Max Planck Gesellschaft

Plant Allocation

Group members: (top row) Jianbei Huang, Gabriela Pereira, Bjoern Lorenz, Henrik Hartmann, (bottom row) Waldemar Ziegler, Lenka Forkelova, Savoyane Lambert, Iris Kuhlmann



Mission
Focus area
Staff/Team
Projects
Publications


Mission

Sessile organisms like plants face particular challenges under rapidly changing environmental conditions because they generally cannot escape by migration, at least not within the life span of an individual. Plants require very efficient mechanisms to resist or avoid harsh environmental conditions. Although many conceptual models have been developed for how plants allocate resources most efficiently, the empirical basis for plant resource partitioning is still poor. The Plant Allocation Group has been using manipulative experiments to induce severe resource limitation as a means to gain profound insight into plant functioning.

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Focus Area

Our research is centered on plant responses to climate extremes like drought but also on plant resource partitioning during periods of general stress. In particular, we focus on how carbon C fluxes are altered within plants during resource limitation and on how exchanges of resources (e.g., carbon, nitrogen) between plants and symbionts are altered by constraining environmental conditions.

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Staff/Team

Group leader: Henrik Hartmann
Technical support: Anett Enke, Savoyane Lambert, Iris Kuhlmann, Martin Göbel, Waldemar Ziegler
PhD students: David Herrera, Lenka Forkelova, Jianbei Huang, Bjoern Lorenz, Gabriela Pereyra, Haiyang Zhang, Junbin Zhao
Master/Diploma students: Sarah Fischer, Janine Schmidt

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Projects

  • Drought Stress Experiments
  • Changes in respiratory substrate use during shading and drought
  • Exchanges between Plantago and arbuscular mycorrhizal fungi during carbon limitation
  • Biological nitrogen fixation under varying degrees of carbon limitation
  • Allocation to secondary metabolites in peppermint during drought and carbon starvation
  • ...

