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All Journal J-Sil (Jurnal Teknik Sipil dan Lingkungan) MANAJEMEN IKM: Jurnal Manajemen Pengembangan Industri Kecil Menengah Forum Pasca Sarjana Jurnal Ilmu Lingkungan Jurnal Keteknikan Pertanian Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Tataloka Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Hidrosfir Indonesia JURNAL TEKNIK HIDRAULIK JURNAL SUMBER DAYA AIR J-Sil (Jurnal Teknik Sipil dan Lingkungan)
Nora H. Pandjaitan
Departemen Teknik Sipil Dan Lingkungan, IPB University
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Transportation

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Criticality Analysis of Water Catchment Areas in Depok City, West Java Irsyad Syaifudin; Saptomo, Satyanto K; Pandjaitan, Nora H
Jurnal Teknik Sipil dan Lingkungan Vol. 10 No. 1: April 2025
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.10.1.77-86

Abstract

The rapid development of Depok City has led to a high demand for the construction of facilities for housing and commercial areas. This can result in a decrease in water catchment areas, which can cause water shortages and flooding. The purpose of this study was to identify and create a map of water catchment areas using a geographic information system (GIS) and analyze the infiltration rate and cumulative infiltration in Depok City. The method used was spatial data extraction and spatial analysis of the condition of the water catchment area by scoring potential infiltration and actual infiltration. Spatial analysis was also performed by overlapping spatial data for water catchment area zoning. Infiltration measurement using a double-ring infiltrometer based on SNI 7752:2012. Infiltration rate analysis using the Horton model. The mapping results show that Depok City is dominated by slightly critical criteria, covering an area of 15,589.327 ha (77.98%), followed by conditions that are starting to be critical, covering an area of 4,146.347 ha (20.75%), and natural normal conditions, covering an area of 168,515 ha (0.84%). The highest infiltration rate was measured in Cipayung at 0.330 cm/minute, and the lowest was recorded in Cilodong at a rate of only 0.110 cm/minute. The smallest cumulative infiltration value was 15.744 cm/h, and the largest was 51.886 cm/h.
Kebijakan Pengembangan Budidaya Tanaman Bambu untuk Pengelolaan Berkelanjutan DAS Aesesa Flores Noywuli, Nicolaus; Sapei, Asep; H. Pandjaitan, Nora; Eriyatno, Eriyatno
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 9 No 4 (2019): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.9.4.946-959

Abstract

The existence of Aesesa Flores (AF) watershed is very important for people in Ngada and Nagekeo Regency of Flores island. The AF watershed provides water, land use, economic and other environmental services. However, the excessive exploitation is a major threat for the existence of the AF watershed. The degradation of the AF watershed function such as reduction in river debit, increase of critical land, land use change as well as the problem of poverty. The upstream area is intended as a conservation area where Watu Ata nature preservation park is located, the bamboo forest and Bajawa as the capital city of Ngada Regency. The downstream area is not only as capital city of Nageko Regency but also as paddy field area. One of the activity to improve the watershed function is through a comprehensive and sustainable management policy design based on characteristics and carrying capacity of the AF watershed. This research was conducted in April-May 2018 and the the purpose of the study is to analyzed key factors and establishing an alternative for sustainable management policy development of AF watershed using a prospective method. This study using mainly primary data obtained from the seven local experts through the filling of the questionnaire. The result shows that there are 22 attribute factors and it identified as 10 key factors. The main two key factors are bamboo cultivation, processing technology of bamboo, enlargement of bamboo cultivation area and practicing the soil and water conservation technique. The 10 key factors then become input for designing the management policy of AF watershed. Bamboo become the dominant and key factor because bamboo could be developed into biomass energy plant and it serves social, economic and ecological values for the local people of Ngada and Nagekeo Regency. Bamboo cultivation has a good prospect financially for the local people.
Design of Water Source Alternative Based on SWAT Model Simulation Pandjaitan, Nora Herdiana; Afifi, Arif Yusron; Sapei, Asep
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 11 No. 4 (2022): Desember 2022
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v11i4.636-646

