Abstract
As reported in several studies, the presence of Abies alba Mill (silver fir) has been declining throughout its natural range over a large part of mountainous belt in the Mediterranean area. In such a context, regeneration establishment depends mainly on the occurrence of a suitable combination of water and light availability. Thus, before planning any forest management practice, it is essential to investigate on the optimal microclimate conditions influencing the success of natural regeneration of silver fir. To this aim, changes in growth and photosynthesis together with C, N and O isotope compositions have been investigated on silver fir naturally recruited saplings, growing in mixed stands with Fagus sylvatica on Apennine mountains (southern Italy). The apical dominance ratio (ADR, ratio between apical shoot length and length of first whorl lateral twigs) has been used as an indicator for microclimate conditions in which saplings grow. Based on the range of ADR values (i.e. from 0.10 to 1.30), saplings were distributed in four classes. As expected, increases in height, root collar diameter and radial growth correspond to enhancing ADR values, gaining the optimal conditions in class IV. This latter also displayed the best performance in terms of maximum CO2 assimilation at saturating light (A max) and water-use efficiency as assessed by carbon isotope discrimination analysis. Conversely, class I and II seem to display the highest performance in terms of CO2 respiration rate (R d) and absolute water loss saving as assessed by the application of oxygen isotopes. We conclude that, in relatively mild Mediterranean areas, forest managers should promote silvicultural treatments favouring light conditions and migration of saplings towards class IV of ADR. This class represents the optimal microclimate for regeneration establishment of silver fir.
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References
Ameztegui A, Coll L (2011) Tree dynamics and co-existence in the montane-sub-alpine ecotone: the role of different light-induced strategies. J Veg Sci 22:1049–1061
Bagnaresi U, Baldini E, Rossi F (1989) Energia radiante, struttura ed accrescimento del novellame di abete bianco e di abete rosso in alcune formazioni forestali nelle Alpi Orientali. Ann Accad Ital Sci For XXXVIII:81–108 (in Italian)
Barbour M, Farquhar G (2000) Relative humidity and ABA-induced variation in carbon and oxygen isotope ratios in cotton leaves. Plant, Cell Environ 23:473–485
Barthélémy D, Caraglio Y (2007) Plant architecture: a dynamic, multilevel and comprehensive approach to plant form, structure and ontogeny. Ann Bot 99:375–407
Brzeziecki B, Kienast F (1994) Classifying the life history strategies of trees on the basis of the Grimian model. For Ecol Manag 69:167–187
Carrer M, Nola P, Motta R, Urbinati C (2010) Contrasting tree-ring growth to climate responses of Abies alba toward the southern limit of its distribution area. Oikos 119:1515–1525
Chazdon RL (1988) Sunflecks and their importance to forest understory plants. Adv Ecol Res 18:1–63
Ciancio O, Iovino F, Menguzzato G, Mirabella A (1985) L’abete (Abies alba Mill) in Calabria: possibilità e limiti di diffusione e ridiffusione. Ann Ist Sperim Selv XVI:6–249 (in Italian)
Claveau Y, Messier C, Comeau PG, Koates KD (2002) Growth and crown morphological responses of boreal conifer seedlings and saplings with contrasting shade tolerance to a gradient of light and height. Can J For Res 32:458–468
Claveau Y, Messier C, Comeau PG (2005) Interacting influence of light and size on aboveground biomass distribution in sub-boreal conifer sapling with contrasting shade tolerance. Tree Physiol 25:373–384
Cline M (1991) Apical dominance. Bot Rev 57:318–358
Corona P, Ferrara A, La Marca O (1989) Un sistema di misura delle ampiezze anulari: il dendrocronografo “Smil 3”. Ital For Mont Anno XLIV 5:391–404 (in Italian)
D’Alessandro CM, Borghetti M, Saracino A (2006) Thinning affects water-use efficiency of hardwood saplings naturally recruited in a Pinus radiata D. Don plantation. For Ecol Manag 222:116–122
Dai X (1996) Influence of light conditions in canopy gaps on forest regeneration: a new gap light index and its application in a boreal forest in east-central Sweden. For Ecol Manag 84:187–197
Dawson TE, Mambelli S, Plambaeck AH, Templer PH, Tuk P (2002) Stable Isotopes in plant ecology. Annu Rev Ecol Syst 33:507–559
Delagrange S, Messier C, Lechowicz MJ, Dizengremel P (2004) Physiological, morphological and allocational plasticity in understory deciduous trees: importance of plant size and light availability. Tree Physiol 24:775–784