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Publications

1Marchand, W., Girardin, M. P., Hartmann, H., Depardieu, C., Isabel, N., Gauthier, S., Boucher, É., Bergeron, Y. (in press). Strong overestimation of water-use efficiency responses to rising CO2 in tree-ring studies. Global Change Biology, 26(8), 4538-4558. doi:10.1111/gcb.15166. (internal: suppl1.zip in press.pdf [ internal use only - do NOT distribute] )
2Schuldt, B., Buras, A., Arend, M., Vitasse, Y., Beierkuhnlein, C., Dammf, A., Gharun, M., Grams, T. E., Hauck, M., Hajek, P., Hartmann, H., Hiltbrunner, E., Hoch, G., Holloway-Phillips, M., Körner, C., Larysch, E., Lübbe, T., Nelson, D. B., Rammig, A., Rigling, A., Rose, L., Ruehr, N. K., Schumann, K., Weiser, F., Werner, C., Wohlgemuth, T., Zang, C. S., Kahmen, A. (2020). A first assessment of the impact of the extreme 2018 summer drought on Central European forests. Basic and Applied Ecology, 45, 86-103. doi:10.1016/j.baae.2020.04.003.
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3Dai, J., Liu, H., Wang, Y., Guo, Q., Hu, T., Quine, T., Green, S., Hartmann, H., Xu, C., Liu, X., Jiang, Z. (2020). Drought-modulated allometric patterns of trees in semi-arid forests. Communications Biology, 3(1): 405. doi:10.1038/s42003-020-01144-4.
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4Becacici Macieira, B. P., Locosselli, G. M., Buckeridge, M. S., Hartmann, H., Faustini Cuzzuol, G. R. (2020). Stem and leaf functional traits allow successional classification in six pioneer and non-pioneer tree species in Tropical Moist Broadleaved Forests. Ecological Indicators, 113: 106254. doi:10.1016/j.ecolind.2020.106254. (internal: final.pdf )
5Hartmann, H., Bahn, M., Carbone, M., Richardson, A. D. (2020). Plant carbon allocation in a changing world – challenges and progress: introduction to a Virtual Issue on carbon allocation. New Phytologist, 227(4), 981-988. doi:10.1111/nph.16757.
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6Huang, J., Rücker, A., Schmidt, A., Gleixner, G., Gershenzon, J., Trumbore, S. E., Hartmann, H. (2020). Production of constitutive and induced secondary metabolites is coordinated with growth and storage in Norway spruce saplings. Tree Physiology, 40(7): tpaa040, pp. 928-942. doi:10.1093/treephys/tpaa040.
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7Rehschuh, R., Cecilia, A., Zuber, M., Faragó, T., Baumbach, T., Hartmann, H., Jansen, S., Mayr, S., Ruehr, N. (2020). Drought-induced xylem embolism limits the recovery of leaf gas exchange in Scots pine. Plant Physiology, 184(2), 852-864. doi:10.1104/pp.20.00407. (internal: final.pdf suppl1.pdf )
8Herrera-Ramirez, D., Muhr, J., Hartmann, H., Roemermann, C., Trumbore, S. E., Sierra, C. (2020). Probability distributions of nonstructural carbon ages and transit times provide insights into carbon allocation dynamics of mature trees. New Phytologist, 26(5), 1299-1311. doi:10.1111/nph.16461.
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9Schulze, E. D., Hartmann, H., Lambert, S., Weber, U. (2020). Folgen von Spätfrösten bei der Buche in montanen Lagen. AFZ, der Wald, 18, 46-48. (internal: final.pdf )
10Joseph, J., Gao, D., Backes, B., Bloch, C., Brunner, I., Gleixner, G., Haeni, M., Hartmann, H., Hoch, G., Hug, C., Kahmen, A., Lehmann, M. M., Li, M.-H., Luster, J., Peter, M., Poll, C., Rigling, A., Rissanen, K. A., Ruehr, N. K., Saurer, M., Schaub, M., Schönbeck, L., Stern, B., Thomas, F. M., Werner, R. A., Werner, W., Wohlgemuth, T., Hagedorn, F., Gessler, A. (2020). Rhizosphere activity in an old-growth forest reacts rapidly to changes in soil moisture and shapes whole-tree carbon allocation. Proc.Natl.Acad.Sci.USA, 117(40), 24885-24892. doi:10.1073/pnas.2014084117. (internal: suppl1.pdf final.pdf )
11Rewald, B., Ammer, C., Hartmann, H., Malyshev, A. V., Meier, I. C. (2020). Editorial: Woody plants and forest ecosystems in a complex world—Ecological interactions and physiological functioning above and below ground. Frontiers in Plant Science, 11: 173. doi:10.3389/fpls.2020.00173.
