Evaluation of the resistance of coastal Pinus thunbergii Parlat. forests to the tsunami fluid force in Japan
Evaluation of the resistance of coastal Pinus thunbergii Parlat. forests to the tsunami fluid force in Japan
复制标题
沿海黑松抗性评价。
DOI：
10.1007/s11069-019-03600-9
复制
发表时间：
2019
期刊：
影响因子：
3.7
通讯作者：
Hiroyuki Torita,Norio Tanaka
中科院分区：
文献类型：
--
作者：
Hiroshi Nagashima;Nozomu Yoneyama;香川敬生・吉田昌平・野口竜也;Hiroyuki Torita,Norio Tanaka
沿海森林可以保护沿海地区免受海啸的影响。然而，2011年3月11日太平洋大地震引发的东日本大海啸摧毁了东北沿海森林，造成大量生命损失和广泛的社会经济损失。为了确保它们在保护沿海地区免受海啸影响方面发挥作用，我们需要定量评估沿海森林对海啸影响的抵抗力。在本研究中，研究了翻倒或折断松茎所需的临界速度。树木是根据在日本青森县实地调查收集的数据计算出来的。结果表明：毁伤树木临界速度较小，未毁伤树木临界速度较大；此外，直径较大的树木往往会被掀翻而不是折断。我们的研究结果与以往的研究结果一致，表明临界速度可用于定量评价沿海森林对海啸影响的抵抗力。
Coastal forests can protect coastal areas from the effects of tsunamis. However, the coastal forests of Tohoku were destroyed by the Great East Japan Tsunami, which was triggered by a gigantic earthquake in the Pacific Ocean on 11 March 2011, causing considerable loss of life and widespread socioeconomic damage. To ensure they have a role in protecting coastal areas from the effects of tsunamis, we need to quantitatively evaluate the resistance of coastal forests to the effects of tsunamis. In this study, the critical velocities required to overturn or break the stems ofPinus thunbergiiParlat. trees were calculated from data collected during a field survey in Aomori Prefecture, Japan. The results showed that the damaged and undamaged trees had small and relatively large critical velocities, respectively. Further, trees with larger diameters tended to be overturned rather than broken. Our results are consistent with those of previous studies, which suggests that the critical velocity could be used to evaluate quantitatively evaluate the resistance of coastal forests to the effects of tsunamis.