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All Journal Krisna: Kumpulan Riset Akuntansi AGRIPEAT Agrienvi : Jurnal Ilmu Pertanian Jurnal Hutan Tropika Jurnal Pengabdian Kepada Masyarakat Ungu ( Abdi Ke Ungu) Formosa Journal of Applied Sciences (FJAS) Acitya Wisesa: Journal of Multidisciplinary Research Innovative: Journal Of Social Science Research Indonesian Journal of Statistics and Its Applications
Vera Amelia
Fakultas Farmasi Universitas Hasanuddin
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Karakteristik Sifat Fisik Dan Kimia Tanah Pada Kawasan Pasca Tambang Bauksit Di Kabupaten Kotawaringin Timur Provinsi Kalimantan Tengah Budi Gunawan, Agus; Amelia, Vera; Widiastuti, Lusia; Darung, Untung; Damanik, Zafrullah; Sinaga, Soaloon
Innovative: Journal Of Social Science Research Vol. 3 No. 5 (2023): Innovative: Journal of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

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Abstract

Penelitian ini bertujuan menganalisis sifat fisik dan kimia tanah menurut umur reklamasi dan rona awal lingkungan pada lokasi penelitian yaitu lokasi bekas penambangan bauksit dalam wilayah izin usaha pertambangan PT. Citra Mentaya Mandiri dan PT. Duta Borneo Pratama. Hasil analisa laboratorium terhadap sampel tanah pada 5 (lima) lokasi dengan ketebalan 0-20 cm yakni rona awal, lokasi belum reklamasi, reklamasi 1 tahun, reklamasi 2 tahun, dan reklamasi 5 tahun. Analisis data menggunakan uji sidik ragam dan uji lanjutan BNT (Beda Nyata Terkecil). Hasil penelitian ditemukan perbedaan sifat fisik dan kimia tanah menurut umur reklamasi dan rona awal lingkungan, namun tidak berbeda nyata terhadap kapasitas tukar kation pada lokasi tersebut. Kondisi sifat fisik tanah ditemukan pencampuran antara lapisan tanah atas dengan lapisan tanah bagian bawah akibat penambangan dan penimbunan tanah. Tekstur tanah berupa liat berdebu - lempung berpasir. Struktur tanah berupa gumpal bersudut - gumpal membulat dengan ukuran pasir berdebu dan tingkat perkembangan sukar hancur - mudah hancur. Penurunan bobot isi tanah akibat presentase fraksi, penambahan bahan organik, vegetasi, dan aktivitas fauna yang berbeda. Kondisi sifat kimia tanah yaitu pH tanah tergolong asam berkisar antara 3,71 – 4,91. Penurunan kandungan N-total, P-total, C-organik mengalami penurunan disebabkan karena pH tanah yang asam, kurangnya vegetasi dan bahan organik. Perbedaan nilai Kalium dan Kejenuhan Basa disebabkan jumlah kandungan unsur hara dipengaruhi oleh serapan unsur hara, pencucian, jenis pupuk dan jumlah pupuk yang diberikan. Kapasitas tukar kation bervariasi nilainya tetapi tidak berbeda nyata, diduga karena kekurangan bahan organik pada lokasi reklamasi. Rekomendasi dalam pengelolaan tanah antara lain penambahan bahan organik, vegetasi dan unsur hara agar terjadi proses humifikasi dan dekomposisi tanah dapat meningkat.
Pengaruh Penggunaan Abu Kayu Sebagai Material Penutup TPA Terhadap Kosentrasi TSS, TDS dan Pb dalam Air Lindi Sampah Aritonang, Bonardo Agustinus; Amelia, Vera; Widiastuti, Lusia
Innovative: Journal Of Social Science Research Vol. 4 No. 6 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v4i6.16845

