Assessment and analysis of rockfall-caused tree injuries in a Turkish fir stand: A case study from Kastamonu-Turkey

摘要: Rockfalls can cause serious damage to people, property, facilities and transportation corridors. Furthermore, rockfalls are major hazards in mountain areas with negative impacts on individual trees forested ecosystems. We conducted a study of rockfall events 117 mapped (91% total the stand > 1.3 m height 5 cm diameter at breast height) Turkish fir (Abies bornmuelleriana Mattf.) within Kayaarkasi-Topcular Village, Inebolu district, Kastamonu province Turkey. The site 0.35 Ha is located transition zone frequently passing fragments (∼ 40 diameter) generally causing healable injuries. Parameters injuries were recorded analysed as injury number, size. Bivariate correlation analysis used investigate relationships between: a) number per tree, b) size, c) size d) tree distance from source area. Results indicate that average injury, area be 81.3 (STDEV: 49.8), 7.46 4.4) 628.6 cm2 678.2), respectively. In 84% all 160° sector upslope side callus tissue had closed wounds was observed 79.1% Furthermore 14.5% injured process closing while 6.4% not formed any tissue. most common types bark wood indicated strong between (rs = 0.524), 0.653) numbers relations −0.518). A weaker relationship found 0.363). These results bigger more prone As expected, further seem less From our results, it inferred protection people property increased through maintanance forest immediately below rockfall. This still managed selective management system. order protect settlement deposition has manage for protective goals uneven-aged multilayered structure.