Evaluation of technical defects of poplar farmings in Mazandaran province

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ASADI F.; ESPAHBODI K.; SADATI S.E.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Iranian journal of Forest Year:2019 | Volume:11 | Issue:3 Page(s): 401-414

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Title

Evaluation of technical defects of poplar farmings in Mazandaran province

Author(s)

ASADI F. | ESPAHBODI K. | SADATI S.E. | Issue Writer Certificate

Keywords

Path analysisQ1

PoplarQ1

Wood farmingQ3

Wood productionQ3

SpacingQ3

Abstract

he inadequate production of existing Poplar cultivations can be due to unfavorable planting, maintenance, and harvesting operations. In order to clarify the defects in operations, the diameter, height, wood volume and yearly wood volume growth per hectare in thirty stands of Poplar trees were measured. Additionally, primary planting Spacing, tree number per hectare, etc. were determined by a field survey. The causal and noncausal relationships between the independent variables and the volume growthand. the direct and indirect effects of each component on growth were determined. were. Results showed that the area of the stands varied from 0. 3 to 4 hectares. The planting Spacing was less than 2×2 m for over 60 percent of the stands, . In most of the stands the percentage of survival was less than 50%. Only 10% of the stands had 25 m 3 wood volume per year and per hectare. . Principle component analysis showed that decreasing the planting distance were the most important parameters reducing the annual growth. Irrigation intensity represented the highest positive correlation with annual growth. Also, initial density displayed the highest negative correlation with diameter and height. Similar results were obtained through Path analysis. . According to the results, the main defects of Poplar farming are low Spacing and more irrigation intervals, respectively.

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APA: Copy

ASADI, F., ESPAHBODI, K., & SADATI, S.E.. (2019). Evaluation of technical defects of poplar farmings in Mazandaran province. IRANIAN JOURNAL OF FOREST, 11(3 ), 401-414. SID. https://sid.ir/paper/123182/en

Vancouver: Copy

ASADI F., ESPAHBODI K., SADATI S.E.. Evaluation of technical defects of poplar farmings in Mazandaran province. IRANIAN JOURNAL OF FOREST[Internet]. 2019;11(3 ):401-414. Available from: https://sid.ir/paper/123182/en

IEEE: Copy

F. ASADI, K. ESPAHBODI, and S.E. SADATI, “Evaluation of technical defects of poplar farmings in Mazandaran province,” IRANIAN JOURNAL OF FOREST, vol. 11, no. 3 , pp. 401–414, 2019, [Online]. Available: https://sid.ir/paper/123182/en

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