Jérôme Poulenard
Biographic Data
| ID | 2738743 |
|---|---|
| NAME | Jérôme Poulenard |
| GIVEN NAMES | Jérôme |
| FAMILY NAME | Poulenard |
| SIGNATURE | POULENARD J |
| AFFILIATIONS | Centre National de la Recherche Scientifique |
| ORCID | 0000-0003-0810-0308 |
| VERIFIED | Yes |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 16 |
| AUTHOR COUNT | 10 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1996 |
| LATEST PUBLICATION YEAR | 2021 |
| H-INDEX | 2 |
Paravani, a puzzling lake in the South Caucasus
Legacy of early anthropogenic effects on recent lake eutrophication (Lake Bénit, northern French Alps)
One thousand seven hundred years of interaction between glacial activity and flood frequency in proglacial Lake Muzelle (western French Alps)
Local glacial fluctuations and flood occurrences were investigated in the sediment sequence of proglacial Lake Muzelle. Based on geochemical analysis and organic matter content established using loss on ignition and reflectance spectroscopy, we identified six periods of increased glacial activity over the last 1700 yr. Each is in accordance with records from reference glaciers in the Alps. A total of 255 graded layers were identified and interpre…
Soils of Mountainous Landscapes
Unlike many other soils, mountain soils often are subjected to strong hillslope processes that distinctly affect their properties. At unstable sites, erosion and other mass movements lead to a continuous rejuvenation of the soil. Under such circumstances weathering rates are kept at high levels, as new parent material is intermittently exposed, leading to the development of a shallow soil cover. Mountain soils are highly dynamic systems that may …
Erosion record in Lake La Thuile sediments (Prealps, France)
Lake La Thuile, in the Northern French Prealps (874 m a.s.l.), provides an 18-m long sedimentary sequence spanning the entire Lateglacial/Holocene period. The high-resolution multi-proxy (sedimentological, palynological, and geochemical) analysis of the uppermost 6.2 m reveals the Holocene dynamics of erosion in the catchment in response to landscape modifications. The mountain belt is at relevant altitude to study past human activities, and the …
Non-reversible geosystem destabilisation at 4200 cal. BP
A 144-cm-long core was obtained in Lake Petit (2200 m a.s.l., Mediterranean French Alps) in order to reconstruct past interactions between humans, the environment and the climate over the last five millennia using a multidisciplinary approach involving sedimentological, geochemical and botanical analyses. We show a complex pattern of environmental transformation. From 4800 to 4200 cal. BP, podzol-type soils progressively developed under forest co…
Frequency and intensity of high-altitude floods over the last 3.5 ka in northwestern French Alps (Lake Anterne)
In central Western Europe, several studies have shown that colder Holocene periods, such as the Little Ice Age, also correspond to wet periods. However, in mountain areas which are highly sensitive to erosion processes and where precipitation events can be localized, past evolution of hydrological activity might be more complicated. To assess these past hydrological changes, a paleolimnological approach was applied on a 13.4-m-long sediment core …
Changes in erosion patterns during the Holocene in a currently treeless subalpine catchment inferred from lake sediment geochemistry (Lake Anterne, 2063 m a.s.l., NW French Alps)
A high-resolution sedimentological and geochemical study was performed on a 20 m long core from the alpine Lake Anterne (2063 m a.s.l., NW French Alps) spanning the last 10 ka. Sedimentation is mainly of minerogenic origin. The organic matter quantity (TOC%) as well as its quality (hydrogen (HI) and oxygen (OI) indices) both indicate the progressive onset and subsequent stabilization of vegetation cover in the catchment from 9950 to 5550 cal. BP.…
Quito face à un risque d'origine naturelle
The 31st of March 1997 a debris flow seriously affected the quebrada La Comunidad and. Morpho-hydro-climatic studies done after this event showed that extreme rainfall storms was the main factor to explain these phenomenons, it is evident that the morphology of the catchment, and particularly the longitudinal profile, played a fundamental part in the generation of debris flows. These events seem preferentially take place in the small catchments, …
Surpâturage et formation de terrassettes sur les versants de la Sierra Madre Occidentale (Nord-ouest du Mexique) / Overgrazing and the development of small terraces on the slopes of the western Sierra…
Surpâturage et formation de terrassettes sur les versants de la Sierra Madré occidentale (Nord-Ouest du Mexique) Overgrazing and the development of small terraces on the slopes of the western Sierra Madre (North-West Mexico) J. PoulenardL. Descroix, J-L. Janeau Resume : Les terrassettes sur les versants des secteurs d'alpages sont en général attribuées au surpâturage. Celui-ci a façonné de nombreux versants du Haut Bassin du Rio Nazas, dans la Si…
Erosion record in Lake La Thuile sediments (Prealps, France)
Lake La Thuile, in the Northern French Prealps (874 m a.s.l.), provides an 18-m long sedimentary sequence spanning the entire Lateglacial/Holocene period. The high-resolution multi-proxy (sedimentological, palynological, and geochemical) analysis of the uppermost 6.2 m reveals the Holocene dynamics of erosion in the catchment in response to landscape modifications. The mountain belt is at relevant altitude to study past human activities, and the …
Non-reversible geosystem destabilisation at 4200 cal. BP
