Study of the altitude effect on abundance and composition of tree regeneration in natural forest stands of Astara

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HASSANZAD NAVROODI I.; Safarkar T.

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Journal: Journal of Plant Research Year:2019 | Volume:31 | Issue:4 Page(s): 905-917

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Title

Study of the altitude effect on abundance and composition of tree regeneration in natural forest stands of Astara

Author(s)

HASSANZAD NAVROODI I. | Safarkar T. | Issue Writer Certificate

Keywords

AstaraQ1

altitudeQ2

regenerationQ1

tree speciesQ1

Abstract

In this study, quantitative and composition status of trees regeneration in natural forest stands of Astara region (watershed 1) were evaluated. The study area was a less disturbed habitat. After selecting the study area and placing it on the map, sampling was done by systematic random method. The sample plots were circular having an area of 0. 01 ha. Pierson's correlation coefficient was used to analyze the data. The results demonstrated that sapling density of total species and the number of tree regeneration per hectare were increased with increasing of altitude from sea level. The results also showed that there are significant correlation between the numbers of beech, hornbeam and mean total tree regeneration with altitude from sea level. The maximum and minimum number of regeneration were observed at the classes of "tree height<1. 30 m" and "2. 5-5. 5 cm", respectively. At the altitude of 600 m above sea level, the maximum number of regeneration at the diameter classes of "0-2. 5 cm" and "tree height < 1. 30 m" were related to "hornbeam" and "Cappadocian maple", respectively. At the altitude of 1000 m above sea level, the highest number of regeneration at class of "tree height < 1. 30 m" was belonging to the hornbeam. In other cases, beech had the highest number of regeneration. As a result, more than 75% and 10% of regeneration was belonging to beech and hornbeam, respectively. Overall, more than 90% tree regeneration was belonging to species of beech, hornbeam and alder.

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APA: Copy

HASSANZAD NAVROODI, I., & Safarkar, T.. (2019). Study of the altitude effect on abundance and composition of tree regeneration in natural forest stands of Astara. JOURNAL OF PLANT RESEARCH (IRANIAN JOURNAL OF BIOLOGY), 31(4 ), 905-917. SID. https://sid.ir/paper/364469/en

Vancouver: Copy

HASSANZAD NAVROODI I., Safarkar T.. Study of the altitude effect on abundance and composition of tree regeneration in natural forest stands of Astara. JOURNAL OF PLANT RESEARCH (IRANIAN JOURNAL OF BIOLOGY)[Internet]. 2019;31(4 ):905-917. Available from: https://sid.ir/paper/364469/en

IEEE: Copy

I. HASSANZAD NAVROODI, and T. Safarkar, “Study of the altitude effect on abundance and composition of tree regeneration in natural forest stands of Astara,” JOURNAL OF PLANT RESEARCH (IRANIAN JOURNAL OF BIOLOGY), vol. 31, no. 4 , pp. 905–917, 2019, [Online]. Available: https://sid.ir/paper/364469/en

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