Science Collected Works - Research Publications

Permanent URI for this collection

http://hdl.handle.net/11343/303

Filters

2021 2
Reset filters

Settings
Statistics
Citations
Author: Dewi, Listya Mustika × End date: 2021 × Type: Conference Paper ×

Search Results

Now showing 1 - 2 of 2
  • Item
    No Preview Available
    Anatomical comparison of branches and trunks of seven commercial wood species
    Rahmanto, RGH ; Damayanti, R ; Agustiningrum, DA ; Oktapiani, C ; Satiti, ER ; Tutiana, ; Dewi, LM ; Krisdianto, ; Andianto, ; Djarwanto, ; Pari, G ; Karlinasari, L ; Bramasto, Y ; Aminah, A ; Novriyanti, E ; Siregar, IZ ; Teruno, WP ; Huda, MA ; Rohmadi, ; Yusuf, A ; Nugraha, H (IOP Publishing, 2021-11-26)
    Abstract Indonesia is a mega-biodiversity country that grows about 4000 timber producer tree species in tropical rain forest. The comprehensive information of wood properties and quality is important in managing the natural resources sustainably. However, stem in basic properties studies of wood from the natural forest is limited because of some difficulties in harvesting until the transportation process. Hence, study the wood branches becomes a solution, as sometimes wood core samples are not adequate. The question was whether the branch properties could represent the main stem properties? Wood anatomy is an important wood property that can predict the other properties, for instance, the physical and mechanical properties, that determine the effective use of this material. This paper aims to present the comparison of wood anatomical properties of branches and main stem of seven commercial wood species. Quantitative and qualitative anatomical structures were investigated according to the International Association of Wood Anatomist (IAWA) Committee. Result shows that the quantitative wood anatomy of four samples (Mimba, Leda, Jabon, and Bintangur) was statistically different, while only one parameter in Tusam, Mindi, and Khaya was different. Accordingly, it can be concluded that studying the wood properties could be carried out using branch effectively.
  • Item
    No Preview Available
    Fossil wood diversity record from Merangin region, Jambi, Indonesia
    Andianto, ; Damayanti, R ; Dewi, LM ; Ismanto, A ; Oktariani, H (IOP Publishing, 2021-11-26)
    Abstract Merangin is a region in Jambi province, Indonesia, which well-known for its geodiversity. As part of geodiversity, fossil woods play an important role in reconstructing the ancient trees during geological history. Since the study on fossil wood origin Merangin Regency, Jambi, is still limited, this study was conducted to determine fossil wood identity through anatomical features observation and estimate the age of fossil wood samples through geological analysis. The anatomical characteristics were observed using a light microscope to identify the botanical identity of the discovered fossil wood samples. The description of anatomical features refered to the IAWA list of microscopic features for hardwood identification. The result showed that all fossil woods had similarities with the modern wood from the Dipterocarpaceae family, namely Dryobalanoxylon sp. (Kamper), Hopenium sp. (Merawan/Hopea), Shoreoxylon sp. (Meranti), and Cotylelobioxylon sp. (Giam/Resak). These fossil woods were found in different estimated geological age namely Late Permian/Perem age (254-252 million years old), Late Miocene age (7.24-5.33 million years old); Late Pliocene to Early Pleistocene age (3.60-2.58 million years old); and Holocene age (11,700 years old - present). Another approach by using Global Mapper 11 resulted that all the fossil woods were estimated grown in Permian age (290 - 250 million years).