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12Marchand, W., Girardin, M. P., Hartmann, H., Gauthier, S., Bergeron, Y. (2019). Taxonomy, together with ontogeny and growing conditions, drives needleleaf species’ sensitivity to climate in boreal North America. Global Change Biology, 25(8), 2793-2809. doi:10.1111/gcb.14665. (internal: suppl1.docx final.pdf )
13Huang, J., Kautz, M., Trowbridge, A. M., Hammerbacher, A., Raffa, K. F., Adams, H. D., Goodsman, D. W., Xu, C., Meddens, A. J. H., Kandasamy, D., Gershenzon, J., Seidl, R., Hartmann, H. (2019). Tree defence and bark beetles in a drying world: carbon partitioning, functioning and modelling. New Phytologist, 225(1), 26-36. doi:10.1111/nph.16173.
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14Huang, J., Hammerbacher, A., Weinhold, A., Reichelt, M., Gleixner, G., Behrendt, T., van Dam, N. M., Sala, A., Gershenzon, J., Trumbore, S. E., Hartmann, H. (2019). Eyes on the future – evidence for trade-offs between growth, storage and defense in Norway spruce. New Phytologist, 222(1), 144-158. doi:10.1111/nph.15522.
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15Brando, P. M., Paolucci, L., Ummenhofer, C. C., Ordway, E. M., Hartmann, H., Cattau, M. E., Rattis, L., Medjibe, V., Coe, M. T., Balch, J. (2019). Droughts, wildfires, and forest carbon cycling: A pantropical synthesis. Annual Review of Earth and Planetary Sciences, 47, 555-581. doi:10.1146/annurev-earth-082517-010235. (internal: final.pdf suppl1.pdf )
16Hesse, B. D., Goisser, M., Hartmann, H., Grams, T. E. E. (2019). Repeated summer drought delays sugar export from the leaf and impairs phloem transport in mature beech. Tree Physiology, 39(2), 192-200. doi:10.1093/treephys/tpy122.
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17Huang, J., Forkelova, L., Unsicker, S. B., Forkel, M., Griffith, D. W. T., Trumbore, S. E., Hartmann, H. (2019). Isotope labeling reveals contribution of newly fixed carbon to carbon storage and monoterpenes production under water deficit and carbon limitation. Environmental and Experimental Botany, 162, 333-344. doi:10.1016/j.envexpbot.2019.03.010. (internal: final.pdf )
18Zhang, H.-Y., Hartmann, H., Gleixner, G., Thoma, M., Schwab, V. F. (2019). Carbon isotope fractionation including photosynthetic and post-photosynthetic processes in C3 plants: Low [CO2] matters. Geochimica et Cosmochimica Acta, 245, 1-15. doi:10.1016/j.gca.2018.09.035. (internal: suppl1.docx final.pdf )
19Cailleret, M., Dakos, V., Jansen, S., Robert, E. M., Aakala, T., Amoroso, M. M., Antos, J. A., Bigler, C., Bugmann, H., Caccianiga, M., Camarero, J. J., Cherubini, P., Coyea, M. R., Cufar, K., Das, A. J., Davi, H., Gea-Izquierdo, G., Gillner, S., Haavik, L. J., Hartmann, H., Heres, A.-M., Hultine, K. R., Janda, P., Kane, J. M., Kharuk, V. I., Kitzberger, t., Klein, T., Levanic, T., Linares, J. C., Lombardi, F., Mäkinen, H., Mészáros, I., Metsaranta, J. M., Oberhuber, W., Papadopoulos, A., Petritan, A. M., Rohner, B., Sangüesa-Barreda, G., Smith, J. M., Stan, A., Stojanovic, D. B., Suarez, M. L., Svoboda, M., Trotsiuk, V., Villalba, R., Westwood, A., Wyckoff, P., Martínez-Vilalta, J. (2019). Early-warning signals of individual tree mortality based on annual radial growth. Frontiers in Plant Science, 9: 1964. doi:10.3389/fpls.2018.01964.
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20Klein, T., Hartmann, H. (2018). Climate change drives tree mortality. Science, 362(6416), 758. doi:10.1126/science.aav6508. (internal: final.pdf )
21D’Orangeville, L., Maxwell, J., Kneeshaw, D., Pederson, N., Duchesne, L., Logan, T., Houle, D., Arseneault, D., Beier, C. M., Bishop, D. A., Druckenbrod, D., Fraver, S., Girard, F., Halman, J., Hansen, C., Hart, J. L., Hartmann, H., Kaye, M., Leblanc, D., Manzoni, S., Ouimet, R., Rayback, S., Rollinson, C. R., Phillips, R. P. (2018). Drought timing and local climate determine the sensitivity of eastern temperate forests to drought. Global Change Biology, 24(6), 2339-2351. doi:10.1111/gcb.14096. (internal: suppl1.docx final.pdf )
