EFFECT OF PHYSIOGRAPHICAL FACTORS ON PLANT SPECIES DIVERSITY IN FORESTS OF WEST BODJNOURD

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JAFARI J.; TABARI KOUCHAKSARAEI M.; HOSEINI S.M.; KOOCH Y.

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Journal: Journal of Wood and Forest Science and Technology Year:2016 | Volume:22 | Issue:4 Page(s): 223-238

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Title

EFFECT OF PHYSIOGRAPHICAL FACTORS ON PLANT SPECIES DIVERSITY IN FORESTS OF WEST BODJNOURD

Author(s)

JAFARI J. | TABARI KOUCHAKSARAEI M. | HOSEINI S.M. | KOOCH Y. | Issue Writer Certificate

Keywords

HYRCANIAN VEGETATIONQ2

PLANT DIVERSITYQ2

TOPOGRAPHY FACTORSQ2

SPECIES SIMILARITYQ2

Abstract

Background and objectives: This investigation has been done to determining plant species diversity influenced by physiographical factors in forests of west Bodjnourd (North of Iran). PLANT DIVERSITY is as affected by land physiographical factors (slope, slope steep, elevation). In this regard, several researches in the world and Iran have been conducted but no report has been published related to forests of west Bojnourd.Materials and methods: To cope with the aim of study, 220 ha of these forests (called Joezak-Darkesh forest) at 1400-2000 m a.s.l. with different geographical aspects and slope steeps of 0-80 percent were identified. Number of 55 sample plots of × 20 20 m as random-systematic distribution was selected to determination of the trees and shrubs. In addition, within each plot, 9 micro-plots 2×2 m were confined to recognition of ground non-woody flora.Results: The highest SPECIES SIMILARITY values were obtained respectively, between elevation classes of 1400-1600 m and 1600-1800 m, eastern and western slopes, 0- 20 and 50-80% slope steeps. Indices of diversity, richness and evenness did not differ with increasing slope steep. Maximum and minimum of Simpson's diversity and Margalef's richness were found in the 1400-1600 and 1800-2000, respectively. The highest and the lowest Simpson's diversity were observed in eastern slope and northern slope, respectively. Conclusion: With increasing elevation, PLANT DIVERSITY and species richness decreased; likewise, PLANT DIVERSITY decreased in northern slopes and increased in eastern slopes. The presence of some vegetation elements associated with HYRCANIAN VEGETATION in this region appears a figure of vegetation which from viewpoint of phytogeographic requests deeper and more completely investigations by botanists and phytogeographic specialists.

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APA: Copy

JAFARI, J., TABARI KOUCHAKSARAEI, M., HOSEINI, S.M., & KOOCH, Y.. (2016). EFFECT OF PHYSIOGRAPHICAL FACTORS ON PLANT SPECIES DIVERSITY IN FORESTS OF WEST BODJNOURD. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, 22(4), 223-238. SID. https://sid.ir/paper/156932/en

Vancouver: Copy

JAFARI J., TABARI KOUCHAKSARAEI M., HOSEINI S.M., KOOCH Y.. EFFECT OF PHYSIOGRAPHICAL FACTORS ON PLANT SPECIES DIVERSITY IN FORESTS OF WEST BODJNOURD. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY[Internet]. 2016;22(4):223-238. Available from: https://sid.ir/paper/156932/en

IEEE: Copy

J. JAFARI, M. TABARI KOUCHAKSARAEI, S.M. HOSEINI, and Y. KOOCH, “EFFECT OF PHYSIOGRAPHICAL FACTORS ON PLANT SPECIES DIVERSITY IN FORESTS OF WEST BODJNOURD,” JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, vol. 22, no. 4, pp. 223–238, 2016, [Online]. Available: https://sid.ir/paper/156932/en

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