Leaf mass per area and nitrogen content in cork oak (Quercus suber L.) under a range of climatic stress (drought and temperature stress)
Paper Details
Leaf mass per area and nitrogen content in cork oak (Quercus suber L.) under a range of climatic stress (drought and temperature stress)
Abstract
The determination of the diversity of Cork oak tree (Quercus suber L. ) could be a key factor in understanding the response to climate change. This experiment was carried out on 16 stands of Cork oak. Two areas were identified: The Kroumirie and Relicts areas . We try to understand through this study how these populations persist under adverse conditions (water and temperature stress) to provide valuable background information for the development of appropriate strategies for their conservation and management and to estimate the spatial variability of population growth of Cork oak belonging to two different areas. The climate effect study on leaf mass per area (LMA), dendrometric parameter (diameters in 1,30m (DBH) and height) and nitrogen content (N%) were considered, We observed a significant difference in LMA according to altitude and temperature, highest values were obtained in the sites with a high altitude and low temperatures .There are also a significant correlation between dendrometric parameters and LMA . For nitrogen content, we found negative correlations with LMA values, they are lower in drier and colder sites.
Atkin OK, Atkinson LJ, Fisher R, Campbell CD, Zaragoza-Castells J, Pitchford JW, Woodward FI, Hurry V. 2008. Using temperature-dependent changes in leaf scaling relationships to quantitatively account for thermal acclimation of respiration in a coupled global climate–vegetation model. Glob Change Biol 14, 2709–2726.
Ben M’Hamed M, Abid H, Ben Jamaa LH. 2002. La subéraie tunisienne importance et orientations pour une gestion durable suberaie: biodiversite et paysage. Colloque Vivexpo 2002, La suberaie: biodiversite et paysage vivès – Pyré- nées Orientales – France. Republique Tunisienne, Ministere de l’Agriculture, Tunis, 33.
Jian Q, Keming M, Yuxin Z. 2009. Leaf-trait relationships of Quercus liaotungensis along an altitudinal gradient in Dongling Mountain, Beijing. Ecol Res 24, 1243–1250.
Kanouni MR, Alatou D, Sakr S. 2012. Effects of high temperature on concentrations of soluble sugars and quercitol of Cork oak (Quercus suber) seedlings. International Journal of Management Sciences and Business research 6, 2226-8235.
Kjeldahl J. 1883. A new method for the determination of nitrogen in organic matter. Zeitschreft fur Analytische Chemie 22, 366- 1883.
Mediavilla S, Gallardo-Lopez V, Gonzalez-Zurdo P, Escudero A. 2012. Patterrns of leaf morphology and leaf N content in relation to winter temperatures in three evergreen tree species .International Journal of biometeorology 56,915-926.
Menzel A, Sparks TH, Estrella N, Koch E, Aasa A, Aha R, Alm-Kubler K, Bissoli P,Braslavska O, Briede A.2006. European phenological response to climate change matches the warming pattern. Global Change Biology 12, 1969-1976
Niinemets U. 2001. Global-scale climatic controls of leaf dry mass per area, density, and thickness in trees and shrubs. Ecology 82,453–469.
Ogaya O, Peunelas J, Asensio D , Llusià J. 2011. Chlorophyll fluorescence responses to temperature and water availability in two co-dominant Mediterranean shrub and tree species in a long-term field experiment simulating climate change. Environmental and Experimental Botany 73, 89–93.
Ogaya R, Peñuelas J .2007 .Leaf mass per area ratio in Quercus ilex leaves under a wide range of climatic conditions. The importance of low temperatures. Acta Oecol 31, 168–173.
Oliveira G, Peñuelas J. 2000. Comparative photochemical and phenomorphological responses to winter stress of an evergreen (Quercus ilex L) and a semi-deciduous (Cistus albidus L) Mediterranean woody species. Acta Oecol 21, 97–107.
Selmi K. 2006. Use of the data of the national forest inventory for the monitoring and the management of Cork oak forest in Tunisia. Ann. Inrgref 9, 21-30.
Thomas FM,Blank R, Hartman G. 2002. Abiotic and biotic factors and their interactions as causes of oak decline in Central Europe. For. Path 32 , 277– 307.
Turner IM. 1994a. Sclerophylly: primarily protective? Func. Ecol 8, 669–675.
Turner IM .1994b. A quantitative analysis of leaf form in woody plants from the world’s major broadleaved forest types. J Biogeogr 21,413–419.
Uğurlu E, Oldeland J. 2010. Species response curves of oak species along climatic gradients in Turkey. Int J Biometeorol. doi:10.1007/s00484-010-0399-9.
Urbieta IR, Zavala MA, Maran T, 2008. Human and non-human determinants of forest composition in southern Spain: evidence of shifts towards Cork oak dominance as a result of management over the past century. Journal of Biogeography 35, 1688– 1700.
Wright IJ, Reich PB, Westoby M et al .2004. The worldwide leaf economics spectrum. Nature 428, 821–827.
Wright IJ, Westoby M, Reich PB. 2002. Convergence towards higher leaf mass per area in dry and nutrient-poor habitats has different consequences for leaf life span. Journal of Ecology 90, 534–543.
Tlili Nesrine, Ennajah Amel, Rachid Loukehaich, Youssef Ammari (2014), Leaf mass per area and nitrogen content in cork oak (Quercus suber L.) under a range of climatic stress (drought and temperature stress); JBES, V5, N1, July, P343-351
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