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All Journal Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa Jurnal Sains Teknologi dan Lingkungan (JSTL) JMM (Jurnal Masyarakat Mandiri) Jurnal Pengabdian Magister Pendidikan IPA GANEC SWARA Jurnal Ilmiah Rekayasa Sipil Prosiding Seminar Nasional Pengabdian Kepada Masyarakat Media Bina Ilmiah Jurnal Pepadu PORTAL ABDIMAS
I Wayan Yasa
Fakultas Teknik, Universitas Mataram
Religion Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Public Health Social Sciences Other

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Pengaruh Sistem Drainase Berwawasan Lingkungan terhadap Debit Limpasan pada Daerah Penyangga Kota Mataram : The Effect of an Environmentally Drainage System on Runoff Discharge in the Buffer Area of Mataram City Muh Bagus Budianto; I Wayan Yasa; Agustono Setiawan; Hartana Hartana
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 3 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v9i3.557

Abstract

Mataram as the capital of West Nusa Tenggara Province has attracted people to live in it. The small city of Mataram makes the surrounding area a buffer area for rapid development. This condition can be seen from the increase in housing around Mataram City. This increase in housing area causes a reduction in water catchment areas. So during the rainy season there is an increase in runoff. The aim of the research is to determine the effect of an environmentally friendly drainage system on the amount of runoff discharge. The data required is land use data, rainfall, location maps and soil data. Rainfall data is used for Intensity Duration Frequency (IDF) analysis. IDF curves and land use data are used for runoff discharge analysis. Soil data is used to determine permeability which is used to determine of the discharge of infiltration well. Next, analyze the effectiveness of infiltration wells as an environmentally friendly drainage system. The results of the research show that there has been an increase in residential area over the last 10 years by 58% in Labuapi District, the southern part of Mataram City, 25% in Lingsar District and 29% in Gunungsari District, which is in the northern part of Mataram City. Changes in land use resulted in an increase in runoff discharge of 21% in Labuapi District, 8% in Lingsar District and 15% in Gunungsari District. An infiltration well with a diameter of 1 m and a depth of 1 m can absorb 1.13 m3 of water in the southern part and 1.21 m3 in the northern part of Mataram City. If every 100 m2 of residential area there is one infiltration well, then the effectiveness of the infiltration well in reducing flood runoff is 17.71% in Labuapi District, 15.61% in Lingsar District and 23.35% in Gunungsari District.
KARAKTERISTIK PENYIMPANAN LENGAS TANAH OPTIMUM PADA SISTEM JARINGAN IRIGASI TETES PIPA PVC DENGAN EMITTER 4LT/JAM I DEWA GEDE JAYA NEGARA; ANID SUPRIYADI; DEWANDHA MAS AGASTYA; HERI SULISTIYONO; I WAYAN YASA
GANEC SWARA Vol 18, No 2 (2024): Juni 2024
Publisher : Universitas Mahasaraswati K. Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v18i2.873

Abstract

Soil moisture is the most important part of irrigation activities, because it is the result achieved by providing irrigation on a particular land. Likewise, with the application of drip irrigation, soil moisture is also the purpose of irrigation in the planting medium. In multilevel drip irrigation sistems, the potential for soil moisture produced by the irrigation sistem is very important to pay attention to, because the size of the moisture that can be provided will affect the scheduling of the drip irrigation provided. And therefore the ability of an irrigation sistem to provide optimum soil moisture in a particular medium deserves attention, before the sistem is applied to farming activities. For this reason, this test aims to determine the ability to provide soil moisture in a drip irrigation sistem that uses a 4 liter/hour emitter in a 4-tiered drip irrigation network, a polybag planting medium and an irrigation duration of 5 minutes to 20 minutes. The test data analyzed is irrigation and soil moisture distribution data, then the results of the analysis are presented in tabular form and discussed and conclusions are drawn. The test results show that the distribution of drip irrigation water occurs evenly with the optimal application of 41% moisture, and with the application of additional soil moisture of around 6% -7% for an irrigation duration of 20 minutes. The daily decrease in soil moisture that occurred during the three days of testing was found to be around 2% as a result of evaporation
PENGENDALIAN BANJIR SUNGAI BENGKANG UNTUK MENDUKUNG KAWASAN EKONOMI KHUSUS MANDALIKA DEWANDHA MAS AGASTYA; I WAYAN YASA; HUMAIROH SAIDAH; MUH BAGUS BUDIANTO; I DEWA GEDE JAYANEGARA
GANEC SWARA Vol 18, No 4 (2024): Desember 2024
Publisher : Universitas Mahasaraswati K. Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v18i4.1110

Abstract

Changes in land use that have occurred over a period of several years in the Kuta area have resulted in a lack of water catchment areas. The impacts caused by the lack of catchment areas are flooding and reduced water quality in rivers. The flood disaster in the Bengkang River caused damage to bridge infrastructure and people’s homes. The Bengkang river basin is divided into 3 sub – basins with a total area of 10,45 km2. Based on the results of the design flood analysis using the Nakayasu synthetic unit hydrograph method, the largest flood discharge value was obtained, namely 32,859 m3/second for a return period of 25 years. Hydraulic modeling was carried out to determine the water level and the ability of the river section to receive flow using HEC-RAS 6.1 software. Based on the simulation results with a return period of 5 years, it is known that flooding occurs in the middle and lower reaches of the Bengkang River, so structural mitigation is needed, namely normalization and repair of embankments. A 25-year return period flow simulation was carried out using a cross – section of the channel plan and no runoff was obtained in the Bengkang River.
KESERAGAMAN DAN PANCARAN IRIGASI PIPA PERFORASI PADA BERBAGAI KEMIRINGAN PIPA TRANSMISI I Dewa Gede Jaya Negara; Humairo Saidah; I Wayan Yasa; Adhitya Halim .P
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa Vol. 10 No. 1 (2021)
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.10.1.2513.142-157

