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Spatial patterns of trees from different development stages in mixed temperate forest in the Hyrcanian region of Iran

Author

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  • Maryam KAZEMPOUR LARSARY

    (Department of Forestry, Faculty of Natural Resources, University of Guilan, Somehsara, Iran)

  • Kambiz TAHERI ABKENAR

    (Department of Forestry, Faculty of Natural Resources, University of Guilan, Somehsara, Iran)

  • Hassan POURBABAEI

    (Department of Forestry, Faculty of Natural Resources, University of Guilan, Somehsara, Iran)

  • David POTHIER

    (Centre d'étude de la forêt (CEF), Québec, Canada)

  • Beitollah AMANZADEH

    (Center of Research and Education of Agriculture and Natural Resources of Guilan Province, Rasht, Iran)

Abstract

Mixed beech (Fagus orientalis Lipsky) forests are very important to the Hyrcanian region of Iran because of their high degree of naturalness and as a source of wood production. Determination of tree spatial patterns over development stages is a first step in understanding underlying processes driving regeneration and forest dynamics. Spatial patterns of trees from three development stages (initial, optimal and decay) of an untouched mixed beech forest were quantified within three 1-ha plots. To prepare the stem maps, we measured each tree with a DBH larger than 7.5 cm using the azimuth-distance method. Spatial patterns were then analysed using Ripley's K-function. Results indicated that the number of trees decreased from the initial stage to the decay stage, with tree spatial patterns being aggregated, slightly aggregated and highly randomized for initial, optimal and decay stages, respectively. Differences in spatial patterns among the development stages are not unexpected considering that such unmanaged forests are driven by gap dynamics which results in interactions between gap filling individuals.

Suggested Citation

  • Maryam KAZEMPOUR LARSARY & Kambiz TAHERI ABKENAR & Hassan POURBABAEI & David POTHIER & Beitollah AMANZADEH, 2018. "Spatial patterns of trees from different development stages in mixed temperate forest in the Hyrcanian region of Iran," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 64(6), pages 260-270.
    • Handle: RePEc:caa:jnljfs:v:64:y:2018:i:6:id:7-2018-jfs
    DOI: 10.17221/7/2018-JFS
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    References listed on IDEAS

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    1. Guoyu Lan & Stephan Getzin & Thorsten Wiegand & Yuehua Hu & Guishui Xie & Hua Zhu & Min Cao, 2012. "Spatial Distribution and Interspecific Associations of Tree Species in a Tropical Seasonal Rain Forest of China," PLOS ONE, Public Library of Science, vol. 7(9), pages 1-9, September.
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