Forest mapping against rockfalls on a regional scale in Inebolu of Turkey
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Dosyalar
Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Istanbul Univ, Fac Forestry
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Determining areas where forest plantations provide protection against rockfall is significant in the prevention of disasters. In this paper, a case study is conducted in the Ozluce Forest District of Inebolu, Turkey. Potential rockfall source areas are firstly calculated and mapped via RollFree, which uses a digital elevation model as the only input. The rockfall travel distance is then identified using an empirical energy line angle to create propagation maps for different scenarios (using a set of four angles: 28 degrees, 32 degrees, 35 degrees, and 38 degrees). By marking the lower boundaries of propagation, the maximum run-out zone of a fallen block is determined as having a very low, low, medium, or high probability of occurrence (marking the lower boundaries of propagation). These propagation maps are then overlapped with a forest stand map to define areas where the forest provides a protective function against rockfall. According to propagation maps that indicate a high probability of occurrence, only 9% of the total forest area is found to be capable of playing a protective role, whereas for those determined as having a low probability of occurrence, 17% of the forest area provides a protective function.
Açıklama
WOS: 000410446300004
Anahtar Kelimeler
Energy line angle, protection forest, rockfall, rockfall propagation map
Kaynak
Journal Of The Faculty Of Forestry-Istanbul University
WoS Q Değeri
N/A
Scopus Q Değeri
Cilt
67
Sayı
2
