Search Results - "Poulenard, J"

Future emergence of new ecosystems caused by glacial retreat by Bosson, J. B., Huss, M., Cauvy-Fraunié, S., Clément, J. C., Costes, G., Fischer, M., Poulenard, J., Arthaud, F.

“…Glacier shrinkage and the development of post-glacial ecosystems related to anthropogenic climate change are some of the fastest ongoing ecosystem shifts, with…”
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New insights on lake sediment DNA from the catchment: importance of taphonomic and analytical issues on the record quality by Giguet-Covex, C., Ficetola, G. F., Walsh, K., Poulenard, J., Bajard, M., Fouinat, L., Sabatier, P., Gielly, L., Messager, E., Develle, A. L., David, F., Taberlet, P., Brisset, E., Guiter, F., Sinet, R., Arnaud, F.

“…Over the last decade, an increasing number of studies have used lake sediment DNA to trace past landscape changes, agricultural activities or human presence…”
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The effect of grass buffer strips on phosphorus dynamics—A critical review and synthesis as a basis for application in agricultural landscapes in France by Dorioz, J.M., Wang, D., Poulenard, J., Trévisan, D.

“…Recommending the use of “grass buffer strips” to control diffuse P transfer has become well accepted among extension advisors, agricultural consultants,…”
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XANES spectroscopy as a tool to trace phosphorus transformation during soil genesis and mountain ecosystem development from lake sediments by Giguet-Covex, C., Poulenard, J., Chalmin, E., Arnaud, F., Rivard, C., Jenny, J.-P., Dorioz, J.-M.

“…The aim of this study is to investigate phosphorus (P) species modifications triggered by soil genesis and mountain ecosystem development after glacial retreat…”
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Climate and vegetation determine soil organic matter status in an alpine inner-tropical soil catena in the Fan Si Pan Mountain, Vietnam by Podwojewski, P., Poulenard, J., Nguyet, Minh Luu, de Rouw, A., Nguyen, Van Thiet, Pham, Quang Ha, Tran, Duc Toan

“…High mountain ecosystems are generally considered to be particularly sensitive to global climate change. Studies of pedogenesis associated with altitudinal…”
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Tracing sediment sources during floods using Diffuse Reflectance Infrared Fourier Transform Spectrometry (DRIFTS): A case study in a highly erosive mountainous catchment (Southern French Alps) by Poulenard, J., Legout, C., Némery, J., Bramorski, J., Navratil, O., Douchin, A., Fanget, B., Perrette, Y., Evrard, O., Esteves, M.

“…► Tracing the origin of suspended matter is one of the main challenges in hydrology. ► We develop a new spectroscopic approach for tracing the sources of…”
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Infrared spectroscopy tracing of sediment sources in a small rural watershed (French Alps) by Poulenard, J., Perrette, Y., Fanget, B., Quetin, P., Trevisan, D., Dorioz, J.M.

“…The present article describes a first attempt to use infrared spectroscopy to trace the origin of suspended river sediments. Fifty samples of the main…”
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Gully and sheet erosion on subtropical mountain slopes: Their respective roles and the scale effect by Descroix, L., González Barrios, J.L., Viramontes, D., Poulenard, J., Anaya, E., Esteves, M., Estrada, J.

“…As most mountains in tropical and subtropical zones, the Western Sierra Madre suffers active present erosion, which may create some constraints to the social…”
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Water repellency of volcanic ash soils from Ecuadorian paramo: effect of water content and characteristics of hydrophobic organic matter by Poulenard, J, Michel, J.C, Bartoli, F, Portal, J.M, Podwojewski, P

“…Summary Water repellency of volcanic ash soils from the Ecuadorian páramo was studied by a combination of extraction and analysis of water‐repellent products,…”
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Polycyclic Aromatic Hydrocarbons in stalagmites: Occurrence and use for analyzing past environments by Perrette, Yves, Poulenard, Jérôme, Saber, Abdel-Ilah, Fanget, Bernard, Guittonneau, Sylvie, Ghaleb, Bassam, Garaudee, Sandrine

“…This article presents a preliminary investigation into the value of Polycyclic Aromatic Hydrocarbons (PAHs) as markers for interpreting past environments in…”
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Overgrazing effects on vegetation cover and properties of volcanic ash soil in the páramo of Llangahua and La Esperanza (Tungurahua, Ecuador) by PODWOJEWSKI, P, POULENARD, J, ZAMBRANA, T, HOFSTEDE, R

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Shrinkage and drainage in aggregates of volcanic soils: a new approach combining mercury porosimetry and vacuum drying kinetics by Poulenard, J., Bartoli, F., Burtin, G.

