Address : FARE lab, INRAE, URCA, 2 esplanade Roland-Garros, 51100 Reims, France
Phone : +33 (0)3 26 77 35 82
Fax : +33 (0)3 26 77 35 99
Mail. : email@example.com
2010- Research scientist at INRAE (French National Research Institute for Agriculture, Food and Environment ), UMR INRA-URCA FARE, Reims, France
2006-2010: PhD student at ADEME (French Environment and Energy Management Agency) -INRA, UMR INRA-AgroParisTech, Thiverval –Grignon, France
2005-2006: Research engineer at ADEME-INRA, UMR INRA-AgroParisTech EGC, Thiverval –Grignon, France
2005: Master student, UR INRA of Agronomy, Laon-Reims-Mons, and UMR INRA-AgroParisTech EGC, Thiverval –Grignon, France
2004: Undergraduate student, Agro Sans Frontière, Rennes, field in Senegal
2003: Undergraduate student, Department of Ecology and Evolutionary Biology, SUNY, Stony Brook, USA, field in Costa Rica
2010: Doctor of Philosophy (Ph. D.) in environmental sciences, Doctoral School ABIES of AgroParisTech
2005: Master of Engineering in Agronomy, National Higher Agronomic School of Rennes (ENSAR), France
2003-2004: Optional undergraduate training period abroad
Processes: biological transformations of organic matters (soils, mulch, composting, retting). Interactions between lignocellulosic substrates and microorganisms. Interactions between organic pollutants and organic matter. C storage, organic matter mineralization.
Modeling: EEZY, GDM, CANTIS, COP-Compost, “residue” module of STICS, RothC, “RETTING” module, etc.
Experiment: enzyme assays, experimental devices, microcosms, respirometry, biochemical analyses (residues, organic wastes), organic pollutant speciation, isotopic labeling (14C), fungal growth.
Statistics: indicator and typology calibration of degradation behavior
My research activities concern the modeling of the biodegradation processes of lignocellulosic substrates (crop residues, roots, forest litter) in soils or at their surface. Their aim is to improve our understanding of the interactions between microorganisms and their decomposing substrates and the representation of these interactions in numerical models. I am particularly interested in the microbial physiological and enzymatic responses in function of the chemical and physical traits of organic substrates. Timescales vary between days and years and spatial scale are fine (µm3 au cm3). The issues are to better understand decomposition process in order to be able to better integrate nutrients recycling in agroecosystems management and better predict organic matter stabilization and C storage in soils.
See also Sylvie Recous, Hugues Clivot scientists in the same lab for further information about our activities.
Since 2015- Agronomy module (Master of agro-resource production and sustainable development, URCA): Introduction to agronomy and agronomic models, Effects of crop system on their environment.
Since 2015- Module of Soil and Environment (Master of Sciences, Technologies, Health, URCA): Soil organic matter and C, N, P, S biogeochemical cycles, decomposition process.
2012-2013-Module of soil organic matter and waste management (Master of continental biosphere and soils, AgroParisTech, UPMC, Doctoral School ABIES): Coupling of biogeochemical cycles of C, N, P, S in soils.
2009- Ecosystems of food and water module (Master of applied microbiology and biological engineering, AgroParisTech): Technologies and microbiology of composts.
2008-2009- Bio-depollution module (Engineering in agronomy, 2nd year, AgroParisTech): Fate of pollutants during composting and in soils.
Lashermes, G., Bleuze, L., Recous, S., Voinot, R., Lafolie, F., Chabbert, B. (2020) Multiscale modeling of microbial degradation of outer tissues of fiber-crop stems during the dew retting process. Bioresource Technology 311, 123558. DOI
Bleuze, L., Chabbert, B., Lashermes, G, Recous, S. (2020) Hemp harvest time impacts on the dynamics of microbial colonization and hemp stems degradation during dew retting. Industrial Crops and Products, 145, 112122. DOI. FARE Web
Margida M.G., Lashermes G., Moorhead D.L. (2020). Estimating relative cellulolytic and ligninolytic enzyme activities as functions of lignin and cellulose content in decomposing plant litter. Soil Biology and Biochemistry 141, 107689. DOI. FARE Web
Recous S., Lashermes G., Bertrand I., Duru M., Pellerin S. (2019). C-N-P decoupling processes linked to arable cropping management systems in relation with intensification of production. In: Agro-ecosystem Diversity: Reconciling Contemporary Agriculture and Environment Quality, Gilles Lemaire, Paulo Carvalho, Scott Kronberg & Sylvie Recous eds., Elsevier. Chapitre 3, pp 35-53. DOI. FARE Web
Bleuze L, Lashermes G, Alavoine G, Recous S, Chabbert B. (2018) Tracking the dynamics of hemp dew retting under controlled environmental conditions. Industrial Crops and Products 123, 55-63. DOI. FARE Web
