Response of Quercus pyrenaica (melojo oak) to soil water deficit: a case study in Spain

  • Virginia Hernández-Santana
  • José Martínez-Fernández
  • Carlos Morán
  • Ana Cano
Original Paper


In the present study, carried out from 2004 to 2006, leaf and stem water potential and stem water content were measured in Quercus pyrenaica Willd. individuals in an experimental forested catchment located in Central Western Spain under Mediterranean subhumid conditions. These indicators of tree water status were compared with soil moisture contents measured in the same area from 0 to 1 m depth and from 0 to 2.5 m depth during the last year of the study. The objectives were to clarify the seasonal and year-to-year variations in tree water status, to examine applicability of stem water content as useful water stress indicator and to discuss how deep soil water and root uptake contribute to survival during the long dry summer. Seasonal variations in the tree variables measured revealed a typical pattern, with maximum values at the end of spring followed by a progressive decline during the summer drought in response to the decrease in soil water content (almost exhausted at 0–100 cm depth). The relatively high values and the non-significant variation in predawn leaf water potentials (except for 2005, which was exceptionally dry) indicate that no clear water stress situations occurred. This may be explained in terms of a progressive absorption of water from the deeper layers. The results also suggest that the stem water content is a more sensitive indicator of long-term water limitation than the other variables measured.


Leaf water potential Mediterranean oaks Soil water content Stem water content Stem water potential 



This study was fully supported by the Spanish Ministry of Science and Technology (REN2003–00381 Project) and the Spanish Ministry of Environment (RESEL Project). The authors would like to thank two anonymous referees for their useful comments on the manuscript.


