Julien Bouchez
Content / Work
I am a Critical Zone scientist, with a particular interest and expertise in (isotope) geochemistry. My core research interest is to provide a better understanding of how rock chemical weathering, soil erosion, and river transport shape the Earth surface and drive biogeochemical cycles.Projects
EROSAT
Because of their role in erosion and sediment supply in rivers, gravity instabilities are one of the most important geophysical processes in explainin...
PALAVAS: Present and pAst weathering fLuxes from tropicAl Volcanic islAndS
On the geologic time scale, chemical weathering of silicate rocks is the largest sink for atmospheric CO2. It has been suggested that the weathering o...
TOF-COL
The formation of nano-sized (between 1 nm and 1 µm) particles is one of the most under-constrained processes of soil formation, while their export by ...
Publications
Chen Chen, Gayer Eric, Gaillardet Jérôme, Derry Louis, Louvat Pascale, Bouchez Julien, Jin Zhangdong, Yokochi Reika. Enhanced weathering by multiscale destabilization of volcanic islands. Earth and Planetary Science Letters, Elsevier, December 2025, 671. <10.1016/j.epsl.2025.119649>
López-Urzúa Sofía, Derry Louis, Bouchez Julien. Quantifying the agricultural footprint on the silicon cycle: insights from silicon isotopes and Ge∕Si ratios. Biogeosciences, European Geosciences Union, 24 October 2025, 22. <10.5194/bg-22-6067-2025>
Guillon Sophie, Bouchez Julien, Escoffier Nicolas, Garnier Josette, Henine Hocine, Mouchel Jean-Marie. δ13C, HCO3- and Ca2+ dynamics to assess inorganic carbon production and transport in a small carbonaceous catchment (Orgeval, France). 29 September 2025.
Crapart Camille, Audry Stéphane, Bouchez Camille, Bouchez Julien, Copard Yann, Dessert C., Eyrolle Frederique, Fovet Ophélie, Gandois Laure, Gassama Nathalie, Legout Cédric, Masson Matthieu, Moquet Jean-Sébastien, Némery Julien, Steinmann Marc, Tenailleau Quentin. Specific carbon fluxes in rivers from long-term monitoring. 29 September 2025.
Wang Jinyu, Bouchez Julien, Winnick Matthew, Goodwell Allison, Dere Ashlee, Kumar Praveen, Druhan Jennifer. Drought constrictions on lateral carbon transport. Nature Geoscience, Nature Publishing Group, 26 September 2025, 18. <10.1038/s41561-025-01807-z>
Ke Yutian, Calmels Damien, Bouchez Julien, Noret Aurélie, Massault Marc, Chetelat Benjamin, Cai Hongming, Chen Jiubin, Quantin Cécile, Gaillardet Jérôme. Regulation of Particulate Organic Carbon by Cascade Mega‐Reservoirs in the Changjiang Basin: Enhanced Sequestration and Altered Downstream Composition. Global Biogeochemical Cycles, American Geophysical Union, 11 August 2025, 39. <10.1029/2024GB008479>
Fekiacova-Castanet Zuzana, Heller Beatrix, Guinoiseau Damien, Bouchez Julien, Duvivier Adrien, Cornu Sophie, Guihou Abel, Quantin Cécile, Allard Thierry, Deschamps Pierre, Gautheron Cécile. Past changes of weathering regime in laterites recorded in Fe isotope signal preserved in Fe oxyhydroxides.. 06 July 2025.
Guinoiseau Damien, Bafounga Yensinga, Fekiacova-Castanet Zuzana, Allard Thierry, Ansart Claire, Gautheron Cécile, Bouchez Julien. How to constrain long-term laterite formation using a multi-isotopic approach (Cr, Fe, Li).. 06 July 2025.
