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All Journal POSITRON Jurnal Penelitian Fisika dan Aplikasinya (JPFA) TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Fisika Unand Emerging Science Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Logista: Jurnal Ilmiah Pengabdian Kepada Masyarakat Jurnal Hilirisasi IPTEKS (JHI) Jurnal Ilmu Fisika MONSU'ANI TANO Jurnal Pengabdian Masyarakat Riyadhoh : Jurnal Pendidikan Olahraga BERNAS: Jurnal Pengabdian Kepada Masyarakat Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks
Marzuki Marzuki
Department Of Physics, Faculty Of Mathematics And Natural Sciences, Universitas Andalas, Padang 2516, West Sumatra, Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Dentistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

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Land Cover Change in Riau Province and Its Implications for Carbon Stock and CO₂ Emissions Ramadani Safitri; Marzuki Marzuki; Eko Priyanda; Syafira Salsabila; Ridwan Ridwan; Riki Rahman
Jurnal Fisika Unand Vol 15 No 2 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.15.2.221-228.2026

Abstract

This study aims to analyze peatland land cover changes in Riau Province during 2012, 2016, 2020, and 2024 and their implications for carbon stock and CO₂ emissions. The study used Landsat 7 ETM+ and Landsat 8 OLI/TIRS satellite imagery processed through supervised classification and multitemporal overlay analysis using ArcGIS. The results indicate that vegetation remained the dominant land cover class but experienced a cumulative decline of 1,393,360 ha, especially during 2016–2020 following the 2015 major fires, while built-up areas increased by 249,357 ha. This vegetation loss significantly affected carbon stocks, with an estimated loss of 418,008,000 tons C or 1,534,089,360 tons CO₂, and the 2016–2020 period contributed most to emissions. These findings confirm that peatland land cover changes are not only spatially significant but also influence carbon dynamics and greenhouse gas emissions. Multitemporal remote sensing analysis proved effective in monitoring land cover changes and estimating carbon emissions, providing a scientific basis for sustainable peatland management and regional climate change mitigation strategies.
PENERAPAN KONSEP HUKUM BERNOULLI UNTUK MENGATASI KRISIS AIR PADA KELOMPOK TANI PADI JORONG BATU GADANG DI KENAGARIAN KATIALO KABUPATEN SOLOK, SUMATERA BARAT Marzuki Marzuki; Ahmad Fauzi Pohan; Afdal Afdal; Trengginas Eka Putra Sutantyo
Jurnal Hilirisasi IPTEKS Vol. 4 No. 1 (2021)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v4i1.486

Abstract

This activity aims to apply Bernoulli's law to the piping system in the hydrant pump to meet the needs of residents in bathing, washing, and irrigating the fields. The activity begins with conducting a site review survey, counseling and determining the location of pump placement, making pumps and towers, and lifting pumps and towers to the location. Then the activities at the location are divided into several parts, including the manufacture of civil and mechanical pump systems and testing the success of the pump system. This activity carried out the manufacture of hydrant pumps by installing pipes using Bernoulli's law to meet the needs of the residents of Jorong Batu Gadang, totaling 30 families and irrigating rice fields covering an area of 78 ha, which are rainfed rice fields. The results of the activities carried out at Nagari Katialo, Jorong Batu Gadang in applying the concept of Bernoulli's Law to the piping system at the hydrant pump made water faster to reach the highest point of the piping system that had been made. As for the difference in height between the position of the pump and the water level in the reservoir (tank) of 30 meters, the flow of water rising to the tank is 2 liters/second. The people of Jorong Katialo can already enjoy the water stored in the reservoir. The success of this pump system is shown from less than 10 minutes of testing the water successfully to the water reservoir above the tower with a height difference of 30 meters from the placement of the hydrant pump.
SOSIALISASI DAN PEMETAAN POTENSI TANAH LONGSOR MENGGUNAKAN METODE MIKROSEISMIK DAN GEOLISTRIK DI KAWASAN OBJEK WISATA BUKIT NOBITA Marzuki Marzuki; Mutya Vonnisa; Ahmad Fauzi Pohan; Arif Budiman; Imam Taufiq; Trengginas Eka Putra Sutantyo; Elistia Liza Namigo; Dian Milvita; Alimin Mahyudin; Nini Firmawati; Muldarisnur Muldarisnur; Afdal Afdal; Dahyunir Dahlan; M. Ali Shafii; Afdhal Muttaqin; Rico Adrial; Dedi Mardiansyah; Harmadi Harmadi; Zulfi Zulfi; Geby Sri Ayu Oktavia; Fani Anjelina; Nurul Annisa
Jurnal Hilirisasi IPTEKS Vol. 6 No. 2 (2023)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v6i2.655

