Long-lived ornamental trees of Zanjan province

Document Type : Scientific Letters

Authors

1 Research Expert, Forests and Rangelands Research Section, Zanjan Agricultural and Natural Resources Research and Education, Agricultural Research Education and Extension Organization , AREEO, Zanjan, Iran

2 Senior Research Expert, Research institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran.

3 Senior Research Expert, Forests and Rangelands Research Section, Zanjan Agricultural and Natural Resources Research and Education, Agricultural Research Education and Extension Organization, AREEO, Zanjan, Iran

4 Expert, Forests and Rangelands Research Section, Zanjan Agricultural and Natural Resources Research and Education, Agricultural Research Education and Extension Organization, AREEO, Zanjan, Iran

Abstract

Long-lived trees are living environmental resources. They are important in this regard because they have undergone different climatic conditions. These trees are the genetic treasure of nature. During the registration of long-lived trees in Zanjan province, 48 ornamental and fruit trees were recorded. Twenty one trees were ornamental including species from juniper, willow, pistachio, oak, European nettle, plane, and poplar. Some characteristics including DBH, total height, trunk height, canopy area, health status, and geographical position were recorded. Maximum and minimum DBH belonged to plane and European nettle trees, respectively. Seven trees including pistachio, willow, European nettle, and plane require urgent attention due to injuries. In addition, the only long-lived white poplar tree is a native cultivar of the province and may be cut due to private ownership. Registered oak trees also lack natural regeneration. Willow and plane trees are present in farms and residential areas, and without exception, have the benefit of proximity to permanent water resources. Only in one case, people were cutting down small branches of trees to ward off calamity from children, livestock, and so forth.

Keywords

References

- Dickman, D. I. 2001, An Overview of the Genus Populus, 1-41. In: Dickmann, D. I., Isebrands, J. G., Eckenwalder,
J. E., Richardson, J. Eds. Poplar culture in North America. NRC Research Press, Canada. 397 p.
- Kruger, E. L. 2003, Forest Ecophysiology, 75-97. In: Young, R. A. and Giese, R. L Eds. Introduction to Forest Ecosystem Science and Management 3rd Ed. Wiley, USA, 560 p.
- Marsh, G. P. 1865, Man and Nature; or Physical Geography as Modified by Human Action. Harvard University Press, USA, 472 p.
- Pirani, A., Moazzeni, H., Mirinejad, S., Naghibi, F., and Mosaddegh, M. 2011, Ethnobotany of Juniperus excelsa M. Bieb. (Cupressaceae) in Iran, Ethnobotany Research & Application, 9, 335-341
Iran Nature
Volume 4, Issue 4 - Serial Number 17
September and October 2019
Pages 29-35

Files

Share

How to cite

Statistics