22Marchand, W., Girardin, M. P., Gauthier, S., Hartmann, H., Bouriaud, O., Babst, F., Bergeron, Y. (2018). Untangling methodological and scale considerations in growth and productivity trend estimates of Canada's forests. Environmental Research Letters, 13: 093001. doi:10.1088/1748-9326/aad82a.
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23Hartmann, H., Schuldt, B., Sanders, T. G. M., Macinnis-Ng, C., Boehmer, H. J., Allen, C. D., Bolte, A., Crowther, T. W., Hansen, M. C., Medlyn, B. E., Ruehr, N. K., Anderegg, W. R. L. (2018). Monitoring global tree mortality patterns and trends. Report from the VW symposium 'Crossing scales and disciplines to identify global trends of tree mortality as indicators of forest health'. New Phytologist, 217(3), 984-987. doi:10.1111/nph.14988.
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24Weber, R., Schwendener, A., Schmid, S., Lambert, S., Wiley, E., Landhäusser, S. M., Hartmann, H., Hoch, G. (2018). Living on next to nothing: tree seedlings can survive weeks with very low carbohydrate concentrations. New Phytologist, 218(1), 107-118. doi:10.1111/nph.14987.
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25Li, W., Hartmann, H., Adams, H. D., Zhang, H., Jin, C., Zhao, C., Guan, D., Wang, A., Yuan, F., Wu, J. (2018). The sweet side of global change–dynamic responses of non-structural carbohydrates to drought, elevated CO2 and nitrogen fertilization in tree species. Tree Physiology, 38(11), 1706-1723. doi:10.1093/treephys/tpy059.
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26Landhäusser, S. M., Chow, P. S., Dickman, L. T., Furze, M. E., Kuhlmann, I., Schmid, S., Wiesenbauer, J., Wild, B., Gleixner, G., Hartmann, H., Hoch, G., McDowell, N. G., Richardson, A. D., Richter, A., Adams, H. D. (2018). Standardized protocols and procedures can precisely and accurately quantify non-structural carbohydrates. Tree Physiology, 38(12), 1764-1778. doi:10.1093/treephys/tpy118.
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27Zhang, H.-Y., Lü, X.-T., Hartmann, H., Keller, A., Han, X.-G., Trumbore, S. E., Phillips, R. P. (2018). Foliar nutrient resorption differs between arbuscular mycorrhizal and ectomycorrhizal trees at local and global scales. Global Ecology and Biogeography, 27(7), 875-885. doi:10.1111/geb.12738. (internal: suppl1.zip final.pdf )
28Huang, J., Hartmann, H., Hellén, H., Wisthaler, A., Perreca, E., Weinhold, A., Rücker, A., van Dam, N. M., Gershenzon, J., Trumbore, S. E., Behrendt, T. (2018). New perspectives on CO2, temperature and light effects on BVOC emissions using online measurements by PTR-MS and cavity ring-down spectroscopy. Environmental Science & Technology, 52(23), 13811-13823. doi:10.1021/acs.est.8b01435. (internal: final.pdf suppl1.pdf suppl2.pdf )
29Furze, M. E., Trumbore, S. E., Hartmann, H. (2018). Detours on the phloem sugar highway: stem carbon storage and remobilization. Current Opinion in Plant Biology, 43, 89-95. doi:10.1016/j.pbi.2018.02.005. (internal: final.pdf )
30McDowell, N., Allen, C. D., Anderson-Teixeira, K., Brando, P., Brienen, R., Chambers, J., Christoffersen, B., Davies, S., Doughty, C., Duque, A., Espirito-Santo, F., Fisher, R., Fontes, C. G., Galbraith, D., Goodsman, D., Grossiord, C., Hartmann, H., Holm, J., Johnson, D. J., Kassim, A. R., Keller, M., Koven, C., Kueppers, L., Kumagai, T., Malhi, Y., McMahon, S. M., Mencuccini, M., Meir, P., Moorcroft, P., Muller-Landau, H. C., Phillips, O. L., Powell, T., Sierra, C., Sperry, J., Warren, J., Xu, C., Xu, X. (2018). Drivers and mechanisms of tree mortality in moist tropical forests. New Phytologist, 219(3), 851-869. doi:10.1111/nph.15027.
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31Hartmann, H., Adams, H. D., Hammond, W. M., Hoch, G., Landhäusser, S. M., Wiley, E., Zaehle, S. (2018). Identifying differences in carbohydrate dynamics of seedlings and mature trees to improve carbon allocation in models for trees and forests. Environmental and Experimental Botany, 152, 7-18. doi:10.1016/j.envexpbot.2018.03.011. (internal: final.pdf )