Abstract

Law Number 18 of 2008 concerning Waste Management requires the closure of landfills with an open dumping system and replacing them with a sanitary landfill system, thus requiring a fairly large landfill cover layer. On the other hand, the amount of wood ashes produced in Indonesia is very abundant and has been widely used as an adsorbent and pozzolan material. Wood ashes has the potential to be used as a landfill cover material based on sanitary landfills, especially daily cover and intermediate cover. This research has purpose to analyze the differences in surface area and silica content contained in laterite soil and wood ashes, analyze differences in the volume of leachate produced from the use of wood ashes and laterite soil as a landfill cover layer, analyze the effect and whether the use of wood ashes as a cover layer material TPA produces better quality TSS (total suspended solid), TDS (total dissolved solid), and Pb (lead) than using laterite soil. This research was carried out by using 3 lysimeters, that is a lysimeter without a covered layer, a lysimeter with a laterite covered layer, and a lysimeter with a wood ash covered layer. The results of the research show that the surface area of wood ashes and laterite soil has a similar surface area, but the Si content in wood ashes is higher than in laterite soil. The lysimeter with a covering layer of wood ash produces a smaller volume of leachate than the volume of leachate from other lysimeter variants, lysimeters with wood ashes cover layers have a negative effect on TDS concentrations so they will produce higher TDS concentrations compared to lysimeters that use laterite soil cover layers and have a positive effect on TSS and Pb concentrations so they will produce TSS concentrations and lower Pb compared to lysimeters that use a laterite soil cover layer. Lysimeter with a laterite cover layer have a negative effect on the TSS concentration of leachate so that they will produce a higher TSS concentration compared to the TSS cocentration of leachate from lysimeter without a cover layer and lysimeter with a wood ash cover layer.
Pemetaan Lahan Kritis untuk Menentukan Daya Dukung Lingkungan di Kecamatan Bukit Batu Kota Palangka Raya Silvika, Okta; Sukarna, Raden Mas; Amelia, Vera
Innovative: Journal Of Social Science Research Vol. 5 No. 1 (2025): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v5i1.18120

Abstract

Penelitian ini bertujuan untuk melakukan analisis spasial guna menentukan sebaran lahan kritis dan daya dukung lingkungan di Kecamatan Bukit Batu, Kota Palangka Raya. Lahan kritis memiliki fungsi yang kurang baik sebagai media produksi untuk pertumbuhan tanaman. Data yang digunakan meliputi peta curah hujan, tutupan lahan, erosi, fungsi kawasan, kemiringan, dan jenis tanah, yang kemudian diolah menggunakan aplikasi ArcGIS 10.3. Analisis menunjukkan bahwa Kecamatan Bukit Batu Kota Palangka Raya memiliki 5 Kelas Sebaran lahan kritis yaitu tidak kritis, potensial kritis, agak kritis, kritis, dan sangat kritis. Lahan potensial kritis terluas 58,88% atau 35.512,94 Ha dari luasan Kecamatan Bukit Batu dan luasan terkecil lahan sangat kritis luas 22,22 Ha (0,04%). Semakin tinggi nilai faktor tersebut maka semakin tinggi tingkat kekritisan lahan. Daya dukung lingkungan sedang persentase tertinggi 58,88% luasan 35512,94 Ha dengan nilai keanekaragaman jenis sedang H’ 2,38. Daya dukung tinggi hanya 36,74% luas 2644,38 Ha nilai H’3 dan terkecil Daya dukung lingkungan rendah 4,38% luas 2644,38 Ha nilai H’0,95.
Pengaruh Variasi Volume Media Filtrasi terhadap Efektivitas Pasir Malang dalam Menurunkan Kadar Besi (Fe) di Air Tanah Desa Bajarum Maradona, Maradona; Amelia, Vera; Adji, Fengky F.
Innovative: Journal Of Social Science Research Vol. 5 No. 2 (2025): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v5i2.18673

Abstract

The well water in Bajarum Village contains high levels of dissolved iron (Fe), requiring filtration using Malang Sand. This study aims to analyze the effectiveness of Malang Sand in reducing Fe levels with varying filter media volumes. An experimental method was employed using two filtration systems that combined aeration and filtration techniques. Groundwater samples were collected from several wells and tested for Fe levels before and after filtration. The results showed that the filter with 50% Malang Sand reduced Fe by an average of 11.7 mg/L (73.87%), while the filter with 100% Malang Sand reduced Fe by an average of 15.69 mg/L (91.16%). Statistical analysis confirmed a significant reduction in Fe levels after filtration (p<0.05); however, no significant difference was found between the 50% and 100% media volumes (p>0.05). In conclusion, Malang Sand filtration effectively reduces Fe levels, but increasing the media volume does not result in a significant difference.
The Influence of the APBDes on Road Construction in Gantarang Village, Sinjai District Saputra, Ilham; Sandung, Cindy Lestari; Arisyanti. B, Irnadila; Amelia, Vera; Sadriani, Andi
Formosa Journal of Applied Sciences Vol. 3 No. 3 (2024): March 2024
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjas.v3i3.8554

