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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 Sains dan Teknologi Jurnal Riset Rumpun Ilmu Tanaman BAKIRA: Jurnal Pengabdian Kepada Masyarakat Ardhi: Jurnal Pengabdian dalam Negri MARSEGU : Jurnal Sains dan Teknologi Jurnal Pengabdian Cendekia
Irwanto Irwanto
Jurusan Kehutanan Fakultas Pertanian Universitas Pattimura Ambon Jl. Ir. M. Putuhena, Kampus Poka Ambon 97237
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ANALISIS PENYEBARAN LASA (Castanopsis buruana Miq) SEBAGAI POHON PENGHASIL PANGAN ALTERNATIF DI SERAM BAGIAN BARAT MALUKU Irwanto Irwanto; Andri Tuhumury; Andjela Sahupala
JURNAL HUTAN PULAU-PULAU KECIL Vol 2 No 2 (2018): JHPPK
Publisher : Program Studi Manajemen Hutan, Pascasarjana Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1155.941 KB)

Abstract

Penelitian ini bertujuan untuk mengetahui penyebaran Lasa (Castanopsis buruana Miq) dan pemanfaatannya sebagai bahan makanan alternatif oleh masyarakat Seram Bagian Barat Provinsi Maluku. Analisis penyebaran Lasa (Castanopsis buruana Miq) dipergunakan metode petak tunggal pada berbagai ketinggian tempat dengan ukuran petak 200 x 200 meter. Dalam petak tunggal ini dibuat sub-sub petak dengan ukuran sesuai tingkat pertumbuhan. Hasil penelitian menunjukan penyebaran pohon Lasa (Castanopsis buruana Miq) berada pada ketinggian di atas 300 mdpl. Potensi penyebaran pada ketinggian 300, 400, 500 mdpl di Desa Hunitetu adalah sebagai berikut 120 pohon/ha, 135 pohon/ha, dan 130 pohon/ha sedangkan Desa Murnaten sebesar 105 pohon/ha, 130 pohon/ha, dan 135 pohon/ha. Indeks Morisita menunjukkan Lasa (Castanopsis buruana Miq) memiliki pola sebaran mengelompok (clumped) dengan struktur populasi bentuk kurva “J” terbalik atau memiliki jumlah individu paling banyak pada tingkat permudaan. Masyarakat Desa Hunitetu memanfaatkan biji Lasa (Castanopsis buruana Miq) sebagai cemilan dan snack serta diolah menjadi pengganti beras, dimasak dengan air sebagai nasi atau dimasak dengan santan sebagai bubur.
ANALISIS NILAI INDEKS KEHIJAUAN (NDVI) PADA POLA RUANG KOTA AMBON, PROVINSI MALUKU Jan Willem Hatulesila; Gun Mardiatmoko; Irwanto Irwanto
JURNAL HUTAN PULAU-PULAU KECIL Vol 3 No 1 (2019): JHPPK
Publisher : Program Studi Manajemen Hutan, Pascasarjana Universitas Pattimura

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Abstract

Green Open Space is a component of landscaping that greatly affects urban air both directly and indirectly. The ideal standard minimum area of ​​green open space is at least 30% of the total area of ​​the city.The study used a spatial analysis method through the approach to calculating the Normalized Difference Vegetation Index (NDVI) for vegetation cover. Overlay analysis of GIS vegetation cover maps with the Ambon city spatial pattern map, has produced a map of the city green open spatial model, which shows a picture of existing corridors of green open space patterns, building spatial patterns, and non-vegetation spatial patterns (vacant land) .The results of the analysis of the green open space model map recommend the need for areas with urban park areas, park spots areas, and tree corridor areas planted on either side of the road. Inventory method, analysis of spatial and observations carried out at nine sampling locations, showed that the location of Ambon City's green open space was ± 1.115.900 m2 or 111,59 ha, with cover of understorey vegetation (grasses and saplings) 16,31 ha. Estimated carbon content of understorey vegetation (grasses and saplings) 52,49 kg/ha and 883 kg/ha of pole and tree vegetation. Normalized Difference Vegetation Index (NDVI) in nine sampling locations of Ambon City's green open space, for the area of vegetation cover is 61.58 ha or 58.31%, building area 39.63 ha or 37.52% and vacant land 4.40 ha or 4.17%.
KOMBINASI JENIS TANAMAN POLA DUSUNG PADA BERBAGAI KETINGGIAN TEMPAT DI NEGERI LUHU SERAM BARAT Irwanto Irwanto; Jan W. Hatulesila; Moda Talaohu; Abdan Sukur Ely
JURNAL HUTAN PULAU-PULAU KECIL Vol 6 No 1 (2022): JHPPK
Publisher : Program Studi Manajemen Hutan, Pascasarjana Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jhppk.v6i1.5796