Dewar RC (1997) A simple model of light and water use evaluated for Pinus radiata. Tree Physiol 17:259–265
Di Pietro R, Fascetti S (2005) Contribute to knowledge of Abies alba Miller woodlands within the Lucanian Apennines. Fitosociologia 42(1):71–95
Dobrowolska D (2008) Growth and development of silver fir (Abies alba Mill.) Regeneration and restoration of the species in the Karkonosze Mountains. J For Sci 54(9):398–408
Duchesnau R, Lesage I, Messier C, Morin H (2001) Effect of light and interspecific competition on growth and morphology of two size classes of understory balsam fir saplings. For Ecol Manag 140:215–225
Farquhar G, Lloyd J (1993) Carbon and oxygen isotope effects in the exchange of carbon dioxide between terrestrial plants and the atmosphere. In: Ehleringer JR, Hall AE, Farquhar GD (eds) Stable isotopes and plant carbon–water relations. Academic Press, San Diego, pp 47–70
Farquhar GD, Ehleringer JR, Hubick KT (1989) Carbon isotope discrimination and photosynthesis. Ann Rev Plant Physiol Plant Mol Biol 40:503–537
Ghashghaie J, Badeck FW (2014) Opposite carbon isotope discrimination during dark respiration in leaves versus roots—a review. New Phytol 201(3):751–769
Giorgi F, Lionello P (2008) Climate change projections for the Mediterranean region. Glob Plan Changes 63(2):90–104
Givinish TJ (1988) Adaptation to sun and shade: a whole plant perspective. Aust J Plant Physiol 15:63–92
Gower ST, Norman JM (1991) Rapid estimation of leaf area index in conifer and broad-leaf plantations. Ecology 72:1896–1900
Grassi G, Bagnaresi U (2001) Foliar morphological and physiological plasticity in Picea Abies and Abies alba saplings along a natural light gradient. Tree Physiol 21:959–967
Grassi G, Giannini R (2005) Influence of light and competition on crown and shoot morphological parameters of Norway spruce and silver fir saplings. Ann For Sci 62:269–274
Grassi G, Ripullone F, Borghetti M, Raddi S, Magnani F (2009) Contribution of diffusional and non-diffusional limitations to midday depression of photosynthesis in Arbutus unedo L. Trees 23:1149–1161
Hladka D, Priwitzer T (2005) Ecophysiological and morphological characteristics of fir (Abies alba Mill) plants on dependence of light condition changes. Ekologia 24(4):357–367
Iovino F, Menguzzato G (1993) L’abete bianco sull’appennino Lucano. Ann Acc Ital Sci For XLII:185–214 (in Italian)
Korkmaz S, Goksuluk D, Zararsiz G (2014) MVN: an R Package for Assessing Multivariate Normality. R J 6(2):151–162
Kottek M, Grieser J, Beck C, Rudolf B, Rubel F (2006) World map of the Koppen–Geiger climate classification updated. Meteorol Zeitschr 15:259–263
Kramer PJ (1958) Photosynthesis of trees as affected by their environment. In: Thimann KV (ed) The physiology of forest trees. Ronald Press, New York, pp 157–186
Küppers M, Timm H, Orth F, Stagemann J, Stöber R, Schneider H, Paliwal K, Karunaichamy KSTK, Ortiz R (1996) Effects of light environment and successional status on light fleck use by understory trees of temperate and tropical forests. Tree Physiol 16(1–2):69–80
Kurepin LV, Emery RJN, Pharis RP, Reid DM (2007) Uncoupling light quality from light irradiance effects in Helianthus annuus shoots: putative roles for plant hormones in leaf and internode growth. J Exp Bot 58:2145–2157
Lauteri M, Pliura A, Monteverdi MC, Brugnoli E, Villani F, Eriksson G (2004) Genetic variation in carbon isotope discrimination in six European populations of Castanea sativa Mill. originating from contrasting localities. J Evol Biol 17(6):1286–1296
Lauteri M, Alessio GA, Paris P (2006) Using oxygen stable isotope to investigate the soil–plant–atmosphere hydraulic continuum in complex stands of walnut. In: Malvolti ME, Avanzato D (eds) Acta hortic. ISHS, Belgium, pp 223–230
Leverenz JW (1987) Chlorophyll content and the light response curve of shade-adapted conifer needles. Physiol Plant 71(1):20–29
Linares JC, Camarero JJ (2011) Growth patterns and sensitivity to climate predict silver fir decline in the Spanish Pyrenees. J For Res, Eur. doi:10.1007/s10342-011-0572-7
Magini E (1967) Ricerche sui fattori della rinnovazione naturale dell’abete bianco. Ital For Mont XLII(6):261–270 (in Italian)
Magnussen S, Peschl A (1981) Die Einwirkung verschiedener Beschattungsgrade auf die Photosynthese und die Transpiration junger Weiss-und Kiistentanne. Allgemeine Forst und Jagdzeitung 151:82–93 (in German)
Mingo A, Magliulo V, Mazzoleni S (1998) Ecophysiology of five Mediterranean perennial grasses: II) Effects of shade on gas exchange. Plant Biosyst 132(1):21–27
