Zohrevandi, A., Sagheb Talebi, K., Khodakarami, Y. (2018). Effective topographic factors in distribution of wild pear (Pyrus glabra Boiss.) trees in the forests of Kermanshah province. , 3(5), 56-60. doi: 10.22092/irn.2018.117768
Ali Asghar Zohrevandi; Khosro Sagheb Talebi; Yahya Khodakarami. "Effective topographic factors in distribution of wild pear (Pyrus glabra Boiss.) trees in the forests of Kermanshah province". , 3, 5, 2018, 56-60. doi: 10.22092/irn.2018.117768
Zohrevandi, A., Sagheb Talebi, K., Khodakarami, Y. (2018). 'Effective topographic factors in distribution of wild pear (Pyrus glabra Boiss.) trees in the forests of Kermanshah province', , 3(5), pp. 56-60. doi: 10.22092/irn.2018.117768
Zohrevandi, A., Sagheb Talebi, K., Khodakarami, Y. Effective topographic factors in distribution of wild pear (Pyrus glabra Boiss.) trees in the forests of Kermanshah province. , 2018; 3(5): 56-60. doi: 10.22092/irn.2018.117768

Effective topographic factors in distribution of wild pear (Pyrus glabra Boiss.) trees in the forests of Kermanshah province

طبیعت ایران
Article 10, Volume 3, Issue 5 - Serial Number 12, November and December 2018, Pages 56-60    PDF (501.61 K)
Document Type: Scientific Letters
DOI: 10.22092/irn.2018.117768
Authors
Ali Asghar Zohrevandi* 1; Khosro Sagheb Talebi2; Yahya Khodakarami3
1Corresponding author, Assistant Prof., Research Division of Natural Resourses, Kermanshah Agricultural and Natural Resources Research Center, AREEO, Kermanshah, Iran.
2Associate Prof., Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
3Senior Research Expert, Research Division of Natural Recourses, Kermanshah Agricultural and Natural Resources Research and Education Center, AREEO, Kermanshah, Iran
Abstract
The present study was conducted to investigate the effect of topographic factors in distribution of wild pears (Pyrus glabra) in Kermanshah province. The distribution area was classified into three altitudinal ranges including (>1500, 1500-2000, < 2000m a.s.l.), four geographical directions including (north, south, west and east) and also different land forms including (valley, slope, slope edge and flat). Sampling was performed within the 1000m2 plots established at least with three replications. In each plot, variables including number of trees, diameter at breast height (DBH), total height, stem length, and two perpendicular diameters of crown for the wild pears were recorded. The results showed that the study species has the highest crown cover on the west-direction slope and an altitude of 1,500 to 2,000 meters above sea level, and enjoys better growth conditions.
Keywords
Kermanshah Province; topography; wild pear; habitat requirements
References

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- Amman, G., 1965. Bäume und Sträucherdes waldes Verlag Neumann-Neudamm, München, 231p.
- Anonymus, 2008. Plants Database, Planets profile for Pyrus calleryanaDene. USDA, NRCS, 46p.
- Huxley, A., 1992. The new RHS Dictionary of Gardening. MacMillanPress, 3353p.

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