Annual ring analysis of persian oak (Quercus Brantii) to determine periods of stress and tensions on Zagros Forests (case study: forests of Ilam County)

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Research Paper 01/07/2014
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Annual ring analysis of persian oak (Quercus Brantii) to determine periods of stress and tensions on Zagros Forests (case study: forests of Ilam County)

Reza Ahmadi, Hadi Kiadaliri, Asadollah Mataji, Sasanbabaei Kafaki
J. Bio. Env. Sci.5( 1), 378-384, July 2014.
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Goal of this study was to analyze relationships between the annual variability of Persian Oak (Quercus Brantii) tree-ring chronologies and the variability of the main climatic parameters in Zagros forests of Iran. In order to conduct this research, 17 annual ring diskettes of 17 Persian Oak tree collars, in CheghaSabz District of Ilam County, were collected and transferred to laboratory. The measurements of the cores were made with the LINTAB device and TSAP program. Growth status analysis and dendrochronology results indicated that since 2001, growth rate has declined and on the other hand, reduced rate of annual rainfall, temperature rise and increased dust, considering that the area is prone to such factors, have imposed stress in species of Persian Oak. General conclusion drawn is that dominant situation on the study regions, increases the sensitivity of the area towards start of stress and drying and considering changes in climate features and high rate of human activities, reduced growth and consequently start oak wilt and decay and the process is completed by the activity of secondary pests.


Akkemik U. 2014. Dendrochronology (its Principles – Basic – Methods – Application Fields). Istanbul university press, 255-260.

BabayiKafaki S. 2012. Study of Ecological Condition on Quercus Castaneifo Habitat & Causes of Wilt (Case Study: Central Alborz, SavadKouh Area). PhD thesis, Islamic Azad University of Iran, 78-81.

Breda N, Huc R, Granier A, Dreyer E. 2006. Temperate forest trees and stands under severe drought: a review of ecophysiological responses, adaptation processes and long-term consequences. Annals of Forest Science 63, 625–644. http://dx.doi:10.1051/forest:2006042

Denman S, Kirk S, Webber J. 2010. Managing acute Oak decline. Forestry Commission, 4-6.

Drobyshev I‚ Linderson H‚ Sonesson K. 2006. Temporal mortality pattern of pedunculate Oaks in southern Sweden. Dendrochronological‚ 9-12.

Dwyer JP‚ Cutter BE‚ Wetteroff JJ. 1995.  A dendrochronological  study  of  black  a  scarlet  Oak decline in the Missouri Ozarks. Forest Ecology and Management 75‚ 69 – 75. http://dx.doi:10.1016/0378-1127(95)03537-K

FAO, 1994. Decline and dieback of forests. Forest Service, 210-220.

Fatahi M. 1994. Zagros Oak Forests and the Most Important Degradation Factors. Research Institute of Forests and Rangelands Pub. Tehran, 112-115.

Kirilenko AP, Sedjo RA. 2007. Climate change impacts on forestry. PNAS 104, 19697–19702.

Larsen CPS, McDonald GM, 1995. Relationship between tree-ring widths, climate and annual burned in the boreal forest of Alberta, Can J. For. Res 25, 1746-1755.

Nogués Bravo D, Araújo MB, Lasanta T, Lopez Moreno JI. 2008. Climate change in Mediterranean mountains during the 21st Century. Ambio 37, 280– 285. http://dx.doi:10.1579/0044-7447

Parry M, Palutikof J, Hanson C, Lowe J. 2008. Squaring up to reality. Nature reports climate change 2, 68-70. http://dx.doi:10.1038/climate.2008.50

Pittock AB. 1982. Climatic reconstruction from tree-rings. In Climate from tree rings. In Climate from tree rings. Edited by M. K. Hughes, P. m. Kelly, J. R. Pilcher and V. C. LaMarche. Cambridge, England, 62-65.

Purhashemi M, Mohajer MR, Zobeiri M, Zahedi A, Panahi P. 2004. Identification of forest vegetation units in support of government management objectives in Zagros forests, Iran.Scandinavian Journal of Forest Research 4, 72-77. http://dx.doi:10.1080/14004080410034083

Schröter D, Cramer W, Leemans R. 2005. Ecosystem service supply and vulnerability to global change in Europe.Science 5752, 1333-1337. http://dx.doi:10.1126/science.1115233

Schweingruber FH, Bartholin T, Sch¨ar E, Briffa KR. 1988. Radiodensitometric– dendroclimatological conifer chronologies from Lapland  (Scandinavia)  and  the  Alps  (Switzerland). Boreas 17, 559–566.

Sonesson K, Drobyshev I. 2010. Recent advancs on oak decline in southern Sweden. Ecological Bulletins 53, 197 – 207.

Starkey DA, Mangini A, Oliveria F, Clarke S, Bruce B, Kertz R, Menard R. 1999. Forest health evaluation of oak mortality and decline on Ozark National Forest. Forest Health Protection, 29- 31.

Ulbrich U, Brucher T, Fink A, Leckebusch G, Kr¨uger A, Pinto J. 2003. The central European floods in August 2002. Part I: rainfall periods and flood development. Weather 58, 371–376. http://dx.doi:10.1256/wea.61.03A

Van Mantgem PJ, Stephenson NL, Byrne JC, Daniels LD, Franklin JF, Fulé PZ. 2009. Widespread increase of tree mortality rates in the Western United States. Science 323, 521–524. http://dx.doi:10.1126/science.116500

Vogel G. 2002. Labs spared as climate change gets top billing. Science 297, 1256- 1259. http://dx.doi:10.1126/science.297.5585.1256