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All Journal Teras Jurnal Jurnal Rekayasa Sipil Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil
Alia, Febrinasti
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Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Transportation

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Impact of Land Use and Land Use Change on Greenhouse Gas Emissions in Palembang City: Dampak Penggunaan Lahan dan Perubahan Tata Guna Lahan terhadap Emisi Gas Rumah Kaca di Kota Palembang Alia, Febrinasti; Hadinata, Febrian; Trimahmudi, Arief; Apriani, Nyimas Ida
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 13 No. 2 (2024): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v13i2.338

Abstract

Climate change is mainly anthropogenic mostly caused by urbanization, human activities in economics, industry, and transportation. The expansion of built-up land, deforestation and the loss of farmland are closely linked to land use and land use change. Greenhouse gas emissions produced by the land use sector can significantly affect global carbon budgets by changing the carbon storage level in terrestrial ecosystem vegetation and soil. In 2005, Indonesia was responsible for approximately 85% of carbon emissions. The Indonesian government is combating environmental issues by mandating local governments, including Palembang City, to conduct greenhouse gas inventories. Changes in land use and the amount of carbon stock in Palembang City can be taken into consideration by the Palembang City Government in dealing with climate change. Data analysis was carried out by interpreting satellite imagery SPOT-7 and classification of land use data into six classes based on AFOLU guidelines. The area derived from land use transition matrix of the period 2012-2018 is used as a basis to calculate greenhouse gas emissions. The greenhouse gas emissions were then calculated using the Gain-Loss method based on the IPCC journal as a reference. Due to land use and land use change from 2012 to 2018, Palembang City emits greenhouse gas as much as -149098.5827 Tonnes C/Year in total. Forest Land Category -26557.22425 Tonnes C/Year, Crop Land Category -112739.8894 Tonnes C/Year, Grass Land Category -32257.56413 Tonnes C/Year, Wetland Category -20721.68315 Tonnes C/Year, Settlement Category 43273.249 Tonnes C/Year and Other Land Category -95.4708 Tonnes C/Year. Inventories on greenhouse gas (GHG) emissions and absorption trends are crucial for climate change mitigation strategies in Palembang. One important strategy towards achieving net zero emissions by 2060, as initiated by the Government of Indonesia, is to curb carbon release associated with land use changes.
Simulasi Pengendalian Limpasan Permukaan dengan Penerapan Low-Impact Development di Kawasan Perumahan: Simulation of Surface Runoff Control with Low-Impact Development Implementation in Residential Area Yuono, Agus Lestari; Iryani, Sakura Yulia; Alia, Febrinasti; Al Amin, Muhammad Baitullah
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 13 No. 2 (2024): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v13i2.400

Abstract

Applying the Low-Impact Development (LID) approach in urban drainage systems can help control surface runoff, therefore mitigating the potential of flooding risk. However, its effectiveness varies widely, and various technical factors influence its performance. This study aims to determine the effectiveness and performance of LID units, namely bioretention and infiltration wells, in controlling surface runoff. The Center Park Housing area, covering an area of ​​11.53 hectares located in Palembang City, was chosen as the study area. The ability of the LID unit to reduce the volume and discharge of runoff, as well as the runoff coefficient, was simulated using the Storm Water Management Model (SWMM) program based on input from various design rainfall cases. There were four simulated design rainfalls, i.e. 108.76 mm (2-year return period), 133.20 mm (5-year), 149.38 mm (10-year), and 169.82 mm (25-year). The LID unit implementation scenarios were varied with the number of infiltration well units of 1 - 4 units per house plot. The number and area of ​​bioretention units were considered constant for all scenarios. The simulation results show that the LID implementation can reduce runoff volume and peak discharge and help decrease the runoff coefficient in the study area effectively, especially in the case of lower design rainfall (2-year). The performance of the infiltration wells unit in producing runoff losses is better than the bioretention unit because its construction structure has a larger storage capacity for a similar unit area. Although the LID method is quite effective in reducing runoff, its combination with conventional methods may produce better performance, so further research that discusses this needs to be addressed.
Tinjauan Kapasitas Sistem Drainase di Perumahan Center Park Palembang Menggunakan PCSWMM Al Amin, M. Baitullah; Haki, Helmi; Alia, Febrinasti
Jurnal Rekayasa Sipil (JRS-Unand) Vol. 18 No. 3 (2022)
Publisher : Civil Engineering Departement, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrs.18.3.178-193.2022