Abstract

This study aims to determine the structure and composition of plant species in Dusung land management in Luhu Village, discover the combination of plant species at various altitudes, and compare MPTS (Multi-Purpose Tree Species) plants and woods in the Dusung pattern. The sampling used the Stratified Sampling method, i.e., selecting locations based on altitude according to the research objectives and vegetation analysis carried out by the plot line method. For each altitude, 15 plots were made for each growth stage for vegetation sampling by recording the species, number, diameter at breast height (dbh) for the stage of poles and trees. The combination of the Dusung pattern plant species in Luhu Village is distinguishable at each altitude. Cloves are dominant at an altitude of >300-500 masl and >500 masl. The Sago tree stage is dominant at an altitude of 0-300 masl, while the dominant pole stage is Cocoa at 0-300 masl. The higher the site, the smaller the combination of plant species found in the Dusung Pattern in Luhu Village. The community prefers the combination of MPTS plants over wood species on Dusung in Luhu Village. The combination of plants in the Dusung Pattern research plot did not find short-lived plants (annual). It only found long-lived plants, i.e., trees (perennial) with a vegetation structure similar to a forest; therefore, it is more suitable to be called "Forest Garden".
SOSIALISASI DAN REHABILITASI EKOSISTEM MANGROVE DI DESA BUANO SELATAN SERAM BARAT MALUKU Irwanto Irwanto
BAKIRA: Jurnal Pengabdian Kepada Masyarakat Vol 3 No 1 (2022): 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.2022.3.1.11-20

Abstract

As a component of the coastal ecosystem, mangroves play an important role, both in maintaining coastal productivity and in supporting the human lives especially of the surrounding communities. The rehabilitation of the mangrove ecosystems in South Buano Village, West Seram, was the program of the Maritime Affairs and Fisheries Service of Maluku Province, which involved the participation of the local communities. The socialization was carried out at the South Buano District Office on December 6th, 2021, attended by the Buano Village communities. The participants, who attended the meeting, came from various age levels, including parents and children. Mothers and school-age children dominated the majority of the participants. The involvement of the community in this mangrove rehabilitation was important because they would gain the awareness in maintaining the sustainability of the mangrove ecosystem. Mangrove tree planting that involves school age children would provide knowledge and could foster a sense of love for mangroves since the early age.
PENDAMPINGAN TERHADAP SISWA-SISWI SMA SWASTA KRISTEN YPKPM AMBON UNTUK PENGAMBILAN DATA DALAM MENGHITUNG KANDUNGAN KARBON DI KOTA AMBON Herman Siruru; Irwanto Irwanto; Iskar Iskar; Leonard Dantje Liliefna; Donald Dias; Noel Bernard
BAKIRA: Jurnal Pengabdian Kepada Masyarakat Vol 3 No 1 (2022): 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.2022.3.1.36-44

Abstract

Initiated by the Christian Private High School, YPKPM Ambon, the strengthening of the Pancasila Student Profile, through one of its programs, motivated the students to be involved in the efforts to reduce the effects of global warming. This activity obtained assistance from the university staffs, especially those who have experiences in the measurements of carbon stocks in forests and other land uses. By the end of this activity, the student could figure out factors that caused global warming and were able to calculate the amount of the carbon stocks stored in various types of land covers. The results of the activity showed that the calculation of the above-surface carbon in the Urban Forest area, for each type, were as follows: dense vegetation (104.57 tons/ha), sparse vegetation (20.09 tons/ha) and Imperata cylindrica land (0.52 tons/ha), therefore, the absorption of carbon dioxide (CO2) stored in Dense Vegetation were 383.43 tons/ha, Sparse Vegetation were 73.68 tons/ha and Imperata cylindrica land were 1.90 tons/ha. This activity also suggested that urban forest areas with Imperata cylindrica closure type needed a land rehabilitation activity such as planting trees.
SOSIALISASI DAN PENANAMAN DALAM RANGKA REHABILITASI HUTAN PANTAI BERSAMA MASYARAKAT DI DESA HATUSUA KECAMATAN KAIRATU KABUPATEN SERAM BAGIAN BARAT Andjela Sahupala; Yulianus D. Komul; Irwanto Irwanto; Fanny Soselisa; Lesly Latupapua; Fredy Hendry Louhenapessy
BAKIRA: Jurnal Pengabdian Kepada Masyarakat Vol 3 No 2 (2022): 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.2022.3.2.75-82