Abstract

Water shortage problem was often happened in many places in Indonesia. Water availability is very important not only for domestic needs, but also for other activities particularly for agricultural activities. To solve water shortage problem, this study aimed to design a water source alternative. The rain is a free water source and collecting rain in the small dam or reservoir is one of the effective rainwater harvesting technique that can increase water availability. This research was conducted  at Sekaran Village and the analysis had done using SWAT (Soil and Water Assessment Tools) model.  The planned rainfall and discharge were analysed by 5 years return period to calculate the water  potential for reservoir charging. The results of this study indicated that the location of the reservoir was planned in a forest area with a slope of 8-25%, on coordinates 111º38'11.39"E and 7º6'14.22"S and has a storage volume of 13737 m3. The reservoir has 4356 m2 surface area with a depth of 3 m. Based on the SWAT model simulation, the highest average discharge potential occured in February with a discharge of 0.312 m3/s and the lowest average discharge occured in October with a discharge of 0.044 m3/s. The total volume of potential annual water that can fill the reservoir is 61.166 m3/s per year based on a planned rainfall of 115.38 mm and a planned flood discharge of 2.54 m3/s with a return period of 5 years. The reservoir construction required a cost of  IDR 1,200,747,000. Keywords: Cost, Location, Rainwater Harvesting, Reservoir, SWAT
Spring Water Catchment Building and Water Distribution System for Domestic Needs Pribawanto, Achmad Yopi Suyitno; Pandjaitan, Nora Herdiana; Sutoyo, Sutoyo
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 1 (2024): March 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i1.1-11

Abstract

The population growth implies that the population's need for clean water tend to increase. Clean water availability is not optimal due to geographical factors and discharge reductions during dry season. This research was conducted to design spring water catchment building and water distribution system at Kalikajar Village, Wonosobo. The population data, water demand, and spring discharge were utilized in this research. The population growth was calculated with arithmetic, geometric, exponential, and logistic method. Then water demand was calculated based on SNI 19-6728.1-2002.  The population growth which predictably reaches 5328 people in 2050 will result in increasing clean water demand by 9.68% with domestic water demand of 4.63 L/s. The spring discharge measured at the research location showed an average of 10.80 L/s. Therefore, the spring discharge is able to meet the population needs in the projected year. The spring catchment building was designed with Type B, while three reservoir were designed with the capacity of 7 m3 each. The water distribution is designed with gravity system because the elevation difference between the spring and the village is more than 10 m. The PVC pipeline used diameter of 100 – 150 mm, with total length of 11843 m. The design meets the calculated requirement and could be implemented. Keywords:  Distribution system, Reservoir, Spring water, Hilly areas, Water consumption
Avoiding Flood by Improving Cross-Sectional Capacity through River Normalization Harits, Muzhaffar; Sapei, Asep; Pandjaitan, Nora Herdiana
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 4 (2024): December 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i4.1023-1035

Abstract

Bekasi is one of the regions in Indonesia that often suffer from flooding. To overcome flooding problems in the Bekasi area, the Ciliwung Cisadane River Basin Center has begun a normalization project along the Bekasi River. This research aimed to evaluate the Bekasi River's cross-sectional capacity both before and after normalization. The analysis focused on the section where the Cileungsi and Cikeas rivers converge to the Bekasi weir. In this research, secondary data were employed, such as national digital elevation model data, detailed engineering designs of Bekasi River flood control activities, and rainfall data from the Cibinong Station that covers the period from 2006 to 2020. The result from planned flood discharge with the Nakayasu synthetic unit hydrograph method for a return period of 25 years on the Bekasi River was obtained at 665.81 m3/s. The results of hydraulic analysis before normalization with the HEC-RAS application show that flooding occurred at 102 out of 116 stations, with capacities of river cross-sections ranging from 453.49 m³/s to 665.71 m³/s at these overflow stations. Following the river normalization process, the cross-sectional capacity at all Bekasi River stations can accommodate flood discharge without any instances of overflow.Keywords: Flood, HEC-RAS, Nakayasu, Normalization, Rainfall.
Embung Development for Palm Oil Industry Water Supply Based on Soil Water Assessment Tools Harits, Muzhaffar; Sapei, Asep; Pandjaitan, Nora Herdiana
JURNAL SUMBER DAYA AIR Vol 21, No 2 (2025)
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jsda.v21i2.983

