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All Journal Journal of Degraded and Mining Lands Management Jurnal Hutan Pulau-Pulau Kecil : Jurnal Ilmu-Ilmu Kehutanan dan Pertanian Jurnal Sylva Scienteae MAKILA: Jurnal Penelitian Kehutanan Jurnal Sains dan Teknologi Jurnal Penyuuhan dan Pemberdayaan Masyarakat (JPPM) Open Science and Technology Jurnal Riset Rumpun Ilmu Tanaman BAKIRA: Jurnal Pengabdian Kepada Masyarakat Ardhi: Jurnal Pengabdian dalam Negri MARSEGU : Jurnal Sains dan Teknologi Jurnal Pengabdian Cendekia Maanu : Jurnal Pengabdian Kepada Masyarakat PENGAMATAN: Jurnal Pengabdian Masyarakat untuk Ilmu MIPA dan Terapannya
Irwanto Irwanto
Jurusan Kehutanan Fakultas Pertanian Universitas Pattimura Ambon Jl. Ir. M. Putuhena, Kampus Poka Ambon 97237
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Analisis Struktur dan Vegetasi di Sempadan Sungai Ira (Wae Ira) Negeri Kamarian, Kecamatan Kairatu, Kabupaten Seram Bagian Barat Labetubun, Agung Herat; Irwanto, Irwanto; Tetelay, Febian Filiph
Jurnal Riset Rumpun Ilmu Tanaman Vol. 4 No. 2 (2025): Oktober : JURRIT: Jurnal Riset Rumpun Ilmu Tanaman
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrit.v4i2.6658

Abstract

This study aims to analyze the structure and composition of vegetation on the banks of the Ira River (Wae Ira), Negeri Kamarian, Kairatu District, West Seram Regency. Riparian vegetation plays an important role in maintaining the stability of river ecosystems, both in terms of ecological, hydrological, and biodiversity aspects. The method used in this study is a combination of the continuous strip sampling method and the line plot sampling method, which are applied to four levels of vegetation growth, namely seedlings, saplings, poles, and trees. The results of the analysis show that the vegetation structure in the study area is divided into four strata, with varying species compositions in each stratum. The dominant species found include Pulai (Alstonia scholaris), Pulaka (Cyrtosperma merkusii), Buah rao (Dracontomelon mangiferum), and Salam (Syzygium polyanthum). The highest Importance Value Index (INP) at the tree level is owned by Pulai (Alstonia scholaris) at 54,2. The highest vegetation density is at the seedling level with 52000 individuals/ha and the lowest at the tree level with 341 individuals/ha. The Shannon-Wiener diversity index (H') ranges from 1.87–2.65, indicating a moderate level of diversity. The results of this study indicate that the Ira River border area still has a relatively good vegetation structure and composition, although there are ecological pressures that cause dominance by certain species
Model Pengelolaan Wilayah Mangrove Berbasis Eduekowisata di Provinsi Papua Barat Daya Inta P. N. Damanik; Meilvis E. Tahitu; Irwanto Irwanto; Esther Kembauw
Jurnal Penyuluhan dan Pemberdayaan Masyarakat Vol. 5 No. 2 (2026): Jurnal Penyuluhan dan Pemberdayaan Masyarakat
Publisher : CV. Era Digital Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59066/jppm.v5i2.2427