A 144-cm-long core was obtained in Lake Petit (2200 m a.s.l., Mediterranean French Alps) in order to reconstruct past interactions between humans, the environment and the climate over the last five millennia using a multidisciplinary approach involving sedimentological, geochemical and botanical analyses. We show a complex pattern of environmental transformation. From 4800 to 4200 cal. BP, podzol-type soils progressively developed under forest co…
Quito face à un risque d'origine naturelle
The 31st of March 1997 a debris flow seriously affected the quebrada La Comunidad and. Morpho-hydro-climatic studies done after this event showed that extreme rainfall storms was the main factor to explain these phenomenons, it is evident that the morphology of the catchment, and particularly the longitudinal profile, played a fundamental part in the generation of debris flows. These events seem preferentially take place in the small catchments, …
Surpâturage et formation de terrassettes sur les versants de la Sierra Madre Occidentale (Nord-ouest du Mexique) / Overgrazing and the development of small terraces on the slopes of the western Sierra…
Surpâturage et formation de terrassettes sur les versants de la Sierra Madré occidentale (Nord-Ouest du Mexique) Overgrazing and the development of small terraces on the slopes of the western Sierra Madre (North-West Mexico) J. PoulenardL. Descroix, J-L. Janeau Resume : Les terrassettes sur les versants des secteurs d'alpages sont en général attribuées au surpâturage. Celui-ci a façonné de nombreux versants du Haut Bassin du Rio Nazas, dans la Si…
Quito face à un risque d'origine naturelle
The 31st of March 1997 a debris flow seriously affected the quebrada La Comunidad and. Morpho-hydro-climatic studies done after this event showed that extreme rainfall storms was the main factor to explain these phenomenons, it is evident that the morphology of the catchment, and particularly the longitudinal profile, played a fundamental part in the generation of debris flows. These events seem preferentially take place in the small catchments, …
Changes in erosion patterns during the Holocene in a currently treeless subalpine catchment inferred from lake sediment geochemistry (Lake Anterne, 2063 m a.s.l., NW French Alps)
A high-resolution sedimentological and geochemical study was performed on a 20 m long core from the alpine Lake Anterne (2063 m a.s.l., NW French Alps) spanning the last 10 ka. Sedimentation is mainly of minerogenic origin. The organic matter quantity (TOC%) as well as its quality (hydrogen (HI) and oxygen (OI) indices) both indicate the progressive onset and subsequent stabilization of vegetation cover in the catchment from 9950 to 5550 cal. BP.…
Frequency and intensity of high-altitude floods over the last 3.5 ka in northwestern French Alps (Lake Anterne)
In central Western Europe, several studies have shown that colder Holocene periods, such as the Little Ice Age, also correspond to wet periods. However, in mountain areas which are highly sensitive to erosion processes and where precipitation events can be localized, past evolution of hydrological activity might be more complicated. To assess these past hydrological changes, a paleolimnological approach was applied on a 13.4-m-long sediment core …
Non-reversible geosystem destabilisation at 4200 cal. BP
A 144-cm-long core was obtained in Lake Petit (2200 m a.s.l., Mediterranean French Alps) in order to reconstruct past interactions between humans, the environment and the climate over the last five millennia using a multidisciplinary approach involving sedimentological, geochemical and botanical analyses. We show a complex pattern of environmental transformation. From 4800 to 4200 cal. BP, podzol-type soils progressively developed under forest co…
Erosion record in Lake La Thuile sediments (Prealps, France)
Lake La Thuile, in the Northern French Prealps (874 m a.s.l.), provides an 18-m long sedimentary sequence spanning the entire Lateglacial/Holocene period. The high-resolution multi-proxy (sedimentological, palynological, and geochemical) analysis of the uppermost 6.2 m reveals the Holocene dynamics of erosion in the catchment in response to landscape modifications. The mountain belt is at relevant altitude to study past human activities, and the …
Soils of Mountainous Landscapes
Unlike many other soils, mountain soils often are subjected to strong hillslope processes that distinctly affect their properties. At unstable sites, erosion and other mass movements lead to a continuous rejuvenation of the soil. Under such circumstances weathering rates are kept at high levels, as new parent material is intermittently exposed, leading to the development of a shallow soil cover. Mountain soils are highly dynamic systems that may …
One thousand seven hundred years of interaction between glacial activity and flood frequency in proglacial Lake Muzelle (western French Alps)
Local glacial fluctuations and flood occurrences were investigated in the sediment sequence of proglacial Lake Muzelle. Based on geochemical analysis and organic matter content established using loss on ignition and reflectance spectroscopy, we identified six periods of increased glacial activity over the last 1700 yr. Each is in accordance with records from reference glaciers in the Alps. A total of 255 graded layers were identified and interpre…
Legacy of early anthropogenic effects on recent lake eutrophication (Lake Bénit, northern French Alps)
Paravani, a puzzling lake in the South Caucasus
Geography (8 works) · Geology and Paleoclimatology Research (8 works) · Physical geography (7 works) · Erosion (6 works) · Geomorphology (6 works) · Geology (5 works) · Holocene (5 works) · Oceanography (5 works) · Sediment (5 works) · Ecology (4 works)