Mahogany (Swietenia macrophylla King.) as urban tree: tree growth and wood quality variation in a progeny test

Sudrajat, Dede J.; Ayyasy, Yahya; Karlinasari, Lina

doi:10.1088/1755-1315/918/1/012042

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…It was provided by all BPDASHLs, except the Papua office. This commercially valuable species is native to South and Central America (Moor et al 2021) and was introduced to Indonesia in 1870, and has been popular as shade trees in urban areas (Sudrajat et al 2021). In five cities of Sumatra, it is the most dominant roadside tree (Wiryono et al 2018).…”

Section: Species Compositionmentioning

confidence: 99%

The species diversity and composition of seedlings for degraded land rehabilitation in different phytogeographical regions in Indonesia

2022

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Abstract. Wirnoyo, Lukman AH, Nurliana S. 2022. The species diversity and composition of seedlings for degraded land rehabilitation in different phytogeographical regions in Indonesia. Biodiversitas 23: 5771-5781. Forest clearing and conversion into cropland without implementing conservation measures have caused land degradation. The total area of degraded land in Indonesia is 14 million hectares. The responsible institution for land rehabilitation in Indonesia is Balai Pengelolaan Daerah Aliran Sungai dan Hutan Lindung (Agency for Watershed and Protection Forest Management), abbreviated as BPDASHL. This study aimed to analyze seedlings' species diversity and composition for degraded land rehabilitation provided by six BPDASHLs located in different phytogeographic regions, i.e., Sunda Shelf, Wallacea, and Sahul Shelf. Data were collected through questionnaires distributed to BPDASHL offices in Papua, West Papua, Gorontalo, Bangka Belitung Islands, Riau, and Aceh. They were analyzed to determine the species richness, indexes of species diversity, equity, and similarity. The clustering of sites based on species composition was done using a dendrogram. This study found that the species richness of seedlings in each site ranged from 25 to 47, the diversity index of Shannon from 2.39 to 2.96, and a Simpson diversity index from 0.80 to 0.94. The species composition differed from one site to another, with similarity indexes of Bray-Curtis and Jaccard of < 0.35. The dendrogram separated western Indonesia (Sunda Shelf) from eastern Indonesia (Sahul Shelf and Wallacea), except for Bangka Belitung Islands, which was clustered in eastern Indonesia despite its location in western Indonesia. Three study sites had more native dominant species, while the other three had more introduced dominant species. We recommend that more native species of seedlings should be provided.

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Section: Species Compositionmentioning

confidence: 99%

The species diversity and composition of seedlings for degraded land rehabilitation in different phytogeographical regions in Indonesia

2022

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“…Several studies have shown intraspecific variation in the wood quality of tree species, such as in Picea glauca (Moench) Voss (Lenz et al 2013), Acacia mangium Willd. (Nurhasybi and Sudrajat 2019), and Swietenia macrophylla G.King (Sudrajat et al 2021). Therefore, more comprehensive information on the basic properties of wood in the provenance level of jabon is critical to obtain superior provenances based on the quality of the wood.…”

Section: Introductionmentioning

confidence: 99%

Physical, mechanical, and anatomical properties of 12 jabon (Neolamarckia cadamba) provenances wood in Indonesia

ANNA,

SIREGAR,

SUPRIYANTO

et al. 2023

Biodiversitas

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Abstract. Anna N, Siregar IZ, Supriyanto, Sudrajat DJ, Karlinasari L. 2023. Physical, mechanical, and anatomical properties of 12 jabon (Neolamarckia cadamba) provenances wood in Indonesia. Biodiversitas 24: 5895-5904. Jabon is a raw wood material for paper industries and has a fast-growing ability. Comprehensive information on the fundamental qualities of wood from the 12 provenances of jabon (Neolamarckia cadamba (Roxb.) Bosser) is a critical aspect of understanding their superior properties. The age of the samples at the trial was 42 months old, and the number of trees tested was 12, representing one provenance. Wood samples for physical (disk samples), mechanical, and anatomical properties were sampled at a height and length of 1.3 m and 35 cm. The logs were divided into 5 cm and 30 cm for wood samples with anatomical and mechanical properties. The physical and mechanical properties were tested according to ASTM D 4442, ASTM D 2395, and ASTM D 143 standards. The physical (density, specific gravity, and moisture content), mechanical properties (MOE and MOR), and anatomical properties (fiber length and microfibril angle) were carried out on wood from 12 provenances. Physical and anatomical properties were tested, from the pith to the outer bark. The average green wood density was 0.94 gcm-3, while the highest was obtained in the Rimbo Panti, Nusakambangan, Kapuas Tengah, and Batu Hijau provenances. The average specific gravity value from the 12 provenances of jabon was 0.46 in Batu Licin and Batu Hijau provenances; the average moisture content on oven-dry weight was 105.13%; and the highest value was in the Kuala Kencana provenance. The average MOE and MOR values were 51,039.93 kgcm-² and 488.37 kgcm-², with a dry air moisture content of 13.62%. The highest MOE and MOR values were in the Batu Licin and Gowa provenance, with MFA testing varied at 11.54°. The fiber length from the pith to the outer bark tended to increase, with an average of 1183.28 ?m. Based on the value of physical, mechanical, and anatomical properties, 12 provenances of jabon can only be used as non-structural raw materials. The Batu Hijau provenances have the highest density and specific gravity. However, the highest fiber length was found in Gowa provenance.

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Mahogany (Swietenia macrophylla King.) as urban tree: tree growth and wood quality variation in a progeny test

Cited by 2 publications

References 14 publications

The species diversity and composition of seedlings for degraded land rehabilitation in different phytogeographical regions in Indonesia

The species diversity and composition of seedlings for degraded land rehabilitation in different phytogeographical regions in Indonesia

Physical, mechanical, and anatomical properties of 12 jabon (Neolamarckia cadamba) provenances wood in Indonesia

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