32Zhang, H.-Y., Lü, X.-T., Knapp, A. K., Hartmann, H., Bai, E., Wang, X.-B., Wang, Z.-W., Wang, X.-G., Yu, Q., Han, X.-G. (2018). Facilitation by leguminous shrubs increases along a precipitation gradient. Functional Ecology, 32(1), 203-213. doi:10.1111/1365-2435.12941.
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33Hartmann, H., Moura, C., Anderegg, W. R. L., Ruehr, N. K., Salmon, Y., Allen, C. D., Arndt, S. K., Breshears, D. D., Davi, H., Galbraith, D., Ruthrof, K. X., Wunder, J., Adams, H. D., Bloemen, J., Cailleret, M., Cobb, R., Gessler, A., Grams, T. E. E., Jansen, S., Kautz, M., Lloret, F., O’Brien, M. (2018). Research frontiers for improving our understanding of drought-induced tree and forest mortality. New Phytologist, 218(1), 15-28. doi:10.1111/nph.15048.
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34Cobb, R. C., Ruthrof, K., Breshears, D., Llorett, F., Aakala, T., Adams, H. D., Anderegg, W. L., Ewers, B. E., Galiano, L., Grünzweig, J. M., Hartmann, H., Huang, C., Klein, T., Kunert, N., Kitzberger, T., Landhäusser, S. M., Levick, S. R., Preisler, Y., Suarez, M. L., Trotsiuk, V., Zeppel, M. (2017). Ecosystem dynamics and management after forest die-off: a global synthesis with conceptual state-and-transition models. Ecosphere, 8(12): e02034. doi:10.1002/ecs2.2034.
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35Cailleret, M., Jansen, S., Robert, E. M. R.., de Soto, L., Aakala, T., Antos, J. A., Beikircher, B., Bigler, C., Bugmann, H., Caccianiga, M., Cada, V., Camarero, J. J.., Cherubini, P., Cochard, H., Coyea, M. R.., Cufar, K., Das, A. J., Davi, H., Delzon, S., Dorman, M., Gea-Izquierdo, G., Gillner, S., Haavik, L. J.., Hartmann, H., Heres, A.-M., Hultine, K. R.., Janda, P., Kane, J. M., Kharuk, V. I.., Kitzberger, T., Klein, T., Kramer, K., Lens, F., Levanic, T., Linares Calderon, J. C., Lloret, F., Lobodo-Vale, R., Lombardi, F., Lopez Rodriguez, R., Mäkinen, H., Mayr, S., Meszaros, I., Metsaranta, J. M., Minunno, F., Oberhuber, W., Papadopoulos, A., Peltoniemi, M., Petritan, A. M., Rohner, B., Sangüesa-Barreda, G., Sarris, D., Smith, J. M., Stan, A. B., Sterck, F., Stojanovic, D. B.., Suarez, M. L.., Svoboda, M., Tognetti, R., Torres-Ruiz, J. M., Trotsiuk, V., Villalba, R., Vodde, F., Westwood, A. R.., Wyckoff, P. H., Zafirow, N., Martinez-Vilalta, J. (2017). A synthesis of radial growth patterns preceding tree mortality. Global Change Biology, 23(4), 1675-1690. doi:10.1111/gcb.13535. (internal: suppl1.docx final.pdf )
36Huang, J., Hammerbacher, A., Forkelova, L., Hartmann, H. (2017). Release of resource constraints allows greater carbon allocation to secondary metabolites and storage in winter wheat. Plant, Cell and Environment, 40(5), 672-685. doi:10.1111/pce.12885. (internal: suppl1.dotx final.pdf )
37Huang, J., Reichelt, M., Chowdhury, S., Hammerbacher, A., Hartmann, H. (2017). Increasing carbon availability stimulates growth and secondary metabolites via modulation of phytohormones in winter wheat. Journal of Experimental Botany, 68(5), 1251-1263. doi:10.1093/jxb/erx008.
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38Türke, M., Feldmann, R., Fürst, B., Hartmann, H., Herrmann, M., Klotz, S., Mathias, G., Meldau, S., Ottenbreit, M., Reth, S., Schädler, M., Trogisch, S., Buscot, F., Eisenhauer, N. (2017). Multitrophische Biodiversitätsmanipulation unter kontrollierten Umweltbedingungen im iDiv Ecotron. In L. Arbeitsgruppe Lysimeter (Ed.), 17. Lysimetertagung, 09.-10.Mai 2017 an der HBLFA Raumbach-Gumpenstein (pp. 107-114). (internal: final.pdf )