Abstract

The aim of planting coastal vegetation in Hatusua Village is to rehabilitate damaged environmental conditions and support the recovery of coastal ecosystems. Beach forest rehabilitation activities are carried out in 2 stages, namely: First Stage; Socialization, training and assistance for farmer groups and the second stage is planting in the designated rehabilitation area. The species used in coastal forest rehabilitation are: Ketapang (Terminalia catappa), Hutung (Barringtonia asiatica) and Bintangur Pantai (Calophyllum inophyllum). Socialization, Training and Assistance of Farmers and Community Groups is carried out by the lecturer staff of the Department of Forestry, University of Pattimura to increase the knowledge and skills of coastal communities in carrying out beach forest rehabilitation. Planting activities are carried out jointly by academics, village government and the community. The participation of all parties needs to be increased in maintenance of tree species planted so that the plants can grow well in the field. In addition, cooperation is needed in monitoring various destructive community practices, which have a negative impact on the preservation of the beach forest of Hatusua Village.
SOSIALISASI PEMANFAATAN HASIL HUTAN BUKAN KAYU (HHBK) SEBAGAI SUMBER ENERGI ALTERNATIF Herman Siruru; Lieke Tan; Jimmy Titarsole; Leonard Dantje Liliefna; Rohny Setiawan Maail; Jimmy Johanson Fransz; Lydia Riekie Parera; Sofia Mustamu; Irwanto Irwanto; Billy Gilbert Anthonius; Sintia Cornelia Br Gurusinga; Setiani Br Ginting
BAKIRA: Jurnal Pengabdian Kepada Masyarakat Vol 4 No 2 (2023): 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.2023.4.2.78-86

Abstract

The energy needs of the world including Indonesia continue to increase every year. The most commonly used type of energy sources was dominated by fossil. Fossil energy sources were not environmentally friendly and were predicted to run out in a short period of time. Therefore, the alternative energy sources are needed, such as biomass or better known as bioenergy. The purpose of community service activities in Waai Village, Central Maluku Regency was to increase the community’s knowledge in utilizing biomass as an alternative energy source. The management of agroforestry in Waai village potentially produces many types of non-timber forest products (NTFPs) such as sago (Metroxylon sp.) which has husk as its waste after sago flour had been harvested for food. The implementation of the activity was held from July to August 2023, with activity phases including: social approach to the village government and AM GPM management and continued with visiting the community on Friday 11 August 2023. PKM activities were carried out in two sessions, first, delivery of material and practice of making charcoal briquettes starting from carbonization of sago bark, forming of charcoal briquettes and second, burning of the charcoal briquettes. The community was involved in the practice of making sago bark charcoal briquettes in order to raise their appreciations and increase their understanding of producing charcoal briquettes from sago bark.
SOSIALISASI SISTEM AGROFORESTRI UNTUK MENINGKATKAN KESUBURAN TANAH DAN PENDAPATAN MASYARAKAT DESA WAAI KECAMATAN SALAHUTU MALUKU TENGAH Irwanto, Irwanto; Sahupala, Andjela; Wattimena, Cornelia Marietje Aneke; Lelloltery, Henderina; Talaohu, Moda; Iskar, Iskar; Seipalla, Billy; Louhenapessy, Fredy Hendry
BAKIRA: Jurnal Pengabdian Kepada Masyarakat Vol 5 No 1 (2024): 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.2024.5.1.40-53

Abstract

Waai Village in Salahutu District, Central Maluku, is an area with diverse topography which poses challenges for agriculture and fisheries, such as soil erosion and landslides. To overcome this problem, an agroforestry system is implemented as a sustainable land management solution. This research aims to socialize and evaluate the implementation of agroforestry in Waai Village, with a focus on reducing erosion, increasing soil fertility, and diversifying community income. The implementation method involves lectures, presentations, practical training, and distribution of plant seeds. This activity was carried out on 11-12 August 2023 by the Forestry Study Program, Faculty of Agriculture, Pattimura University with the participation of the local community. An initial survey was conducted to understand soil conditions, slope and community knowledge about agroforestry. Lectures and presentations provide basic information and techniques for implementing agroforestry, while practical training introduces vegetative methods in growing agroforestry crops. The results of the activity show that the community has a high interest in implementing agroforestry, with a significant increase in understanding and skills. The evaluation shows a good level of satisfaction and strong commitment from the community to develop agroforestry systems. The implementation of agroforestry is expected to reduce erosion, increase soil fertility and diversify people's income through high-value products such as wood and fruit. Agroforestry offers an effective solution to overcome the problem of erosion and landslides in Waai Village, while improving the economic welfare and food security of the community.
Imperata vegetation succession and carbon stocks on degraded land of beach forest in Marsegu Island, Maluku, Indonesia Irwanto, Irwanto; Paembonan, Samuel Arung; Ngakan, Putu Oka; Maulany, Risma Illa; Sahupala, Andjela; Yatim, Hertasning
Journal of Degraded and Mining Lands Management Vol. 11 No. 2 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.112.5147

