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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management MEDIA KOMUNIKASI TEKNIK SIPIL Teknik Sipil dan Arsitektur JURNAL TEKNOLOGI LINGKUNGAN Jurnal Pariwisata Pesona Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal Rekayasa Jurnal Rekayasa Sipil dan Desain Teras Jurnal Khasanah Ilmu - Jurnal Pariwisata Dan Budaya Jurnal Aplikasi Teknik Sipil Spatial : Wahana Komunikasi dan Informasi Geografi Journal of Engineering and Scientific Research (JESR) Jurnal Teknik Sipil dan Arsitektur Jurnal Industri Pariwisata Journal of Innovation and Technology Prosiding Seminar Nasional Hasil Penelitian Sains, Teknik dan Aplikasi Industri Fakultas Teknik Universitas Lampung Venus: Jurnal Publikasi Rumpun Ilmu Teknik Jurnal Teknik Sipil J-Sil (Jurnal Teknik Sipil dan Lingkungan) Jurnal Sinergi Jurnal Teknik Sipil
Ahmad Herison
Universitas Lampung
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Pemetaan Ekowisata Terumbu Karang Berbasis Geographic Information System (GIS) di Pulau Pahawang Madany, Orista Ammar; Herison, Ahmad; Romdania, Yuda; Ashruri, A
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3429

Abstract

AbstractCoral reef ecosystems are threatened with extinction. Along with the development of technology, the distribution of coral reefs can be reviewed only by looking at an information map. The purpose of this research is to map coral reef ecotourism on Pahawang Island. So that it is expected to provide information to the community and also island developers related to the condition of the coral reef ecosystem on Pahawang Island. The method used in map processing is sentinel 2A image data processing with the guided classification method in ArcGIS software, while the analysis method is descriptive, which describes the results of the coral reef cover map. The results of the analysis and discussion found that Geographic Information System (GIS) based remote sensing with processed sentinel 2A imagery is very helpful in the process of finding information on the distribution of coral reefs on Pahawang Island. Data processing in ArcGIS software using guided classification methods can be used in order to produce coral cover maps. The results of the coral reef distribution map have an area of 128.64 Ha. The conclusion is that Geographic Information System (GIS) based remote sensing with ArcGIS software can be used to produce coral cover maps. On Pahawang Island, the coral reef cover area of 128.64 Ha was obtained.
STUDI POTENSI EKOWISATA MANGROVE DI PETENGORAN, KABUPATEN PESAWARAN Cesarani, Anisa; Herison, Ahmad; Ashruri, Ashruri; Romdania, Yuda
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3442

Abstract

Mangrove ecotourism is difficult to establish. This is caused by the lack of awareness of the community and village officials in managing these tourist attractions. Activities to develop the Petengoran mangrove ecotourism area to improve the welfare of coastal communities through the preparation of guidelines for the development of mangrove ecotourism for stakeholders from Gebang Village. So this study aims to determine the type, density value, frequency, dominance and important index value (INP) of the Petetengoran mangrove by collecting data using the line transect method by counting the number of species (trees, poles, saplings, seedlings). From the research results with 3 observation plots, four species were found, namely: Avicennia Marina, Ceriops Sp, Rhizophora Apiculata, Rhizophora Stylosa. The type of mangrove that has the highest important value index (INP) for the tree level is that of Rhizophora Apiculata (INP: 165.85) and the lowest is Ceriops Sp (INP: 7.14), for the sapling/sapling level the mangrove species has an important value index the highest and lowest was Rhizopora stylosa (INP : 15, 69). As for the seedling level, the species that had the highest and lowest importance value index were Rhizophora Apiculata and Rhizopora stylosa (INP : 165.85) and the lowest (INP: 15.69). It was concluded from the results that have been carried out that the Petengoran mangrove forest area can be said to be suitable for development as an ecotourism destination with the results of the analysis of the density of the mangrove vegetation showing that the dominant plant species is Rhizophora Apiculata, so that the condition of the mangrove forest in Petengoran, Padang Cermin District, is included in the condition category. good with moderate criteria, not too dense.
Daya Lenting Akar Mangrove Rhizophora sp. sebagai Peredam Gelombang (Studi Kasus Pantai Dewi Mandapa, Pesawaran) Khadafi, M Fariq; Herison, Ahmad; Romdania, Yuda; Khotimah, Siti Nurul
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 12 No. 1 (2024): Edisi Maret 2024
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v12i1.4488