Abstract

This research focuses on reviewing the drainage system's capacity in Alang-Alang Lebar Center Park Residential Area, Palembang City. Several spots in this area are frequently flooded, especially during heavy rainfall. Field surveys were conducted to acquire the required data, such as topographic maps, aerial photographs, dimensions, and elevations of drainage channels. This research uses the maximum daily rainfall data recorded at the Sultan Mahmud Badaruddin II Airport station for 25 years (1996 – 2020). The return periods used to determine the magnitude of 3 hours-design rainfall are 2 and 5 years. The hydrodynamic simulation of the drainage system was carried out with an integrated 1D-2D model using PCSWMM 2021 Professional 2D version 7.4. The simulation results show flooding occurred in the Willow, Cassia, Bougenville, and Amaryllis blocks. The most significant overflow occurred in the Willow block, causing flood inundation with a maximum height of 0.1 m. Recommendations for increasing the capacity of the drainage system to prevent flood overflows are by enlarging several secondary channels and adding culverts to divert some of the flow discharge in a channel so that it is distributed to other channels. The results of this study are expected to confirm the capability of the PCSWMM model in the design and evaluation of drainage systems in urban areas. Also, the results of this study are expected to emphasize the importance of the role of the hydrodynamic model as a tool for planning the capacity of an adequate drainage system.
Pengaruh Perubahan Tutupan Lahan Rawa dan Ruang Terbuka Hijau terhadap Peningkatan Debit Limpasan di Kota Palembang Alia, Febrinasti; Hakki, Helmi; Jati, Stevanus Nalendra; Fakhriansyah, M
Teras Jurnal : Jurnal Teknik Sipil Vol. 15 No. 2 (2025): Teras Jurnal (September)
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v15i2.1282

Abstract

Abstrak   Perubahan penggunaan lahan dari lahan non terbangun menjadi lahan terbangun akan menyebabkan terjadinya peningkatan limpasan atau aliran permukaan. Peningkatan debit puncak untuk masing-masing periode ulang tahunan disebabkan oleh berubahnya nilai koefisien limpasan (C) yang pada akhirnya meningkatkan persentase curah hujan yang menjadi limpasan permukaan.  Penelitian ini difokuskan untuk memprediksi tren perubahan tutupan lahan berdasarkan ketersediaan data historis di lokasi studi yaitu antara tahun 2018, 2019 dan 2021 dengan menggunakan metode supervised maximum likelihood classification (MLC) dengan perangkat lunak ArcGIS terutama pada wilayah dengan persentase rawa terbesar di kota Palembang. Hasil analisa tutupan lahan pada DAS Kertapati menghasilkan perubahan lahan yang meningkat signifikan pada kelas tutupan lahan permukaan diperkeras yaitu 7% (2018) menjadi 12% (2021). Namun peningkatan luasan area vegetasi budidaya berupa sawah juga meningkat dari 41% (2018) menjadi 49% (2021). Analisis perhitungan debit banjir menggunakan metode Hidrograf Satuan Sintetis Soil Conservation Service dan distribusi hujan Alternating Block Method (ABM). Didapatkan pada tahun 2018 nilai debit banjir untuk periode 10 tahun sebesar 29,167 m3/det, kemudian untuk tahun 2019 nilai debit banjir untuk periode 10 tahun sebesar 34,820 m3/det dan untuk tahun 2021 nilai debit banjir untuk periode 10 tahun sebesar 34,169 m3/det.   Kata kunci: limpasan, perubahan tutupan lahan, debit rencana, hidrograf   Abstract   Changes in land cover from undeveloped to developed areas lead to an increase in runoff or surface flow. The rise in peak discharge for each annual return period is attributed to changes in the runoff coefficient (C), which increases the percentage of rainfall contributing to surface runoff. This study aims to predict trends in land cover change based on the availability of historical data from 2018, 2019 and 2021, utilizing the supervised maximum likelihood classification (MLC) method with ArcGIS software, particularly in regions with the biggest wetlands in Palembang City. The results of the land cover analysis in the Kertapati Watershed revealed a significant increase in the impervious surface, rising from 7% in 2018 to 12% in 2021. Conversely, the area of cultivated vegetation, specifically rice fields, also increased from 41% in 2018 to 49% in 2021. To analyze flood discharge, the study employed the Soil Conservation Service Synthetic Unit Hydrograph method and the Alternating Block Method (ABM) for rainfall distribution. The findings indicated that the flood discharge value for a 10-year return period was 29.167 m³/sec in 2018, increasing to 34.820 m³/sec in 2019 and slightly decreasing to 34.169 m³/sec in 2021.   Keywords: runoff, land cover change, design discharge, hydrograph
Kajian Pengaruh Lubang Resapan Biopori (LRB) Terhadap Kapasitas Infiltrasi Pada Perumahan Kencana Damai Kota Palembang Alia, Febrinasti
Teras Jurnal : Jurnal Teknik Sipil Vol. 12 No. 1 (2022): Volume 12 Nomor 1, Maret 2022
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v12i1.672

