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All Journal Jurnal Keteknikan Pertanian Tropis dan Biosistem Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Aceh International Journal of Science and Technology Rona Teknik Pertanian KOPEMAS
Ichwana Ramli
Universitas Syiah Kuala
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Mechanical Engineering Social Sciences

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Kajian Tingkat Bahaya Erosi dan Kekritisan Pada DAS Krueng Raya, Provinsi Aceh Menggunakan Sistem Informasi Geografis Fachruddin Fachruddin; Sudirman Sirait; Alimuddin Alimuddin; Ichwana Ramli
Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol 9, No 2 (2021)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jkptb.2021.009.02.06

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui tingkat bahaya erosi dan kekritisan DAS Krueng Raya menggunakan aplikasi Sistem Informasi Geografis (SIG). Pengukuran tingkat bahaya erosi menggunakan metode universal soil loss equation (USLE), sedangkan pengukuran lahan kritis menggunakan Panduan Peraturan Menteri Kehutanan No. 32. Selanjutnya, integrasi beberapa parameter dapat dilakukan dengan tool overlay dengan menggunakan aplikasi Sistem Informasi Geografis (SIG). Hasil penelitian menunjukan bahwa kelas Tingkat Bahaya Erosi (TBE) di DAS Krueng Raya yang paling luas adalah kelas agak kritis dengan luas mencapai 9 319.4 ha atau 73.25%. Selanjutnya, kelas kritis dengan luas 1 361.80 ha atau 10.70%, berikutnya kelas sangat kritis 340.4 ha atau 2.68% dan kelas tidak kritis 879.7 ha atau 6.91%. Sedangkan klasifikasi tingkat kekritisan DAS yang paling luas termasuk tingkat agak kritis dengan luas mencapai 9 319.4 Ha atau 73.25%, selanjutnya kelas kritis dengan luas 1 361.80 ha atau 10.70%. Selanjutnya, kelas sangat kritis 340.4 ha atau 2.68% dan kelas tidak kritis dengan luas 879.7 ha atau 6.91%. Bila tingkat bahaya erosi berat/tinggi maka pengaruhnya terhadap kelas lahan kritis akan tinggi (kritis, agak kritis dan sangat kritis) dengan persentase luas secara keseluruhan mencapai 98.7%. Sebaliknya, jika tingkat bahaya erosi berada pada kelas ringan maka kelas lahan kritis secara umum akan berada kelas rendah atau pada kelas tidak kritis (79.4%) atau agak kritis (19.3%). Arahan pengelolaan DAS Krueng Raya harus menerapkan konservasi tanah dan air secara berkelanjutan/terpadu pada setiap kawasan.
A study of urban heat island of Banda Aceh City, Indonesia based on land use/cover changes and land surface temperature Ashfa Achmad; Laina Hilma Sari; Ichwana Ramli
Aceh International Journal of Science and Technology Vol 8, No 1 (2019): April 2019
Publisher : Graduate Program of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1782.72 KB) | DOI: 10.24815/jts.v%vi%i.13060

Abstract

This article described the spatial and temporal of land surface temperature (LST) patterns in Banda Aceh City, Indonesia, in the context of urban heat island (UHI) phenomenon. Landsat imaginary in 1998 and 2018 was used in this study, which represents the conditions before and after the tsunami. Geographic Information System (GIS) and Remote Sensing (RS) technique were used for data analysis. The 1998 and 2018 LUC maps were derived from remote sensing satellite images using a supervised classification method (maximum likelihood). Both LUC maps contained five categories, namely built-up area, vegetation, water body, vacant land, and wet land. The 1998 LUC map had a kappa coefficient 0.91, while the 2018 LUC map had 0.84. It was found that the built-up area increased by 100%, while the vegetation category fell 50%. The overall mean LST in the study area increased 5.90C between 1998 and 2018, with the highest mean increase in the built-up area category. The study recommends that LST should be taken into consideration in urban planning process to realize sustainable urban development. It also emphasizes the importance of optimizing the availability of green open space to reduce UHI effects and helps in improving the quality of the urban environment. 
PREDIKSI CEPAT KUALITAS AIR MENGGUNAKAN LPAS (LASER PHOTO-ACOUSTIC SPECTROSCOPY) DENGAN MENERAPKAN METODE KOREKSI CUTTING EDGE FILTERING Ichwana Ramli; Agus arip Munawar; Khairul Abdi Ruslana
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 2 (2021): Juni
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i2.220-227

