Forest inventory based on canopy height model derived from airborne laser scanning data
Airborne laser scanning (ALS) has emerged as a remote sensing technology capable of providing data suitable for deriving all types of elevation models. A canopy height model (CHM), which represents absolute height of objects above the ground in metres (e.g., trees), is the one most commonly used wit...
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| Format: | Article |
| Language: | ces |
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Sciendo
2022-12-01
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| Series: | Central European Forestry Journal |
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| Online Access: | https://doi.org/10.2478/forj-2022-0013 |
| _version_ | 1811331269757239296 |
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| author | Sačkov Ivan |
| author_facet | Sačkov Ivan |
| author_sort | Sačkov Ivan |
| collection | DOAJ |
| description | Airborne laser scanning (ALS) has emerged as a remote sensing technology capable of providing data suitable for deriving all types of elevation models. A canopy height model (CHM), which represents absolute height of objects above the ground in metres (e.g., trees), is the one most commonly used within the forest inventory. The aim of this study was to assess the accuracy of forest inventory performed for forest unit covered 17,583 ha (Slovakia, Central Europe) using the CHM derived from ALS data. This objective also included demonstrating the applicability of freely available data and software. Specifically, ALS data acquired during regular airborne survey, QGIS software, and packages for R environment were used for purpose of this study. A total of 180 testing plots (5.6 ha) were used for accuracy assessment. The differences between CHM-predicted and ground-observed forest stand attributes reached a relative root mean square error at 10.9%, 23.1%, and 34.5% for the mean height, mean diameter, and volume, respectively. Moreover, all predictions were unbiased (p-value < 0.05) and the strength of the relationships between CHM-predicted and ground-observed forest stand attributes were relative high (R2 = 0.7 – 0.8). |
| first_indexed | 2024-04-13T16:18:16Z |
| format | Article |
| id | doaj.art-7ed8e5625df14207bd69613ae855f0a3 |
| institution | Directory Open Access Journal |
| issn | 2454-0358 |
| language | ces |
| last_indexed | 2024-04-13T16:18:16Z |
| publishDate | 2022-12-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Central European Forestry Journal |
| spelling | doaj.art-7ed8e5625df14207bd69613ae855f0a32022-12-22T02:40:00ZcesSciendoCentral European Forestry Journal2454-03582022-12-0168422423110.2478/forj-2022-0013Forest inventory based on canopy height model derived from airborne laser scanning dataSačkov Ivan0National Forest Centre - Forest Research Institute Zvolen, T. G. Masaryka 2175/22, SK – 960 01Zvolen, Slovak RepublicAirborne laser scanning (ALS) has emerged as a remote sensing technology capable of providing data suitable for deriving all types of elevation models. A canopy height model (CHM), which represents absolute height of objects above the ground in metres (e.g., trees), is the one most commonly used within the forest inventory. The aim of this study was to assess the accuracy of forest inventory performed for forest unit covered 17,583 ha (Slovakia, Central Europe) using the CHM derived from ALS data. This objective also included demonstrating the applicability of freely available data and software. Specifically, ALS data acquired during regular airborne survey, QGIS software, and packages for R environment were used for purpose of this study. A total of 180 testing plots (5.6 ha) were used for accuracy assessment. The differences between CHM-predicted and ground-observed forest stand attributes reached a relative root mean square error at 10.9%, 23.1%, and 34.5% for the mean height, mean diameter, and volume, respectively. Moreover, all predictions were unbiased (p-value < 0.05) and the strength of the relationships between CHM-predicted and ground-observed forest stand attributes were relative high (R2 = 0.7 – 0.8).https://doi.org/10.2478/forj-2022-0013airborne lidarnatural resourcesarea-based approachfreeware |
| spellingShingle | Sačkov Ivan Forest inventory based on canopy height model derived from airborne laser scanning data Central European Forestry Journal airborne lidar natural resources area-based approach freeware |
| title | Forest inventory based on canopy height model derived from airborne laser scanning data |
| title_full | Forest inventory based on canopy height model derived from airborne laser scanning data |
| title_fullStr | Forest inventory based on canopy height model derived from airborne laser scanning data |
| title_full_unstemmed | Forest inventory based on canopy height model derived from airborne laser scanning data |
| title_short | Forest inventory based on canopy height model derived from airborne laser scanning data |
| title_sort | forest inventory based on canopy height model derived from airborne laser scanning data |
| topic | airborne lidar natural resources area-based approach freeware |
| url | https://doi.org/10.2478/forj-2022-0013 |
| work_keys_str_mv | AT sackovivan forestinventorybasedoncanopyheightmodelderivedfromairbornelaserscanningdata |