39Adams, H. D., Zeppel, M. J. B., Anderegg, W. R. L., Hartmann, H., Landhäusser, S. M., Tissue, D. T., Huxman, T. E., Hudson, P. J., Franz, T. E., Allen, C. D., Anderegg, L. D. L., Barron-Gafford, G. A., Beerling, D. J., Breshears, D. D., Brodribb, T. J., Bugmann, H., Cobb, R. C., Collins, A. D., Dickman, L. T., Duan, H., Ewers, B. E., Galiano, L., Galvez, D. A., Garcia-Forner, N., Gaylord, M. L., Germino, M. J., Gessler, A., Hacke, U. G., Hakamada, R., Hector, A., Jenkins, M. W., Kane, J. M., Kolb, T. E., Law, D. J., Lewis, J. D., Limousin, J.-M., Love, D. M., Macalady, A. K., Martínez-Vilalta, J., Mencuccini, M., Mitchell, P. J., Muss, J. D., O’Brien, M. J., O’Grady, A. P., Pangle, R. E., Pinkard, E. A., Piper, F. I., Plaut, J. A., Pockman, W. T., Quirk, J., Reinhardt, K., Ripullone, F., Ryan, M. G., Sala, A., Sevanto, S., Sperry, J. S., Vargas, R., Vennetier, M., Way, D. A., Xu, C., Yepez, E. A., McDowell, N. G. (2017). A multi-species synthesis of physiological mechanisms in drought-induced tree mortality. Nature Ecology & Evolution, 1(9), 1285-1291. doi:10.1038/s41559-017-0248-x. (internal: suppl1.pdf final.pdf )
40Muhr, J., Messier, C., Delagrange, S., Trumbore, S. E., Xu, X., Hartmann, H. (2016). How fresh is maple syrup? Sugar maple trees mobilize carbon stored several years previously during early springtime sap-ascent. New Phytologist, 209(4), 1410-1416. doi:10.1111/nph.13782.
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41Hartmann, H., Trumbore, S. E. (2016). Understanding the roles of nonstructural carbohydrates in forest trees – from what we can measure to what we want to know. New Phytologist, 211(2), 386-403. doi:10.1111/nph.13955.
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42Hartmann, H. (2015). Carbon starvation during drought-induced tree mortality – are we chasing a myth? Journal of Plant Hydraulics, 2: e-005. doi:10.20870/jph.2015.e005.
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43Hanf, S., Fischer, S., Hartmann, H., Keiner, R., Trumbore, S. E., Popp, J., Frosch, T. (2015). Online investigation of respiratory quotients in Pinus sylvestris and Picea abies during drought and shading by means of cavity-enhanced Raman multi-gas spectrometry. Analyst, 140(13), 4473-4481. doi:10.1039/c5an00402k.
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44Quentin, A. G., Pinkard, E. A., Ryan, M. G., Tissue, D. T., Baggett, L. S., Adams, H. D., Maillard, P., Marchand, J., Landhäusser, S. M., Lacointe, A., Gibon, Y., Anderegg, W. R., Asao, S., Atkin, O. K., Bonhomme, M., Claye, C., Chow, P. S., Clément-Vidal, A., Davies, N. W., Dickman, L. T., Dumbur, R., Ellsworth, D. S., Falk, K., Galiano, L., Grünzweig, J. M., Hartmann, H., Hoch, G., Hood, S., Jones, J. E., Koike, T., Kuhlmann, I., Lloret, F., Maestro, M., Mansfield, S. D., Martínez-Vilalta, J., Maucourt, M., McDowell, N. G., Moing, A., Muller, B., Nebauer, S. G., Niinemets, Ü., Palacio, S., Piper, F., Raveh, E., Richter, A., Rolland, G., Rosas, T., Joanis, B. S., Sala, A., Smith, R. A., Sterck, F., Stinziano, J. R., Tobias, M., Unda, F., Watanabe, M., Way, D. A., Weerasinghe, L. K., Wild, B., Wiley, E., Woodruff, D. R. (2015). Non-structural carbohydrates in woody plants compared among laboratories. Tree Physiology, 35(11), 1146-1165. doi:10.1093/treephys/tpv073.
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45Pereyra, G., Hartmann, H., Michalzik, B., Ziegler, W., Trumbore, S. E. (2015). Influence of Rhizobia inoculation on biomass gain and tissue nitrogen content of Leucaena leucocephala seedlings under drought. Forests, 6, 3686-3703. doi:10.3390/f6103686.
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46Hartmann, H., McDowell, N. G., Trumbore, S. E. (2015). Allocation to carbon storage pools in Norway spruce saplings under drought and low CO2. Tree Physiology, 35(3), 243-252. doi:10.1093/treephys/tpv019.
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47Zhang, H., Ziegler, W., Han, X., Trumbore, S. E., Hartmann, H. (2015). Plant carbon limitation does not reduce nitrogen transfer from arbuscular mycorrhizal fungi to Plantago lanceolata. Plant and Soil, 396(1-2), 369-380. doi:10.1007/s11104-015-2599-x. (internal: final.pdf )
48Hartmann, H., Adams, H. D., Anderegg, W. R. L., Jansen, S., Zeppel, M. J. B. (2015). Research frontiers in drought-induced tree mortality: crossing scales and disciplines. New Phytologist, 205(3), 965-969. doi:10.1111/nph.13246.