Abstract

Abstrak Permasalahan banjir di kawasan pemukiman padat penduduk merupakan permasalahan yang sering terjadi di wilayah perkotaan. Salah satu contohnya adalah banjir yang sering terjadi pada perumahan Kencana Damai yang terletak pada Kecamatan Sako, Kelurahan Sukamaju, Kota Palembang. Setiap musim penghujan, genangan atau banjir sering terjadi dengan durasi 2-3 jam. Penelitian ini digunakan untuk mengetahui kapasitas infiltrasi dan mengetahui seberapa besar efektivitas LRB dalam meningkatkan laju infiltrasi.  Dalam pembuatan lubang biopori, diberikan jarak 60 cm (50-100 cm) karena disesuaikan dengan luas lahan yang terbatas. Lubang yang dibuat memiliki kedalaman sekitar 1 m dengan diameter lubang sebesar 4 inch. Kemudian dimasukkan sampah daun kering, dan pengukuran laju infiltrasi dilakukan setelah sampah terdekomposisi selama 7 hari, 14 hari, dan 28 hari. Berdasarkan penelitian yang dilakukan, diketahui bahwa sifat fisik dan jenis tanah pada lokasi 1 dan 3 sama yaitu SW (pasir bergradasi baik), sedangkan pada lokasi 2 memiliki jenis tanah SP (pasir bergradasi jelek). Sifat fisik dan jenis tanah ini mempengaruhi kapasitas infiltrasi. Hal ini dibuktikan dengan kenaikan laju infiltrasi yang besar pada lokasi 1 dan 3 (SW) yaitu 15,588 cm/jam atau 57,86% dan 14,971 cm/jam atau 55,57%. Berbeda dengan laju infiltrasi lokasi 2 dengan jenis tanah SP (pasir bergradasi jelek), kenaikan laju infiltrasi pada lokasi tersebut hanya sebesar 4,435 cm/jam atau 16,46%. Kata kunci: karakteristik tanah, LRB, infiltrasi, ekodrainase  Abstract The problem of flooding in densely populated residential areas is a problem that often occurs in urban areas. One example is the frequent flooding of Kencana Damai housing estates located in Sako District, Sukamaju Village, Palembang City. Every rainy season, puddles or floods often occur with a duration of 2-3 hours. This study was used to determine the infiltration capacity and to find out how much effective LRB is in increasing the infiltration rate.. In making biopore holes, a distance of 60 cm (50-100 cm) is given because it is adapted to the limited land area. The hole made has a depth of about 1 m with a hole diameter of 4 inches. Then, dry leaf litter was added, and the infiltration rate was measured after the waste had decomposed for 7 days, 14 days, and 28 days. Based on the research conducted, it is known that the physical properties and soil types at locations 1 and 3 are the same, namely SW (good graded sand), while at location 2 the soil type is SP (poorly graded sand). These physical properties and soil types affect the infiltration capacity. This is evidenced by the large increase in the infiltration rate at locations 1 and 3 (SW), namely 15.588 cm/hour or 57.86% and 14.971 cm/hour or 55.57%. In contrast to the infiltration rate at location 2 with SP soil type (poorly graded sand), the increase in infiltration rate at that location was only 4.435 cm/hour or 16.46%. Keywords: soil characteristics, LRB, infiltration, ecodrainage
Analisa Pengaruh Kerapatan Tanaman Terhadap Kinerja Constructed Wetland Pada Pengolahan Limbah Greywater Perumahan Alia, Febrinasti; Wardhani, Puteri Kusuma; Putra, Rafly Nugraha
Teras Jurnal : Jurnal Teknik Sipil Vol. 13 No. 2 (2023): Volume 13 Nomor 2, September 2023
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v13i2.875

