Christian VALENTIN

PhD, HDR, Emeritus Soil Scientist, DR IRD

Member of the French Academy of Agriculture

Address: 32 av. H. Varagnat, 93143 Bondy cedex, FRANCE

Phone: +33 (0)6 43 67 87 22

Email: christian.valentin|DONTWANTSPAM|@ird.fr

Main fields of research and expertise

Christian Valentin, agronomist by training, PhD and HDR in soil science, gained over 40 years of experience in conducting and coordinating interdisciplinary research in ORSTOM and IRD, in soil erosion, agronomy, hydrology and ecology, mainly in West Africa and Southeast Asia. His publishing credits (h-index WoS = 38) include more than 100 articles in refereed journals.

Selected publications

2018-2020

Song, L., Boithias, L., Sengtaheuanghoung, O., Oeurng, C., Valentin, C., Souksavath, B., Sounyafong, P., De Rouw, A., Soulileuth, B., Silvera, N. and Lattanavongkot, B., 2020. Understory Limits Surface Runoff and Soil Loss in Teak Tree Plantations of Northern Lao PDR. Water12(9), p.2327.

Tafasca, S., Ducharne, A. and Valentin, C., 2020. Weak sensitivity of the terrestrial water budget to global soil texture maps in the ORCHIDEE land surface model. Hydrology and Earth System Sciences24(7), pp.3753-3774.

Mai H., Maeght J. L., Bui V. H., Valentin C. Assessment of heavy metal concentrations and its potential eco-toxic effects in soils and sediments in Dong Cao catchment, Northern Vietnam. Vietnam Journal of Earth Sciences, 2020, 42 (2), p. 187-204. ISSN 0866-7187

Neyret, M., de Rouw, A., Colbach, N., Robain, H., Soulileuth, B. and Valentin, C., 2020. Year-to-year crop shifts promote weed diversity in tropical permanent rainfed cultivation. Agriculture, Ecosystems & Environment301, p.107023.

Neyret, M., Robain, H., De Rouw, A., Janeau, J.L., Durand, T., Kaewthip, J., Trisophon, K. and Valentin, C., 2020. Higher runoff and soil detachment in rubber tree plantations compared to annual cultivation is mitigated by ground cover in steep mountainous Thailand. Catena189, p.104472.

Pellerin S., Lelievre V., Arnaud F., Cécillon L., Dia A., Valentin C. Regards sur la recherche française en Sciences du sol à partir d’une analyse bibliométrique : points forts, points faibles et tendances récentes. Étude et Gestion des Sols, 2019, 26 (1), p. 49-63. ISSN 1252-6851

Sabrié, Marie-Lise, et al. Science et développement durable: 75 ans de recherche au Sud. 2019.

Roupsard O., Allinne C., Van den Meersche K., Vaast P., Rapidel B., Avelino J., Jourdan C., Le Maire G., Bonnefond J.M., Harmand J.M., Dauzat J., Albrecht A., Chevallier T., Barthès B., Rocheteau A., Do F., Valentin C., et al. Suivi des services écosytémiques dans un observatoire de caféiers agroforestiers : recommandations pour la filière du café. In : Seghieri Josiane (coord.), Harmand J.M. (coord.). Agroforesterie et services écosystémiques en zone tropicale : recherche de compromis entre services d’approvisionnement et autres services écosystémiques. Versailles : Quae, 2019, p. 37-55. (Update Sciences et Technologies). ISBN 978-2-7592-3059-4

Mügler, C., Ribolzi, O., Janeau, J.L., Rochelle-Newall, E., Latsachack, K., Thammahacksa, C., Viguier, M., Jardé, E., Henri-Des-Tureaux, T., Sengtaheuanghoung, O. and Valentin, C., 2019. Experimental and modelling evidence of short-term effect of raindrop impact on hydraulic conductivity and overland flow intensity. Journal of Hydrology570, pp.401-410.

