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Prediction of Groundwater Storage in Gabus Wetan Subdistrict, Indramayu Regency, West Java Province, Indonesia Septian Fauzi Dwi Saputra; Roh Santoso Budi Waspodo; Budi Indra Setiawan
Jurnal Teknik Sipil dan Lingkungan Vol. 1 No. 3: Desember 2016
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3847.797 KB) | DOI: 10.29244/jsil.1.3.147-158

Abstract

Gabus Wetan Subdistrict, Indramayu Regency in West Java Province known as one of rice production center in Indonesia has common problem of surface irrigation water that is unavailable in dry season. It necessary to find alternative water source from groundwater to increase intensity as well as productivity. The aim of this study were to determine geoelectrical-hydrogeological profiles in form of distribution characteristics of the aquifer indicated by the resistivity of rocks and to predict the groundwater reserve potential in Gabus Wetan, Indramayu Regency. Resulted information can then be used to exploit groundwater for alternative supply of irrigation water. The result of this study shown that the rock resistivity in the area ranging between 1-30 Ωm. The rock aquifers consist of sandy clay, clayey sand, and sand. The shalllow groundwater (unconfined aquifer) are in the range of 3-40 meters below the soil surface having tickness of aquifer in the range of 7-20 meters. The deep groundwater (confined aquifer) can be estimated at the depth of more than 60 meters below the soil surface having tickness more than 40 meters. The hydraulic conductivity is estimated 20 m/day for unconfined aquifer and confined aquifer. The predicted groundwater storage of unconfined aquifer was about 31,687.2 m3/day or 0.37 m3/sec and confined aquifer 99,382.6 m3/day or 1.15 m3/sec.Keywords: aquifer,  groundwater, hydrogeology, hydraulic conductivity, resistivity
Analisis Neraca Air pada Pengelolaan Air dalam System of Rice Intensification-Organik (SRI-Organik) di Jawa Barat, Indonesia Chusnul Arif; Budi Indra Setiawan; Septian Fauzi Dwi Saputra; Masaru Mizoguchi
Jurnal Irigasi Vol 14, No 1 (2019): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (717.038 KB) | DOI: 10.31028/ji.v14.i1.17-24

Abstract

The System of Rice Intensification (SRI) has been known in Indonesia since 1999. However, there are some difficulties in utilizing SRI water management recommendations in the field, particularly in combination with organic nutrient management. While many demonstrations have given impressive gains in productivity, many farmers remain skeptical about applying this system. The current study was carried out to analyze water balance components in SRI paddy fields when applying intermittent irrigation. The experiment was conducted in Gabus Wetan village, Indramayu District, West Java, Indonesia from 17 Nov 2016 to 1 March 2017. We involved a local farmer who had been trained in SRI methods at an Organic SRI Center on how to conduct organic SRI management in his fields. Weather and soil sensors were set up in the fields to acquire data on daily field conditions as well as on plant growth. Data on weathers such as precipitation, air temperature, relative humidity, and wind speed were collected automatically during the season every 60 min, as well as the soil water depth. Analyzing the data collected, water balance analysis was well performed with low error (1.00%) in which the water inflows through precipitation and irrigation were 560 mm and 865 mm, respectively, while the outflows by crop evapotranspiration, percolation, and runoff were 430, 306 and 675 mm, respectively. Compared to conventional rice farming as commonly practices by applying continous flooding irrigation, water productivities of organic SRI were 30% and 27% higher with respect to total water input (WPIR) and with respect to the amount of evapotranspiration (WPET, respectively. Organic SRI produced 33% higher yield than that the average of conventional methods in the same subdistrict. The key was intermittent irrigation by maintaining shallow water depth (nearly soil surface) in the vegetative and generative stages. Therefore, it is an attractive option to farmers in irrigated areas where water resources is limited due to regional climate change effects. Keywords:             
Pemberdayaan Masyarakat dalam Pengolahan Minyak Jelantah Menjadi Sabun Cuci Serbaguna di Kelurahan Mulyaharja, Kota Bogor Wiranda Intan Suri; Beata Ratnawati; Emil Wahdi; Yudith Vega Paramitadevi; Andini Tribuana Tunggadewi; Luvy Dellarosa; Dimas Ardi Prasetya; Miesriany Hidiya; Septian Fauzi Dwi Saputra; Nurul Jannah
Lebah Vol. 19 No. 3 (2026): January: Pengabdian
Publisher : IHSA Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/lebah.v19i3.488

Abstract

Permasalahan pengelolaan sampah menjadi isu yang muncul di masyarakat Kelurahan Mulyaharja, Kota Bogor. Salah satu permasalahan yang ditemukan adalah pengelolaan minyak jelantah yang belum optimal. Sebagian besar masyarakat masih membuang minyak jelantah ke saluran pembuangan air, akibatnya saluran pembuangan air dapat tersumbat dan lingkungan menjadi tercemar. Banyak masyarakat belum mengetahui dampak negatif dari tidak mengolah sampah seperti minyak jelantah. Sehingga diperlukan kegiatan edukasi dan pelatihan bagi masyarakat mengenai pengolahan minyak jelantah menjadi produk yang bermanfaat seperti sabun cuci serbaguna yang dapat dimanfaatkan untuk sabun cuci piring dan pembersih noda serbaguna pada pakaian, kain, lap pel, dan serbet. Melalui kegiatan ini, masyarakat diharapkan dapat memahami dampak negatif dari membuang minyak jelantah ke saluran pembuangan air dan juga mampu mempraktikkan pengolahan minyak jelantah menjadi sabun secara mandiri di rumah masing-masing secara berkelanjutan. Peningkatan keterampilan masyarakat dalam mengolah sampah dapat berkontribusi dalam mengurangi jumlah sampah rumah tangga yang belum terkelola dan dapat menghasilkan produk sabun cuci sebagai pembersih yang lebih ramah lingkungan. Kegiatan ini berpotensi membuka peluang usaha bagi masyarakat untuk memproduksi dan memasarkan sabun cuci serbaguna secara mandiri. Selain dapat meningkatkan peluang dalam peningkatan pendapatan bagi masyarakat, kegiatan ini juga dapat mendukung penerapan ekonomi sirkular, dimana sampah diolah menjadi produk bernilai guna
Co-Authors Andini Tribuana Tunggadewi, Andini Tribuana Beata Ratnawati Budi Indra Setiawan Chusnul Arif Emil Wahdi Luvy Dellarosa Masaru Mizoguchi Miesriany Hidiya Nurul Jannah Paramitadevi, Yudith Vega Prasetya, Dimas Ardi Roh Santoso Budi Waspodo Wiranda Intan Suri