Abstract
In the area of Jumla region in Western Nepal, measurements of saturated leaf net photosynthetic rate (Psat), nitrogen content, leaf fluorescence, carbon isotopic composition, and water status were performed on woody coniferous (Pinus wallichiana, Picea smithiana, Abies spectabilis, Juniperus wallichiana, Taxus baccata), evergreen (Quercus semecarpifolia, Rhododendron campanulatum), and deciduous broadleaved species (Betula utilis, Populus ciliata, Sorbus cuspidata) spreading from 2 400 m up to the treeline at 4 200 m a.s.l. With the exception of J. wallichiana, Psat values were lower in coniferous than broadleaved species. Q. semecarpifolia, that in this area grows above the coniferous belt between 3 000 and 4 000 m, showed the highest Psat at saturating irradiance and the highest leaf N content. This N content was higher and Psat lower than those of evergreen oak species of tempe forests at middle and low altitudes. For all species, Psat and N content were linearly correlated, but instantaneous nitrogen use efficiency was lower than values measured in lowland and temperate plant communities. The values of carbon isotopic composition, estimated by δ13C, showed the same range reported for temperate tree species. The ranking of δ13C values for the different tree types was conifers < evergreen broadleaved<deciduous, suggesting tighter stomatal closure and higher water use efficiency for the evergreen types, confirming trends found elsewhere. No relevant differences of δ13C were found along the altitudinal gradient. Quantum yield of photochemistry at saturating irradiance, measured by leaf fluorescence (δF/Fm’), was highest in J. wallichiana and lowest in T. baccata. Overall, photochemical efficiency was more strongly related to species than to altitude. Interestingly, changes of .δF/Fm’ along the altitudinal gradient correlated well with the reported altitudinal distribution of the species.
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References
Aerts, R.: The advantages of being evergreen.–Trends Ecol. Evolut. 10: 402–407, 1995.
Billings, W.D., Mooney, H.A.: The ecology of arctic and alpine plants.–Biol. Rev. 43: 481–529, 1968.
Ceulemans, R.J., Saugier, B.: Photosynthesis.–In: Raghavendra, A.S. (ed.): Physiology of Trees. Pp. 21–50. John Wiley and Sons, New York 1991.
Dobremez, J.F.: Le Nepal. Ecologie et Biogéographie.–C.N.R.S., Paris 1976.
Dobremez, J.F., Shrestha, T.B.: Ecological Map of Nepal (Jumla-Saipal 1/250.000).–Documents n°9, Cahiers népalais. C.N.R.S., Paris 1980.
Farquhar, G.D., O’Leary, M.H., Berry, J.A.: On the relationship between carbon isotope discrimination and the intercellular carbon dioxide content in leaves.–Aust. J. Plant Physiol. 9: 121–137, 1982.
Field, C.B., Mooney, H.A.: The photosynthesis-nitrogen relationship in wild plants.–In: Givnish, T.J. (ed.): On the Economy of Plant Form and Function. Pp. 25–55. Cambridge University Press, Cambridge–London–New York Rochelle–Melbourne–Sydney 1986.
Friend, A.D., Woodward, F.I.: Evolutionary and ecophysiological responses of mountain plants to the growing season environment.–Adv. ecol. Res. 20: 59–124, 1990.
Friend, A.D., Woodward, F.I., Switsur, V.R.: Field measurements of photosynthesis, stomatal conducatance, leaf nitrogen and δ13C along altitudinal gradients in Scotland.–Funct. Ecol. 3: 117–122, 1989.
Gale, J.: Availability of carbon dioxide for photosynthesis at high altitudes: Theoretical considerations.–Ecology 53: 494–497, 1972.
Genty, B., Briantais, J.-M., Baker, N.R.: The relationship between the quantum yield of photosynthetic electron transport and quenching of chlorophyll fluorescence.–Biochim. biophys. Acta 990: 87–92, 1989.
Griffin, K.L.: Calorimetric estimates of construction cost and their use in ecological studies.–Funct. Ecol. 8: 551–562, 1994.
Kloeppel, B.D., Gower, S.T., Treichel, I.W., Kharuk, S.: Foliar carbon isotope discrimination in Larix species and sympatric evergreen conifers: a global comparison.–Oecologia 114: 153–159, 1998.
Körner, C.: Does global increase of CO2 alter stomatal density?–Flora 181: 253–257, 1988.
Körner, C.: The nutritional status of plants from high altitudes. A worldwide comparison.–Oecologia 81: 379–391, 1989.
Körner, C., Bannister, P., Mark, A.F.: Altitudinal variation in stomatal conductance, nitrogen content and leaf anatomy in different plant life forms in New Zealand.–Oecologia 69: 577–588, 1986.
Körner, C., Diemer, M.: In situ photosynthetic responses to light, temperature and carbon dioxide in herbaceous plants from low and high altitude.–Funct. Ecol. 1: 179–194, 1987.
Körner, C., Farquhar, G.D., Roksandic, Z.: A global survey of carbon isotope discrimination in plants from high altitude.–Oecologia 74: 623–632, 1988.