Osorio-Leon Ivan, Rempe Daniella, Golla Jon, Bouchez Julien, Druhan Jennifer. Deep Roots Supply Reactivity and Enhance Silicate Weathering in the Bedrock Vadose Zone. AGU Advances, 13 June 2025, 6. <10.1029/2025AV001692>
Henine Hocine, Rivière Agnès, Blanchouin Arnaud, Guillon Sophie, Gaillardet Jérôme, Tournebize Julien, Chaumont Cédric, Dris Rachid, Tassin Bruno, Garnier Josette, Mouchel Jean-Marie, Archaimbault Virginie, Bouchez Julien, de Lavenne Alban, Persat Léo, Guigon Elodie, Bodet Ludovic, Pasquet Sylvain, Quesnel Florence, Audigane Pascal, Le Callonnec Laurence, Clement Remi, Calabro Souza Guilherme, Joly Fatima, Friceau Lucas, Mercier Benjamin, Baudin Aurélien, Lestel Laurence, Thieu Vincent, Gesret Alexandrine, Nespoulet Romane, Cordier Laure, Rabah Amal, Benoit Axel, Mallik Amita, Lebrun Jérémie D.. Oracle-Orgeval, Long-term Research observatory of the critical zone. 28 May 2025, 8. <10.3897/aca.8.e153511>
Ansart C., Guinoiseau D., Quantin C., Calmels D., Gautheron C., Agrinier P., Bouchez J., Fekiacova Z., Pinna-Jamme R., Demri D., Balan E., Heller B., Bollaert Q., Ataytür Ö., Allard T.. Lateritic Cenozoic paleoenvironmental and paleoclimatic conditions in the Central Amazon basin, Brazil, inferred from mineralogy, geochemistry and geochronology. Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier, March 2025, 662. <10.1016/j.palaeo.2024.112674>
Aranda Reina Celia, Bouchez Julien, Druhan Jennifer. Quantifying the impacts of exogenous dust inputs to the critical zone using reactive transport modeling. Geochimica et Cosmochimica Acta, Elsevier, March 2025, 393. <10.1016/j.gca.2025.01.023>
Guertin Andrew, Cunningham Charlie, Bouchez Julien, Gelin Marine, Chorover Jon, Derry Louis, Druhan Jennifer. Maturation of Silicate Weathering Pathways Revealed by Germanium‐Silicon Ratios. Geophysical Research Letters, American Geophysical Union, 2025, 52. <10.1029/2025GL118410>
Hou Yi, Baronas J. Jotautas, Kemeny Preston Cosslett, Bouchez Julien, Geirsdóttir Áslaug, Miller Gifford, Torres Mark. Glacially Enhanced Silicate Weathering Revealed by Holocene Lake Records. Geophysical Research Letters, American Geophysical Union, 2025, 52. <10.1029/2025GL115324>
Rapuc William, Guinoiseau Damien, Arnaud Fabien, Dellinger Mathieu, Sabatier Pierre, Gaillardet Jérôme, Poulenard Jérôme, Bouchez Julien. Human and climate impacts on the alpine Critical Zone over the past 10,000 y. Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2025, 122. <10.1073/pnas.2506030122>
Guertin Andrew, Cunningham Charlie, Bouchez Julien, Gelin Marine, Chorover Jon, Bauser Hannes, Kim Minseok, Troch Peter, Derry Louis, Druhan Jennifer. Stable silicon isotope fractionation reflects the routing of water through a mesoscale hillslope. Earth and Planetary Science Letters, Elsevier, 15 December 2024, 648. <10.1016/j.epsl.2024.119098>
Druhan Jennifer L, Bouchez Julien. Ecological regulation of chemical weathering recorded in rivers. Earth and Planetary Science Letters, Elsevier, 04 June 2024, 641. <10.1016/j.epsl.2024.118800>
Poszwa Anne, Berthier Karine, Štulc Anna Imbert, Hunot Jean-Yves, Bouchez Julien, Ponton Stéphane, Dupouey Jean-Luc, Coubray Sylvie, Beuret Maximilien, Lemoine Michel, Nguyen Tu Thanh Thuy, Dufraisse Alexa. De la forêt à la charpente. Etudier la provenance des bois médiévaux par le croisement des données dendrochronologiques, chimiques / isotopiques, archéologiques et historiques. 22 April 2024.
Ke Yutian, Calmels Damien, Bouchez Julien, Massault Marc, Chetelat Benjamin, Noret Aurélie, Cai Hongming, Chen Jiubin, Gaillardet Jérôme, Quantin Cécile. Channel cross-section heterogeneity of particulate organic carbon transport in the Huanghe. Earth Surface Dynamics, European Geosciences Union, 15 February 2024, 12. <10.5194/esurf-12-347-2024>
Rapuc William, Giguet-Covex Charline, Bouchez Julien, Sabatier Pierre, Gaillardet Jérôme, Jacq Kévin, Genuite Kim, Poulenard Jérôme, Messager Erwan, Arnaud Fabien. Human-triggered magnification of erosion rates in European Alps since the Bronze Age. Nature Communications, Nature Publishing Group, 10 February 2024, 15. <10.1038/s41467-024-45123-3>