Abstract

Nobita Hill is one of the areas being developed as a tourist attraction in the city of Padang. Above Nobita Hill is a beautiful view, and you can see the picture of Padang City. However, the hilly topography with steep slopes makes this area prone to landslides. This activity aims to map the potential for landslides on Novita Hill. Activities start from preparation, implementation in the field, and evaluation. Field activities are carried out in two stages. The first stage is an experiment to map the landslide potential. The second stage is socialization. The target audience for this activity is the Village Head of Jua Nan XX Village and its officials and the community around Nobita Hill. The results of the study and mapping were disseminated to the village administration and community leaders involved in the development of the Bukit Nobita tourism area, which was carried out on November 16, 2022. The result of tourist objects often changes land use and cover. However, mitigation of the potential for landslides in this area has never been done. Therefore, the Andalas University Physics Department team mapped the potential for landslides on Novita Hill for six months, using microseismic and geoelectric methods. This activity obtained a map of the distribution of dominant frequencies, a map of the distribution of amplification, and an identification of slip planes concerning the potential for landslides on Nobita Hill. Furthermore, the results of the mapping and mitigation efforts have been disseminated to the village administration and community leaders involved in the development of the Bukit Nobita tourism area. This activity was carried out well. The landslide potential distribution map obtained from this activity is input for the community and stakeholders in developing the Buki Nobita tourist attraction that is safe from disasters.
Long-Term Crustal Deformation along the Southern Java Subduction Margin Revealed by GNSS Observations Vira Friska; Marzuki Marzuki; Nurdin Nurdin; Fadilla Monica
Jurnal Ilmu Fisika Vol 18 No 1 (2026): March 2026
Publisher : Jurusan Fisika FMIPA Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.18.1.55-66.2026

