Investigation on boundary changes of northern forests of Iran using remotely sensed data

تحقیقات جنگل و صنوبر ایران

Reza Akhavan¹  Khosro Mirakhorlou² 

[1] Assis. Prof. RIFR;senior research expert, member of scientific board, Research Institute of Forests and Rangelands (RIFR);

关键词: Landsat;    deforestation;    mountainous forests;    afforestation;    upper border;    northern forest;   

DOI  :  

来源: DOAJ

【 摘 要 】

We compared land use maps of 1988 and 2004 of northern mountainous forests of Iran that have been extracted from landsat images in 15 years period and investigated on boundary changes and calculated deforestation areas as well. This information is essential for afforestation and forest extension in the deforestation areas of upper border of the mountainous forests. For this reason, we used landsat TM and ETM+ images in 1988 and 2004 for providing land use maps and also collected information from 2960 sample plot (90×90m) using systematic random sampling. Based on extracted maps, 121528 ha of northern mountainous forests of Iran has been deforested in 15 years period. The deforestation area were estimated 8101 ha per year.  It is 0.45 percent of the northern forests. The percentage of deforestation area in terms of provinces (Guilan, Mazandran and Golestan) were estimated 1182, 4647 and 2272 ha per year or annually 0.21%, 0.49% and 0.69%, respectively. The results showed that the maximum deforestation percentage occurred in the Golestan and the minimum in the Guilan province.

【 授权许可】

Unknown