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All Journal Bumi Lestari POSITRON Jurnal Fisika FLUX KLIK (Kumpulan jurnaL Ilmu Komputer) (e-Journal) EnviroScienteae Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul) JURNAL HUTAN TROPIS Jurnal Natural Scientiae
Ichsan Ridwan
Program Studi Fisika, FMIPA, Universitas Lambung Mangkurat
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Journal : EnviroScienteae

 1 
ANALISIS BANJIR SUNGAI MENGGUNAKAN MODEL HEC-RAS DI WILAYAH DAS TABANIO KABUPATEN TANAH LAUT PROVINSI KALIMANTAN SELATAN Prayogo, Shonu Dwi; Syahdan, Muhammad; Ridwan, Ichsan; Rifa’i, Muhammad Ahsin
EnviroScienteae Vol 19, No 4 (2023): ENVIROSCIENTEAE VOLUME 19 NOMOR 4, NOVEMBER 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v19i4.17817

Abstract

This study aims to determine the amount of water runoff and water depth in the Tabanio Watershed, Tanah Laut Regency. The study was conducted using the HEC-RAS software to generate a flood simulation model. Data analysis included Digital Elevation Model for National Scale (DEMNAS) data, flood discharge data, rainfall data, river bathymetry, and tidal data. DEMNAS data was obtained from the website of the National Geospatial Information Agency (BIG), rainfall data was obtained from the Center for Hydrometeorology and Remote Sensing (CHRS) website. Rainfall data analysis involves selecting the maximum daily rainfall value to determine the flood discharge. The hourly flood discharge is calculated using the Synthetic Unit Hydrograph method with the Nakayasu approach. River bathymetry data is processed as additional data for DEM, with interval recording done every 0.2 seconds. Tide data was obtained through prediction based on the location constant closest to the research area and analyzed using the Pasut.exe software for a period of 6 days. Based on the results of flood analysis research using the HEC-RAS model in the Tabanio Watershed, Tanah Laut Regency, South Kalimantan Province, it can be concluded that the model results show the water depth and area of water runoff at maximum discharge. as follows: less than 0.5 meters with a very low category covering an area of 4,168.86 hectares, 0.51 to 1.5 meters with a low category covering an area of 6,417.79 hectares, 1.51 to 2.5 meters with a medium category covering an area of 1,987, 25 hectares, 2.51 to 3.5 meters with a high category of 741.47 hectares, and above 3.51 meters with a very high category of 113.69 hectares. So that the total water runoff reaches 13,429.05 hectares.
DAYA DUKUNG LINGKUNGAN HIDUP BERBASIS JASA EKOSISTEM PENYEDIA AIR DAN PANGAN DI KABUPATEN HULU SUNGAI UTARA Rizkon, Muhammad; Kadir, Syarifuddin; Kissinger, Kissinger; Ridwan, Ichsan
EnviroScienteae Vol 20, No 1 (2024): ENVIROSCIENTEAE VOLUME 20 NOMOR 1, FEBRUARI 2024
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v20i1.18880

Abstract

The population growth in Hulu Sungai Utara District has led to an unsustainable exploitation of natural resources, negatively impacting environmental quality. This study aims to analyze the environmental support of ecosystem services, specifically focusing on water and food provision in the region. The analytical method involves calculating indicative environmental support based on ecosystem services. It includes the classification of ecoregion characteristics (landscapes and natural vegetation types), land cover assessment, and the creation of service/performance maps using the Simple Additive Weighting method. The results indicate a predominance of high to very high categories in the ecosystem service of water provision, covering 71.77% of the total area. Similarly, the ecosystem service of food provision is characterized by moderate to very high categories, with the moderate category covering 30.13%, the high category covering 36.32%, and the very high category comprising 24.83% of the total area in Hulu Sungai Utara District. These findings provide crucial insights for policymakers and local communities to formulate informed strategies and policies for sustainable water and food resource management.
Co-Authors Abdur Rahman Agda Primaraniyanti Ahmad Eko Saputra Andi Farmadi Auliana Auliana Badaruddin Badaruddin Daratun Nurahmah Dini Sofarini Dodon Turianto Nugrahadi Dwi Kartini Fahruddin Fahruddin Fahruddin Fahruddin Gafuri, Ria Hanif Faisol Ibrahim Sota Ida Parida Santi Indah Ayu Septriyaningrum Indah Febrianti Indah Febrianti Kartini Sri Astuti Kissinger Kissinger Kurniawati, Neny Mikhail Rohim Muhammad Eksya Pratama Arieffullah Muhammad Syahdan Muliadi Aziz Munasipah Munasipah Nadia Anugrahi Lestari Nisfi Sasmita Nur Hidayah Nur Syifa Yarnie Nurahmah, Daratun Nurlina Nurlina Nurlina Nurlina Prayogo, Shonu Dwi Reffina Wahdianty Reida, Rina Ria Gafuri Rifa’i, Muhammad Ahsin Rina Reida Rizkon, Muhammad Rohyanti, Sri Santi, Ida Parida Sasmita, Nisfi Simon Sadok Siregar, Simon Sadok Sri Rohyanti Suarso, Eka Sudarningsih Sudarningsih Sudarningsih Sudarningsih Sudarningsih Sudarningsih Syarifuddin Kadir SYARIFUDDIN KADIR Titin Fahriana Wahdianty, Reffina Wahyuni Ilham Yesi Eka Pratiwi zainal abidin