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Effect of planting interval and soil type on qualitative and quantitative characteristics of poplar (Populus nigra) plantations in Diwandareh (Kurdistan province, western Iran)

Author

Listed:
  • A. Alijanpour

    (Faculty of Natural Resources, University of Urmia, Iran)

  • A.B. Shafiei

    (Faculty of Natural Resources, University of Urmia, Iran)

  • R. Latify

    (Faculty of Natural Resources, University of Urmia, Iran)

Abstract

We investigated the effects of planting interval and soil type on qualitative and quantitative characteristics of seven poplar (Populus nigra) plantations with 1 × 1 m and 2 × 2 m planting intervals in Diwandareh. Parameters including diameter at breast height (DBH), total height, crown height, stem height, number of suckers and crown vitality were measured and compared regarding soil characteristics and planting intervals. A transect method with 10% sampling intensity was used for collecting data. Results showed significant differences in the qualitative and quantitative characteristics of poplar trees between planting intervals and soil physical characteristics. An increase of the interval decreased total height and crown height, while stem height, number of suckers and crown vitality of poplar trees increased. But DBH of poplar trees did not increase in these areas. Vegetative characteristics showed the strongest correlation with physical properties of soil rather than with the chemical ones. Soil properties had higher effects on quantitative and qualitative characteristics of the studied stands in comparison with planting intervals.

Suggested Citation

  • A. Alijanpour & A.B. Shafiei & R. Latify, 2014. "Effect of planting interval and soil type on qualitative and quantitative characteristics of poplar (Populus nigra) plantations in Diwandareh (Kurdistan province, western Iran)," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 60(3), pages 89-95.
    • Handle: RePEc:caa:jnljfs:v:60:y:2014:i:3:id:9-2014-jfs
    DOI: 10.17221/9/2014-JFS
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