Abstract

A tool that can predict water quality by capturing sound vibrations generated by collisions between water samples and light is LPAS (Laser Photo-Acoustic Spectroscopy). To process the data acquired by LPAS, spectrum correction is needed to eliminate data errors when making acquisitions on water samples. The correction method used in this research is the cutting edge filtering correction method. The regression model that can be used is the PLSR (Partial Least Square Regression) regression model. This research was conducted in the Instrumentation and Energy Laboratory, Agricultural Engineering Study Program, Faculty of Agriculture, Syiah Kuala University. Water sample analysis was carried out at the Laboratory of the Industrial Research and Standardization Center (BARISTAND) Banda Aceh. This study used 4 monitoring wells within the TPA (Final Disposal Site) and 4 samples were taken from community wells outside the scope of TPA Gampong Jawa, Banda Aceh City. The results of this study indicate the parameters (temperature, turbidity, Ph, TSS, DO, BOD and Nitrate) are predicted to be in the frequency range 4000 - 10,000 cm-1. Raw spectrum data for pH and Nitrate (NO3-) parameters produce better data than the spectrum data for cutting edge filtering correction methods while cutting edge filtering spectrum data for temperature, turbidity, TSS, DO and BOD-5 parameters are better than spectrum raw data. This study also shows that the cutting edge filtering correction method is able to cut boundaries and compress the spectrum so that it can provide data limits on the spectrum so that the PLSR method can be applied to predict water quality. Keywords: water quality; Laser Photo-Acoustic Spectroscopy, correction method, regression method
Nilai Erosi dengan Metode Rusle dari Pemanfaatan Citra Sentinel-2 di Wilayah Sungai Pasee Peusangan Firman Hadi; Tito Eka Syafjanuar; Nasrul Arrahman; Ichwana Ramli
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 11 No 2 (2023): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jrpb.v11i2.523

Abstract

Erosion of watercourses is a natural process related to the environment which has an adverse impact on the environment, through the organic, physical and chemical properties of the soil. This causes a decrease in soil productivity, pollutes rivers and fills water reservoirs. Erosion estimates were calculated using the Revised Universal Soil Loss Equation (RUSLE) with GIS to achieve the research objective. Calculations with the RUSLE method are carried out with the assumption that soil erosion occurs by 5 main factors, namely rain erosion (R), soil physical properties (K), land use status (C), erosion control area (P) and topography (LS). The RUSLE equation can also be used to calculate sediment. This study uses remote sensing imagery from Sentinel-2 MSI. In this research, to improve the geolocation accuracy of geometric correction and atmospheric correction using the Sentinel Application Platform, namely SNAP (Sentinel Application Platform). The results showed that most of the Pasee-Peusangan area was indicated as an area with low erosion, most of this area was in the north. While for the location to the south, there are different values indicating erosion, where the value is getting higher. Area Indications of moderate and high erosion in the Pasee-Peusangan is to the south, where this area has a mountainous topography with alluvial soil types, so the potential for erosion in this area is high. The highest erosion areas are scattered which are dominated in the several areas of the Peusangan highlands. Meanwhile for the Pasee, the highest erosion occurred in the transition and downstream (coastal) areas. Land management needs to be considered to be able to determine the causes of these differences.
Pengukuran Suhu Permukaan Menggunakan Pancaran Spektral dari Citra Satelit: Studi Kasus di Banda Aceh Putra Arafat Taqwallah; Ichwana Ramli; Alia Rizkia
Rona Teknik Pertanian Vol 14, No 2 (2021): Volume 14, No.2, Oktober 2021
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v14i2.22028

Abstract

Abstrak. Tingginya tingkat urbanisasi menyebabkan meluasnya wilayah perkotaan dan menciptakan daerah keras yang mengakibatkan suhu tinggi di wilayah perkotaan, termasuk Banda Aceh. Permasalahan ini tentu menimbulkan ketidaknyamanan bagi masyarakat Banda Aceh. Beberapa penelitian melaporkan bahwa suhu udara yang terlalu tinggi dapat menyebabkan masalah kesehatan yang serius di masyarakat. Suhu permukaan Banda Aceh diukur menggunakan Spectral Radiance dari Satellite Imager, kemudian dibandingkan dengan data yang diukur langsung di lokasi penelitian. Hasil menunjukkan suhu udara di Banda Aceh berkisar antara 22,32°C hingga 34,86°C.  Selain itu, terjadi korelasi antara penggunaan ruang dengan tingkat suhu udara Banda Aceh berdasarkan parameter hard area dan vegetasi. Namun, hanya variabel jarak dengan badan air yang memiliki korelasi signifikan terhadap perubahan tingkat suhu.Surface Temperature Distribution Using Spectral Radiance from Satellite Imagery: A Case Study in Banda AcehAbstract. The high rate of urbanization will have an effect on land change. The increasing number of buildings and lack of green open space will hinder the direction of wind speed, cause inconvenience to the public. The purpose of this study was to determine the distribution of surface temperature in the city of Banda Aceh based on the spectral emission of Landsat images from vegetation density, distance from the river, and built-up area. The air temperature data were obtained using the classification method from the digital number value of the Landsat image to the spectral radiance and then converted into air temperature. The density of the built-up area was analyzed from the Normalized Difference Vegetation Index (NDBI) and the density of the vegetation was analyzed from the Normalized Difference Vegetation Index (NDVI). The air temperature distribution map from the image is divided into 3 zones that are densely populated (built-up area), vegetation and distance to water bodies to be measured directly in the field. The air temperature from the lansat 8 images ranged from 22.32°C to 34.86°C. The zone with a distance of 3,457 km from a water body, with less vegetation density (0) and a built-up area of 0.16-0.23 has a temperature of 31.96oC -32.45oC, while the zone with a water body distance of 1,255 km with a built-up area below zero and vegetation has a temperature of 25.82oC-27.09oC. Based on the parameters of space use (vegetation and built-up area) and the distance between the zone and the water body, it has an influence on the distribution of air temperature in the city of Banda Aceh.
RANCANG BANGUN DAN PENGUJIAN ALAT HOT PRESS PELEPAH PINANG SEBAGAI KEMASAN DI DESA LAMTAMOT ACEH BESAR Ichwana Ramli; Syafriandi Syafriandi; Ratna Ratna; Ashfa Achmad
Konferensi Nasional Pengabdian Masyarakat (KOPEMAS) #5 2024 Konferensi Nasional Pengabdian Masyarakat (KOPEMAS) 2022
Publisher : Konferensi Nasional Pengabdian Masyarakat (KOPEMAS) #5 2024