Abstract

Hutan mangrove adalah sekelompok pohon atau tumbuhan yang hidup dengan kesamaan adaptasi morfologi dan fisiologi terhadap habitat yang dipengaruhi pasang surut. Gelombang laut menyebabkan abrasi di sekitar pesisir pantai. Daya lenting mangrove memberikan kontribusi besar terhadap peredam gelombang.Tujuan penelitian adalah untuk mengetahui daya lenting akar tunjang mangrove Rhizophora sp. sebagai peredam gelombang.Metode digunakan pada penelitian ini adalah metode Transek-kuadrat oleh Wantasen tahun 2002 untuk menghitung cakupan daerah penelitian. Pengujian dilakukan menggunakan alat Control Universal Testing Machine dan dilakukan uji tarik untuk mendapatkan nilai gaya yang dapat ditahan oleh satu akar mangorve. Hasil pengolahan di peroleh pada ketebalan 10 meter, kelentingan akar tunjang mencapai 2,7380E+03 J/m2 dengan energi gelombang yang bisa ditahan sebesar 2,97726E-01 J/ms. Namun, pada ketebalan 50 meter, kelentingan turun menjadi 2,2041E+03 J/m2 dengan energi teredam sebesar 2,99245E-01 J/ms. Kesimpulannya adalah daya lenting akar tunjang oleh mangrove Rhizophora sp memiliki data lenting yang baik dalam meredam gelombang, daya lenting akar mangorve akan meningkat seiring dengan bertambahnya jumlah akar mangrove pada suatu area sehingga energi peredaman meningkat.
Analisis Muka Air Banjir terhadap Tutupan Lahan di Sungai Bulok Kabupaten Pringsewu Provinsi Lampung Amanda, Tiara Maelta; Kusumastuti, Dyah Indriana; Zakaria, Ahmad; Herison, Ahmad; Wahono, Endro Prasetyo
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.v13i2.957

