List of Articles Control forest

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  1 - The effect of single-tree selection cutting on tree regeneration diversity (Case study: Nav of Asalem forest, western Guilan, Iran)
  Zahra Moradi ali Salehi hassan Pourbabaei Jamshid Eslamdoust
  In this study, effect of gap sizes, slope and aspect on diversity of tree regeneration were investigated in mixed beech, Nav of Asalem, Guilan province. For this purpose, 15 forest gaps with three different sizes included small (100-200 m2), medium size (200-300 m2) and More

  In this study, effect of gap sizes, slope and aspect on diversity of tree regeneration were investigated in mixed beech, Nav of Asalem, Guilan province. For this purpose, 15 forest gaps with three different sizes included small (100-200 m2), medium size (200-300 m2) and large size (300-400 m2) with 5 replicates were selected. Moreover, the control points with the same sizes were also chosen under the trees canopy. Slope were categorized into four slope classes (20-30, 31-40, 41-50 and %50<). The percentage of regenerations cover have been recorded within 4 m2 micro-plots. Results showed that the Simpson, Shannon-Wiener and richness significantly increased by increasing in the size of the gap. Between geographical aspect and slopes, the highest indices were related to Shannon-Wiener indices. The maximum of Shannon-Wiener and richness were related in north east (2.203, 5) aspect and in slope of 41-50% (2.18 and 5). The maximum of evenness indices is related to Camargo index in east (0.88) aspect and in 40-31 % (0.86) slop. Analysis of variance showed no significant difference among the indices in different geographical aspects and different slopes. Manuscript profile