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All Journal Natural Science: Journal of Science and Technology JURNAL KIMIA SAINS DAN APLIKASI Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Biologi Universitas Andalas Majalah Obat Tradisional BERITA BIOLOGI JURNAL BIOLOGI INDONESIA Jurnal Biodjati Jurnal Biologi Tropis JURNAL PENDIDIKAN TAMBUSAI Biota Jurnal Pembelajaran dan Biologi Nukleus Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Unri Conference Series: Community Engagement Bioscientist : Jurnal Ilmiah Biologi Proceeding Biology Education Conference Journal of Community Engagement Research for Sustainability Al-Khidmah Jurnal Pengabdian Masyarakat JURNAL KIMIA SAINTEK DAN PENDIDIKAN Jurnal Karya Abdi Masyarakat Jurnal Abdi Inovatif : Pengabdian kepada Masyarakat Jurnal Pengabdian Masyarakat Bangsa Molekul: Jurnal Ilmiah Kimia
Chairul Chairul
Pusat Penelitian Biologi LIPI, Jl. Ir. H. Djuanda No. 18, Bogor
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Menggali Potensi Kelapa Sawit Pada Peningkatan Ekonomi Masyarakat Desa Kelumpang Jaya Kecamatan Nibung Kabupaten Musi Rawas Utara Perspektif Ekonomi Islam Kusbiantoro, Sigit; Rianti, Rianti; Fitria, Fitria; Sakutteri, Riza; Ristia Ningsi, Maya; Satria, Fitra; Chairul, Chairul
Al-Khidmah Jurnal Pengabdian Masyarakat Vol. 4 No. 2 (2024): OKTOBER
Publisher : Institute for Research and Community Service (LPPM) of the Islamic University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56013/jak.v4i2.3380

Abstract

Nowadays, there is a lot of organic waste that is not managed properly and appropriately. This happens in Dukuh Mencek Village, Sukorambi District, Jember Regency, every day it produces an abundance of organic waste but it does not receive serious handling by the village government or related parties. This rubbish is usually thrown into the river or piled up behind the house, causing an unpleasant odor. Therefore, handling is needed, namely managing organic waste into compost through organic waste bins or composters, which can later bring economic benefits to the manager. Organic waste bins or what are called composters are special disposal places for organic waste that can directly process waste into compost. This research aims to reduce the waste problem that is currently occurring in the village and provide education to the local community that processed organic waste can be useful and bring economic benefits. This management is carried out by providing appropriate innovative technology in the form of making organic waste bins as a means of breaking down waste into compost. The method used is to start with the initial steps of preparing the necessary materials, preparing the tools used, and modifying the trash can. The results of the activity of making organic waste bins, namely composers, were successfully implemented by Collaborative Real Work Lecture (KKN) 160 students in Dukuh Mencek Village, Sukorambi District, Jember Regency. This organic or compost bin is implemented on village agricultural land next to the catfish pond which is managed by the local village PKK women. Organic waste that has been processed takes around 14 days to 30 days to become compost.
Aplikasi Kertas Bekas untuk Seed paper sebagai Kampanye Budaya Cinta Lingkungan di Desa Batu Belah Kecamatan Kampar Utami, Syelvia Putri; Evelyn, Evelyn; Yusnimar, Yusnimar; Komalasari, Komalasari; Chairul, Chairul; Saputra, Edy
Unri Conference Series: Community Engagement Vol 6 (2024): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.6.83-86

