Global S&T Development Trend Analysis Platform of Resources and Environment
How the Giant Sequoia Tree Protects Itself | |
admin | |
2020-06-17 | |
发布年 | 2020 |
语种 | 英语 |
国家 | 美国 |
领域 | 气候变化 |
正文(英文) | The giant sequoia (Sequoiadendron giganteum) has developed effective strategies to protect itself against external influences in its natural environment in the Sierra Nevada. Its bark ensures that the tree survives wild fires and rock fall almost unscathed. Prof. Dr. Thomas Speck from the Cluster of Excellence Living, Adaptive and Energy-autonomous Materials Systems (livMatS), working with Dr. Georg Bold and Max Langer of the Institute of Biology, have examined the structural properties of its bark in detail for the first time. The University of Freiburg team has shown that the bark fibers form a three-dimensional network with cavities. This network distributes energy acting on the bark across the entire tissue. The results of their study have been published in the International Journal of Molecular Sciences. The outer bark of the sequoia tree contains many fibers, which are organized in fiber bundles. These cross over each other and are also layered on top of each other, creating a three-dimensional netted structure. In between the fiber bundles are air-filled cavities. When a rock strikes the bark, these cavities are compressed. Compressing the hollow spaces and stretching the fiber network has the effect of distributing the energy evenly over the bark and protecting the inside of the tree with the sensitive cambium that forms wood and bark. The bark later returns almost completely to its original state. The cavities also insulate the tree so that it is resistant to the heat generated during wild fires. Due to this structure, the bark of the sequoia tree behaves like an open-pored foam similar to the foam used in the construction of cars and houses, for example. On the basis of their findings, the researchers are, among others, to develop with colleagues from the University of Stuttgart a new type of light weight concrete with bundles of hollow fibers, which could be used to insulate and to better protect buildings against earthquakes, for example.
make a difference: sponsored opportunity
Story Source: Materials provided by University of Freiburg. Note: Content may be edited for style and length. Journal Reference:
Cite This Page: University of Freiburg. "How the giant sequoia tree protects itself." ScienceDaily. ScienceDaily, 17 June 2020.
University of Freiburg. (2020, June 17). How the giant sequoia tree protects itself. ScienceDaily. Retrieved June 18, 2020 from www.sciencedaily.com/releases/2020/06/200617102437.htm
University of Freiburg. "How the giant sequoia tree protects itself." ScienceDaily. www.sciencedaily.com/releases/2020/06/200617102437.htm (accessed June 18, 2020).
|
URL | 查看原文 |
来源平台 | Science Daily |
文献类型 | 新闻 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/276378 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | admin. How the Giant Sequoia Tree Protects Itself. 2020. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[admin]的文章 |
百度学术 |
百度学术中相似的文章 |
[admin]的文章 |
必应学术 |
必应学术中相似的文章 |
[admin]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论