past anthropic (particularly military) impact on the peatlands and to reconstruct the vegetation history. Radiocarbon dating and palynological analysis enabled the environmental changes affecting the landscape since the Neolithic period to be highlighted. Throughout this period, the area is characterised by a dominant forest environment with the persistence of pine. The modern period is marked by phases of opening up due to the establishment of agro-pastoral activities. Although contemporary anthropisation is poorly identified in the pollen records, geochemical analyses have revealed a significant accumulation of metals (Cu, Pb and Zn) in the surface horizons, probably linked to military activity. Weaker marking at depth could also reflect an older source of contamination. Despite these high metal contents, their mobility seems relatively limited due to their strong affinity with the organic matter of the peat horizons. ; Les tourbières sont des milieux qui assurent de nombreuses fonctions écologiques et patrimoniales essentielles. Le camp militaire de Bitche (Moselle, France), bien qu'actif depuis plus d'un siècle, a permis l'entretien de zones humides aujourd'hui classées sites Natura 2000. A travers l'étude de deux séquences tourbeuses prélevées à l'intérieur du camp, les principaux objectifs de cette étude étaient d'identifier l'empreinte anthropique (notamment militaire) actuelle et passée sur les tourbières et de reconstituer l'histoire de l'environnement végétal. Les datations radiocarbone et l'analyse palynologique ont permis de mettre en évidence les changements environnementaux affectant ...

International audience ; Peatlands are environments that provide many essential ecological and heritage functions. The Bitche military camp (Moselle, France), although active for more than a century, has allowed the maintenance of wetlands that are now classified as Natura 2000 sites. Through the study of two peat sequences collected inside the camp, the main objectives of this study were to identify the current and past anthropic (particularly military) impact on the peatlands and to reconstruct the vegetation history. Radiocarbon dating and palynological analysis enabled the environmental changes affecting the landscape since the Neolithic period to be highlighted. Throughout this period, the area is characterised by a dominant forest environment with the persistence of pine. The modern period is marked by phases of opening up due to the establishment of agro-pastoral activities. Although contemporary anthropisation is poorly identified in the pollen records, geochemical analyses have revealed a significant accumulation of metals (Cu, Pb and Zn) in the surface horizons, probably linked to military activity. Weaker marking at depth could also reflect an older source of contamination. Despite these high metal contents, their mobility seems relatively limited due to their strong affinity with the organic matter of the peat horizons. ; Les tourbières sont des milieux qui assurent de nombreuses fonctions écologiques et patrimoniales essentielles. Le camp militaire de Bitche (Moselle, France), bien qu'actif depuis plus d'un siècle, a permis l'entretien de zones humides aujourd'hui classées sites Natura 2000. A travers l'étude de deux séquences tourbeuses prélevées à l'intérieur du camp, les principaux objectifs de cette étude étaient d'identifier l'empreinte anthropique (notamment militaire) actuelle et passée sur les tourbières et de reconstituer l'histoire de l'environnement végétal. Les datations radiocarbone et l'analyse palynologique ont permis de mettre en évidence les changements environnementaux affectant ...

International audience ; Peatlands are environments that provide many essential ecological and heritage functions. The Bitche military camp (Moselle, France), although active for more than a century, has allowed the maintenance of wetlands that are now classified as Natura 2000 sites. Through the study of two peat sequences collected inside the camp, the main objectives of this study were to identify the current and past anthropic (particularly military) impact on the peatlands and to reconstruct the vegetation history. Radiocarbon dating and palynological analysis enabled the environmental changes affecting the landscape since the Neolithic period to be highlighted. Throughout this period, the area is characterised by a dominant forest environment with the persistence of pine. The modern period is marked by phases of opening up due to the establishment of agro-pastoral activities. Although contemporary anthropisation is poorly identified in the pollen records, geochemical analyses have revealed a significant accumulation of metals (Cu, Pb and Zn) in the surface horizons, probably linked to military activity. Weaker marking at depth could also reflect an older source of contamination. Despite these high metal contents, their mobility seems relatively limited due to their strong affinity with the organic matter of the peat horizons. ; Les tourbières sont des milieux qui assurent de nombreuses fonctions écologiques et patrimoniales essentielles. Le camp militaire de Bitche (Moselle, France), bien qu'actif depuis plus d'un siècle, a permis l'entretien de zones humides aujourd'hui classées sites Natura 2000. A travers l'étude de deux séquences tourbeuses prélevées à l'intérieur du camp, les principaux objectifs de cette étude étaient d'identifier l'empreinte anthropique (notamment militaire) actuelle et passée sur les tourbières et de reconstituer l'histoire de l'environnement végétal. Les datations radiocarbone et l'analyse palynologique ont permis de mettre en évidence les changements environnementaux affectant ...