  1. Abrams MD (1990) Adaptations and responses to drought in Quercus species of North America. Tree Physiol 7:227–238PubMedGoogle Scholar
  2. Aranda I, Gil L, Pardos J (1996) Seasonal water relations of three broadleaved speces (Fagus sylvatica L., Quercus petraea (Mattuschka) Liebl. and Quercus pyrenaica Willd.) in a mixed stand in the centre of the Iberian Peninsula. For Ecol Manage 84:219–229CrossRefGoogle Scholar
  3. Begg JE, Turner NC (1970) Water potential gradients in field tobacco. Plant Phys 46:343–346CrossRefGoogle Scholar
  4. Choné X, Van Leeuwen C, Dubourdieu D, Gaudillére JP (2001) Stem water potential is a sensitive indicator of grapevine water status. Ann Bot 87:477–483CrossRefGoogle Scholar
  5. Constantz J, Murphy F (1990) Monitoring storage moisture in tree using time domain reflectometry. J Hydrol 119:31–42CrossRefGoogle Scholar
  6. Cubera E, Moreno G (2007) Effect of single Quercus ilex trees upon spatial and seasonal changes in soil water content in Dehesas of central western Spain. Ann For Sci (in press)Google Scholar
  7. David TS, Ferreira MI, Cohen S, Pereira JS, David JS (2004) Constraints on transpiration from an evergreen oak tree in southern Portugal. Agric For Metereol 122:193–205CrossRefGoogle Scholar
  8. Donovan LA, Richards JH, Linton MJ (2003) Magnitude and mechanisms of disequilibrium between predawn plant and soil water potentials. Oecology 84:463–470Google Scholar
  9. Gallego HA, Rico M, Moreno G, Santa Regina I (1994) Leaf water potential and stomatal conductance in Quercus pyrenaica Willd forests: vertical gradients and response to environmental factors. Tree Physiol 14:1039–1047PubMedGoogle Scholar
  10. Gómez Manzaneque F et al (1998) Bosques ibéricos: una interpretación geobotánica. Planeta, Barcelona, 597 pGoogle Scholar
  11. Holbrook NM, Sinclair TR (1992) Water balance in the arborescent palm, Sabal palmetto, II. Transpiration and water storage. Plant Cell Environ 15:401–409CrossRefGoogle Scholar
  12. Infante JM, Rambal S, Joffre R (1997) Modelling transpiration in holm-oak savannah: scaling up from the leaf to the tree scale. Agric For Metereol 87:273–289CrossRefGoogle Scholar
  13. Irvine J, Grace J (1997) Non-destructive measurement of stem water content by time domain reflectometry using short probes. J Exp Bot 48:813–818CrossRefGoogle Scholar
  14. Kobayashi Y, Tanaka T (2001) Water flow and hydraulic characteristics of japanese red pine and oak trees. Hydrol Process 15:1731–1750CrossRefGoogle Scholar
  15. Kravka M, Krejzar T, Cermak J (1999) Water content in stem wood of large pine and spruce trees in natural forests in central Sweden. Agric For Metereol 98–99:555–562CrossRefGoogle Scholar
  16. Kume T, Takizawa H, Yoshifuji N, Tanaka K, Tantasirin C, Tanaka N, Suzuki M (2007) Impact of soil drought on sap flow and water status of evergreen trees in a tropical monsoon forest in northern Thailand. For Ecol Manage 238:220–230CrossRefGoogle Scholar
  17. Lubczynski MC, Gurwin J (2005) Integration of various data sources for transient groundwater modelling with spatio-temporally variable fluxes-Sardon study case, Spain. J Hydrol 306:71–96CrossRefGoogle Scholar
  18. Martínez Fernández J, Ceballos Barbancho A, Luengo Ugidos MA, Sanchez Ortega V (2003) Dinámica del agua en el suelo de un bosque de Quercus pyrenaica en el Sistema Central. en Arozena ME, Beltrán E, Dorta P (Coords.) La Biogeografía: ciencia geográfica y ciencia biológica. Servicio de Publicaciones Universidad de La Laguna, pp 353–366Google Scholar
  19. Martínez-Vilalta J, Prat E, Oliveras I, Piñol J (2002) Xylem hydraulic properties of roots and stems of nine Mediterranean woody species. Oecologia 133:19–29CrossRefGoogle Scholar
  20. Mediavilla S, Escudero A (2003) Stomatal responses to drought at a Mediterranean site: a comparative study of co-occurring woody species differing in leaf longevity. Tree Physiol 23:987–996PubMedGoogle Scholar
  21. Mediavilla S, Escudero A (2004) Stomatal responses to drought of mature trees and seedlings of two co-occurring Mediterranean oaks. For Ecol Manage 187:281–294CrossRefGoogle Scholar
  22. Moreno G, Gallardo JF, Ingelmo F, Cuadrado S, Hernández J (1996) Soil water budget in 4 Quercus pyrenaica forests across a rainfall gradient. Arid Soil Res Rehabil 10:65–84Google Scholar
  23. Nadler A, Raveh E, Yermiyahu U, Green SR (2003) Evaluation of TDR use to monitor water content in stem of lemon trees and soil and their response to water stress. Soil Sci Soc Am J 67:437–488Google Scholar
  24. Nadler A, Raveh E, Yemiyahu U, Green S (2006) Stress induced water content variations in mango stem by time domain reflectometry. Soil Sci Soc Am J 70:510–520CrossRefGoogle Scholar
  25. Nardini A, Lo Gullo MA, Salleo S (1999) Competitive strategies for water availability in two Mediterranean Quercus species. Plant Cell Environ 22:109–116CrossRefGoogle Scholar
  26. Ogaya R, Peñuelas J (2003) Comparative field study of Quercus ilex and Phillyrea latifolia: photosynthetic response to experimental drought conditions. Environ Exp Bot 50:137–148CrossRefGoogle Scholar
  27. Raschi A, Tognetti R, Ridder HW, Beres C (1995) Water in the stems of sessile oak (Quercus petraea) assessed by computer tomography with concurrent measurements of sap velocity and ultrasound emission. Plant Cell Environ 18:545–554CrossRefGoogle Scholar
  28. Rico M, Gallego HA, Moreno G, Santa Regina I (1996) Stomatal response of Quercus pyrenaica to environmental factors in 2 sites differing in their annual rainfall (Sª de Gata, Spain). Ann For Sci 53:221–234CrossRefGoogle Scholar
  29. Rodá F, Retana J, Gracia CA, Bellot J (eds) (1999) Ecology of Mediterranean evergreen oak forests. Springer, Berlin, 373 pGoogle Scholar
  30. Rodríguez-Iturbe I, Porporato A (2005) Ecohydrology of water-controlled ecosystems: soil moisture and plant dynamics. Cambridge University Press, London, 460 pGoogle Scholar
  31. Scholander PF, Hammel HT, Bradstreet ED, Hemmingsen EA (1965) Sap pressure in vascular plants. Science 148:339–346PubMedCrossRefGoogle Scholar
  32. Silla F, Escudero A (2006) Coupling N cycling and N productivity in relation to seasonal stress in Quercus pyrenaica Willd. saplings. Plant Soil 282:301–311CrossRefGoogle Scholar
  33. Silva JS, Rego FC, Martins-Louçao MA (2003) Root distribution of Mediterranean woody plants. Introducing a new empirical model. Plant Biosyst 137(1):63–72Google Scholar
  34. Sparks JP, Campbell GS, Black RA (2001) Water content, hydraulic conductivity, and ice formation in winter status of Pinus contorta: a TDR case study. Oecologia 127:468–475CrossRefGoogle Scholar
  35. Stratton L, Goldstein G, Meinzer FC (2000) Stem water storage capacity and efficiency of water transport: their functional significance in a Hawaian dry forest. Plant Cell Environ 23:99–106CrossRefGoogle Scholar
  36. Swiecki TJ, Bernhardt E (2001) Evaluation of stem water potential and other tree and stand variables as risk factors for Phytophtora canker development in coast live oak and tanoak. In: Proceedings of the fifth symposium on oak woodlands: oaks in California’s changing landscape. Gen. Tech. Rep. PSW-GTR-184. Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture, Albany, pp 787–798Google Scholar
  37. Tyree MT, Ewers FW (1991) The hydraulic architecture of trees and other woody plants. New Phytol 119:345–360CrossRefGoogle Scholar
  38. Waring RH, Running SW (1978) Sapwood water storage: its contribution to transpiration and effect upon water conductance through the stems of old-growth Douglas-fir. Plant Cell Environ 1:131–140CrossRefGoogle Scholar
  39. Wullschleger SD, Hanson PJ, Todd DE (1996) Measuring stem water content in four deciduous hardwood with a time domain reflectometry. Tree Physiol 16:809–815PubMedGoogle Scholar

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • Virginia Hernández-Santana
    • 1
  • José Martínez-Fernández
    • 1
    • 2
  • Carlos Morán
    • 1
  • Ana Cano
    • 1
  1. 1.Departamento de GeografíaUniversidad de SalamancaSalamancaSpain
  2. 2.Centro Hispano Luso de Investigaciones Agrarias (CIALE)Universidad de SalamancaVillamayor, SalamancaSpain

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