Valentin Christian, Rajot Jean-Louis. Erosion and principles of soil conservation. In : Valentin Christian (ed.). Soils as a key component of the critical zone 5 : degradation and rehabilitation. Londres : ISTE, Wiley, 2018, p. 39-82. (Geosciences Series. Soils Set ; 5). ISBN 978-1-78630-219-9

Valentin Christian. The state and future of soils. In : Valentin Christian (ed.). Soils as a key component of the critical zone 5 : degradation and rehabilitation. Londres : ISTE, Wiley, 2018, p. 1-19. (Geosciences Series. Soils Set ; 5). ISBN 978-1-78630-219-9

Valentin Christian (ed.). Soils as a key component of the critical zone 5 : degradation and rehabilitation. Londres : ISTE, Wiley, 2018, 264 p. (Geosciences Series. Soils Set ; 5). ISBN 978-1-78630-219-9

Gaillardet, Jerome, et al. “OZCAR: The French network of critical zone observatories.” Vadose Zone Journal 17.1 (2018): 1-24.

Ribolzi, O., Lacombe, G., Pierret, A., Robain, H., Sounyafong, P., De Rouw, A., Soulileuth, B., Mouche, E., Huon, S., Silvera, N. and Latxachak, K.O., 2018. Interacting land use and soil surface dynamics control groundwater outflow in a montane catchment of the lower Mekong basin. Agriculture, Ecosystems & Environment, 268, pp.90-102.

Neyret, M., Robain, H., De Rouw, A., Soulileuth, B., Trisophon, K., Jumpa, K. and Valentin, C., 2018. The transition from arable lands to rubber tree plantations in northern Thailand impacts weed assemblages and soil physical properties. Soil use and management, 34(3), pp.404-417.

Berthelin J. ; Bourrié G. ; Girard M.C. ; Dhérissard G. ; Valentin C. Soils as a key component of the critical zone. In : Berthelin J. (ed.), Valentin Christian (ed.), Munch J.C. (ed.). Soils as a key component of the critical zone 1 : functions and services. Londres (GBR), Hoboken : ISTE, Wiley, 2018, p. 1-33. (Environmental Sciences : Soils Set ; 1). ISBN 978-1-78630-215-1

Berthelin J. (ed.), Valentin C. (ed.), Munch J.C. (ed.). Soils as a key component of the critical zone 1 : functions and services. Londres (GBR), Hoboken : ISTE, Wiley, 2018, 336 p. (Environmental Sciences : Soils Set ; 1). ISBN 978-1-78630-215-1

Patin, J., Mouche, E., Ribolzi, O., Sengtahevanghoung, O., Latsachak, K.O., Soulileuth, B., Chaplot, V. and Valentin, C., 2018. Effect of land use on interrill erosion in a montane catchment of Northern Laos: An analysis based on a pluri-annual runoff and soil loss database. Journal of hydrology, 563, pp.480-494.

Malam Issa Oumarou, Hauswirth D., Jourdain D., Orange Didier, Duteurtre G., Valentin Christian. Ethical questions associated with research on soil-based ecosystem services. In : Moulin A.M. (dir.), Oupathana B. (dir.), Souphanthong M. (dir.), Taverne Bernard (dir.). The paths of ethics in research in Laos and the Mekong countries : health, environment, societies. Dakar (SEN), Marseille : L’Harmattan-Sénégal, IRD, 2018, p. 111-116. ISBN 978-2-343-14165-7, 978-2-7099-2624-9 Ethics in Research for International Development : Health, Environment, Societies : Colloquium, 2015/10/26-27, Vientiane

Lacombe, G., Valentin, C., Sounyafong, P., De Rouw, A., Soulileuth, B., Silvera, N., Pierret, A., Sengtaheuanghoung, O. and Ribolzi, O., 2018. Linking crop structure, throughfall, soil surface conditions, runoff and soil detachment: 10 land uses analyzed in Northern Laos. Science of the Total Environment, 616, pp.1330-1338.

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