Abstract
An assessment of adaptability of saplings of four evergreen species (Picea abies Karst., Pinus mugo Turra, Pinus peuce Grisb. and Pinus heldreichii H. Christ.), native for Bulgarian treeline zone, was made on the basis of leaf gas exchange and survivability in artificially induced drought stress. The established low sensitivity of gas exchange to summer drought and the highest mortality of P. abies may be regarded as an evidence for a narrow zone of tolerance. P. peuce and P. heldreichii have low survivorship under drought conditions, regardless of the variable effect of soil moisture on the gas exchange parameters. The better survivability and significant reduction of gas exchange in response to soil water deficit of P. mugo probably will give him an advantage in future adaptation to climate change and in competition with other subalpine species. We conclude that the expected trends in climate change will most likely lead to a further narrowing of the ecological and physiological comfortable zone for two investigated endemic species.
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Pachauri, R.K., Allen, M.R., Barros, V.R., Broome, J., et al., Climate Change 2014: Synthesis Report. Contribution of Working Groups I, II, and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, Geneva, Switzerland: IPCC, 2014.
Ditmarova, L., Kurjak, D., Palmroth, S., Kmet, J., et al., Physiological responses of Norway spruce (Picea abies) seedlings to drought stress, Tree Physiol., 2010, vol. 30, pp. pp. 205–213.
Anderson, J.E. and McNaughton, S.J., Effects of low soil temperature on transpiration, photosynthesis, leaf relative water content, and growth among elevationally diverse plant populations, Ecology, 1973, vol. 54, pp. 1220–1233.
Chapin, F.S., The mineral nutrition of wild plants, Annu. Rev. Ecol. Syst., 1980, vol. 11, pp. 233–260.
Davies, W.J., Root signals and the regulation of growth and development of plants in drying soil, Annu. Rev. Plant Physiol. Plant Mol. Biol., 1991, vol. 42, pp. 55–76.
Cornic, G. and Massacci, A., Leaf photosynthesis under drought stress, in Photosynthesis and the Environment, Baker, N.R., Ed., Dordrecht, 1996, pp. 347–366.
Bréda, N., Huc, R., Granier, A., and Dreyer, E., Temperate forest trees and stands under severe drought: A review of ecophysiological responses, adaptation processes and long-term consequences, Ann. For. Sci., 2006, vol. 63, pp. 625–644.
Lindner, M., Maroschek, M., Netherer, S., Kremer, A., et al., Climate change impacts, adaptive capacity, and vulnerability of European forest ecosystems, For. Ecol. Manag., 2010, vol. 259, pp. 698–709.
Allen, C.D., Macalady, A.K., Chenchouni, H., Bachelet, D., et al., A global overview of drought and heat-induced tree mortality reveals emerging climate change risks for forests, For. Ecol. Manag., 2010, vol. 259, pp. 660–684.
Minďáš, J., Čaboun, V., and Priwitzer, T. Timber line and expected climate changes, in Zborník Turiec a Fatra, Kadlečík, J., Ed., Vrútky, Slovakia: ŠOP SR, pp. 17–23.
Vacek, S., Hejcmanová, P., Hejcman, M., and Vacek, Z., Growth, healthy status and seed production of differently aged allochthonous and autochthonous Pinus mugo stands in the Giant Mts. over 30 years, Eur. J. For. Res., 2013, vol. 132, pp. 801–813.
Švajda J., Solár, J., Janiga, M., and Buliak, M., Dwarf pine (Pinus mugo) and selected abiotic habitat condi-tions in the Western Tatra Mountains, Mt. Res. Dev., 2011, vol. 31, pp. 220–228.
Meshinev, T., Apostolova, I., and Koleva, E., Influence of warming on timberline rising: A case study on Pinus peuce Griseb. in Bulgaria, Phytocoenologia, 2000, vol. 30, pp. 431–438.
Shelford, V.E., Some concepts of bioecology, Ecology, 1931, vol. 12, pp. 455–467.
Schulze, E.D., Beck, E., and Müller-Hohenstein, K., Plant Ecology, Springer, 2005.
Abramoff, M.D., Image processing with ImageJ, Biophotonics Int., 2004, vol. 11, pp. 36–42.
Solberg, S., Summer drought: A driver for crown condition and mortality of Norway spruce in Norway, For. Pathol., 2004, vol. 34, pp. 93–104.
Monson, R.K., Turnipseed, A.A., Sparks, J.P., Harley, P.C., et al., Carbon sequestration in a high-elevation, subalpine forest, Global Change Biol., 2002, vol. 8.
Dullinger, S., Dirnböck T., Köck, R., Hochbichler, E., et al., Interactions among tree-line conifers: Differential effects of pine on spruce and larch, J. Ecol., 2005, vol. 93, pp. 948–957.
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Anev, S.M., Tzvetkova, N.P. Drought Stress in Four Subalpine Species: Gas Exchange Response and Survivorship. Russ J Ecol 49, 422–427 (2018). https://doi.org/10.1134/S1067413618050016
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DOI: https://doi.org/10.1134/S1067413618050016