Assessing intraspecific wood density variations of Syzgium sp. in tropical forest of Southwest Sabah
Wood density (WD) is a critical determinant of estimating forest above-ground biomass (AGB) and carbon stock. Thus, heterogeneity in WD on individuals within species trees needs to be scrutinized, and acquisition of fixed WD value is essential to estimate carbon stock with confidence. This study inv...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | en en |
| Published: |
IOPSciences
2021
|
| Subjects: | |
| Online Access: | https://eprints.ums.edu.my/id/eprint/36247/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/36247/2/FULL%20TEXT.pdf https://eprints.ums.edu.my/id/eprint/36247/ https://doi10.1088/1755-1315/1053/1/012014 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1831795671487741952 |
|---|---|
| author | J Joseph D James , L T Chai A Korom W V C Wong R D Maripa M H Phua |
| author_facet | J Joseph D James , L T Chai A Korom W V C Wong R D Maripa M H Phua |
| author_sort | J Joseph |
| building | UMS Library |
| collection | Institutional Repository |
| content_provider | Universiti Malaysia Sabah |
| content_source | UMS Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | Wood density (WD) is a critical determinant of estimating forest above-ground biomass (AGB) and carbon stock. Thus, heterogeneity in WD on individuals within species trees needs to be scrutinized, and acquisition of fixed WD value is essential to estimate carbon stock with confidence. This study investigated intraspecific variation in WD of Syzgium sp., also known as “Jambu” or “Kelat”. It is the most occurring species in study areas, and is regarded as an economically important species. Firstly, one half-diameter drilling from bark-to-pith measurement was taken per tree using Rinntech Resistograph R650-ED at breast height. Meanwhile, 5.15 mm-diameter core was sampled at 1.30 m above-ground, with DeWalt DCF899HP2 20V impact wrench 950 Nm and Haglöf increment borer. WD was estimated for each core sample using a dimensional method. Drilling resistance (DR) profiles were processed using DECOM 2.38m1 Scientific (c), and several independent variables were extracted from the resistogram. All resistogram-derived variables were positively correlated with field WD (R: 0.2 – 0.70). In addition, variability on WD in Syzgium sp. population is predominantly explained by the Resistograph amplitude, expressed as mean raw scale of adjusted DR (DRadj.RawSC) in a regression model. Given that intraspecific variation in WD is a crucial conjecture in forest AGB estimation, it is recommended to analyze with larger samples, and in-depth exploration on Resistograph-based variables is deemed to improve the accuracy of WD prediction models. |
| format | Article |
| id | my.ums.eprints-36247 |
| institution | Universiti Malaysia Sabah |
| language | en en |
| publishDate | 2021 |
| publisher | IOPSciences |
| record_format | eprints |
| spelling | my.ums.eprints-362472023-07-31T08:11:10Z https://eprints.ums.edu.my/id/eprint/36247/ Assessing intraspecific wood density variations of Syzgium sp. in tropical forest of Southwest Sabah J Joseph D James , L T Chai A Korom W V C Wong R D Maripa M H Phua S1-(972) Agriculture (General) SB354-402 Fruit and fruit culture SD1-669.5 Forestry Wood density (WD) is a critical determinant of estimating forest above-ground biomass (AGB) and carbon stock. Thus, heterogeneity in WD on individuals within species trees needs to be scrutinized, and acquisition of fixed WD value is essential to estimate carbon stock with confidence. This study investigated intraspecific variation in WD of Syzgium sp., also known as “Jambu” or “Kelat”. It is the most occurring species in study areas, and is regarded as an economically important species. Firstly, one half-diameter drilling from bark-to-pith measurement was taken per tree using Rinntech Resistograph R650-ED at breast height. Meanwhile, 5.15 mm-diameter core was sampled at 1.30 m above-ground, with DeWalt DCF899HP2 20V impact wrench 950 Nm and Haglöf increment borer. WD was estimated for each core sample using a dimensional method. Drilling resistance (DR) profiles were processed using DECOM 2.38m1 Scientific (c), and several independent variables were extracted from the resistogram. All resistogram-derived variables were positively correlated with field WD (R: 0.2 – 0.70). In addition, variability on WD in Syzgium sp. population is predominantly explained by the Resistograph amplitude, expressed as mean raw scale of adjusted DR (DRadj.RawSC) in a regression model. Given that intraspecific variation in WD is a crucial conjecture in forest AGB estimation, it is recommended to analyze with larger samples, and in-depth exploration on Resistograph-based variables is deemed to improve the accuracy of WD prediction models. IOPSciences 2021 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/36247/1/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/36247/2/FULL%20TEXT.pdf J Joseph and D James and , L T Chai and A Korom and W V C Wong and R D Maripa and M H Phua (2021) Assessing intraspecific wood density variations of Syzgium sp. in tropical forest of Southwest Sabah. IOP Conf. Series: Earth and Environmental Science, 1053. pp. 1-7. https://doi10.1088/1755-1315/1053/1/012014 |
| spellingShingle | S1-(972) Agriculture (General) SB354-402 Fruit and fruit culture SD1-669.5 Forestry J Joseph D James , L T Chai A Korom W V C Wong R D Maripa M H Phua Assessing intraspecific wood density variations of Syzgium sp. in tropical forest of Southwest Sabah |
| title | Assessing intraspecific wood density variations of Syzgium sp. in tropical forest of Southwest Sabah |
| title_full | Assessing intraspecific wood density variations of Syzgium sp. in tropical forest of Southwest Sabah |
| title_fullStr | Assessing intraspecific wood density variations of Syzgium sp. in tropical forest of Southwest Sabah |
| title_full_unstemmed | Assessing intraspecific wood density variations of Syzgium sp. in tropical forest of Southwest Sabah |
| title_short | Assessing intraspecific wood density variations of Syzgium sp. in tropical forest of Southwest Sabah |
| title_sort | assessing intraspecific wood density variations of syzgium sp. in tropical forest of southwest sabah |
| topic | S1-(972) Agriculture (General) SB354-402 Fruit and fruit culture SD1-669.5 Forestry |
| url | https://eprints.ums.edu.my/id/eprint/36247/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/36247/2/FULL%20TEXT.pdf https://eprints.ums.edu.my/id/eprint/36247/ https://doi10.1088/1755-1315/1053/1/012014 |
| url_provider | http://eprints.ums.edu.my/ |