Abstract

This study examines long-term GNSS-derived velocities along southern Java during 2011–2020 to characterize regional crustal deformation. Data from six InaCORS stations operated by BIG were processed using GAMIT/GLOBK to produce time series and estimate horizontal and vertical velocities. Horizontal velocities range from 21.35 mm/yr to 27.54 mm/yr toward the southeast, reflecting strong Eurasian Plate influence. The time series indicates gradual, continuous displacement without significant co-seismic offsets, despite several Mw ~6 earthquakes in the region. Vertical velocities show both uplift and subsidence, ranging from −13.84 mm/yr to 12.61 mm/yr, likely resulting from combined tectonic and non-tectonic processes. Because vertical GNSS measurements generally have higher uncertainty, these results must be interpreted cautiously. Although station motions appear stable, this does not indicate low seismic hazard. Instead, it may suggest ongoing strain accumulation within a seismic gap that could generate a future major earthquake. Overall, these findings enhance understanding of southern Java’s subduction dynamics and support improved earthquake hazard assessment and disaster preparedness.
Co-Authors -, Renanto Adi Susilo Adrial, Rico Afdal, Afdal Afdhal Muttaqin Afdhal Muttaqin Afrizal Afrizal Ahmad Fauzi Pohan Ahmad Rizqy Shubri Ahmad Zul Amal Zaini Alimin Mahyudin Andeskob Topan Indra Ardian Putra Arif Budiman Arif Budiman Arif Ismul Hadi Astuti - Aulya Rahayu Aulya Rahayu Aulya Rahayu, Aulya Awaluddin Awaluddin Ayu Putri Ningsih Ayu Putri Ningsih Bella Deswanti Bunga Aprilia Dahyunir Dahlan Dea Kurnia Harysandi Dea Kurnia Harysandi Deasy Arisa Deasy Arisa Dedi Mardiansyah Dian Fitriyani Dian Milvita Dinda Maulani Adfy Dwi Pujiastuti Dwi Puryanti Dwianda, Rany Audia Eko Priyanda Elfira Saufina Elfira Saufina Elistia Liza Namigo, Elistia Elvaswer Elvaswer Fadilla Monica Fadilla Monica Fadli Nauval Fani Anjelina Faridah Salma Feri Helmi Basri Feriska Handayani Irka, Feriska Handayani Fery Kurnia Sandi Geby Sri Ayu Oktavia Gina Felita Harmadi Harmadi Harysandi, Dea Kurnia Helmi Yusnaini Helmi Yusnaini Helmi Yusnaini Helmi Yusnaini Hiroyuki Hashiguchi Hiroyuki Hashiguchi Hiroyuki Hashiguchi Hiroyuki Hashiguchi Hiroyuki Hashiguchi Hiroyuki Hashiguchi Hiroyuki Hashiguchi Hiroyuki Hashiguchi Hiroyuki Hashiguchi Hiroyuki Hashiguchi, Hiroyuki Ikhwan Fikri Maulidan Imam Taufik Imam Taufiq Imam Taufiq Indah Rahayu Iqbal Ramadhan Irza Utami L. Luini Lismalini Lismalini Lismalini, Lismalini Lisna Meylani Lusi Fitrian Sani Lusi Fitrian Sani Lusi Fitrian Sani, Lusi Fitrian M. Ali Shafii Melly Angglena Meqorry Yusfi Meri Yoseva Mohammad Ali Shafii Mora Mora Mora Mora Mora Muchtia Rahma Muchtia Rahma, Muchtia Muhammad Arif Muhammad Kahfi Muharsyah, Robi Muldarisnur, Mulda Mutya Vonnisa Mutya Vonnisa Muzirwan Muzirwan Naela Amalia Zulfa Nauval, Fadli Nina Nina Nini Firmawati Nor Azlan Mohd Aris Novianti Indrastuti Nugroho, Susilo Nur Fadillah Nurdin Nurdin Nurdin Nurdin Nurul Annisa Nurul Hasanah Poltak Sandro Rumahorbo Poltak Sandro Rumahorbo, Poltak Sandro Puja Kasmailen Putri Rahmad Rasyid Rahmad Rasyid Rahmat Rasyid Ramacos Fardela Ramadani Safitri Ramadani Safitri Ramadani Safitri Ramadhan, Ravidho Rani Delvihardini Rany Audia Dwianda Ravidho Ramadhan Ravidho Ramadhan Ravidho Ramadhan Ravidho Ramadhan Ravidho Ramadhan Ravidho Ramadhan Ridwan Ridwan Rifa Lihayati Riki Rahman Rini Oktaviani Rio Chandra Rio Chandra, Rio Robi Muharsyah Salma, Faridah Selly Tridaiana Shimomai, Toyoshi Sholihun, Sholihun Silvia Wahyuni Sri Hamdiyessi Sri Handani Sri Herlinda Sri Mai Dewi Sri Oktamuliani Sri Wahyuni Sri Wahyuni Sucy Lestari Wirma Sugeng Nugroho Suryanti, Krisna Suryanto, Wiwit Syafira Salsabila Syarifatul Ulfah Toyoshi Shimomai Toyoshi Shimomai Toyoshi Shimomai Toyoshi Shimomai Toyoshi Shimomai Toyoshi Shimomai Trengginas Eka Putra Sutantyo Trengginas Eka Putra Sutantyo Trengginas Eka Putra Sutantyo Triana Vitri Triana Vitri, Triana Ulfa Azmi Usna, Sri Rahayu Alfitri Vira Friska Vira Friska Vira Friska Vira Friska Vira Friska Wendi Harjupa Wildian Wildian Wira Indrayani Yudi Saputra Zul Ikram Zulfi Zulfi Zulfi Zulfi Zulfi