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Études multi-échelles du fonctionnement des écosystèmes

L'équipe EcoFun rassemble des compétences en écologie fonctionnelle, écophysiologie, géochimie isotopique, télédétection, biométéorologie et éco-hydrologie. Nos recherches visent à mieux comprendre les réponses physiologiques et l'adaptation à court et long terme des écosystèmes terrestres aux changements environnementaux, aux modes de gestion et aux événements climatiques extrêmes. Nous sommes particulièrement intéressés à comprendre quelles seront les répercussions du changement climatique sur la productivité des forêts, et plus généralement sur les bilans d'eau, de CO₂ et d'énergie à la surface de la Terre.

Animateur : Jérôme Ogée

Gestionnaires : Patricia Braconnier et Valérie Savornin (ERC)

Quelques publication récentes

1. Sur le suivi déforestation par télédétection

Qin Yuanwei, Xiao Xiangming, Wigneron J.-P., Ciais Ph., Brandt M. et al. (2021) Carbon loss from forest degradation exceeds that from deforestation in the Brazilian Amazon. Nature Climate Change, 11 (5), pp. 442-448. https://www.doi.org/10.1038/s41558-021-01026-5.

Ygorra B., Frappart F., Wigneron J.-P., Moisy Ch., Catry Th. et al. (2021) Monitoring loss of tropical forest cover from Sentinel-1 time-series: A CuSum-based approach. International Journal of Applied Earth Observation and Geoinformation, 103, pp. 1-19, https://www.doi.org/10.1016/j.jag.2021.102532.

1. Sur la vulnérabilité et dépérissement des forêts aux sécheresses estivales

Domec J.-C.; King J.S., Carmichael M., Treado Overby A., Wortermann R., Smith W.K., Mia Guofang., Noormets A., Johnson, D. (2021) Aquaporins, and not changes in root structure, provide new insights into physiological responses to drought, flooding, and salinity. Journal of Experimental Botany, 72, 4489–4501, https://doi.org/10.1093/jxb/erab100.

Liyang Liu, Xiuzhi Chen, Philippe Ciais, Wenping Yuan, Fabienne Maignan et al. (2021) Tropical tall forests are more sensitive and vulnerable to drought than short forests. Global Change Biology, https://www.doi.org/10.1111/gcb.16017.

McCulloh K., Domec JC, Johnson D.M., Smith D.D., Meinzer F.C. (2019) A dynamic yet vulnerable pipeline: Integration and coordination of hydraulic traits across whole plants. Plant, Cell & Environment, 42, 2789-2807, https://www.doi.org/10.1111/pce.13607.

Mrad A., Johnson D., Love D., Domec J.-C. (2021) The roles of conduit redundancy and connectivity in xylem hydraulic functions. New Phytologist, 231, 996-1007, https://doi.org/10.1111/nph.17429.

Preisler Y., Tatarinov F., Grünzweig J.M., Bert D., Ogée J., Wingate L., Rotenberg E., Rohatyn S., Her N., Klein T., Yakir D. (2019) Mortality versus survival in a drought-affected Aleppo pine forest depends on the extent of rock cover and soil stoniness. Functional Ecology, 33, 901-912.

1. Sur l’impact des forêts sur le cycle de l’eau

Aguilos M., Sun G., Noormets A., Domec J.-C., McNulty S., Minick K., Mitra B., Prajapati P., Gavazzi M., King J.S. (2021) Effects of land use change and drought on decadal water balance and evapotranspiration of natural and managed forested wetlands along the southeastern US lower coastal plain. Agricultural and Forest Meteorology, 303, 108381, https://doi.org/10.1016/j.agrformet.2021.108381.

Barbeta A., Burlett, R., Martin-Gomez, P., Frejaville, B., Devert, N., Wingate, L., Domec, J-C, Ogée, J. (2021) Evidence for distinct isotopic composition of sap and tissue water in tree stems: consequences for plant water source identification. New Phytologist, https://doi.org/10.1111/nph.17857.

Boggs J. L., Sun G., Domec J-C., and McNulty S.G. (2021) Variability of tree transpiration across in a southeastern U.S. Piedmont watershed. Hydrological Processes, 35(10), 932, e14389, https://doi.org/10.1002/hyp.14389.

Poyatos, R., (…), Domec, J.-C., Wingate L., et al. (2021) Global transpiration data from sap flow measurements: the SAPFLUXNET database. Earth Syst. Sci. Data, 13, 2607–2649, https://doi.org/10.5194/essd-13-2607-2021.

Gennaretti F., Ogée J., Sainte-Marie J. & Cuntz M. (2020) Mining ecophysiological responses of European beech ecosystems to drought. Agricultural and Forest Meteorology, 280, 107780.

1. Sur la productivité des forêts mondiales

Hui Yang, Philippe Ciais, Yilong Wang, Yuanyuan Huang, Wigneron J.-P. et al. (2021) Variations of carbon allocation and turnover time across tropical forests. Global Ecology and Biogeography, 30 (6), pp. 1271-1285, https://www.doi.org/10.1111/geb.13302.

Lei Fan, Wigneron J.-P., Philippe Ciais, Jérôme Chave, Martin Brandt et al. (2019) Satellite-observed pantropical carbon dynamics. Nature Plants, 5 (9), pp. 944-951, https://doi.org/10.1038/s41477-019-0478-9.

1. Sur les échanges d’énergie et de matière entre les canopées végétales et l’atmosphère

Brunet Y. (2021) Turbulent flow in plant canopies: historical perspective and overview. Boundary-Layer Meteorology, pp.1-46. https://www.doi.org/10.1007/s10546-020-00560-7.

De Frenne P, Lenoir J, Luoto M, Scheffers BR, Zellweger F, … Ogée J. et al. (2021) Forest microclimates and climate change: Importance, drivers and future research agenda. Global Change Biology, 27, 2279-2297, https://www.doi.org/10.1111/gcb.15569.