The effect of single-tree selection method on some quantitative and qualitative ‎characteristics and soil of Shafarood forests

Document Type : Scientific article

Authors

1 PhD. of Forestry, Department of Forestry, Faculty of Natural Resources, Urmia University, Urmia, I. R. ‎Iran‎

2 Professor, Department of Forestry, Faculty of Natural Resources, Urmia University, Urmia, I. R. Iran‎

3 PhD. of Forestry, Department of Forestry, Faculty of Natural Resources, Urmia University, Urmia, I. R. ‎Iran

Abstract

The main purpose of this study is to evaluate the effects of single-tree selection method on some quantitative and qualitative characteristics of Shafarood forest ecosystems and compare these indicators with control forest area in that area. Data collection was performed from four series (5, 8, 17 and 18) in four elevations of less than 600, 600 to 1000, 1000 to 1500 and more than 1500 meters. In each series, one managed parcel and one control parcel were selected and, in each parcel, 15 sample plots with an area of ​​1000 m2 were conducted. Five samples from each parcel were randomly selected and soil samples were taken. The results showed that the mean of both indices of diameter at breast height and basal area in the control area (32.11 cm, 1158.05 cm2) was higher than the managed area (25.93 cm, 724.94 cm2) and the density of trees in the management area (391/66) is more than the control area (317/50). Also, the average diameter at breast height in the altitude above 1500 is higher than the lower classes. It was observed that forest management by single selection method did not have a significant effect on any of the studied soil indices but elevation factor has a significant effect on all soil characteristics. The present study showed that conducting single-tree selection method improved quantitative and qualitative characteristics of the forest stands.

Keywords

References

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Forest Research and Development
Volume 8, Issue 2
September 2022
Pages 217-233

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