Forest mapping against rockfalls on a regional scale in Inebolu of Turkey
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 Özlüce Forest District of İnebolu, Turkey. Potential rockfall source areas are firstly calculated and mapped via RollFree, whi...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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İstanbul University
2017-11-01
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| Series: | İstanbul Üniversitesi Orman Fakültesi Dergisi |
| Subjects: | |
| Online Access: | http://dergipark.gov.tr/jffiu/issue/28363/281710 |
| _version_ | 1797921994406100992 |
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| author | Abdurrahim Aydın Remzi Eker |
| author_facet | Abdurrahim Aydın Remzi Eker |
| author_sort | Abdurrahim Aydın |
| collection | DOAJ |
| description | 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 Özlüce Forest District of İnebolu, 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°, 32°, 35°, and 38°). 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. |
| first_indexed | 2024-04-10T14:24:21Z |
| format | Article |
| id | doaj.art-c1f419b75c164bffb52047c5869d9101 |
| institution | Directory Open Access Journal |
| issn | 0535-8418 |
| language | English |
| last_indexed | 2024-04-10T14:24:21Z |
| publishDate | 2017-11-01 |
| publisher | İstanbul University |
| record_format | Article |
| series | İstanbul Üniversitesi Orman Fakültesi Dergisi |
| spelling | doaj.art-c1f419b75c164bffb52047c5869d91012023-02-15T16:09:11Zengİstanbul Universityİstanbul Üniversitesi Orman Fakültesi Dergisi0535-84182017-11-0167213614910.17099/jffiu.281710Forest mapping against rockfalls on a regional scale in Inebolu of TurkeyAbdurrahim Aydın0Remzi Eker1Düzce University, Faculty of Forestry, 81620, Düzce, TurkeyDüzce University, Faculty of Forestry, 81620, Düzce, TurkeyDetermining 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 Özlüce Forest District of İnebolu, 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°, 32°, 35°, and 38°). 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.http://dergipark.gov.tr/jffiu/issue/28363/281710Energy line angleprotection forestrockfallrockfall propagation map |
| spellingShingle | Abdurrahim Aydın Remzi Eker Forest mapping against rockfalls on a regional scale in Inebolu of Turkey İstanbul Üniversitesi Orman Fakültesi Dergisi Energy line angle protection forest rockfall rockfall propagation map |
| title | Forest mapping against rockfalls on a regional scale in Inebolu of Turkey |
| title_full | Forest mapping against rockfalls on a regional scale in Inebolu of Turkey |
| title_fullStr | Forest mapping against rockfalls on a regional scale in Inebolu of Turkey |
| title_full_unstemmed | Forest mapping against rockfalls on a regional scale in Inebolu of Turkey |
| title_short | Forest mapping against rockfalls on a regional scale in Inebolu of Turkey |
| title_sort | forest mapping against rockfalls on a regional scale in inebolu of turkey |
| topic | Energy line angle protection forest rockfall rockfall propagation map |
| url | http://dergipark.gov.tr/jffiu/issue/28363/281710 |
| work_keys_str_mv | AT abdurrahimaydın forestmappingagainstrockfallsonaregionalscaleinineboluofturkey AT remzieker forestmappingagainstrockfallsonaregionalscaleinineboluofturkey |