Abstract

Many sandy beach forests on small islands were cut down by people for farming to provide for their food needs. Land degraded due to over-exploitation is overgrown by Imperata cylindrica, which often causes fires in the dry season. This study aims to determine the species that occur in the secondary succession of Imperata grassland vegetation to assess soil fertility and differences in carbon stocks in various types of vegetation cover on the beach of Marsegu raised coral island. The measurement and calculation of carbon stocks used the Indonesian National Standard 7724:2011 with slight modifications in certain parts. The non-destructive method for calculating the above-ground and below-ground biomass used an allometric and the destructive method was carried out for understory and litter while the carbon content of the soil was taken compositely from several plots and layers and then analyzed in the laboratory. The results showed that the species that can grow and coexist with Imperata cylindrica is Timonius timon. In the final stage of the loss of Imperata cylindrica, the beach forest area was dominated by Terminalia catappa, Sterculia ceramica, and Cassia fistula. The soil's nutrient content of total N, P2O5 (available P) and cation exchange capacity (CEC) is low, with a very high sand texture percentage of 91-93%, which affects soil fertility. A comparison of total carbon stocks between differences in vegetation cover is the Imperata grassland area of 129.955 t/ha, the rehabilitation area is 82.920 t/ha, and the Terminalia vegetation is area 137.977 t/ha.
STRUKTUR DAN KOMPOSISI VEGETASI HUTAN ALAM NEGERI AMAHUSU KECAMATAN NUSANIWE KOTA AMBON Sapardi, Colin; Irwanto, Irwanto; Komul, Yulianus
MARSEGU : Jurnal Sains dan Teknologi Vol. 1 No. 8 (2024): MARSEGU : Jurnal Sains dan Teknologi
Publisher : PT. BARRINGTONIA ASIATICA LESTARI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69840/marsegu/1.8.2024.766-783

Abstract

This study aims to determine the structure and composition of the natural forest vegetation of Negeri Amahusu, Nusaniwe District, Ambon City. The sampling method used in this study is a combination of the grid line method and the path method to study the composition and structure of vegetation at the research location. In this study, 5 (five) observation paths were made, each path consisting of 5 plots with a size of 20 x 20 m for the tree level so that the observation path measures 20 x 100 m. While the sample plots for the pole level were made 10 x 10 m, the sapling level 5 x 5 m, and the seedling level 2 x 2 m. The results of the study showed that the Amahusu natural forest consists of 4 Stratifications (Strata A, B, D, and E) dominated by stratum B, where the height of stratum A trees ranges from 20-25 m while stratum B ranges from 8-19 m with dominant species including: Durian (Durio zibethinus), Canary (Canarium commune), and Linggua (Pterocarpus indicus). The composition of Amahusu forest species at the seedling level consists of 18 species, 20 species of saplings, 15 species of poles and 15 species of trees. The species diversity index is included in the medium category with an H' value at the seedling level of 1.148, saplings 1.174, poles 1.018 and trees 1.072.
Co-Authors Abdan Sukur Ely Andjela Sahupala Andri Tuhumury Billy Gilbert Anthonius Cornelia Marietje Aneke Wattimena Creysmen Ginesio Pentury Donald Dias Elfrida Ratnawati Febian Filiph Tetelay Fredy Hendry Louhenapessy Fredy Hendry Louhenapessy Gun Mardiatmoko Hadijah, Miranda Hendrina Lelloltery Herman Siruru Iskar Iskar Iskar, Iskar Jan W. Hatulesila Jimmy Johanson Fransz Jimmy Titarsole Komul, Yulianus Labetubun, Agung Herat Latupono, Abdul Leonard Dantje Liliefna Leonard Dantje Liliefna Lesly Latupapua Lieke Tan Loppies, Ronny Louhenapessy, Fredy Hendry Lydia Riekie Parera Matinahoru, Johan M Moda Talaohu Moda Talaohu Noel Bernard Paembonan, Samuel Arung Putu Oka Ngakan Rahawarin, Moh Firdaus Risma Illa Maulany Rohny Setiawan Maail Seipalla, Billy Setiani Br Ginting Sintia Cornelia Br Gurusinga Sofia Mustamu Soselisa, Fanny Talaohu, Moda Wattimena, Christofer Yatim, Hertasning