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Monitoring the decline of Persian oak in Iran using remote sensing : case study of Basht Forest
Joint Authors
Nasirabad, Sahar Haydari
Salihi, Ali Rida
Uzayzi, Zahra
Nijad, Murjan Fayruzi
Source
Issue
Vol. 19, Issue 1 (30 Jun. 2018), pp.67-73, 7 p.
Publisher
National Council for Scientific Research
Publication Date
2018-06-30
Country of Publication
Lebanon
No. of Pages
7
Main Subjects
Topics
Abstract EN
Oak forest decline is a complex problem that it has started for a long time ago in the world.
This problem is widely spread because of lacking of efficient and reliable facilities for monitoring these forests.
In this research, the pattern of spatial-temporal distribution and decline of Iranian Oak stands in the Basht forest was monitored using remote sensing.
The area of study is located in the provinces of Kohgilouyeh and Boyer Ahmad in Iran.
After selecting the study area, forest visits were carried out and samples of dead trees were collected.
Based on the oak crown decline attack, the forest was divided into four categories: low (crown dieback 20-0 percent), medium (between 40-20% of crown dieback), high (between 60-40%) and severe (more than 60% crown dieback).
The geographical locations of the harvested trees were recorded using global positioning system (GPS).
In order to determine the most appropriate vegetation index, root mean square error (RMSE) for 12 vegetation indices were calculated from Landsat 8 images.
The results of this study proved that ratio vegetation index (RVI) indicator with the lowest RMSE was an appropriate tool for assessing the status of the Iranian Oak forests.
Finally, in order to study temporal changes of the Oak forests, dieback canopy variance and RVI for 6 years (1987, 2000, 2003, 2009, 2013 and 2014) were computed from different Landsat images.
The computed indices indicated that crown freshness witnessed significant and continuous decrease.
American Psychological Association (APA)
Nasirabad, Sahar Haydari& Salihi, Ali Rida& Uzayzi, Zahra& Nijad, Murjan Fayruzi. 2018. Monitoring the decline of Persian oak in Iran using remote sensing : case study of Basht Forest. Lebanese Science Journal،Vol. 19, no. 1, pp.67-73.
https://search.emarefa.net/detail/BIM-902753
Modern Language Association (MLA)
Nasirabad, Sahar Haydari…[et al.]. Monitoring the decline of Persian oak in Iran using remote sensing : case study of Basht Forest. Lebanese Science Journal Vol. 19, no. 1 (Jun. 2018), pp.67-73.
https://search.emarefa.net/detail/BIM-902753
American Medical Association (AMA)
Nasirabad, Sahar Haydari& Salihi, Ali Rida& Uzayzi, Zahra& Nijad, Murjan Fayruzi. Monitoring the decline of Persian oak in Iran using remote sensing : case study of Basht Forest. Lebanese Science Journal. 2018. Vol. 19, no. 1, pp.67-73.
https://search.emarefa.net/detail/BIM-902753
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 72-73
Record ID
BIM-902753