Körner, C., Farquhar, G.D., Wong, S.C.: Carbon isotope discrimination by plants follows latitudinal and altitudinal trends.–Oecologia 88: 30–40, 1991.
Körner, C., Mayr, R.: Stomatal behaviour in alpine plant communities between 600 and 2600 metres above see level.–In: Grace, J.G., Ford, E.D., Jarvis, P.G. (ed.): Plants and Their Atmospheric Environment. Pp. 205–218. Blackwell, Oxford 1981.
Krause, G.H., Weis, E.: Chlorophyll fluorescence and photosynthesis: The basics.–Annu. Rev. Plant Physiol. Plant mol. Biol. 42: 313–349, 1991.
Larcher, W.: Physiological Plant Ecology.–Springer-Verlag, Berlin–Heidelberg–New York 1983.
Marshall, J.D., Zhang, J.: Carbon isotope discrimination and water-use efficiency in native plants of the North-Central Rockies.–Ecology 75: 1887–1895, 1994.
Morecroft, M.D., Woodward, F.I.: Experimental investigations on the environmental determination of δ13C at different altitudes.–J. exp. Bot. 41: 19–23, 1990.
Ohsawa, M., Shakya, P.R., Numata, M.: Distribution and succession of West Himalayan forest types in the Eastern part of the Nepal Himalaya.–Mountain Res. Developm. 6: 143–157, 1986.
Raveh, A., Avnimelech, Y.: Total nitrogen analysis in water, soil and plant material with persulphate oxidatory.–Water Resources Res. 13: 911–912, 1979.
Rawat, Y.S., Singh, J.S.: Structure and function of oak forests in Central Himalaya. II. Nutrient Dynamics.–Ecology 62: 413–427, 1988.
Sakai, A.A., Malla, S.B.: Winter hardiness of tree species at high altitudes in the east Himalaya, Nepal.–Ecology 62: 1288–1298, 1981.
Shrestha, T.B.: Ecology and Vegetation of North-West Nepal (Karnali Region).–Royal Nepal Academy, Kamaladi 1982.
Shrestha, T.B.: Forest Plants of Nepal.–Educational Enterprise, Sanepa 1989.
Singh, J.S., Rawat, Y.S., Chaturvedi, O.P.: Replacement of oak forest with pine in the Himalaya affects the nitrogen cycle.–Nature 311: 54–56, 1984.
Smith, A.P., Young, T.P.: Tropical alpine plant ecology.–Annu. Rev. Ecol. Systematics 18: 137–158, 1987.
Streb, P., Shang, W., Feierabend, J., Blingny, R.: Divergent strategies of photoprotection in high-mountain plants.–Planta 207: 313–324, 1988.
Terashima, I., Masuzawa, T., Ohba, H.: Photosynthetic characteristics of a giant alpine plant, Rheum nobile Hook. F. et Thoms. and of some other alpine species measured at 4300 m, in the Eastern Himalaya, Nepal.–Oecologia 95: 194–201, 1993.
Tranquillini, W.: The physiology of plants at high altitudes.–Annu. Rev. Plant Physiol. 15: 345–362, 1964.
Troll, C.: The upper timberlines in different climatic zones.–Arctic alp. Res. 5: A3–A18, 1973.
Turner, I.M.: A quantitative analysis of leaf form in woody plants from the world’s major broadleaved forest types.–J. Biogeography 21: 413–419, 1994.
Valentini, R., Anfodillo, T., Ehleringer, J.R.: Water sources and carbon isotope composition (δ13C) of selected tree species of the Italian Alps.–Can. J. Forest Res. 24: 1575–1578, 1994.
Valentini, R., Scarascia Mugnozza, G.E., Ehleringer, J.R.: Hydrogen and carbon isotope ratios of selected species of a mediterranean macchia ecosystem.–Funct. Ecol. 6: 627–631, 1992.
Warren, C.R., McGrath, J.F., Adams, M.A.: Water availability and carbon isotope discrimination in conifers.–Oecologia 127: 476–486, 2001.
Zobel, D.B., Garkoti, S.C., Singh, S.P., Tewari, A., Negi, C.M.S.: Patterns of water potential among the forest types of the Central Himalaya.–Curr. Sci. 80: 774–779, 2001.
Zobel, D.B., Singh, S.P.: Tree water relations along the vegetational gradient in the Himalayas.–Curr. Sci. 68: 742–745, 1995.
Zobel, D.B., Singh, S.P.: Himalayan forests and ecological generalizations.–BioScience 47: 735–745, 1997.
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This revised version was published online in March 2005 with corrections to the page numbers.
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De Lillis, M., Matteucci, G. & Valentini, R. Carbon assimilation, nitrogen, and photochemical efficiency of different Himalayan tree species along an altitudinal gradient. Photosynthetica 42, 597–605 (2004). https://doi.org/10.1007/S11099-005-0019-9
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DOI: https://doi.org/10.1007/S11099-005-0019-9