Nolè A, Saracino A, Borghetti M (2003) Microclima luminoso, rinnovazione naturale e distribuzione spaziale di Abies Alba Mill. nell’abetina di Laurenzana, Basilicata. Ital For Mont LVIII 1:7–21 (in Italian)
Paci M (2004) Ecologia Forestale. Elementi di conoscenza dei sistemi forestali. In: Edagricole -Il Sole 24 ore, Bologna (in Italian)
Pardo L, Nadelhoffer K (2010) Using nitrogen stable isotope ratios to assess terrestrial ecosystems at regional and global scales. In: West JB, Bowen GJ, Dawson TE, Tu KP (eds) Isoscapes: understanding movement pattern and process on earth through isotope mapping. Springer, New York, pp 221–249
R Development Core Team (2013) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna
Ripullone F, Lauteri M, Grassi G, Amato M, Borghetti M (2004) Variation in nitrogen supply changes water-use efficiency of Pseudotsuga menziesii and Populus x euroamericana: a comparison of three approaches to determine water-use efficiency. Tree Physiol 24(6):671–679
Ripullone F, Borghetti M, Raddi S, Vicinelli E, Baraldi R, Guerrieri R, Nolè A, Magnani F (2009a) Physiological and structural changes in response to altered precipitation regime in an evergreen Mediterranean macchia. Trees 23:823–834
Ripullone F, Guerrieri R, Saurer M, Siegwolf R, Jäggi M, Guarini R, Magnani F (2009b) Testing a dual isotope model to track carbon and water gas exchanges in Mediterranean areas. iFor Biogeosci For 2:59–66
Rita A, Gentilesca T, Ripullone F, Todaro L, Borghetti M (2014) Differential climate-growth relationships in Abies alba Mill. and Fagus sylvatica L. in Mediterranean mountain forests. Dendrochronologia 32(3):220–229
Robakowski P, Montpied P, Dreyer E (2003) Plasticity of morphological and physiological traits in response to different levels of irradiance in seedlings of silver fir (Abies alba Mill). Trees 17:431–441
Robakowski P, Wyka T, Samardakiewicz S, Kierzkovki D (2004) Growth, photosynthesis, and needle structure of silver fir (Abies alba Mill.) seedlings under different canopies. For Ecol Manag 201:211–227
Sanchez-Gomez D, Valladares F, Zavola MA (2006) Functional traits and plasticity in response to light in seedlings of four Iberian forest tree species. Tree Physiol 26:1425–1433
Scheiner SM (2001) MANOVA: multiple response variables and multispecies interactions. In: Scheiner SM, Gurevitch J (eds) Design and analysis of ecological experiments, 2nd edn. Oxford University Press, Oxford
Serra-Diaz JM, Ninyerola M, Lloret F (2012) Coexistence of Abies alba (Mill.)–Fagus sylvatica (L.) and climate change impact in the Iberian Peninsula: a climatic-niche perspective approach. Flora 207:10–18
Smith WK, Berry ZC (2013) Sunflecks? Tree Physiol 33:233–237
Susmel L (1957) Premesse storiche-climatiche e bio-ecologiche alla selvicoltura della foresta montana appenninica. In: Atti Accademia Economico-Agraria de Georgofili, Firenze
Tcherkez G, Hodges M (2007) How stable isotopes may help to elucidate primary nitrogen metabolism and its interaction with (photo)respiration in C3 leaves. J Exp Bot 59(7):1685–1693
Tomlinson KW, O’Connor TG (2004) Control of tiller recruitment in bunchgrasses: uniting physiology and ecology. Funct Ecol 18(4):489–496
Warren CR, Mcgrath JF, Adams MA (2001) Water availability and carbon isotope discrimination in conifers. Oecologia 127:476–486
Way DA, Pearcy RW (2012) Sunflecks in trees and forests: from photosynthetic physiology to global change biology. Tree Physiol 32:1066–1081
Welander NT, Ottosson B (2000) The influence of low light, drought and fertilization on transpiration and growth in young seedlings of Quercus robur L. For Ecol Manag 127:139–151
Yakir D, Israeli Y (1995) Reduced solar irradiance effects on net primary productivity (NPP) and the δ13C and δ18O values in plantations of Musa sp., Musaceae. Geochim Cosmochim Acta 59(10):2149–2151
Acknowledgments
This research was supported by the Pollino National Park in the framework of the strategic project “Un laboratorio naturale permanente nel Parco Nazionale del Pollino”, local supervisor Prof. Marco Borghetti. Mr. Luciano Spaccino is duly acknowledged for his skilfulness in IRMS analyses.
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Communicated by Rainer Matyssek.
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Ripullone, F., Gentilesca, T., Lauteri, M. et al. Apical dominance ratio as an indicator of the growth conditions favouring Abies alba natural regeneration under Mediterranean environment. Eur J Forest Res 135, 377–387 (2016). https://doi.org/10.1007/s10342-016-0941-3
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DOI: https://doi.org/10.1007/s10342-016-0941-3