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All Journal BIOTROPIA - The Southeast Asian Journal of Tropical Biology AL KAUNIYAH REINWARDTIA Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Journal of Sylva Indonesiana Jurnal Natural Proceeding of International Conference on Biology Education, Natural Science, and Technology
Nursahara Pasaribu
Departemen Biologi, FMIPA, Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Education Energy Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Neuroscience Physics Social Sciences Veterinary

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Journal : jurnal natural

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TAXONOMIC STUDY OF PANDANUS (PANDANACEAE) IN SWAMP AREA, ACEH SINGKIL Dwi Ratna Anjaning Kusuma Marpaung; Nursahara Pasaribu; Alief Aththorick
Jurnal Natural Volume 13, Number 2, September 2013
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (458.202 KB)

Abstract

Taxonomic study on Pandanus (Pandanaceae) in swamp area, Singkil had been conducted from November 2012 until June 2013. Based on morphological characters,  5 species of Pandanus have been identified in the area  as  Pandanus atrocarpus, Pandanus labyrinthicus, Pandanus militaris, Pandanus odoratissimus and Pandanus tectorius. The morphology and life cycle of species were categorized into two types, and they are medium arborescent pandan  (Pandanus labyrinthicus and Pandanus militaris) and large arborescent pandan (Pandanus atrocarpus, Pandanus odoratissimus and Pandanus tectorius).  Anatomical characters of Pandanus such as stomata (type, size, papilla) and epidermal cells supported the morphological features.
Vegetation composition and carbon stocks in West Batang Toru Forest Block, North Sumatra PASARIBU, NURSAHARA; RANGKUTI, LATIFAH HANNUM; SIREGAR, JULIUS PAOLO
Jurnal Natural Volume 24 Number 3, October 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v24i3.30908

Abstract

West Batang Toru Forest Block, North Tapanuli Regency, North Sumatra Province is a forest that contains numerous species of tree stands and is estimated to be able to store a considerable high carbon from the atmosphere. The aim of this study was to determine the composition of vegetation and the potential for carbon stored in the forest region. This research was conducted from September 2021 to March 2022 using a purposive sampling method. Vegetation data were analyzed using the Diversity Index (H'), Uniformity Index (E) using the Shannon-Wiener equation. The carbon stock of each stand per species was estimated using the Ketterings allometric equation. The study documented a total of 64 families, belonging to 297 species with a total of 2,399 individuals. The percentage of composition of all growth rates ranged from 31%-59%. The Importance Value Index (IVI) of all growth rates ranged between 14.3 to 71.7%. The highest diversity index and evenness index at the tree level were 4.71 and 0.85. The stored carbon is 373.227 tons C/ha in West Batang Toru Forest Block, highlighting the forest region as an important green carbon sink.
Co-Authors A.A. Ketut Agung Cahyawan W AFIATRI PUTRIKA, AFIATRI Afridah Afridah Rosannah Alief Aththorick DAMANIK, RISJUNARDI Dwi Ratna Anjaning Kusuma Marpaung Elimasni Elizabeth A. widjaja, Elizabeth A. Elizabeth Anita Widjaja Emita Sabri Eny Yuniati etti sartina siregar FADZILAH AG. KANAK, FADZILAH AG. Fuad Bahrul Ulum Helmin Parida Zebua Julius Paolo Siregar KANJANA WONGKUNA, KANJANA LESLEY C. LUBOS, LESLEY C. LUONG THIEN TAM, LUONG THIEN MIKA RIZKI PUSPANINGRUM, MIKA RIZKI MOHD RAWIYANI PG. HJ. SERUDIN, MOHD RAWIYANI PG. MONICA SULEIMAN, MONICA Mudinillah, Adam Musyarofah Zuhri NG AIK MIN, NG AIK NURLISMA JUNITA, NURLISMA RANGKUTI, LATIFAH HANNUM ROBBERT GRADSTEIN, ROBBERT Saleha Hannum SATRIYAS ILYAS Sofyan, Muhammad Zaidun SOONTHREE KORNOCHALERT, SOONTHREE Suci Pratiwi Suci Rahayu Supriharti, Denny Syamsuardi, S Ummi Khoiriyah YONG KIEN–THAI, YONG