STUDY OF NATURAL REGENER STATUS OF YEW TREE (TAXUS BACCATA L.) IN ARASBARAN FORESTS (CASE STUDY IN ILGANA CHAI AREA AND HORAND AREA)

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PAYAM H.; FALLAHCHAI M.M.; EBADY A.; OMIDVAR A.

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Journal: JOURNAL OF BIOLOGY SCIENCE Year:2012 | Volume:5 | Issue:SUPPLEMENT 4 (SERIES NO. 19) Page(s): 15-34

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Title

STUDY OF NATURAL REGENER STATUS OF YEW TREE (TAXUS BACCATA L.) IN ARASBARAN FORESTS (CASE STUDY IN ILGANA CHAI AREA AND HORAND AREA)

Author(s)

PAYAM H. | FALLAHCHAI M.M. | EBADY A. | OMIDVAR A. | Issue Writer Certificate

Keywords

YEW TREEQ3

ARASBARANQ3

SELECTIVE SAMPLINGQ2

NATURAL REGENERQ2

Abstract

YEW TREE (Taxus baccata L.) is among limited prickly trees native to Iran and among valuable, rare species of ARASBARAN forests which remained from vegetations of third geological period which unfortunately are threeteng to extinct due to changed climatic conditions and excessive exploitations and grazing. To study NATURAL REGENERation status of YEW TREE in ARASBARAN forests, two vegetation area of Kalale in Ilgana chai and growing place of Kouran in Horand were selected. Sampling method was SELECTIVE SAMPLING which totally 43 sample plot of 1000 m2 area and 43 micro plots of 100 m2 were harvested in nested form. In major sample plots, geographic and ecological properties, forestery characteristics of stands containing YEW TREEs and qualitative, quantitative properties of basis were recorded. In micro plots, qualitative properties of stands containing YEW TREEs and other species including origin of regener (seedlings, coppice), saplings health and freshness in different height class were determined. Then regeneration qualitative properties of YEW TREEs were compared by using Chi – Square, statistic test and based on separating groups of gradient, direction and altitude from sea level. In addition YEW TREE and other species NATURAL REGENERation relation to growth place factors were evaluated. Regeneration studies indicated that in each hectare of studied regions, there are 500 saplings of YEW TREEs and 4402 saplings of other species and in terms of YEW TREEs grow from, there were 71.6 % coppice basis and 28.47 % seedling and 44.1 % were observed with coppices origin. Meanwhile 60 % of other species regeneration was observed with seedling origin which indicates that YEW TREE and other species of ARASBARAN forest have inclination towards seedling which will assure their constancy, continuity and expansion due to seedling regener. Regeneration relation to growth place factors indicates that greatest YEW TREE regenerations are taking place in studied growth place in northern slopes and closed to half closed canopy is 50 – 90 % and herbal layer is lower than 10 % and is placed in thickness amplitude of 1–2 diameter in humus and leaf litter. Qui–Square statistic test has shown significant difference in various conditions to compare YEW TREE regeneration qualitative properties. So that by comparing each of gained qualitative properties of YEW TREE regeneration in studied regions in terms of altitude from sea level and different direction of amplitudes indicated that there is significant difference between YEW TREE regeneration origin with 95 % probability. But there is no significant difference between YEW TREE saplings health and freshness with 95 % probability. In addition, it was indicated that there is no significant difference between YEW TREE regeneration qualitative properties in terms of various grades of amplitude.

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APA: Copy

PAYAM, H., FALLAHCHAI, M.M., EBADY, A., & OMIDVAR, A.. (2012). STUDY OF NATURAL REGENER STATUS OF YEW TREE (TAXUS BACCATA L.) IN ARASBARAN FORESTS (CASE STUDY IN ILGANA CHAI AREA AND HORAND AREA). JOURNAL OF BIOLOGY SCIENCE, 5(SUPPLEMENT 4 (SERIES NO. 19)), 15-34. SID. https://sid.ir/paper/164261/en

Vancouver: Copy

PAYAM H., FALLAHCHAI M.M., EBADY A., OMIDVAR A.. STUDY OF NATURAL REGENER STATUS OF YEW TREE (TAXUS BACCATA L.) IN ARASBARAN FORESTS (CASE STUDY IN ILGANA CHAI AREA AND HORAND AREA). JOURNAL OF BIOLOGY SCIENCE[Internet]. 2012;5(SUPPLEMENT 4 (SERIES NO. 19)):15-34. Available from: https://sid.ir/paper/164261/en

IEEE: Copy

H. PAYAM, M.M. FALLAHCHAI, A. EBADY, and A. OMIDVAR, “STUDY OF NATURAL REGENER STATUS OF YEW TREE (TAXUS BACCATA L.) IN ARASBARAN FORESTS (CASE STUDY IN ILGANA CHAI AREA AND HORAND AREA),” JOURNAL OF BIOLOGY SCIENCE, vol. 5, no. SUPPLEMENT 4 (SERIES NO. 19), pp. 15–34, 2012, [Online]. Available: https://sid.ir/paper/164261/en

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