3D-laser scanning: a new method to analyze coarse tree root systems
3D-laser scanning: a new method to analyze coarse tree root systems
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3D 激光扫描：分析粗树根系统的新方法
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
C. Denier
中科院分区：
文献类型：
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作者：
H. Gärtner;B. Wagner;I. Heinrich;C. Denier
根系的时空发展及其对树干年轮宽度变化的影响的细节仍然是未知的。此外，它们的大小，蔓延和建筑起着重要的作用，在研究树木的稳定性和稳定作用的斜坡。这方面的一个主要问题是其复杂结构的详细3D数据采集和建模。激光扫描仪的应用是解决这一问题的一个步骤。扫描一个成熟的云杉树的根系有利于创建一个三维散点图的根结构（分辨率：2毫米）。随后的结构建模允许自动复制的粗根结构下降到0.5厘米的单根的大小。所得到的根系模型便于切割根系进行环宽分析，同时标记模型中的样本点作为进一步分析根系发育的基础。
Details about the spatiotemporal development of root systems and their influence on ring-width variations in tree stems are still unknown. Furthermore, their size, spread and architecture play an important role in studying tree stability and their stabilizing effect on slopes. A major problem in this regard is the detailed 3D-data acquisition and modeling of its complex structure. The appli cation of a laser scanner is a step towards the solution of this problem. Scanning the root system of a mature spruce tree facilitated creating a 3D scatter-plot of the root structure (resolution: 2 mm). The subsequent modeling of the structure allowed an automated replication of the coarse root structure down to a size of 0.5 cm of single roots. The resulting model of the root system facilitates cutting the roots for ring-width analysis while tagging the sample points in the model as a base for the further analysis of the root system’s development.