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49Fischer, S., Hanf, S., Frosch, T., Gleixner, G., Popp, J., Trumbore, S. E., Hartmann, H. (2015). Pinus sylvestris switches respiration substrates under shading but not during drought. New Phytologist, 207(3), 542-550. doi:10.1111/nph.13452.
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50Trumbore, S. E., Brando, P., Hartmann, H. (2015). Forest health and global change. Science, 349(6250), 814-818. doi:10.1126/science.aac6759. (internal: final.pdf )
51Ma, Z., Hartmann, H., Wang, H., Li, Q., Wang, Y., Li, S. (2014). Carbon dynamics and stability between native Masson pine and exotic slash pine plantations in subtropical China. European Journal of Forest Research, 133, 307-321. doi:10.1007/s10342-013-0763-5. (internal: final.pdf )
52Zhao, J., Hartmann, H., Trumbore, S. E., Ziegler, W., Zhang, Y. (2013). High temperature causes negative whole-plant carbon balance under mild drought. New Phytologist, 200(2), 330-339. doi:10.1111/nph.12400.
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53Hartmann, H., Ziegler, W., Kolle, O., Trumbore, S. E. (2013). Thirst beats hunger – declining hydration during drought prevents carbon starvation in Norway spruce saplings. New Phytologist, 200(2), 340-349. doi:10.1111/nph.12331.
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54Hartmann, H., Ziegler, W., Trumbore, S. E. (2013). Lethal drought leads to reduction in nonstructural carbohydrates in Norway spruce tree roots but not in the canopy. Functional Ecology, 27(2), 413-427. doi:10.1111/1365-2435.12046.
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55Mackay, S. L., Arain, M. A., Khomik, M., Brodeur, J. J., Schumacher, J., Hartmann, H., Peichl, M. (2012). The impact of induced drought on transpiration and growth in a temperate pine plantation forest. Hydrological Processes, 26(12), 1779-1791. doi:10.1002/hyp.9315. (internal: final.pdf )
56Hartmann, H. (2011). Will a 385 million year-struggle for light become a struggle for water and for carbon? - How trees may cope with more frequent climate change-type drought events. Global Change Biology, 17(1), 642-655. doi:10.1111/j.1365-2486.2010.02248.x. (internal: final.pdf )
57Hartmann, H., Messier, C. (2011). Interannual variation in competitive interactions from natural and anthropogenic disturbances in a temperate forest tree species: Implications for ecological interpretation. Forest Ecology and Management, 261(11), 1936-1944. doi:10.1016/j.foreco.2011.02.018. (internal: final.pdf )
58Hartmann, H., Daoust, G., Bigue, B., Messier, C. (2010). Negative or positive effects of plantation and intensive forestry on biodiversity: A matter of scale and perspective. Forestry Chronicle, 86(3), 354-364. (internal: final.pdf )
59Hartmann, H., Beaudet, M., Mazerolle, M. J., Messier, C. (2009). Sugar maple (Acer saccharum Marsh.) growth is influenced by close conspecifics and skid trail proximity following selection harvest. Forest Ecology and Management, 258(5), 823-831. doi:10.1016/j.foreco.2009.05.028. (internal: final.pdf )
60Hartmann, H., Messier, C. (2008). The role of forest tent caterpillar defoliations and partial harvest in the decline and death of sugar maple. Annals of Botany, 102(3), 377-387. doi:10.1093/aob/mcn104.
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61Hartmann, H., Beaudet, M., Messier, C. (2008). Using longitudinal survival probabilities to test field vigour estimates in sugar maple (Acer saccharum Marsh.). Forest Ecology and Management, 256(10), 1771-1779. doi:10.1016/j.foreco.2008.02.045. (internal: final.pdf )
62Hartmann, H., Messier, C., Beaudet, M. (2007). Improving tree mortality models by accounting for environmental influences. Canadian Journal of Forest Research, 37(11), 2106-2114. doi:10.1139/X07-078. (internal: final.pdf )
63Nolet, P., Hartmann, H., Bouffard, D., Doyon, F. (2007). Predicted and observed sugar maple mortality in relation to site quality indicators. Northern Journal of Applied Forestry, 24(4), 258-264. (internal: final.pdf )
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