Abstract

Abstrak Sungai Bulok menjadi salah satu Lokasi banjir di WS Seputih Sekampung yang berhasil diidentifikasi. Pada tahun 2017, terjadi banjir besar di Sungai Bulok sehingga mengakibatkan Bendung Gatel (STA 11+00 dari Muara Way Bulok) rusak berat dan juga menyebabkan kerusakan tanggul. Tujuan penelitian ini akan menganalisis Debit Puncak Banjir untuk mengetahui Tinggi Muka Air banjir dengan menggunakan HEC-RAS, serta membahas alternatif untuk mengurangi dampak banjir. Analisis banjir rencana menggunakan metode HSS Nakayashu. Debit puncak banjir Sungai Bulok, untuk kala ulang 20 tahun sebesar 517,02 m3/dt. Profil muka air banjir pada sungai bulok untuk Kala Ulang 2, 5, dan 10 tahun aman dari banjir, sedangkan untuk kala ulang 20 tahun terdapat banjir dari Ruas 1 sampai dengan Ruas 8 sungai Bulok. Untuk alternatif jangka pendek dan menengah diperhitungkan panjang tanggul Untuk mereduksi limpasan yang terjadi dilakukan simulasi hidrolika dengan mengubah tutupan lahan sebanyak 10% sehingga dapat menurunkan Debit Banjir Kala ulang 20 tahun menjadi 313,35 m3/dt atau sebesar 39,39%. Kata kunci: Sungai Bulok, HEC-RAS, tata guna lahan, banjir  Abstract Bulok River is one of the identified flood locations in the Seputih Sekampung Watershed. In 2017, there was a major flood on the Bulok River, causing the Gatel Dam (STA 11+00 from Muara Way Bulok) to be heavily damaged and also causing damage to the embankment. The purpose of this study will be to analyze the Peak Flood Discharge to determine the Flood Water Level using HEC-RAS, as well as discuss alternatives to reduce the impact of flooding. Design flood analysis using the HSS Nakayashu method. The peak flood discharge of the Bulok River, for a 20-year return period, is 517.02 m3/sec. The profile of the flood water level in the bulok river for return periods 2, 5, and 10 years is safe from flooding, while for the 20 year return period there are floods from section 1 to section 8 of the Bulok river. For the short and medium term alternatives, the length of the embankment is calculated. To reduce the runoff that occurs, hydraulic simulations are carried out by changing the land cover by 10% so that it can reduce the 20 year return period flood discharge to 313.35 m3/s or 39.39%. Keywords: Bulok River, HEC-RAS, land use, flood
Pemanenan Air Hujan Dengan Metode Roof Catchment Sebagai Pengawetan Air Bangunan Gedung Institut Teknologi Sumatera Jerfikanasa Murda, Gung Bagus; Herison, Ahmad; Zakaria, Ahmad; Indriana K, Dyah; Ofik Taufik P, Ofik
Teras Jurnal : Jurnal Teknik Sipil Vol. 14 No. 2 (2024): Volume 14 Nomor 2, September 2024
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v14i2.1127

Abstract

Abstrak Institut Teknologi Sumatera memiliki lahan dengan total 275 Ha dan diprediksi dapat menampung 64.000 mahasiswa pada 25 tahun kedepan. Laju penerimaan mahasiswa akan berbanding dengan pembangunan dan perubahan tata guna lahan yang mengakibatkan meningkatnya limpasan permukaan dan menurunnya ketersediaan air tanah. Perlu dikakukan upaya preventif seperti pemanenan air hujan sebagai bentuk konservasi sumber daya air tanah. Kebutuhan air salah satu gedung sebesar 3.024 m3/tahun, direncanakan metode pengawetan air secara pemanenan air hujan, menghasilkan pasokan air sebesar 2.690,086 m3/tahun. Sistem pemanenan air hujan dapat menghemat penggunaan air tanah sebesar 40% dari penggunaan air gedung pertahunnya. Sistem pemanenan air hujan diharapkan mampu mengurangi penggunaan air tanah, dan upaya konservasi sumber daya air sehingga dapat meminimalisir terjadinya krisis air tanah. Kata kunci:  Tataguna lahan, Kebutuhan dan pasokan air, Pemanenan air hujan,    Abstract Sumatra Institute of Technology has a total land area of 275 ha and is predicted to be able to accommodate 64,000 students in the next 25 years. New student admission will be proportional to development and land use changes, which cause a decrease in groundwater supply and an increase in surface runoff. Preventative methods such as rainwater harvesting as a form of groundwater resource conservation need to be strengthened. One of the buildings has a 3,024 m3/year water requirement. A water preservation method is planned using rainwater harvesting, resulting in a water supply of 2.690,086 m3/year. Rainwater harvesting system can reduce annual building water demand by up to 40%. It's hoped that the rainwater harvesting system will be able to reduce groundwater use and conserve water resources so that it can minimize the occurrence of groundwater crises. Keywords: Land use, Water demand and supply, Rainwater harvesting
EVALUASI EROSI TANAH BERVEGETASI DENGAN ALAT RAINFALL SIMULATOR (TES EKSPERIMENTAL DI LABORATORIUM) Azzahra, Iftasya Shafa; Romdania, Yuda; Herison, Ahmad; Tugiono, Subuh; Murda, Gung Bagus J
Jurnal Teknik Sipil dan Arsitektur Vol 29 No 2 (2024): JURNAL TEKNIK SIPIL DAN ARSITEKTUR
Publisher : Fakultas Teknik Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jtsa.v29i2.3724