Abstract

The potential of hilly dry land needs to be developed for limited land farming to have an equal distribution of food security in various potential areas. Many existing drylands, especially in hilly and sloping areas, have not been managed optimally for agriculture due to limited support for practical irrigation techniques. Utilizing differences in existing land elevation is a potential that can be exploited by irrigation techniques that require water pressure. The perforated pipe system irrigation technique has similarities to the mini sprinkler system because it uses water pressure, and it is very possible to be applied to sloped land conditions, but the ability of the perforation system needs to be known further so that it can be used for practical irrigation. For this reason, it is necessary to test the perforated irrigation system with certain variations of the slope of the beam range and uniformity, so that later it can be used as an initial reference. The test model uses a water source from a tendon as high as 3.7 m and with a tank capacity of ± 200 liters. The diameter of the transmission pipe is ½ inch with a length of 2.55 meters, and the lateral pipe as a perforation pipe with a 3mm hole consists of 3 pipes with a pipe length of 4 meters with a diameter of 1/2 inch and the distance between the holes of the perforation pipe is 60 cm. The test was carried out on 4 variations of the slope of 10º, 20º, 30º, and 40º with 4 variations of head 1 = 2.855 m, head 2 = 2.35 m, head 3 = 1.85 m, and head 4 = 1.30 m. Based on the research results, it shows that the greater the slope of the transmission pipe, the higher the head will be. The uniformity of the perforation irrigation was getting smaller the larger the slope with a minimum value of 85% and the highest being 91%. A large perforation beam is obtained at transmission slopes of 20º and 30º, namely 2.66 m and 2.40 m.
ANALISIS PENGARUH VARIASI JARAK DAN TINGGI STIK SPRINKLER TERHADAP KINERJA IRIGASI PADA LUAS LAHAN TERBATAS I Dewa Gede Jaya Negara; Syamsul Hidayat; I Wayan Yasa; Ni Luh Ayu Aprilianti
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa Vol. 10 No. 2 (2021)
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.10.2.3398.350-360

Abstract

The conversion of agricultural land in urban areas has resulted in increasingly narrow agricultural land and many irrigation networks are not functioning. This has resulted in many isolated lands that cannot even be served by irrigation, so that the alternative source of agricultural water is local shallow ground well water. With the potential of water sources and limited land area, farming is expected to utilize water efficiently. Small sprinkler irrigation systems such as the 24D Netafim on the market, are expected to be an alternative in providing irrigation and for that it is necessary to test the ability of the irrigation system on the irrigation radius and its uniformity at a duration of 15 minutes. The test results showed that the irrigation uniformity was above 85% at the distance between sprinklers 4.5 m, 5 m and 5.5 m and 6 m with a stick height of 0.5 m and 0.75 m. For stick heights of 1.0 m and 1.25 m at the same sprinkler distance, the uniformity coefficient is less than 85%. While the optimal irrigation radius obtained at a sprinkler distance of 4.5 m, 5 m and 5.5 m is an average of 5.6 m.
Co-Authors Abdul Muaz Ghazali Adhitya Halim .P Agus Suroso Agus Suroso AGUSTONO SETIAWAN Agustono Setiawan Akmaluddin Akmaluddin Anid Supriyadi Anid Supriyadi Anid Supriyadi Anid Supriyadi ANID SUPRIYADI ANNISA HUMAYRA DIRGANTARA Apollonius Monsart Aryani Rofaida ATAS PRACOYO Atas Pracoyo Devi Suryani Putri DEWANDHA MAS AGASTYA DEWANDHA MAS AGASTYA DIANA PUSPITA DEWI Didi S. Agustawijaya EKO PRADJOKO Ery Setiawan ERY SETIAWAN ERY SETIAWAN Fika Septina Pangaribuan Giri Putra IB Hartana Hartana Hartana Hartana Hartana Hartana Hartana HARTANA HARTANA Hasyim, Hasyim Heri Sulistiyono Heri Sulistiyono Heri Sulistiyono Heri Sulistiyono HERI SULISTYONO Hidayat, Syamsul Humairoh Saidah I B Giri Putra I B GIRI PUTRA I D G JAYA NEGARA I Dewa Gede Jaya Negara I DEWA GEDE JAYA NEGARA I Dewa Gede Jaya Negara I DEWA GEDE JAYA NEGARA I DEWA GEDE JAYA NEGERA I DEWA GEDE JAYANEGARA I Kade Wiratama I Nyoman Merdana I Nyoman Merdana I Wayan Joniarta I Wayan Sugiartha I.D.G Jayanegara Ike Puspasari Ismayanti Ismayanti Jauhar Fajrin Jurnal Pepadu Karyawan, I Dewa Made Alit Lalu Dwiki Axela Andriawan LILIK HANIFAH Lilik Hanifah Lilik Hanifah Linda Asnawati Lulu Lutfiati M R. Sepriadi M. Abbil Pratama M. BAGUS BUDIANTO Made Mahendra Mudji Wahyud MUH BAGUS BUDIANTO Muh Bagus Budianto Muh. Bagus Budianto Ni Luh Ayu Aprilianti Ni Putu Ira Sintia Kurnianti Rudy Putera Kurniawan Saadi Y Salehudin Salehudin Salehudin Salehudin SASMITO SOEKARNO Suparjo Suparjo Suryawan Murtiadi Tia Ardiani Wirahman W Yusril Y Yusron Saadi