Abstract

The Territorial Income and Consumption Budget (APBD) could be a territorial government income and consumption arrange for one budget year which is implemented by territorial controls. Gantarang Town may be a town coming about from extension in agreement with article 7 of the Sinjai Rule Territorial Control Number 17 of 2005. In article 3 passage 4, the APBD too has the capacities of authorization, arranging, supervision, allotment, conveyance and stabilization. In this way, Gantarang Town itself has experienced very fast improvement over time, particularly in street advancements to back the exercises of its inhabitants.
Identification of Prospective Subindustries Ahead of the 2024 Simultaneous General Elections with K-Medoids Clustering: Identifikasi Subindustri Prospektif Menjelang Pemilihan Umum Serentak 2024 dengan K-Medoids Clustering Amelia, Vera; Silvianti, Pika; Rahman, La Ode Abdul
Indonesian Journal of Statistics and Applications Vol 7 No 2 (2023)
Publisher : Statistics and Data Science Program Study, IPB University, IPB University, in collaboration with the Forum Pendidikan Tinggi Statistika Indonesia (FORSTAT) and the Ikatan Statistisi Indonesia (ISI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/ijsa.v7i2p64-74

Abstract

Indonesia Stock Exchange (IDX) Composite has grown in each general election year since 1998. This indicates that certain subindustries have benefited positively from the election year momentum. However, analyzing each subindustry was less efficient. This study aimed to identify prospective subindustries leading up to the 2024 Simultaneous Election based on the results of K-Medoids clustering on data from the lead-up to the 2019 Simultaneous Election. Research variables covered long-term price rate of change (indicating trends) and volatility (depicting fluctuations). These were derived from transforming historical stock price data for each issuer on a weekly basis in the two years before the 2019 Simultaneous Election. Four clusters emerged: high positive, low positive, high negative, and low negative. Positivity/negativity signify trends and high/low represent fluctuations. High fluctuations indicate higher risks. Prospective subindustries for the 2024 Simultaneous Election with low risk include household furniture manufacturers, basic chemical producers, construction materials, packaging, tires, household goods retail, life insurance, consumer finance, and financial holding companies. On the other hand, sub-industries with high risks for the 2024 Simultaneous Election include aluminum, paper, and textiles.
Co-Authors Abdul Hamid, Syahrudin Abdul Syahid Abdullah Abdullah Adji, Fengky F. Adji, Fengky Florante Ambar Wati, Desti Arisyanti. B, Irnadila Aritonang, Bonardo Agustinus Arsyanti, Eka Ayu Lestari, Lara Barbara, Betrixia Budi Gunawan, Agus Damanik, Zafrullah Dian Khairani, Masayu Galih Prasetyo, Fitra Hutahaean, Sri Devi Indira, Maulida Ishak, Jouzar Farouq Kamala, Penny Kulu, Ici Piter La Ode Abdul Rahman Ludang, Yetrie Maradona, Maradona Mayesti Akhriani, Mayesti Melhanah Melhanah, Melhanah Misrita, Misrita Moch. Anwar Nomeritae, Nomeritae Nurhayati, Aftulesi Pika Silvianti Raden Mas Sukarna, Raden Mas Redin, Herry Sadriani, Andi Sandung, Cindy Lestari Saputra, Ilham Silvika, Okta Sirenden, Ruben Tinting Siti Zubaidah Soaloon Sinaga Sri Agustini Sukarna, R. M. Sulistiyanto, Yustinus Surawijaya, Panji Susi, Theresia Syarifah, Siti Tinting Sirenden, Ruben ulya fahira, arum nisa undut, Saurdot Pakpahan Untung Darung Vetrani Asie , Kambang Widiastuti, Lusia Yusuf, Noor Syarifuddin Zulianto, Iwan