Abstract

The increase in writing paper waste is quite large in office and educational areas. Likewise in households and the surrounding community. Therefore, the utilization of used paper into seed paper is an interesting thing to be tested in village communities. This community service activity aims to educate the community regarding the utilization of used paper into seed paper. This used paper is soaked in water then printed with a paper printing tool, then given flower seeds. The paper that is ready to be printed is then dried. Seed paper that is no longer used is then planted. This activity is expected to be an alternative to empowering used paper in the Batu Belah Village community, Kampar District.
Analysis of Biomass Organic and Inorganic Carbon Stocks in Silokek Karst Geopark Area, Sijunjung Regency Pertiwi, Vera; Chairul, Chairul; Syamsuardi, Syamsuardi
Biota Vol 17 No 2 (2024)
Publisher : Universitas Islam Negeri Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Climate change caused by increasing greenhouse gas emissions, especially CO2, and deforestation, is an urgent global issue. The REDD+ program initiated by the UN aims to reduce carbon emissions and increase carbon storage in forests. This research aims to measure and analyze biomass and organic and inorganic carbon reserves in the Silokek Geopark area, Sijunjung Regency. The method used in this research is non-destructive sampling and using a destructive sampling method. Transects were carried out using the transect method using purposive sampling and were made in 10 plots 100 m long with square plots measuring 10x10 m for trees, 5x5 m for saplings, and 2x2 m for undergrowth. Next, the limestone samples used the chip sampling method and XRF analysis. The research results showed that the total organic biomass was 326,748 tons/ha, carbon reserves were 153,571 tons/ha, and carbon absorption was 563,607 tons/ha, which is categorized as high. The inorganic carbon content in the Silokek Geopark karst area is 4,908.07 tons/ha and inorganic carbon absorption is 18,012.60 tons/ha
Analisis Potensi Desa Sebagai Landasan Pengembangan Program Kuliah Kerja Nyata Agrina, Agrina; Nasrul, Besri; Kornita, Sri Endang; Zahtamal, Zahtamal; Tampubolon, Dahlan; Mahatma, Radith; Firmanda, Hengki; Chairul, Chairul; Meiwanda, Geovani; Lesmana, Indra; Febrialismanto, Febrialismanto; Kurniadi, Romi
Jurnal Karya Abdi Masyarakat Vol. 6 No. 2 (2022): Jurnal Karya Abdi Masyarakat
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1058.735 KB) | DOI: 10.22437/jkam.v6i2.22289

Abstract

Potensi Pengembangan program pemberdayaan masyarakat harus berorientasi meningkatkan kesejahteraan masyarakat dengan menggunakan sumber daya yang ada. Program harus mempertimbangkan keunggulan yang dimiliki oleh suatu daerah. Oleh karena itu penting untuk melakukan analisis potensi desa sebelum mengambangkan sebuah program pengabdian kepada masyarakat. Kuliah Kerja Nyata (Kukerta) merupakan salah satu bentuk program pengabdian masyaraat yang dimotori oleh mahasiswa dan dibimbing langsung oleh Dosen Pembimbing Lapangan. Dari tahun ke tahun program Kukerta terus berkembang menyesuaikan kondisi yang ada. Dalam rangka untuk memasimalkan rancangan program yang dilaksanakan, perlu dilakukan analisis potensi desa terlebih dahulu. Dalam melaksanakan analisis potensi desa, focus pemetaan akan dilaksanakan pada sector (a) perkebunan dan pangan, (b) pariwisata, (c) tambang dan energi, (d) industry, serta (e) kesehatan. Lima indicator tersebut dijadikan sebagai acuan untuk penyusunan program. Data diperoleh melalui survey oleh mahasiswa Kukerta pada tahun 2022. Setelah itu data akan ditabulasi dan dipetakan untuk kemudian dijadikan bahan penyusunan model yang baru.
Alopecia in Bats from Tropical Urban Islands Syamsi, Fauziah; Novarino, Wilson; Dahelmi, Dahelmi; Chairul, Chairul
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.7188

