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All Journal 3BIO: Journal of Biological Science, Technology and Management (Journal of Environmental Sustainability Management)
Yayat Hidayat
School Of Life Sciences And Technology, Institut Teknologi Bandung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Environmental Science Immunology & microbiology Neuroscience

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Analysis and Prediction of Water Balance Using Dynamic Modelling to Solve Water Scarcity in Cimahi Muhamad Fikri Fadhilah; Yayat Hidayat; Anne Hadiyane
3BIO: Journal of Biological Science, Technology and Management Vol. 4 No. 2 (2022)
Publisher : School of Life Sciences and Technology, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/3bio.2022.4.2.3

Abstract

Cimahi is one of the most populated, fast-growing cities in Indonesia. Consequently, various environmental problems appear, primarily related to the sustainability of water resources. Exploitation and pollution of water, especially groundwater, are not accompanied by a good water conservation system that ensures proper water infiltration into the soil, causing several locations in the city to experience water deficits. The city may suffer a severe water shortage if this problem is unsolved. This study aims to predict and analyze the need and availability of water in Cimahi in the next few years to determine the right solution to deal with this problem. Analysis and prediction of water availability/needs were carried out by building a dynamic model using STELLA software for simulating the conditions in the next ten years. The results of the model were combined with the applicable spatial policies to formulate possible solutions. Results showed that Cimahi will experience a water crisis starting from 2029 with a total water deficit of 8.22 million M³. The model also predicted South Cimahi District is the area with the worst conditions where the water crisis has occurred since 2022 and peaked in 2029 with water sufficiency of only 59.83%. Based on local spatial planning laws and policies, the city's government is advised to improve its catchment area to protect its water resources. The vegetation cover area surrounding the catchment area can be improved, and water absorption capacity can be increased through civil technical actions such as building absorption wells. The model results showed that a proper solution could be done by expanding 142.8 Ha of green/vegetation cover, building 1576 units of absorption wells, and increasing the PDAM supply by 100 l/second.
Status keberlanjutan penyediaan air di Sub DAS Cikeruh, bagian hulu DAS Citarum, Jawa Barat Riezcy Cecilia Dewi; Yayat Hidayat; Asep Suheri
Jurnal Pengelolaan Lingkungan Berkelanjutan (Journal of Environmental Sustainability Management) JPLB, Vol 7, No 3 (2023)
Publisher : Badan Kerjasama Pusat Studi Lingkungan (BKPSL) se-Indonesia bekerjasama dengan Pusat Penelitian Lingkungan Hidup IPB (PPLH-IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36813/jplb.7.3.268-284

Abstract

Water balance or water avalibility that is not equal with the increasing water demand is a problem often encountered in water resources. The Cikeruh sub-watershed is one of the upstream parts of the Citarum watershed which has a water deficit. These problems require policy options in realizing sustainable use of water resources. The research aims to analyze the index and sustainability status of water supply in the Cikeruh sub-watershed and determining sensitive attributes of each sustainability dimension, namely the ecological, economic, social and institutional dimensions. The data analysis method uses the MDS (Multi-Dimensional Scaling) with the Rapfish software. The data used includes primary and secondary data.. The instruments for collecting primary data were questionnaires and structured questions to stakeholders. The result show that the level of sustainability of water supply in the Cikeruh Sub-watershed is generally categorized as quite sustainable (57,68%). The results of leverage analysis describes ten attributes that affect the levels of sustainability, namely the maintenance of the catchment area, water availability, availability of funds, other economic resources, farmers' income, transfer of land ownership, community understanding, community participation, coordination between institutions, and cooperation. By optimizing the most sensitive attributes, the sustainability of water supply could be improved.
Co-Authors Anne Hadiyane Asep Suheri Muhamad Fikri Fadhilah Riezcy Cecilia Dewi