Abstract

Mangrove merupakan sumber daya alam yang potensial bagi pemeliharaan lingkungan dan dari sudut sosial ekonomi. Pada umumnya, mangrove dimanfaatkan tanpa mempertimbangkan aspek kelestarian lingkungan sehingga menimbulkan kerusakan lingkungan. Penelitian ini bertujuan untuk menemukan model pengelolaan wilayah mangrove yang mendukung kepada terjaganya kelestarian lingkungan melalui konsep eduekowisata. Data primer dikumpulkan dari 74 KK yang mewakili populasi sebanyak 289 KK tersebar di empat desa, yaitu Desa Warsambin, Lopintol, Kalitoko, dan Mumes dalam wilayah Distrik Teluk Mayalibit Kabupaten Raja Ampat. Data sekunder diperoleh dari instansi-instansi terkait seperti kantor desa terpilih, Dinas Kehutanan Kabupaten Raja Ampat, Bappeda Kabupaten Raja Ampat, BPS, dan lainnya. Data sekunder yang dikumpulkan diantaranya tentang data luas dan distribusi mangrove dan data lain yang terkait dengan tujuan penelitian ini. Hasil penelitian merekomendasikan model pengelolaan mangrove dan ekosistemnya untuk lokasi terpilih adalah model eduekowisata mangrove dengan melibatkan masyarakat secara aktif. Kendala utama saat ini adalah perilaku masyarakat (pengetahuan, sikap, dan keterampilan) dalam pemanfaatan mangrove dan ekosistemnya masih rendah, karena itu dibutuhkan sosialisasi dan pendampingan yang intensif bagi masyarakat tentang pengeloaan mangrove dan ekosistemnya dalam mengembangkan eduekowisata mangrove. Kerjasama antara masyarakat, pemerintah dan pihak swasta mutlak diperlukan dalam pengembangan eduekowisata mangrove dan dibutuhkan pula kajian yang komprehensif dan mendalam terhadap mangrove dan ekosistemnya serta kondisi sosial, ekonomi, dan budaya masyarakat dalam menyusun rencana pengembangan eduekowisata mangrove di daerah ini.
KAJIAN TERMINOLOGI BOTANI DAN EKOLOGI TERHADAP ISTILAH TUMBUHAN, TANAMAN, VEGETASI, FLORA, DAN TEGAKAN Queen Athalia Deborah Rante; Irwanto Irwanto
MARSEGU : Jurnal Sains dan Teknologi Vol. 1 No. 12 (2025): MARSEGU : Jurnal Sains dan Teknologi
Publisher : PT. BARRINGTONIA ASIATICA LESTARI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69840/marsegu/1.12.2025.1225-1231

Abstract

In biological and ecological sciences, the terms tumbuhan (plant/organism), tanaman (cultivated plant), vegetasi (vegetation), flora, and tegakan (stand) are often used interchangeably in everyday discourse. However, these five terms carry distinct definitions, scopes, and conceptual contexts. This article aims to examine and clarify the differences among these terms through terminological, ecological, and biogeographical approaches. Through a literature review of prominent botanical and ecological sources, the study concludes that: (1) tumbuhan refers to individual autotrophic, chlorophyll-bearing organisms as biological entities within taxonomic classification; (2) tanaman refers to plants cultivated by humans for specific purposes and benefits; (3) vegetasi denotes the collective community of plants covering a given area from an ecological perspective; (4) flora refers to the totality of plant species present in a specific geographical region within a biogeographical framework; and (5) tegakan refers to a group of trees or woody plants growing together in a defined area with relative uniformity in composition, structure, and growth conditions. A precise understanding of these five terms is essential for researchers, students, and practitioners in the fields of biology, ecology, forestry, agriculture, and nature conservation.
PELATIHAN PERBANYAKAN TANAMAN MULTI-PURPOSE TREE SPECIES MELALUI TEKNIK OKULASI, SAMBUNG PUCUK, DAN STEK KEPADA SISWA SMKN PERTANIAN PEMBANGUNAN AMBON Andjela Sahupala; Marthini Kristina Lesilolo; Jimmy Johanson Fransz; Irwanto Irwanto
BAKIRA: Jurnal Pengabdian Kepada Masyarakat Vol 7 No 1 (2026): BAKIRA : Jurnal Pengabdian Kepada Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LP2M) Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/bakira.2026.7.1.33-42

