AN INVESTIGATION ON THE FOREST STRUCTURE AND TREES SPATIAL PATTERN IN FAGUSORIENTALIS STANDS OF HYRCANIAN FORESTS OF IRAN (CASE STUDY: GORAZBON DISTRICT OF KHEYRUD FOREST)

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NOURI ZAHRA; ZOBEIRI MAHMOOD; FEGHHI JAHANGIR; MARVIE MOHADJER MOHAMMAD REZA

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Journal: Journal of Natural Environment Year:2013 | Volume:66 | Issue:1 Page(s): 113-125

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Title

AN INVESTIGATION ON THE FOREST STRUCTURE AND TREES SPATIAL PATTERN IN FAGUSORIENTALIS STANDS OF HYRCANIAN FORESTS OF IRAN (CASE STUDY: GORAZBON DISTRICT OF KHEYRUD FOREST)

Author(s)

NOURI ZAHRA | ZOBEIRI MAHMOOD | FEGHHI JAHANGIR | MARVIE MOHADJER MOHAMMAD REZA | Issue Writer Certificate

Keywords

FOREST STRUCTUREQ2

SPATIAL PATTERNQ2

KQ2

RIPELY INDEXQ2

FAGUSORIENTALIS STANDQ2

HYRCANIAN FORESTQ2

IRANQ2

Abstract

Beech forests in midland areas of HYRCANIAN FORESTs of IRAN are the most important forests having the highest degree of naturalness. These forests are the valuable source of wood production and other forest products. One of the most important characteristics of plant communities is the SPATIAL PATTERN of trees. Ecological process in forest ecosystems are directly influenced by the SPATIAL PATTERNs of trees and environmental constraints. Quantifying of spatial structure is an important component in describing natural ecosystems and their biodiversity. For appropriate management of forest ecosystems informative indices with minimum cost and time are needed. The aim of this study is to analyze the stand structure and SPATIAL PATTERN in mixed beech forests. Data were collected from a 48 ha compartment in the educational and experimental forests of University of Tehran. Species and DBH of all trees with DBH > 7.5 cm were recorded and also the position of each tree was determined using azimuth and distance in order to prepare a tree position map. Using the K-Ripely function, the SPATIAL PATTERNs of Fagusorientalis, Carpinusbetulus, Acer velotinum and Alnussubcordata were determined as clustered. Results of the K-Ripely function were compared and confirmed with nearest neighbor of Clark & Evans index, which was considered as a control index. This research emphasizes on the spatial statistics application for tree SPATIAL PATTERN investigation and the applied index and function in it provide useful information for sustainable forest management. Indeed, to be aware of natural process in forest ecosystems, forest managers need to evaluate natural FOREST STRUCTURE and use the values of structure indices and function as reference for sustainable and close to nature management.

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APA: Copy

NOURI, ZAHRA, ZOBEIRI, MAHMOOD, FEGHHI, JAHANGIR, & MARVIE MOHADJER, MOHAMMAD REZA. (2013). AN INVESTIGATION ON THE FOREST STRUCTURE AND TREES SPATIAL PATTERN IN FAGUSORIENTALIS STANDS OF HYRCANIAN FORESTS OF IRAN (CASE STUDY: GORAZBON DISTRICT OF KHEYRUD FOREST). JOURNAL OF NATURAL ENVIRONMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), 66(1), 113-125. SID. https://sid.ir/paper/194900/en

Vancouver: Copy

NOURI ZAHRA, ZOBEIRI MAHMOOD, FEGHHI JAHANGIR, MARVIE MOHADJER MOHAMMAD REZA. AN INVESTIGATION ON THE FOREST STRUCTURE AND TREES SPATIAL PATTERN IN FAGUSORIENTALIS STANDS OF HYRCANIAN FORESTS OF IRAN (CASE STUDY: GORAZBON DISTRICT OF KHEYRUD FOREST). JOURNAL OF NATURAL ENVIRONMENT (IRANIAN JOURNAL OF NATURAL RESOURCES)[Internet]. 2013;66(1):113-125. Available from: https://sid.ir/paper/194900/en

IEEE: Copy

ZAHRA NOURI, MAHMOOD ZOBEIRI, JAHANGIR FEGHHI, and MOHAMMAD REZA MARVIE MOHADJER, “AN INVESTIGATION ON THE FOREST STRUCTURE AND TREES SPATIAL PATTERN IN FAGUSORIENTALIS STANDS OF HYRCANIAN FORESTS OF IRAN (CASE STUDY: GORAZBON DISTRICT OF KHEYRUD FOREST),” JOURNAL OF NATURAL ENVIRONMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), vol. 66, no. 1, pp. 113–125, 2013, [Online]. Available: https://sid.ir/paper/194900/en

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