Abstract

The water supply at the IPB Education and Research Garden Jonggolis generally sourced from rainfall. This can lead to water shortage during certain periods, so building a water storage structure such as a small reservoir (embung) is necessary. The embung can provide a more stable water supply by storing rainwater and river inflow. This research aims to design an embung at the IPB Education and Research Garden Jonggol, and to analyze the water balance of the planned embung. This study presents the application of SWAT-based dependable discharge analysis for small-scale industrial reservoirs in tropical regions. The findings support sustainable water management and enhance enhance agro-industrial resilience, particularly in regions dependent on rainfall. The planned embung is designed for the palm oil processing plant with a total water requirement of 8,786 m3 in the dry season. Dependable discharge analysis is conducted using Soil Water Assessment Tool (SWAT), while flood discharge analysis uses the rational method. Embung capacity design is based on water availability, water requirement, sediment volume, and total evaporation. The planned embung will be located at coordinates 107° 2' 10.53" E and 6° 28' 17.60" S. It features a normal water surface area of 7,737.19 m², a normal water depth of 3 m, and a total storage volume of 9,947.76 m³. The design includes essential components such as an overflow channel, an outlet channel, and an embankment. The water balance indicates that the embung will begin filling in February and remain full from March to May. Subsequently, the water balance is expected to repeat its cycle consistently, ensuring that the embung can meet the water demand at the location.
The Strategy to Increase the Production of Freshwater Aquaculture Industry in Pandeglang Regency Nurilmala, Mala; Pandjaitan, Nora H; Viriawan, Triadi Chandra
MANAJEMEN IKM: Jurnal Manajemen Pengembangan Industri Kecil Menengah Vol. 21 No. 1 (2026): Manajemen IKM
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/mikm.20.2.1-10

Abstract

Freshwater aquaculture small and medium enterprises (SMEs) are industrial activities within the fisheries aquaculture sub-sector that focus on freshwater fish farming. The output production from upstream to downstream fishery activities provide opportunities to increase community income and welfare. These activities in the fishery industry contribute economic value that supports equitable development on a regional scale. The aims of research on freshwater aquaculture SMEs are: (1) Identifying and evaluating the production value of regional yields; (2) Evaluating the potential profit through a feasibility study of the aquaculture business; and (3) Formulating strategies for SMEs to increase the production of the freshwater aquaculture industry. Qualitative data was obtained through questionnaires administered to seven expert respondents from the Banten Marine and Fisheries Service (Dinas Kelautan dan Perikanan) and the Pandeglang Fisheries Service (Dinas Perikanan). The formulation of the aquaculture industrial strategy generates by the strengths, weaknesses, opportunities, and threats (SWOT) method that result in strategy which focused on maintaining the quantity, quality, and marketing of product yields based on the increase of freshwater aquaculture SMEs production in the Pandeglang Regency area
Co-Authors - Rohayati . Prastowo . Saprianto Achmad Yopi Suyitno Pribawanto Afifi, Arif Yusron Ahmad Fausan Aida Vitayala S Hubeis Anari, Oktovianus Anggraini Sukmawati Ano Juhana Anthon Monde Arif Yusron Afifi Asep Sapei Atep Hermawan Avazbek Ishbaev Bambang Pramudya Bambang Sumpeno Beniko Kusumagiri Budi I Setiawan Budi Indra Setiawan Dea Evantri Dedi Kusnadi Denny Jatnika Dharma, I Gede Aditya Ekananda, Fahri Elfrida Ratnawati Elphyson T Eriyatno . Erizal , Ervina, Cordelia Fahri Ekananda Fauziah, Kiki Rizky Grace Natalia Grace Natalia Harits, Muzhaffar Harun A. Sume Hendrick Tio P. Tambunan Herlika Asriasuri Hidayat Pawitan I Gede Aditya Dharma Ifah Latifah Irsyad Syaifudin Karunia, Titiek Ujianti Kiki Rizky Fauziah Komar Sumantadinata Kukuh Murtilaksono Lanny Syamsir Leonardi Pratama Lilik B Prasetyo M. Riza Januar M. Yanuar Jawardi Purwanto M. Yanuar Purwanto Mala Nurilmala Maulana Ibrahim Rau Maulana Ibrahim Rau Maulana Ibrahim Rau, Maulana Ibrahim Muhammad Ihsan Muhammad Ihsan Muhammad Raka Qintana Muhammad Syamsun Musa Hubeis Muzhaffar Harits Naik Sinukaban Naswir . Netty Kurniadi Ngudi Aji Jaka Yuwana Nicolaus Noywuli Noywuli, Nicolaus Pande Munthe Pribawanto, Achmad Yopi Suyitno Purwanto, Budi Puty Yousnelly Qintana, Muhammad Raka Rio Caesarion Rizal Syarief Rizal Syarief Roh Santoso Budi Waspodo Said Karim Satyanto Krido Saptomo Soedodo Hardjoamidjojo Subandiyono Subandiyono Suryahadi (Suryahadi) Sutoyo Sutoyo Sutoyo Suwarso Suwarso Titiek Ujianti Karunia Viriawan, Triadi Chandra Wenda, Datina Yanuar Juardi Purwanto Yuli Suharnoto