Abstract

This community service activity aimed to improve the knowledge and skills of students of SMKN Pertanian Pembangunan Ambon in vegetative propagation techniques for Multi-Purpose Tree Species (MPTS) plants, including budding, grafting, and cuttings. The participants consisted of 20 students from SMKN Pertanian Pembangunan Ambon. The implementation methods included interactive lectures, demonstrations of propagation techniques, direct field practice, as well as discussions and evaluations. The activity was conducted at the Greenhouse of the Faculty of Agriculture, Universitas Pattimura on November 25–26, 2026. The evaluation results showed a 60% increase in students’ knowledge and a 65% improvement in practical skills compared to before the training. All participants were able to independently practice the cutting technique, while more than 85% of participants successfully mastered budding and grafting techniques. The participant satisfaction level with this activity reached 90%. This activity is expected to support the development of students’ competencies in horticultural agribusiness and prepare them to enter the workforce or become entrepreneurs in the agricultural sector.
BIOMASSA TUMBUHAN BAWAH PADA BERBAGAI TIPE HUTAN ALAM DI NEGERI HATUSUA. PROVINSI MALUKU. Moh Firdaus Rahawarin; Irwanto Irwanto; Miranda Hadijah
MARSEGU : Jurnal Sains dan Teknologi Vol. 1 No. 11 (2025): MARSEGU : Jurnal Sains dan Teknologi
Publisher : PT. BARRINGTONIA ASIATICA LESTARI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69840/marsegu/1.11.2025.1113-1128

Abstract

Understory biomass plays an important role in maintaining forest ecosystem balance and the carbon cycle. This study aims to measure and compare understory biomass across various natural forest types in Hatusua Village, Maluku, namely Coastal Forest, Mangrove Forest, Dominant Aren Forest, and Lowland Forest. The method used includes systematic sampling with 2x2 meter plots, considering dense, moderate, and sparse conditions, where all understory plants were collected, weighed, and dried to estimate dry biomass. The results showed that the highest biomass was found in the Coastal Forest (2,716.14 kg/ha), followed by the Mangrove Forest (2,545.87 kg/ha), the Lowland Forest (1,841.72 kg/ha), and the lowest in the Dominant Aren Forest (1,629.33 kg/ha). This biomass variation is influenced by light intensity, soil conditions, and vegetation structure. Carbon content calculations based on biomass indicate that the Coastal Forest has the highest carbon storage, followed by the Mangrove Forest, Lowland Forest, and Dominant Aren Forest. This study confirms that understory biomass is a vital component of forest ecosystems, requiring attention in conservation efforts and climate change mitigation.
BIOMASSA SERASAH PADA BERBAGAI TIPE HUTAN ALAM DI NEGERI HATUSUA. PROVINSI MALUKU. Abdul Latupono; Irwanto Irwanto; Miranda Hadijah
MARSEGU : Jurnal Sains dan Teknologi Vol. 1 No. 11 (2025): MARSEGU : Jurnal Sains dan Teknologi
Publisher : PT. BARRINGTONIA ASIATICA LESTARI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69840/marsegu/1.11.2025.1140-1152

Abstract

Litter biomass is an essential component of forest ecosystems, playing a role in nutrient cycling, soil stability, and carbon storage. This study aims to measure and compare litter biomass across various types of natural forests in Hatusua Village, namely Coastal Forest, Mangrove Forest, Dominant Aren Forest, and Lowland Forest. The method used involved collecting litter samples from 2 × 2 meter plots, followed by drying and weighing to estimate dry biomass. The results showed that the highest litter biomass was found in Dominant Aren Forest (7,400.56 kg/ha), followed by Coastal Forest (5,773.71 kg/ha), Lowland Forest (1,798.55 kg/ha), and the lowest in Mangrove Forest (1,547.36 kg/ha). Differences in litter biomass among forest types were influenced by vegetation type, litter density, decomposition rates, and environmental conditions. This information is crucial for sustainable forest management and climate change mitigation through carbon storage in forest litter.
KERAGAMAN FENOTIPE DAUN MERANTI PUTIH (Anthoshorea montigena) DI PULAU SERAM Christofer Wattimena; Johan M. Matinahoru; Irwanto Irwanto
MARSEGU : Jurnal Sains dan Teknologi Vol. 2 No. 11 (2026): MARSEGU : Jurnal Sains dan Teknologi
Publisher : PT. BARRINGTONIA ASIATICA LESTARI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69840/marsegu/2.11.2026.826-841