Abstract

Hujan adalah bagian dari siklus hidrologi yang paling berbahaya karena dapat menyebabkan erosi. Penelitian di Kebun Kolektif TP PKK Kota Bandar Lampung mengindikasikan kekurangan unsur hara akibat erosi yang disebabkan oleh limpasan air hujan, ditambah dengan kondisi lahan yang cukup curam. Tujuan penelitian adalah menganalisis pengaruh variasi kemiringan dan intensitas curah hujan terhadap laju erosi serta upaya pengendaliannya. Metode yang digunakan pada penelitian ini adalah rainfall simulator. Hasil dari penelitian adalah laju erosi terkecil terjadi pada intensitas curah hujan 0,75 liter/menit dan kemiringan lereng 8% terjadi sebesar 0,04 Ton/Ha sedangkan laju erosi paling besar terjadi yaitu pada intensitas curah hujan 1,75 liter/menit dan kemiringan lereng 45% terjadi sebesar 0,59 Ton/Ha, terlihat bahwa intensitas curah hujan dan kemiringan lereng mempunyai pengaruh signifikan terhadap laju erosi tanah, laju erosi semakin meningkat seiring dengan kedua faktor tersebut. Kesimpulannya adalah curah hujan dengan intensitas tinggi dan kemiringan lereng yang curam meningkatkan laju erosi yang dapat merusak struktur tanah, sehingga perlu dilakukan teknik konservasi untuk mengurangi laju erosi dan menjaga kesuburan tanah, seperti pemeliharaan vegetasi penutup tanah dan penyuluhan teknik konservasi tanah bagi petani dan masyarakat. Kata kunci: Siklus Hidrologi, Vegetasi, Limpasan, Curah Hujan, Kemiringan Lereng
Bantuan Penyuluhan Pengembangan Kawasan Ekosistem Mangrove Berbasis Masyarakat di Desa Batu Menyan Dusun Ketapang Ujung Kecamatan Teluk Pandan Kabupaten Pesawaran Herison, Ahmad
Jurnal Sinergi Vol. 1 No. 1 (2020): Jurnal SINERGI
Publisher : LPPM Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsi.v1i1.6

Abstract

Pengetahuan mengenai pengelolaan ekosistem mangrove yang tidak merusak lingkungan dan dapat dijadikan potensi ekowisata sangat penting untuk diketahui masyarakat khususnya Kabupaten Pesawaran dengan potensi pariwisata yang besar. Tujuan dan manfaat dari kegiatan pengabdian ini adalah: Memberikan penyuluhan mengenai pentingnya menjaga ekosistem pesisir terutama mangrove, membangun kesadaran masyarakat agar lebih memperhatikan lingkungan dan menjaga ekosistem, Salah satu kegiatan yang dapat melestarikan keseimbangan ekosistem mangrove, dan memberikan pengetahuan kepada mahasiswa yang terlibat langsung dalam proses penanaman mangrove. Metode yang digunakan dalam kegiatan penyuluhan adalah dengan cara diskusi dan metode yang digunakan untuk penanaman mangrove adalah dengan menggunakan bibit hasil persemaian. Kegiatan penyuluhan dan penanaman mangrove ini dilaksanakan pada tanggal 27 Juli 2020 di Pantai Ketapang Pesawaran yang diikuti oleh dinas Kelautan, masyarakat sekitar dan mahasiswa. Dalam kegiatan yang dilakukan didapatkan kesimpulan sebagai berikut: (1) Adanya kegiatan ini untuk memberikan penegtahuan mengenai pentingnya menjaga ekosistem pesisir terutama mangrove. Pengetahuan tentang cara penanaman mangrove. Membangun kesadaran masyarakat agar lebih memperhatikan lingkungan dan menjaga ekosistem. Salah satu kegiatan yang dapat melestarikan keseimbangan ekosistem mangrove dan memberikan pengetahuan kepada mahasiswa yang terlibat langsung dalam proses penanaman mangrove ini (2) Dengan adanya kegiatan ini menjadikan titik awal bagi masyarakat untuk melanjutkan usaha penanaman mangrove sebagai perluasan konservasi mangrove.
Bantuan Penyuluhan dan Kegiatan Transplantasi Terumbu Karang di Pantai Ketapang Kabupaten Pesawaran Herison, Ahmad; Romdania, Yuda
Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Vol. 1 No. 1 (2017): Jurnal Sakai Sambayan
Publisher : Lembaga Penelitian dan Pengabdian Universitas Lampung