Abstract

Background: Alopecia or alopecic syndrome is a hair loss condition on the body. Alopecia is caused by a wide variety of factors both internal to the individual (i.e. androgen activity, nutritional deficiencies, metabolic stress, hormonal imbalances) and external (i.e. human-induced pressures, allergens, ectoparasites, fungal dermatitis, bacterial, toxicities, environmental contaminant exposure, idiopathic disease, poor habitat conditions, anthropogenic activities, zinc deficiency, and ingestion of plant toxins). Methods: This study was conducted at four locations in Batam City, consisting of two fragmented forests in the city center and two islands far from the city area. Bats were captured using mist nets and harp traps with a total sampling effort of 120 net nights and 120 harp trap nights. Findings: This study captured 417 bats across seven species, with an overall alopecia prevalence of 10.79 %. The highest prevalence was found in Pipistrellus tenuis (100%), Kerivoula pellucida (50 %), and Macroglossus minimus (20 %), likely due to the small sample sizes of these species. Larger sample sizes resulted in lower prevalence rates: Balionycteris maculata (22.2 %), Cynopterus horsfieldii (11.1 %), C. brachyotis (9.2 %), and C. sphinx (6.86 %). The most severe hair loss generally occurs on the shoulders and neck. Some individuals show hair loss on the back, head, chest, abdomen, and other parts of the body. Alopecia is found in both males and females from mild to severe. The prevalence of alopecia in all species was higher in fragmented forests in urban to periurban, and rural areas. This was associated with differences in the level of anthropogenic pressure. Contribution: These findings provide a scientific contribution to understanding the relationship between alopecia in bats and anthropogenic pressures and highlight the importance of habitat conditions in population health in fragmented environments.
Komposisi dan Struktur Vegetasi Pohon pada Habitat Rafflesia arnoldii R.Br. di Kawasan Hutan Nagari Saniangbaka, Kabupaten Solok Chairul, Chairul; Najah, Muthiya Safinatun
Jurnal Biologi Universitas Andalas Vol 13 No 01 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.13.01.01-07.2025

Abstract

The research on the composition and structure of tree vegetation in the habitat of Rafflesia arnoldii R.Br. in the Saningbaka Forest area, X Koto Singkarak District, Solok Regency, was conducted from March to July 2024.The objective of this study was to ascertain the composition and structure of tree vegetation in the habitat of Rafflesia arnoldii. Vegetation analysis was performed using purposive sampling along a 50 x 20 m transect, with ten subplots measuring 10 x 10 m each. The results revealed a total of 49 individuals, 18 species, 14 genera, and 11 families were identified, with the dominant families being Urticaceae (34.7%) and Meliaceae (20.4%). Meanwhile, the Euphorbiaceae family (10.2%) was identified as the co-dominant family at this study location. The highest Importance Value Index (IVI) was found for the species Villebrunea rubescens (102.4%), while the lowest IVI was for Mallotus peltatus (5.79%). The diversity index at the study site was classified as moderate, with H' = 2.43. Two buds and six individual flowers of Rafflesia arnoldii were observed in the late blooming phase. The Tetrastigma species identified in the study area was T. leucostaphylum.
THE ANALYSIS OF THE IMPACT OF DIGITALIZATION ON INTERNATIONAL TRADE IN ENHANCING ECONOMIC GROWTH IN INDONESIA Chairul, Chairul; Nasution, Lia Nazliana; Rusiadi, Rusiadi
Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Vol. 9 No. 3 (2025): SEPTEMBER
Publisher : LPPM Univ. Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/abdidos.v9i3.2934

Abstract

This study examines the impact of digitalization on international trade and its role in boosting Indonesia’s economic growth using the Vector Autoregression (VAR) model. The variables analyzed are exports, imports, exchange rates, internet penetration (as a digitalization indicator), and GDP (as an economic growth indicator), with annual data from 2007–2024 sourced from the World Bank. Stationarity tests show all variables become stationary at first or second differences, while the Johansen cointegration test confirms four long-term relationships among them. The impulse response function (IRF) indicates GDP reacts variably to shocks in internet penetration, exchange rates, exports, and imports. Variance decomposition (FEVD) reveals that in the short term, variables are largely influenced by themselves, but in the medium and long term, internet penetration increasingly contributes to trade variables and GDP. These results highlight digitalization’s substantial role in enhancing trade performance and economic growth, emphasizing the need to strengthen digital infrastructure and integrate IT into the national trade system for inclusive, sustainable development.
Composition and Structure of Tree and Sapling Level Plants in Nagari Paru Forest, Sijunjung Regency Geovana, Savira; Chairul, Chairul; Mukhtar, Erizal
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4.9949