Abstract

This study examines the phenotypic diversity of White Meranti (Anthoshorea montigena) leaves in Seram Island by analyzing leaf morphology across four sites: Honitetu, Latu, Haya, and Masihulan. The research aims to identify similarities in leaf characteristics among locations and to evaluate the influence of environmental factors on phenotypic variation. A purposive sampling survey was conducted, with both quantitative and qualitative data analyzed using ANOVA and regression. Results revealed significant variation in leaf area, primary vein length, and number of secondary veins. Environmental factors contributed differently at each site: light intensity affected 32.54% of leaf area in Honitetu, air humidity 30.86% in Latu, soil fertility 51.98% in Haya, and humidity 22.41% in Masihulan. The phenogram indicated 85% similarity between Honitetu and Latu, 80% with Haya, and greater divergence with Masihulan. These findings provide valuable insights for future breeding and conservation of White Meranti (Anthoshorea montigena).
Sosialisasi Pemilihan Jenis Tanaman Pada Tanah Ber-pH Asam Dalam Upaya Peningkatan Produktivitas Lahan Pertanian Di Dusun Karanjang Ambon Andjela Sahupala; Irwanto Irwanto
PENGAMATAN: Jurnal Pengabdian Masyarakat untuk Ilmu MIPA dan Terapannya Vol 3 No 2 (2025): PENGAMATAN: Jurnal Pengabdian Masyarakat untuk Ilmu MIPA dan Terapannya
Publisher : Jurusan Matematika FMIPA Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/pengamatanv3i2p67-76

Abstract

Acidic soil with pH < 6 is one of the main constraints in agricultural development in tropical areas, including in Karanjang Hamlet, Wayame Village. This condition causes low nutrient availability and metal toxicity that inhibits plant growth. This community service aims to increase farmers' knowledge about selecting plant species that are tolerant to acidic soil and land management techniques. The method used is a participatory approach through extension, demonstration, and hands-on practice involving 30 farmers in Karanjang Hamlet. Extension activities were conducted on May 23, 2025, with materials covering characteristics of acidic soil, pH effects on plants, tolerant plant species, and soil amelioration techniques. The results showed a 75% increase in farmers' knowledge about acid-tolerant plants such as cassava, corn, peanuts, and coffee. Practice evaluation showed that 80% of participants were able to identify symptoms of soil acidity and apply liming techniques and organic matter application. This program successfully increased farmers' awareness about the importance of acidic soil management for sustainable agricultural productivity.
Co-Authors Abdan Sukur Ely Abdul Latupono Andjela Sahupala Andjela Sahupala Andjela Sahupala Andri Tuhumury Billy Gilbert Anthonius Boreel, Aryanto Christofer Wattimena Cornelia Marietje Aneke Wattimena Creysmen Ginesio Pentury Demianus Tamala Donald Dias Ega, La Elfrida Ratnawati Esther Kembauw Febian Filiph Tetelay Ferdinandus, Stenly Jacobus Fredy Hendry Louhenapessy Fredy Hendry Louhenapessy Gun Mardiatmoko Hendrina Lelloltery Herman - Siruru Inta P. N. Damanik Iskar Iskar Iskar, Iskar Jan W. Hatulesila Jimmy Johanson Fransz Jimmy Johanson Fransz Jimmy Titarsole Johan M. Matinahoru Labetubun, Agung Herat Leonard Dantje Liliefna Leonard Dantje Liliefna Lesly Latupapua Lieke Tan Loppies, Ronny Louhenapessy, Fredy Hendry Lydia Riekie Parera Marthini Kristina Lesilolo Meilvis E. Tahitu Miranda Hadijah Moda Talaohu Moda Talaohu Moh Firdaus Rahawarin Muhammad Faisal Noel Bernard Paembonan, Samuel Arung Putu Oka Ngakan Queen Athalia Deborah Rante Regar, Erfendi Renwarin, Nur Muhammad Risma Illa Maulany Rohny Setiawan Maail Seipalla, Billy Setiani Br Ginting Siahaya, Ludia Sinay, Lexy J. Sintia Cornelia Br Gurusinga Siruru, Herman Sofia Mustamu Soselisa, Fanny Talaohu, Moda Tetelay, Febian F Tupan, Johan M. Wenno, Meiske Yali Joko Istia, Yali Joko Istia Yatim, Hertasning Yulianus Dominggus Komul