Abstract

Abstrak Constructed wetland atau lahan basah buatan adalah salah satu penerapan eko - drainase dengan tujuan memperbaiki kualitas air, kuantitas air, konservasi air, menciptakan keindahan, dan estetika. Kondisi awal limbah greywater perumahan pada lokasi penelitian memiliki kadar limbah yang masih jauh dari baku mutu yaitu, BOD sebesar 93 Mg/L, COD sebesar 990,5 Mg/L, TSS sebesar 93 Mg/L, suhu sebesar 28,9°C dan pH air sebesar 9,6. Penelitian ini menganalisa pengaruh kerapatan tanaman eceng gondok terhadap kinerja lahan basah buatan. Pada kerapatan tanaman 13 tanaman/m2, kadar polutan turun dengan baik, untuk kadar BOD yang awalnya 990 Mg/L turun menjadi 42,17 Mg/L, kemudian kadar COD yang awalnya 794,4 menjadi 114,1 Mg/L, lalu dilihat kandungan TSS yang awalnya 93 Mg/L menjadi 20 Mg/L, dan pH dari 9,6 menjadi 7,6.  Pada kerapatan 21 tanaman/m2, untuk kadar BOD yang awalnya 990 Mg/L turun menjadi 29,73 Mg/L, kemudian kadar COD yang awalnya 794,4 menjadi 98,4 Mg/L. Kandungan TSS yang awalnya 93 Mg/L menjadi 13,6 Mg/L, dan pH dari 9,6 menjadi 7,2. Berdasarkan hasil penelitian didapatkan bahwa variasi kerapatan tanaman 13 individu/m2 menghasilkan efisiensi penurunan BOD, TSS, dan COD sebesar 94%, 79% dan 88%. Sedangkan variasi kerapatan tanaman 21 individu/m2 menghasilkan efisiensi penurunan BOD, TSS, dan COD sebesar 96%, 85% dan 90%. Kata Kunci: ekodrainase, lahan basah buatan, eceng gondok, limbah greywater  Abstract Constructed wetland or man-made wetland is one of eco-drainage applications, aiming to improve water quality, water quantity, water conservation, and for aesthetics purposes. The initial condition of greywater in the area of research does not meet the effluent standard, as such 93 Mg/L of BOD, 990,5 Mg/L of COD, 93 Mg/L of TSS, temperature of 28,9°C and pH of 9,6. This research analyze the effect of water hyacinth plant density on constructed wetland performance. At a plant density of 13 plants/m2, BOD levels which were initially 990 Mg/L decreased to 42,17 Mg/L, COD which was originally 794,4 to 114,1 Mg/L, then the TSS content was initially 93 Mg/L to 20 Mg/L, and pH from 9,6 to 7,6. For density 21 plants/m2, The initial BOD of 990 Mg/L dropped to 29,73 Mg/L, then the COD level which was originally 794,4 became 98,4 Mg/L. TSS content which was originally 93 Mg/L to 13,6 Mg/L, and pH from 9,6 to 7,2. Based on the results, plant density of 13 plant/m2 can reduce pollutant parameters up to 94% for BOD, 79% for TSS and 88% of COD while plant density of 21 plant/m2 can reduce pollutant parameters up to 96% for BOD, 85% for TSS and 90% of COD. Keywords: eco-drainage, constructed wetland, water hyacinth, greywater
Desain dan Perencanaan Teknis Kolam Retensi Arafuru Kota Palembang Alia, Febrinasti; Indriyati, Citra; Aditya, Bimo Brata
Teras Jurnal : Jurnal Teknik Sipil Vol. 13 No. 2 (2023): Volume 13 Nomor 2, September 2023
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v13i2.876