Abstract

This study discusses the composition and structure and estimates the potential carbon reserves and environmental service value of the Nagari Paru Forest (Rimbo Larangan) in Sijunjung Regency, West Sumatra. The method used was the transect method with purposive sampling. The vegetation observed consisted of trees and tree seedlings. The results showed that the tree-level vegetation consisted of 17 families, 21 genera, 23 species, and 53 individuals, with Hopea sangal as the dominant species, while the sapling-level vegetation consisted of 17 families, 23 genera, 24 species, and 94 individuals, dominated by Drepananthus ramuliflorus. The diversity index (H') was moderate, at 2.95 for trees and 2.74 for seedlings. This study shows that the Nagari Paru Forest has great ecological potential and can support climate change mitigation efforts and community empowerment through environmental service schemes.
Estimated Tree Carbon Reserves and Saplings in the Nagari Sumpur Kudus Social Forestry Area, Sijunjung Regency Amanda, Falencia Mauri; Chairul, Chairul; Solfiyeni, Solfiyeni; Mukhtar, Erizal
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i1.6552

Abstract

The forest within The Social Forestry of Nagari Sumpur Kudus, Sijunjung Regency has the ability to store carbon reserves. The forest area located in the highlands shows a lot of biodiversity, influenced by the ability of the forest to maintain carbon stocks and diverse plant species in the area. The purpose of this study is to determine the total biomass and total carbon stocks stored in the Social Forestry Area of Nagari Sumpur Kudus, Sijunjung Regency. This research was conducted from May to October 2023. Taking at tree and sapling strata uses a nondestructive sampling method. From the results, it is obtained that the three strata are as many as 14 families and 14 species. The sapling strata is obtained from as many as 17 families and 37 species. The total above-ground biomass is l78,97 ton/ha consisting of 177,83 ton/ha tree biomass and 1,13 ton/ha sapling biomass. The total above-ground carbon stock is 86,11 ton/ha consisting of tree carbon stock 85,58 ton/ha and sapling carbon stock 0,53 ton/ha. The Social Forestry Area of Nagari Sumpur Kudus, Sijunjung Regency has the potential to store carbon stocks which is included in the medium category and need to be maintained.
Potential Carbon Content and Inorganic Carbon Sequestration in the Karst Area of Silokek Geopark, Sijunjung Regency Pertiwi, Vera; Chairul, Chairul; Syamsuardi, Syamsuardi
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7432