Sauvadet M, Lashermes G, Alavoine G, Recous S, Chauvat M, Maron PA, Bertrand I (2018). High carbon use efficiency and low priming effect promote soil C stabilization under reduced tillage. Soil Biology and Biochemistry, 64–73. DOI. FARE Web
Dignac, M.-F., Derrien, D., Barre, P., Barot, S., Cécillon, L., Chenu, C., Chevallier, T., Freschet, G., Garnier, P., Guenet, B., Hedde, M., Klumpp, K., Lashermes, G., Maron, P.-A., Nunan, N., Roumet, C., Basile-Doelsch, I. (2017). Increasing soil carbon storage: mechanisms, effects of agricultural practices and proxies. A review. Agronomy for Sustainable Development, 37:14 (2).DOI . FARE Web
Lashermes G, Gainvors-Claisse A, Recous S and Bertrand I (2016) Enzymatic Strategies and Carbon Use Efﬁciency of a Litter-Decomposing Fungus Grown on Maize Leaves, Stems, and Roots. Frontiers in Microbiology 7:1315. DOI
Moorhead D.L.*, Lashermes, G*, Recous, S., Bertrand, I. (2014) Interacting Microbe and Litter Quality Controls on Litter Decomposition: A Modeling Analysis. Plos One, 9 (9). *co-first authors. DOI
Iqbal, A., Garnier, P., Lashermes, G., Recous, S. (2014) A new equation to simulate the contact between soil and maize residues of different sizes during their decomposition. Biology and Fertility of Soils, 50, 645-655. DOI
Geng, C., Haudin, C.-S., Zhang, Y., Lashermes, G., Houot, S., Garnier, P. (2015) Modeling the release of organic contaminants during compost decomposition in soil. Chemosphere, 119, 423-431. DOI
Zhang, Y., Lashermes, G., Houot, S., Zhu, Y., Barriuso, E., Garnier, P. (2014) COP-compost: a software to study the degradation of organic pollutants in composts. Environmental Science and Pollution Research, 21 (4), 2761-2776. DOI
Moorhead, D.L., Lashermes, G., Sinsabaugh R.L., Weintraub, M.N., 2013. Calculating co-metabolic costs of lignin decay and their impacts on carbon use efﬁciency. Soil Biology & Biochemistry, 66, 17-19. DOI
Haudin, C.S., Zhang, Y., Dumény V., Lashermes, G., Bergheaud, V., Barriuso, E., Houot, S., 2013. Fate of 14C-organic pollutant residues in composted sludge after application to soil. Chemosphere, 92, 1280-1285. DOI
Lashermes, G., Zhang, Y., Houot, S., Steyer, J.P., Patureau, D., Barriuso, E., Garnier, P. 2013. Simulation of organic matter and pollutant evolution during composting: the COP-Compost model. Journal of Environmental Quality, 42, 1-12 (Open Access). DOI
Moorhead, D.L., Lashermes, G.,Sinsabaugh, R.L., 2012. A theoretical model of C- and N-acquiring exoenzyme activities, which balances microbial demands during decomposition. Soil Biology &Biochemistry, 53, 133-141. DOI
Zhang, Y., Lashermes, G.,Houot, S., Doublet, J., Steyer, J.P., Zhu, Y.G., Barriuso, E., Garnier, P., 2012. Modelling of organic matter dynamic during the composting process. Waste Management, 32, 19-30. DOI
Lashermes, G., Barriuso, E., Le Villio-Poitrenaud, M., Houot, S. 2012. Composting in small laboratory pilots: performance and reproducibility. Waste Management, 32, 271-277. DOI
Lashermes G., Houot S., Barriuso E., 2012. Dissipation pathways of organic pollutants during the composting of organic waste. Chemosphere, 87, 137-143. DOI
Lashermes G., Houot S., Barriuso E., 2010. Sorption and mineralization of organic pollutants during different stages of composting. Chemosphere, 79, 455-462. DOI
Lashermes G., Nicolardot B., Parnaudeau V., Thuriès L., Chaussod R., Guillotin M.L., Linères M., Mary B., Metzger L., Morvan T., Tricaud A., Villette C., Houot S., 2010. Typology of exogenous organic matters based on chemical and biochemical composition to predict potential nitrogen mineralization. Bioresource Technology, 101, 157-164. DOI
Lashermes G., Nicolardot B., Parnaudeau V., Thuriès L., Chaussod R., Guillotin M.L., Linères M., Mary B., Metzger L., Morvan T., Tricaud A., Villette C., Houot S., 2009. Indicator of potential residual carbon in soils after exogenous organic matter application. European Journal of Soil Science, 60, 297-310. DOI
Graduate students co-directed
A. Iqbal (2010-2013). Effects of nature and decomposition of crops residue mulches on the services provided by soils in conservation agriculture: University of Reims Champagne-Ardenne.
L. Bleuze (2015-2018). Study and modeling of the retting process of fibrous plant. Université de Reims-Champagne Ardenne. Awards of Académie d'Agriculture Dufrenoy silver medal (FARE Web).
V. Chandra (2018-2021). Gaseous nitrogen emissions from decomposing crop residues: experimental and modelling approaches. Université Pierre et Marie Curie - Sorbonne Universités. FARE and ECOSYS labs.
C. Jacqueton (2018-2021). Collect and valorization ‘Open Science’ of data on plant litters decomposition in soils. Engineer in Apprenticeship from ISARA.