Estimating aboveground biomass of logged forest in Terengganu using lidar and ground based measurement
Also available in printed version
| 第一著者: | |
|---|---|
| その他の著者: | |
| フォーマット: | Bachelor thesis |
| 言語: | 英語 |
| 出版事項: |
Universiti Teknologi Malaysia
2025
|
| 主題: | |
| オンライン･アクセス: | https://utmik.utm.my/handle/123456789/55446 |
| Abstract | Abstract here |
| _version_ | 1854975110599933952 |
|---|---|
| author | Lina Farhana Ab. Karim |
| author2 | Kasturi Devi Kanniah, supervisor |
| author_facet | Kasturi Devi Kanniah, supervisor Lina Farhana Ab. Karim |
| author_sort | Lina Farhana Ab. Karim |
| description | Also available in printed version |
| format | Bachelor thesis |
| id | utm-123456789-55446 |
| institution | Universiti Teknologi Malaysia |
| language | English |
| publishDate | 2025 |
| publisher | Universiti Teknologi Malaysia |
| record_format | dspace |
| record_pdf | Abstract |
| spelling | utm-123456789-554462025-08-21T12:05:05Z Estimating aboveground biomass of logged forest in Terengganu using lidar and ground based measurement Lina Farhana Ab. Karim Kasturi Devi Kanniah, supervisor Mechanical engineering Also available in printed version In this study, we estimated the AGB of forest in Puah Dam, Hulu Terengganu, Malaysia. This study area will be raised by water levels for dam construction purposes. Hence, it is necessary to calculate the total AGB and/or carbon stock in this area for an environmental assessment. Since collecting ground data for estimating the AGB of the forest is time consuming, labor intensive and limited to a smaller scale. This study aimed to estimate aboveground biomass from high density point cloud obtained by the airborne Light Detention and Ranging (Lidar) which can provide fast and accurate measurements for estimating AGB on larger scale. Forest inventory data such as (i) diameter at breast height (DBH), (ii) height of trees, (iii) coordinates of trees, and (iv) tree species , were collected from 41 circular plots with the radius of 10m. Using ground data measurements, the biomass estimation from the ground was calculated using several allometric equations available for tropical forest in Malaysia. Statistical methods on plot sample were used in this study for parameter extraction from LIDAR point cloud data. The numbers of Lidar metrics were generated based on Lidar points height from normalized Digital Surface Model (nDSM) / Canopy Height Model (CHM). The result shows the relatively good correlation between the derived AGB from Lidar metrics and ground data with the use of four statistical method namely (i) linear, (ii) non-linear, (iii) multiple linear (stepwise regression) and (iv) Artificial Neural Network. Overall, multiple linear using stepwise regression produces the highest correlation = 0.73 compared to other three methods atiff UTM 92 p. Project Paper (Sarjana Muda Sains (Geoinformatik)) - Universiti Teknologi Malaysia, 2015 2025-03-17T03:55:24Z 2025-03-17T03:55:24Z 2015 Bachelor thesis https://utmik.utm.my/handle/123456789/55446 valet-20170131-175038 vital:94506 ENG Closed Access UTM Complete Unpublished application/pdf Universiti Teknologi Malaysia |
| spellingShingle | Mechanical engineering Lina Farhana Ab. Karim Estimating aboveground biomass of logged forest in Terengganu using lidar and ground based measurement |
| thesis_level | Other |
| title | Estimating aboveground biomass of logged forest in Terengganu using lidar and ground based measurement |
| title_full | Estimating aboveground biomass of logged forest in Terengganu using lidar and ground based measurement |
| title_fullStr | Estimating aboveground biomass of logged forest in Terengganu using lidar and ground based measurement |
| title_full_unstemmed | Estimating aboveground biomass of logged forest in Terengganu using lidar and ground based measurement |
| title_short | Estimating aboveground biomass of logged forest in Terengganu using lidar and ground based measurement |
| title_sort | estimating aboveground biomass of logged forest in terengganu using lidar and ground based measurement |
| topic | Mechanical engineering |
| url | https://utmik.utm.my/handle/123456789/55446 |
| work_keys_str_mv | AT linafarhanaabkarim estimatingabovegroundbiomassofloggedforestinterengganuusinglidarandgroundbasedmeasurement |