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

Abstract

Abstract — Coral reefs are coastal marine biota biodiversity. Ketapang beach is one of the tourism destinations in the province of Lampung, therefore there are many activities that can be identified damage to the coral reef at the beach area, so that the necessary steps anticipatory one of them is to transplant corals. The purpose of this service activities 1) Knowing the causes of coral reef degradation in Ketapang Beach, 2) Implement saving coral reefs on the coast of Ketapang, Ketapang District of Pesawaran District. The method is performed in the context of community service are 1) Extension to the public on the importance of coral reef ecosystems, 2) Doing tranplastasi coral fragmentation method using acropora seed. Event followed by several stakeholders from the public and the government. This activity can be concluded: 1) The activities of Ketapang beach tourism indicate damage to coral reefs in the region, it is necessary for coral reef conservation efforts with transplant method. 2) The activity of saving coral reefs done by: transplants used is the fragmentation method. And to preserve the coral reef ecosystem, program outreach to the community is also an effort to prevent the destruction of coral reefs. Keywords — Coral Reef, Tranplantation, Ketapang Beach.
Pengaruh Derajat Kejenuhan Pada Tanah Gambut Menggunakan Uji Kuat Geser Tanah Firdaus, Achmad Paksi; Setyanto, Setyanto; Herison, Ahmad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 6 No. 3 (2018): Edisi September 2018
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v6i3.844

Abstract

The soil occupies an important role in the construction of a building, the main benefit of the soil isas a foundation of the construction, there are several soil shear strength tests, such as DirectShear Test, and Vane Shear Test. Each test can produce different test results for the same testobject. This may occur due to different testing procedures and workings of different tools as wellas the main test result targets of each equipment in the determination of soil parameters.Therefore, a careful soil investigation is needed, especially to determine the degree of saturationin peat soils by using soil shear strength test. In this study, the soil tested is a type of peat soiloriginated from the Rawa Seragi area, Belimbing Sari Village, Jabung District, East LampungDistrict.The tests were conducted directly in the laboratory for 12 (twelve) points and at differentdepths with Vane Shear and Direct Shear tools used to calculate the soil and maximum readingability on the torsimeter dial. Based on the test results obtained the average shear strength valueof Vane Shear on saturated soil at 30cm with an average value of 0.0379 and at a depth of 50cmwith an average value of 0.0384 and on unsaturated soil at a depth of 30cm with an average valueof 0.0434 and at a depth of 50cm with an average value of 0.0406 thus obtained a decrease of0.0066.Keywords: Degree of Saturation, Peat Soil, Shear Strength Test
Analisis dan Desain Sistem Drainase di Lingkungan Universitas Lampung (Studi Kasus: Zona III Wilayah Rektorat – Fakultas Pertanian) Effendi, Rahmat; Purwadi, Ofik Taufik; Herison, Ahmad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 6 No. 3 (2018): Edisi September 2018
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v6i3.895

