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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences AL KAUNIYAH Pendidikan Biologi Jurnal Biologi Universitas Andalas Biota Jurnal Riset Industri Hasil Hutan Jurnal Biologi Tropis Buletin Ilmiah Nagari Membangun Floribunda Bioscientist : Jurnal Ilmiah Biologi Jurnal Sylva Lestari Makara Journal of Science
Tesri Maideliza
Laboratorium Riset Fisiologi Tumbuhan, Jurusan Biologi, FMIPA, Universitas Andalas
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary Other

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Kekayaan Jenis Tumbuhan Berbunga pada Area Geopark Silokek, Sijunjung, Sumatera Barat. Nurainas, Nurainas; Febriamansyah, Thoriq Alfath; Zulaspita, Witri; Yasra, Firham; Maideliza, Tesri; Chairul, Chairul; Syamsuardi, Syamsuardi
Jurnal Biologi Universitas Andalas Vol 12 No 1 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.12.1.47-57.2024

Abstract

Penelitian ini menginformasikan keanekaragaman hayati tumbuhan berbunga di Geopark Silokek, Sumatera Barat, sebuah kawasan karst yang unik. Survei lapangan dengan cara jelajah dilakukan untuk menginventarisasi spesies tumbuhan berbunga dan mengevaluasi status kelangkaan dan konservasi serta kekhasan ekologis mereka. Hasilnya menunjukkan keberadaan 164 spesies tumbuhan berbunga dalam 121 genus dan 55 famili. Famili Moraceae dan Gesneriaceae merupakan famili dengan jenis terbanyak. Enam spesies diantaranya termasuk penting dari segi taksonomi dan konservasi, dengan status rentan terhadap kepunahan dan juga endemik di Sumatera antara lain Quercus oidocarpa, Vanda sumatrana dan Zingiber macradenium. Selain itu, tujuh jenis lain merupakan tumbuhan indikator kawasan karst antara lain Impatiens tribuana, Paraboea treubii dan Monophyllaea horsfeldii.
Estimation of Biomass and Carbon Stocks in Mangrove Forests Dominated by Nypa fruticans Wurmb in the Nagari Mandeh Area, West Sumatra, Indonesia Fikri, Nur Aisyah; Solfiyeni; Maideliza, Tesri; Ritonga, Muhammad Azli
Jurnal Sylva Lestari Vol. 14 No. 1 (2026): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v14i1.1260

Abstract

Ecosystem condition, biomass, and carbon storage in mangrove forests are highly dependent on the presence of mangrove species in coastal ecosystems. Conversely, the presence of a dominant species alters ecosystem mechanisms; for example, Nypa fruticans Wurmb. Biomass, carbon storage, and potential carbon sequestration were estimated in a coastal area dominated by N. fruticans. Sampling was conducted by laying out multi-level plots along transect lines representing different vegetation types. Biomass on the ground surface was calculated by applying species-specific allometric equations to convert biomass to carbon and CO2 equivalents, and then computing the total carbon stocks. Biomass was calculated at 140.21 tons/ha, with a carbon stock of 66.11 tons/ha, yielding a carbon sequestration potential of 241.82 tons/ha. It is obvious that N. fruticans, the dominant species as the biggest carbon store, is accompanied by low diversity of native mangrove species. Ecological imbalance between N. fruticans and other species persists despite increased total carbon storage. Management efforts must be implemented to support biodiversity and carbon sequestration in coastal mangrove forests. Keywords: biomass, carbon stock, mangrove, Nypa fruticans, carbon sequestration
The Potential Utilization of Non-Productive Sugar Palm (Arenga pinnata Merr.) Trunks for Pulp and Bioenergy Applications Rahmadani, Silmi Yusri; Alponsin; Dimas Surya Pratama; Tesri Maideliza
Biota Vol 12 No 1 (2026): Jurnal Biota 2026
Publisher : Faculty of Science and Technology Universitas Islam Negeri Raden Fatah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/biota.v12i1.27559

Abstract

The sugar palm (Arenga pinnata Merr.) has considerable potential as a biomass resource and as a raw material for pulp production. In West Sumatra, particularly in the Tanah Datar and Lima Puluh Kota regencies, cultivation areas cover approximately 376.75 ha and 285.00 ha, respectively. Although sap extraction for palm sugar and bioethanol remains the primary use, non-productive trunks are largely underutilized. This study evaluated the physical and chemical properties of these trunks, focusing on fiber dimensions, chemical composition, and calorific value. Trunks from Lima Puluh Kota exhibited longer fibers (2.70–2.97 mm), higher felting power (90.33), and favorable Runkel ratios, resulting in a Class I fiber quality rating for pulp production. In contrast, samples from Tanah Datar were classified as Class II. The trunks also showed cellulose contents ranging from 35.21% to 64.63% and moderate lignin levels (8.02–18.40%), both of which are advantageous for pulping. However, the calorific values (2,675–3,374 cal/g) were below national and international standards for biomass fuels. Overall, these findings suggest that non-productive sugar palm trunks are better suited for pulp and paper applications than for bioenergy production. Optimizing their use could support circular economy development while increasing value for local communities.
Co-Authors . Chairul . Mansyurdin . Yastori Aadrean Ahmad Taufiq Aliya Ningsih Alponsin Alponsin Alponsin Alponsin, Alponsin Amir Hamidy AMIR HAMIDY Anthoni Agustien Ardinis Arbain Chairul Chairul Dimas Surya Pratama Dina Hayati Putri Dina Marvianti Djong Hon Tjong Ema Susiana Erizal Muchktar Eti Sari M Febriamansyah, Thoriq Alfath Feby Zulya Feskaharny Alamsjah Fikri, Nur Aisyah Fitri Handayani Gusmardi Indra Harizqi Azri Ikel Fitri Yanis Lince Meriko Lince Meriko Mahdi Mahdi Mahdi Mahdi, Mahdi Mahmudul Hasan Mahmudul Hasan, Mahmudul Mansyurdin . Masayuki Sumida Masayuki Sumida, Masayuki Mega Eka Putri Nia Kurniawan Nia Kurniawan Nurainas Nurainas Nurmiati Nurmiati Periadnadi Periadnadi Prawira, Furqan Rahmadani, Silmi Yusri Rahmadani, Silmi Yusri Rahmatullah, Yudi Agustira Ritonga, Muhammad Azli Robby Jannatan Roesma, Dewi Roziah . Roziah, Roziah Rudi Febriamansyah Sari, Eti Sari Shayen, Millania Putri Sjahridal Dahlan Sjahridal Dahlan Solfiyeni Solfiyeni Suwirmen, Suwirmen Syaifullah Syamsuardi Syamsuardi Takeshi Igawa Takeshi Igawa, Takeshi Tjong, Djong Yasra, Firham Yulia Sandri Yulia Sandri Zozy Aneloi Noli Zulaspita, Witri