Abstract

Abstrak Pembangunan kolam retensi Arafuru belum mampu mengurangi frekuensi terjadinya banjir secara optimal karena Jalan Arafuru masih termasuk dalam lokasi titik banjir yang terdapat pada DAS Buah dengan ketinggian banjir antara 50-100 cm dengan durasi 24 jam. Kolam tambahan yang akan dibangun direncanakan seluas 5950 m2 untuk menampung kelebihan kapasitas kolam retensi eksisting. Optimalisasi kapasitas tampung kolam retensi Arafuru dapat dilakukan dengan mengkoneksikan outlet kolam retensi eksisting dengan inlet kolam retensi baru yang memiliki luasan 5950 m2 dengan kedalaman minimal 3 m untuk memenuhi daerah layanan/catchment area dengan luasan ±96,17 Ha. Pendugaan debit puncak limpasan permukaan dilakukan dengan metode SCS-CN dan didapatkan tinggi elevasi muka air maksimum inflow sebesar 11,4 m3/s terjadi pada menit ke 60, sedangkan elevasi puncak yaitu 2,7 m. Simulasi reduksi debit banjir dilakukan dengan software HEC-HMS, didapatkan bahwa penambahan kolam retensi dapat mengurangi debit inflow puncak dari 11,4 m3/s menjadi 7,1 m3/s atau sebesar 37,72%. Kata Kunci: Kolam retensi, analisa hidrologi, analisa spasial, pengendalian banjir  Abstract The construction of Arafuru retention basin has not been able to optimally reduce the frequency of flooding since Jalan Arafuru district is still included as one of the flood points within Buah Watershed with flood depths between 50-100 cm and duration of 24 hours. The additional basin is designed to be 5950 m2 in accordance with the area of land that has been acquired to accommodate the over capacity of the existing retention basin. The optimization of Arafuru retention basins capacity can be done by connecting outlet from existing basin to the inlet of the new basin. Retention basin of 5950 m2 with a minimum depth of 3 meters is expected to accommodate runoff from ± 96,17 ha catchment area. The estimation of the peak runoff discharge was carried out using the SCS-CN method and the maximum inflow water level elevation was 11,4 m3 / s occurring in the 60th minute, while the peak elevation was 2,7 m. The simulation of flood discharge reduction using HEC-HMS resulted that the addition of a retention basin could reduce the peak inflow from 11,4 m3 / s to 7,1 m3 / s or as much as 37,72%. Keywords: retention basin, hydrological analyses, spatial analyses, flood control
Co-Authors Aditya, Bimo Brata Agus Lestari Yuono Al Amin, Muhammad Baitullah Apriani, Nyimas Ida Fakhriansyah, M Hadinata, Febrian Hakki, Helmi Helmi Haki Indriyati, Citra M. Baitullah Al Amin, M. Baitullah Putra, Rafly Nugraha Sakura Yulia Iryani, Sakura Yulia Stevanus Nalendra Jati Trimahmudi, Arief Wardhani, Puteri Kusuma