Estimation of Individual Tree Structure and Wood Density Parameters for <i>Ginkgo biloba</i> Using Terrestrial LiDAR and Resistance Drill Data
Individual tree structure and wood density are important indicators of forest quality and key parameters for biomass calculation. To explore the extraction accuracy of individual tree structure parameters based on LiDAR technology, as well as the correlation between individual tree structure paramet...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-12-01
|
| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/17/1/99 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841549032326955008 |
|---|---|
| author | Ting Li Xin Shen Kai Zhou Lin Cao |
| author_facet | Ting Li Xin Shen Kai Zhou Lin Cao |
| author_sort | Ting Li |
| collection | DOAJ |
| description | Individual tree structure and wood density are important indicators of forest quality and key parameters for biomass calculation. To explore the extraction accuracy of individual tree structure parameters based on LiDAR technology, as well as the correlation between individual tree structure parameters, resistance value and wood density can be beneficial for providing new ideas for predicting wood density. Taking a 23-year-old Ginkgo plantation as the research object, the tree QSM (Quantitative Structure Model) was constructed based on terrestrial and backpack LiDAR point clouds, and the individual tree structure parameters were extracted. The accuracy of estimating structure parameters based on two types of point clouds was compared. A wood density prediction model was constructed using principal component analysis based on the resistance, diameter, tree height, and crown width. The accuracy verification was carried out and it showed that the estimation accuracies of individual tree structure parameters (DBH, tree height, and crown width) extracted from tree QSM constructed based on TLS and BLS all had R<sup>2</sup> > 0.8. The estimation accuracy of DBH based on TLS was slightly higher than that based on BLS, and the estimation accuracy of tree height and crown width based on TLS was slightly lower than that based on BLS. BLS has great potential in accurately obtaining forest structure information, improving forest information collection efficiency, promoting forest resource monitoring, forest carbon sink estimation, and forest ecological research. The feasibility of predicting the wood basic density based on wood resistance (R<sup>2</sup> = 0.51) and combined with DBH, tree height, and crown width (R<sup>2</sup> = 0.49) was relatively high. Accurate and non-destructive estimation of the wood characteristics of standing timber can guide forest cultivation and management and promote sustainable management and utilization of forests. |
| format | Article |
| id | doaj-art-e83c717cf6d5430faf543dcd2b9fad25 |
| institution | Kabale University |
| issn | 2072-4292 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj-art-e83c717cf6d5430faf543dcd2b9fad252025-01-10T13:20:13ZengMDPI AGRemote Sensing2072-42922024-12-011719910.3390/rs17010099Estimation of Individual Tree Structure and Wood Density Parameters for <i>Ginkgo biloba</i> Using Terrestrial LiDAR and Resistance Drill DataTing Li0Xin Shen1Kai Zhou2Lin Cao3Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, ChinaCo-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, ChinaCo-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, ChinaCo-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, ChinaIndividual tree structure and wood density are important indicators of forest quality and key parameters for biomass calculation. To explore the extraction accuracy of individual tree structure parameters based on LiDAR technology, as well as the correlation between individual tree structure parameters, resistance value and wood density can be beneficial for providing new ideas for predicting wood density. Taking a 23-year-old Ginkgo plantation as the research object, the tree QSM (Quantitative Structure Model) was constructed based on terrestrial and backpack LiDAR point clouds, and the individual tree structure parameters were extracted. The accuracy of estimating structure parameters based on two types of point clouds was compared. A wood density prediction model was constructed using principal component analysis based on the resistance, diameter, tree height, and crown width. The accuracy verification was carried out and it showed that the estimation accuracies of individual tree structure parameters (DBH, tree height, and crown width) extracted from tree QSM constructed based on TLS and BLS all had R<sup>2</sup> > 0.8. The estimation accuracy of DBH based on TLS was slightly higher than that based on BLS, and the estimation accuracy of tree height and crown width based on TLS was slightly lower than that based on BLS. BLS has great potential in accurately obtaining forest structure information, improving forest information collection efficiency, promoting forest resource monitoring, forest carbon sink estimation, and forest ecological research. The feasibility of predicting the wood basic density based on wood resistance (R<sup>2</sup> = 0.51) and combined with DBH, tree height, and crown width (R<sup>2</sup> = 0.49) was relatively high. Accurate and non-destructive estimation of the wood characteristics of standing timber can guide forest cultivation and management and promote sustainable management and utilization of forests.https://www.mdpi.com/2072-4292/17/1/99LiDARtree structure parametersGinkgo plantationwood densityresistance drill |
| spellingShingle | Ting Li Xin Shen Kai Zhou Lin Cao Estimation of Individual Tree Structure and Wood Density Parameters for <i>Ginkgo biloba</i> Using Terrestrial LiDAR and Resistance Drill Data Remote Sensing LiDAR tree structure parameters Ginkgo plantation wood density resistance drill |
| title | Estimation of Individual Tree Structure and Wood Density Parameters for <i>Ginkgo biloba</i> Using Terrestrial LiDAR and Resistance Drill Data |
| title_full | Estimation of Individual Tree Structure and Wood Density Parameters for <i>Ginkgo biloba</i> Using Terrestrial LiDAR and Resistance Drill Data |
| title_fullStr | Estimation of Individual Tree Structure and Wood Density Parameters for <i>Ginkgo biloba</i> Using Terrestrial LiDAR and Resistance Drill Data |
| title_full_unstemmed | Estimation of Individual Tree Structure and Wood Density Parameters for <i>Ginkgo biloba</i> Using Terrestrial LiDAR and Resistance Drill Data |
| title_short | Estimation of Individual Tree Structure and Wood Density Parameters for <i>Ginkgo biloba</i> Using Terrestrial LiDAR and Resistance Drill Data |
| title_sort | estimation of individual tree structure and wood density parameters for i ginkgo biloba i using terrestrial lidar and resistance drill data |
| topic | LiDAR tree structure parameters Ginkgo plantation wood density resistance drill |
| url | https://www.mdpi.com/2072-4292/17/1/99 |
| work_keys_str_mv | AT tingli estimationofindividualtreestructureandwooddensityparametersforiginkgobilobaiusingterrestriallidarandresistancedrilldata AT xinshen estimationofindividualtreestructureandwooddensityparametersforiginkgobilobaiusingterrestriallidarandresistancedrilldata AT kaizhou estimationofindividualtreestructureandwooddensityparametersforiginkgobilobaiusingterrestriallidarandresistancedrilldata AT lincao estimationofindividualtreestructureandwooddensityparametersforiginkgobilobaiusingterrestriallidarandresistancedrilldata |