Revealing Changes in the Stem Form and Volume Allocation in Diverse Boreal Forests Using Two-Date Terrestrial Laser Scanning
Open Access
- 23 June 2021
- Vol. 12 (7), 835
- https://doi.org/10.3390/f12070835
Abstract
Tree growth is a multidimensional process that is affected by several factors. There is a continuous demand for improved information on tree growth and the ecological traits controlling it. This study aims at providing new approaches to improve ecological understanding of tree growth by the means of terrestrial laser scanning (TLS). Changes in tree stem form and stem volume allocation were investigated during a five-year monitoring period. In total, a selection of attributes from 736 trees from 37 sample plots representing different forest structures were extracted from taper curves derived from two-date TLS point clouds. The results of this study showed the capability of point cloud-based methods in detecting changes in the stem form and volume allocation. In addition, the results showed a significant difference between different forest structures in how relative stem volume and logwood volume increased during the monitoring period. Along with contributing to providing more accurate information for monitoring purposes in general, the findings of this study showed the ability and many possibilities of point cloud-based method to characterize changes in living organisms in particular, which further promote the feasibility of using point clouds as an observation method also in ecological studies.Funding Information
- Academy of Finland (31507, 345166, 331711 and 334001)
- Suomen Kulttuurirahasto (000000000000)
This publication has 49 references indexed in Scilit:
- Plasticity of primary and secondary growth dynamics in Eucalyptushybrids: a quantitative genetics and QTL mapping perspectiveBMC Plant Biology, 2013
- Automatic Stem Mapping by Merging Several Terrestrial Laser Scans at the Feature and Decision LevelsSensors, 2013
- Growth and mortality are related to adult tree size in a Malaysian mixed dipterocarp forestForest Ecology and Management, 2006
- Thinning intensity and long-term changes in increment and stem form of Scots pine treesForest Ecology and Management, 2004
- Thinning intensity and long-term changes in increment and stem form of Norway spruce treesForest Ecology and Management, 2004
- Evolution of Water Transport and Xylem StructureInternational Journal of Plant Sciences, 2003
- Comparison of percentile based prediction methods and the Weibull distribution in describing the diameter distribution of heterogeneous Scots pine standsForest Ecology and Management, 2000
- Stand structure and successional trends in virgin boreal forest reserves in SwedenForest Ecology and Management, 1997
- Physiology of carbon allocation in treesBiomass and Bioenergy, 1996
- Morphological segmentationJournal of Visual Communication and Image Representation, 1990