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All Journal Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Riwayat: Educational Journal of History and Humanities
Simanjuntak, Mangambit Juliandar
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Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Education Engineering Environmental Science Industrial & Manufacturing Engineering Social Sciences

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Evaluation Needs of Planting Water Using Cropwat Software at Darung Secondary Channel in Prawiro Kepolo Irrigation Area, Indramayu District Simanjuntak, Mangambit Juliandar; Nanda, Mahdika Putra
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 10, No 1 (2025): EDISI MARET 2025
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v10i1.6473

Abstract

This study evaluates the availability and water needs in the Darung Secondary Channel (MG1-MG7) in the Prawiro Kepolo Irrigation Area, Indramayu District, during the second planting season. The water availability at the Darung Secondary Channel (DR) intake was calculated using the F.J. Mock method. In contrast, the water requirement in seven plots of mangosteen channel (MG1-MG7) was calculated by Cropwat simulation. Semi-monthly discharge data for 12 years is analyzed to determine the flagship discharge. The F.J. Mock method calculation results are 0.28 m³/second, and the field network data is 1.55 m³/second. So, the total availability of DR intake is 1.83 m³/second. The results of the Cropwat simulation show that the maximum water requirement in MG1-MG7 is 2.01 m³/second, resulting in a deficit of 0.18 m³/second. These findings confirm the need to optimize water in the deficit mangosteen channel. Recommendations include modernizing irrigation infrastructure and applying precision irrigation technology based on plants' needs. These measures are expected to improve water use efficiency and support agricultural productivity sustainability in the study area.
Evaluation of Dam Effectiveness in Mitigating Flood Risk Due to Climate Change in Upstream Areas Simanjuntak, Mangambit Juliandar
Riwayat: Educational Journal of History and Humanities Vol 8, No 2 (2025): April, Culture and Identity
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jr.v8i2.46400

Abstract

Global climate change has led to an increase in the intensity and frequency of extreme rainfall that contributes to increased flood risks, especially in upstream areas. In this context, dams play a crucial role as flood control infrastructure by regulating water flow and storing peak discharge. However, the effectiveness of dams in dealing with new hydrological challenges due to climate change has not been comprehensively evaluated, especially in upstream areas. This study aims to evaluate the effectiveness of dams in mitigating flood risks amid changing climate conditions, focusing on upstream areas. The method used is a systematic literature study of 10 selected scientific articles from 2018 to 2024, which were analyzed thematically and narratively. The results of the study show that dam effectiveness is greatly influenced by storage capacity, upstream environmental conditions, sedimentation, and the integration of adaptive technologies such as AI-based predictions and weather forecast-based reservoir management. Several studies emphasize the importance of adaptive management and land management to maintain optimal dam function. Thus, strengthening real-time monitoring systems, collaboration between institutions, and integration of climate data are the main recommendations for increasing dam resilience to future flood risks. This study contributes to the development of adaptive and sustainable water resource management policies in the era of climate change.
Co-Authors Mahdika Putra Nanda