Abstract

Water problems consist of three types: flood, drought, and water pollution. Floods are recognized as a significant source of threat to human life. One of the flood prevention actions that can be done is to optimize the drainage channels. Drainage can be defined as a technical action to reduce excess water so that the function of the area or land is not disturbed. University of Lampung is one of the locations prone to flooding. Therefore, a research to overcome the flood that occurred at the University of Lampung has been conducted (Case Study: Zone III Rectorate Area - Faculty of Agriculture). The purposes of this research are to analyze the drainage system of University of Lampung and to design drainage system that fulfill flood discharge plan. The research was conducted by survey in the field. The analysis conducted in this study include hydrological analysis and hydraulics analysis using HEC-RAS4.1.0 application. Calculation of discharge plan using rational method.. Based on the analysis results, there are no channels that are not sufficient for flood discharge, but there are some channels that are disconnected and cause the water to not flow. The disconnected channels are located on the channel with the DN5 and DN62 codes. For that, it is recommended to create a channel connecting DN62 channel with DN63, and make a channel on channel DN5 to DN65. The budget required for the repair of this channel is Rp 207,203,725.00 (Two Hundred Seven Million Two Hundred and Three Thousand Seven Hundred Twenty Five Rupiah).Keywords: Drainage, HEC-RAS, hydrology, hydraulics, floods
Co-Authors Achmad Paksi Firdaus Agestia, Lady Ahmad Zakaria ahmad zakaria Ahmad Zakaria Ahmad Zakaria Amanda, Tiara Maelta amelia sukma cindy Amril Maruf Siregar Amril Ma’ruf Siregar Anma Hari Kusuma, Anma Hari Arief, Farah Diba Ariestina Fanani Ashruri Ashruri, Ashruri Ashruri, A Azzahra, Ardhita Rahma Azzahra, Iftasya Shafa Cesarani, Anisa cindy, amelia sukma Dewi, Tiara Servita Dipo Akbar Doni Pramanda Dyah Indriana K Dyah Indriana Kusumastuti Dyah Kusumastuti eko widarsono Elza Novilyansa Elza Novilyansa Endro P Wahyono Endro Prasetyo Wahono Fahri, Muhammad Yusrizal Fakhrizal, Achmad Bagus Farhan Rachmanda Fathan Naufal Ahsan Febrizky C Putri Firdaus, Achmad Paksi Fredinan Yulianda Gatot Eko Susilo Gatot Eko Susilo Gatot Eko Susilo Gung Bagus Jerfikanasa Murda I Wayan Nurjaya Ika Kustiani Indriana K, Dyah Irwani Ninik Wijaya Jerfikanasa Murda, Gung Bagus Karlina Sari Kesuma, Mas Achmad Arief Rachmatulah Khadafi, M Fariq Kristianto Usman Lintang Kurnia Aridini Luky Adrianto M, Sefrinta S M. Irfan Affandi Madany, Orista Ammar Margaretta Welly Melly Nugraheni Murda, Gung Bagus J Nur Arifaini Ofik Ofik Taufik P Ofik Purwadi Ofik Taufik P, Ofik Ofik Taufik Purwadi Ofik Taufik Purwadi, Ofik Taufik Opik Taufik Purwadi Pandi Aditiya Purwadi, Opik Taufik Qur'ani, Mutiara Nurul Rachmanda, Farhan Rahayu Sulistyorini Rahmat Effendi Rahmat Effendi, Rahmat Rian Alfian Sandy Kusuma Sari, Devi Kurnia Sari, Dina Mariana Setyanto Setyanto Setyanugraha, Tegar Siti Nurul Khotimah Subuh Tugiono Subuh Tugiono, Subuh Sudewa, Wijoyo Mensen Tiara Maelta Amanda Willy Brilliant Yosua Windy Putri Diwantari Yanti, Cristi Yuda Romdania Yuda Romdania Yuda Romdania Yuda Romdania Zainal Abidin Zainal Abidin