Abstract

Climate change caused by increasing greenhouse gas emissions, especially CO2, and deforestation, is an urgent global issue. The REDD+ program initiated by the UN aims to reduce carbon emissions and increase carbon storage in forests. One of the forests that can reserve carbon is the karst area with the ability to reserve carbon dioxide (CO2). This study aims to determine the potential carbon content and carbon dioxide (CO2) sequestration. This study was conducted using the chip sampling method and the XRF (X-ray Fluorescence) method analysis. Based on the research results, it is known that the Silokek Geopark karst area has three different limestone rock characteristics, and sample 3 is the type of rock with the highest CaO percentage. The potential inorganic carbon content is 4,908.07 tons/ha and carbon absorption is 18,012.60 tons/ha, categorized as high. The inorganic carbon content in the Silokek Geopark area is lower than the Biduk-biduk Karst area which is influenced by the area volume area and type of rock composition.
Co-Authors , Deviona, , Ade Ayu Oksari Afriansyah Afriansyah Agrina, Agrina Alzuro, Muhammad Huday Amanda, Falencia Mauri ANDRIA AGUSTA Anggoro, Zulfri Prio Anjelika, Feblin Isma Annisa, Syarifah Sari Apriliani, Prapita Ardesta, Ribbi Sukma Armaini, Armaini Arofi, Habib Asral, Asral Astrandana, Yudi Besri Nasrul Br. Silaban, Nesia Rachel Lina Dahelmi Dahelmi Dahlan Tampubolon Darliansyah, Danny Desi Heltina Dewi Kusrini DEWI WULANSARI Dirgantara, Doni Ari Drastinawati Drastinawati, Drastinawati Efitra, Mildria Emelda, Retta Emma Sri Kuncari Erizal Mukhtar EVELYN EVELYN Fadhlan, Adli Fauziah Syamsi Febiani, Hartika Febrialismanto, Febrialismanto Febriamansyah, Thoriq Alfath Febriansyah, Beni Fermi, Iwan Filda, Aiska Fitria Fitria Geovana, Savira Geovani Meiwanda Ginting, Theresia Ellyandra Destri Gunawan Tabrani Habinuya, Senriella Hasibuan, Muhammad Ilham Febrian Mahodum Hendra, Alfino Hengki Firmanda Hijran, Muhammad Hafiyyan Naufal Humairah, Bilqis Armadini Indra Lesmana Indriana, Hanifah Irvan Fadli Wanda Izmiarti Izmiarti, Izmiarti Kamilyandri, Kamilyandri Karimi, Kasman Khairunnisa, Syakira Nada Khoirul Amru Nst, Khoirul Amru Komalasari Komalasari Kurniawan, Abdy Kusbiantoro, Sigit Lia Nazliana Nasution M. Fadli M. Idris Mairawita, Mairawita Maisalma, Putri Maria Peratenta S, Maria Peratenta Maria Peratenta Sembiring Marpaung, Masdalena Marqfirokh, Ramadhana Marzuki, Salman Miftahul Jannah Mildawati Mildawati Muchtar, Erizal Muh Wawan Junuansyah, Muh Wawan Muhammad Furqan, Muhammad Najah, Muthiya Safinatun Nelvia Nelvia Ningsih, Lisa Septia Nurainas Nurainas Nurwijayanti Nuryanti, Lidya Ohi, Hiroshi Pertiwi, Vera Presi, Familindo Putri, Alivia Hardana Putri, Novia Anas Radith Mahatma Rahimmi, Anna Fithra Rahmah, Yulia Rasya, Nabila Rianti, Rianti Ristia Ningsi, Maya Rohaya, Rohaya Romi Kurniadi S., Tikkos Maruhum Saefudin Saefudin Safitri, Nadira Sakutteri, Riza Salsabilla, Dhiyya Sandy, Athifah Faradilla Satria, Fitra Sayyidhani, Muhammad Hisna Sefmaliza, Rizka Serly Marselina Arifin, Serly Marselina Silaban, Kardiman Silvia Reni Yenti Simanjuntak, Billy Oktavianus Simanjuntak, Tagonna Serasi Asnita Sinaga, Raihan Daffansyah Sitinjak, Jufri Suanto Sitompul, Diantika Elena Sitorus, Wahyu Sofnie M Chairul Sofnie Marusin Soleh Kosela Solfiyeni Solfiyeni Sri Budi Sulianti, Sri Budi Sri Endang Kornita Sri Rezeki Muria Sunardi Sunardi Suwirmen, Suwirmen SYAIFUL BAHRI Syamsuardi Syamsuardi Syelvia Putri Utami Tasman, Annaya Qamara Tesri Maideliza Tibrani Tibrani, Tibrani Tri Murningsih, Tri Triani, Leni Villarul, Trya Nungky Wahyu Hidayat Wahyu, Pri Widodo, Prio Wilson Novarino Wulandari, Siti Rahmi Indri Wulandari, Zarah Ayu Yasminto, Habib Maulana Yasra, Firham Yaumil Mutia Akhir, Yaumil Mutia Yayan Setiawan, Yayan Yelmida Azis Yuanita, Mira Yuliana Yuliana Yulianda, Aldi Yuliasri Jamal Yusnimar Sahan Zahtamal Zahtamal Zainul, Zuherti Zulaspita, Witri Zulfansyah Zulfansyah Zultiniar, Zultiniar