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All Journal Pendidikan Bahasa dan Sastra Indonesia Jurnal Fisika Unand
Safitri, Ramadani
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Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics

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KETERAMPILAN MENULIS TEKS CERPEN MENGGUNAKAN TEKNIK COPY THE MASTER DAN TEKNIK MIND MAPPING SISWA KELAS XI SMA NEGERI 2 PADANG PANJANG Safitri, Ramadani; Zulfikarni, Zulfikarni
Jurnal Pendidikan Bahasa dan Sastra Indonesia Vol 8 No 3 (2019)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (412.845 KB) | DOI: 10.24036/108219-019883

Abstract

ABSTRACT This study aims to describe students short story writing skills using the master copy technique and mind mapping techniques. This type of research is quantitative with analytical descriptive method. Research sampling is done by purposive sampling technique. The instrument used to collect data in this study is the performance test, which is writing short story texts. The research data ini the form of short story writing skills using the master copy technique and mind mapping technique. The research data collection technique is by analyzing students short story writing skills by apllying the master copy technique and mind mapping technique. Indicators used to assess short story writing skills, namely structure, instrinsic elements, and linguistic elements. Based on the result of the study, it can be concluded that. First, short story writing skills using the master copy the technique of the eleventh grade students of Padang Panjang public high school 2 are in good qualification because the average value of short story text writing skills using the master copy technique is 82.07. Second, short story writing skills using mind mapping techniques of the eleventh grade students of Padang Panjang 2 high school are in excellent qualifications because the average value of short story writing skills using mind mapping technique is 88.26. Third, based on the calculated average values for the two texts, there is a significant different between the short story writing skills using the master copy technique of the eleventh grade students of Padang Panjang 2 high school.Kata kunci : keterampilan menulis, teks cerpen, copy the master, mind mapping
Analisis Dampak Perubahan Tutupan Lahan di Kalimantan Terhadap Temperatur Permukaan Safitri, Ramadani; Vonnisa, Mutya; Marzuki, Marzuki
Jurnal Fisika Unand Vol 11 No 2 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.11.2.173-179.2022

Abstract

Penelitian ini membahas tentang perubahan tutupan lahan di Kalimantan terhadap temperatur permukaan. Identifikasi perubahan tutupan lahan dilakukan dengan metode analisa data satelit landsat pada setiap kelas tutupan lahan  yang bertujun untuk melihat kenaikan suhu permukaan. Klasifikasi tutupan lahan dan suhu permukaan didapatkan dari data landsat 5 dan 8 yang diolah dengan menggunakan ENVI 5.3 dan Arcgis 10.6 1. Klasifikasi tutupan lahan dibagi atas 3 kelas secara garis besar yaitu lahan terbangun, badan air, dan lahan non terbangun. Penelitian ini menemukan bahwa suhu permukaan pada setiap kelas tutupan lahan berbeda-beda. Perubahan pada tahun 1999 ke 2014 sebesar 7 % pada wilayah Kalimatan Timur, Kalimantan Selatan dan Kalimantan Barat. Hasil yang didapatkan menunjukkan perubahan tutupan lahan berbanding lurus dengan temperatur permukaan
Land Cover Change in Riau Province and Its Implications for Carbon Stock and CO₂ Emissions Safitri, Ramadani; Marzuki, Marzuki; Priyanda, Eko; Salsabila, Syafira; Ridwan, Ridwan; Rahman, Riki
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.
Co-Authors Marzuki Marzuki Mutya Vonnisa Priyanda, Eko Ridwan, Ridwan Riki Rahman Salsabila, Syafira Zulfikarni Zulfikarni