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

Abstract

Belakangan ini penggunaan kemasan plastik memiliki dampak nyata terhadap lingkungan dan kesehatan. Masalah yang sering muncul pada penggunaan kemasan plastik dan stryrofoam yaitu sulitnya sampah plastik itu sendiri terurai. Kemasan plastik yang tidak terpakai hanya dapat terurai setelah 1000 tahun. Oleh karena itu, pengabdian tentang bahan kemasan yang dapat terdegradasi saat ini sangat diperlukan dan dikembangkan. Salah satu jenis kemasan adalah pelepah pinang menjadi produk industri kreatif yang dapat menjadi solusi ramah lingkungan dibandingkan kemasan sintetis. Lamtamot merupakan salah satu gampong yang ada di Mukim Gunung Birang, kecamatan Lembah Seulawah, Kabupaten Aceh Besar, Provinsi Aceh. Mayoritas masyarakat desa ini memiliki lahan yang luas dan ditanami pohon pinang. Limbah dari pohon pinang hanya dibiarkan begitu saja dan tidak dimanfaatkan, ditumpuk atau dibakar oleh masyarakat. Oleh karena itu, pengabdian ini bertujuan untuk mengedukasi masyarakat dan menciptakan produk kemasan kopi dari limbah pelepah pinang yang dihasilkan dari alat hot press yang didesain oleh tim pengabdian. Pemanasan awal alat hot press untuk mencetak pelepah pinang 20-35 menit. Sedangkan waktu pemanasan pelepah pinang yang memiliki ketebalan 3-6 mm menjadi produk kemasan berkisar 1-2 menit. Produk yang dihasilkan telah menjadi sumber ekonomi dan dipasarkan melalui akun shopee dan Instagram.
Impact of Pyrolysis Temperature and Jatropha Seed Adhesive on the Properties of Bio-charcoal from Young Coconut Waste Khairul Anwar; Mahidin Mahidin; Ichwana Ramli; Muhammad Faisal; Agustami Sitorus
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 4 (2024): December 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i4.1372-1382

Abstract

This study assesses the characteristics of bio-charcoal from young coconut waste with the effect of variations in pyrolysis temperature and the addition of Jatropha seed adhesive. The physical and chemical parameters of bio- charcoal from three temperature variation treatments (380°C, 430°C, and 480°C) and three adhesive concentrations (15%, 20%, and 25%) were analyzed, including moisture content, ash content, volatile matter, calorific value and fixed carbon. In addition, the application of ANOVA and DMRT were used to evaluate the significant differences between the various treatments with significant p-value ≤ 5%. The optimal result was obtained at temperature of 430°C and 25% adhesive indicating a calorific value of 6421 cal/g, moisture content of 6.1%, ash content of 7.6% volatile matter of 7.7% and fixed carbon of 78.7%. The findings reveal that adhesive content significantly affects bio-charcoal quality, while temperature variations influence moisture content and heating value. This study concludes that optimizing temperature and adhesive concentrations can yield high-quality bio-charcoal, offering a cleaner, sustainable source. Keywords: Adhesive, DMRT, Jatropha curcas, Pyrolysis, Young coconut waste.
Co-Authors Agus Arip Munawar Agustami Sitorus Alia Rizkia Alimuddin Alimuddin Ashfa Achmad Fachruddin Fachruddin Firman Hadi Khairul Abdi Ruslana Khairul Anwar Laina Hilma Sari Mahidin Mahidin Muhammad Faisal Nasrul Arrahman Putra Arafat Taqwallah Ratna Ratna Sudirman Sirait Syafriandi Syafriandi Tito Eka Syafjanuar