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Forest structure measurement using laser scanning technology in tropical rainforest.

Numerous measurements can be made to extract the forest structure. Forest structure is one of the main aspects of forest management. The precise estimation of forest structure is vital for some forestry applications. Thus, this study presents a novel non-destructive approach for the measurement of f...

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Main Authors: Abu Bakar, Norizfika, Rasib, Abd. Wahid, Majid, Zulkepli, Md. Din, Ami Hassan, Dollah, Rozilawati, Omar, Hamdan
Format: Article
Language:English
Published: Penerbit UTM Press 2023
Subjects:
TH434-437 Quantity surveying
Online Access:http://eprints.utm.my/108477/1/NorizfikaAbuBakar2023_ForestStructureMeasurementinTropicalRainforest.pdf
http://eprints.utm.my/108477/
http://dx.doi.org/10.11113/jagst.v3n1.62
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spelling my.utm.1084772024-11-13T04:39:46Z http://eprints.utm.my/108477/ Forest structure measurement using laser scanning technology in tropical rainforest. Abu Bakar, Norizfika Rasib, Abd. Wahid Majid, Zulkepli Md. Din, Ami Hassan Dollah, Rozilawati Omar, Hamdan TH434-437 Quantity surveying Numerous measurements can be made to extract the forest structure. Forest structure is one of the main aspects of forest management. The precise estimation of forest structure is vital for some forestry applications. Thus, this study presents a novel non-destructive approach for the measurement of forest structure using laser scanning technologies of airborne LiDAR and Terrestrial Laser Scanning (TLS). The study area was located at the forest campus of the Forest Research Institute of Malaysia (FRIM), Kepong, Selangor. The elements of forest structure that were measured: were canopy height; plant density and basal area. The field survey was conducted over 3 plots of 25 m radius circular shape with a total of 60 trees with diameter at breast height (DBH) of 10 cm and above. The tree canopy height was estimated based on canopy height model (CHM) of LiDAR data. For plant density, it was estimated based on crown delineation created from CHM. While, for TLS data, the extraction of individual trees was done using Cyclone algorithm. The forest structure measurement obtained from laser scanning technologies is proven to be reliable with the root mean square error (RMSE) of 5.415, t-test of 3.011, and p-value of 0.004 for canopy height. For basal area, the mean of RMSE, t-test and p-value was 0.22589, 0.620 and 0.324 for the overall 3 plots, respectively. The result obtained for plant density was one tree per meter². The final outputs were presented as the map of CHM, plant density and basal area map. In conclusion, laser scanning measurement improves and provides a precise technique for forest structure measurement. Penerbit UTM Press 2023-03-30 Article PeerReviewed application/pdf en http://eprints.utm.my/108477/1/NorizfikaAbuBakar2023_ForestStructureMeasurementinTropicalRainforest.pdf Abu Bakar, Norizfika and Rasib, Abd. Wahid and Majid, Zulkepli and Md. Din, Ami Hassan and Dollah, Rozilawati and Omar, Hamdan (2023) Forest structure measurement using laser scanning technology in tropical rainforest. Journal of Advanced Geospatial Science & Technology, 3 (1). pp. 73-102. ISSN 2811-325X http://dx.doi.org/10.11113/jagst.v3n1.62 DOI:10.11113/jagst.v3n1.62
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TH434-437 Quantity surveying
spellingShingle TH434-437 Quantity surveying
Abu Bakar, Norizfika
Rasib, Abd. Wahid
Majid, Zulkepli
Md. Din, Ami Hassan
Dollah, Rozilawati
Omar, Hamdan
Forest structure measurement using laser scanning technology in tropical rainforest.
description Numerous measurements can be made to extract the forest structure. Forest structure is one of the main aspects of forest management. The precise estimation of forest structure is vital for some forestry applications. Thus, this study presents a novel non-destructive approach for the measurement of forest structure using laser scanning technologies of airborne LiDAR and Terrestrial Laser Scanning (TLS). The study area was located at the forest campus of the Forest Research Institute of Malaysia (FRIM), Kepong, Selangor. The elements of forest structure that were measured: were canopy height; plant density and basal area. The field survey was conducted over 3 plots of 25 m radius circular shape with a total of 60 trees with diameter at breast height (DBH) of 10 cm and above. The tree canopy height was estimated based on canopy height model (CHM) of LiDAR data. For plant density, it was estimated based on crown delineation created from CHM. While, for TLS data, the extraction of individual trees was done using Cyclone algorithm. The forest structure measurement obtained from laser scanning technologies is proven to be reliable with the root mean square error (RMSE) of 5.415, t-test of 3.011, and p-value of 0.004 for canopy height. For basal area, the mean of RMSE, t-test and p-value was 0.22589, 0.620 and 0.324 for the overall 3 plots, respectively. The result obtained for plant density was one tree per meter². The final outputs were presented as the map of CHM, plant density and basal area map. In conclusion, laser scanning measurement improves and provides a precise technique for forest structure measurement.
format Article
author Abu Bakar, Norizfika
Rasib, Abd. Wahid
Majid, Zulkepli
Md. Din, Ami Hassan
Dollah, Rozilawati
Omar, Hamdan
author_facet Abu Bakar, Norizfika
Rasib, Abd. Wahid
Majid, Zulkepli
Md. Din, Ami Hassan
Dollah, Rozilawati
Omar, Hamdan
author_sort Abu Bakar, Norizfika
title Forest structure measurement using laser scanning technology in tropical rainforest.
title_short Forest structure measurement using laser scanning technology in tropical rainforest.
title_full Forest structure measurement using laser scanning technology in tropical rainforest.
title_fullStr Forest structure measurement using laser scanning technology in tropical rainforest.
title_full_unstemmed Forest structure measurement using laser scanning technology in tropical rainforest.
title_sort forest structure measurement using laser scanning technology in tropical rainforest.
publisher Penerbit UTM Press
publishDate 2023
url http://eprints.utm.my/108477/1/NorizfikaAbuBakar2023_ForestStructureMeasurementinTropicalRainforest.pdf
http://eprints.utm.my/108477/
http://dx.doi.org/10.11113/jagst.v3n1.62
_version_ 1816130057173729280
score 13.23648

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