“…Summary The topsoils of Andisols in the wet high altitude grasslands (páramos) of Ecuador have shrunk after recent changes from permanent grassland to…”
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Wet avalanches: long-term evolution in the Western Alps under climate and human forcing by Fouinat, Laurent, Sabatier, Pierre, David, Fernand, Montet, Xavier, Schoeneich, Philippe, Chaumillon, Eric, Poulenard, Jerome, Arnaud, Fabien

“…Understanding wet avalanche intensity and the role of past environmental changes on wet avalanche occurrence is a main concern especially in the context of a…”
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Past African dust inputs in the western Mediterranean area controlled by the complex interaction between the Intertropical Convergence Zone, the North Atlantic Oscillation, and total solar irradiance by Sabatier, Pierre, Nicolle, Marie, Piot, Christine, Colin, Christophe, Debret, Maxime, Swingedouw, Didier, Perrette, Yves, Bellingery, Marie-Charlotte, Chazeau, Benjamin, Develle, Anne-Lise, Leblanc, Maxime, Skonieczny, Charlotte, Copard, Yoann, Reyss, Jean-Louis, Malet, Emmanuel, Jouffroy-Bapicot, Isabelle, Kelner, Maëlle, Poulenard, Jérôme, Didier, Julien, Arnaud, Fabien, Vannière, Boris

“…North Africa is the largest source of mineral dust on Earth, which has multiple impacts on the climate system; however, our understanding of decadal to…”
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Determining soil sources by organic matter EPR fingerprints in two modern speleothems by Perrette, Yves, Poulenard, Jérôme, Protière, Myriam, Fanget, Bernard, Lombard, Christian, Miège, Cécile, Quiers, Marine, Nafferchoux, Emmanuel, Pépin-Donat, Brigitte

“…•Semiquinone-type radicals EPR spectra are used to assign natural organic matter.•EPR signatures discriminate OM sources between soil types and soil…”
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A new CT scan methodology to characterize a small aggregation gravel clast contained in a soft sediment matrix by Fouinat, Laurent, Sabatier, Pierre, Poulenard, Jereme, Reyss, Jean-Louis, Montet, Xavier, Arnaud, Fabien

“…Over the past decades, X-ray computed tomography (CT) has been increasingly applied in the geosciences community. CT scanning is a rapid, non-destructive…”
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Tracing sediment sources during floods using Diffuse Reflectance Infrared Fourier Transform Spectrometry (DRIFTS): A case study in a highly erosive mountainous catchment (Southern French Alps) by POULENARD, J, LEGOUT, C, NEMERY, J, BRAMORSKI, J, NAVRATIL, O, DOUCHIN, A, FANGET, B, PERRETTE, Y, EVRARD, O, ESTEVES, M

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Characteristics of non-allophanic Andisols with hydric properties from the Ecuadorian páramos by Poulenard, Jérôme, Podwojewski, Pascal, Herbillon, Adrien Jules

“…So far, the occurrence of hydric properties (i.e. water retention values at 1500 kPa matrix potential larger than 1000 g kg −1) has generally been reported in…”
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Runoff and soil erosion under rainfall simulation of Andisols from the Ecuadorian Páramo: effect of tillage and burning by Poulenard, Jérôme, Podwojewski, Pascal, Janeau, Jean-Louis, Collinet, Jean

“…In northern Ecuador, soils of high altitude grasslands ( páramos) are mainly non-allophanic Andisols developed on Holocenic volcanic ash. These soils have a…”
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Gully and sheet erosion on subtropical mountain slopes : their respective roles and the scale effect by Descroix, Luc, González Barrios, Jose Luis, Viramontes, D., Poulenard, J., Anaya, E., Esteves, Michel, Estrada, J.

“…As most mountains in tropical and subtropical zones, the Western Sierra Madre suffers active present erosion, which may create some constraints to the social…”
Get full text