Claim Missing Document
Check
Articles

ANALISIS KESESUAIAN LAHAN UNTUK KAWASAN PERMUKIMAN DI KECAMATAN DAU BERDASARKAN ARAHAN RTRW KABUPATEN MALANG TAHUN 2010-2030 Kresnajaya, Amin; Taryana, Didik
Jurnal Tanah dan Sumberdaya Lahan Vol. 11 No. 1 (2024)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2024.011.1.12

Abstract

Dau Sub-district is one of the sub-districts in Malang Regency that functions as a settlement development due to the urban development orientation of Malang City. This research aimed to assess the suitability of settlement land in existing conditions and based on the direction of the Malang District RTRW 2010-2030. This research was conducted using a GIS-based process with the AHP weighting method. The AHP parameters consisted of slope, rainfall, COLE index, land movement vulnerability, flood vulnerability, land use, and distance from roads. AHP processing was carried out using Expert Choice 11 software. The land suitability of Dau Sub-district settlements obtained results: S1 class covering 37,12%; S2 class 26,05%; S3 class 16,48%; N1 class 16,32%; and N2 class 4,03% of the study area. Land suitability for settlements in Dau Sub-district based on the 2010-2030 Malang Regency RTRW obtained results: S1 class covers 39,96%; S2 class 47,08%; S3 class 8,23%; N1 class 4,55%; and N2 class 0.18% of the research area. Referring to the RTRW map with existing conditions, the development of residential land has deviated by 39.25%. Areas with classes S1 and S2, which are suitable classes for the development of residential areas, dominate with an even distribution across all villages in Dau Sub-district. The main inhibiting factors affecting the suitability value are slope and disaster vulnerability.
Water Quality of Unconfined Aquifer in Universitas Negeri Malang Following the Drinking Water Quality Standard of Indonesian Ministry of Health Utaya, Sugeng; Taryana, Didik; Mashitoh, Ferryati; Arinta, Dicky; Prasad, Ravinesh Rohit
Tunas Geografi Vol. 13 No. 1 (2024): JURNAL TUNAS GEOGRAFI
Publisher : Department of Geography Education, Faculty of Social Sciences, Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/tgeo.v13i1.53219

Abstract

Abstract                                                             The quality of groundwater is naturally determined by water-bearing rock characteristics. However, the progression of civilian activities also negatively affects the groundwater quality. Therefore, this study aims to assess groundwater's physical, chemical, and biological characteristics in Indonesia's Universitas Negeri Malang (UM) campus area and evaluate its compliance with drinking water quality standards, particularly the Class A standard. A comparative descriptive strategy was utilized in the study by involving groundwater in the campus area of UM. The focus of the research is water quality in unconfined aquifers. Through purposive sampling, 12 wells were selected to ensure appropriate spatial dispersion. Water samples were collected in sample bottles and tested for physical, biological, and chemical properties. The Perum Jasa Tirta I Malang carried out these water quality tests. Water quality data were analyzed qualitatively, descriptively, and comparatively. This study concludes that (1) the groundwater on the UM campus generally meets the physical criteria for drinking water quality standards; (2) the chemical quality of the groundwater on the UM campus still satisfies the drinking water quality standards; and (3) biologically, the free groundwater on the UM campus fails to meet drinking water quality standards. The novelty of this research is that the biggest threat to the quality of free groundwater in the campus area is bacterial contamination from sanitation activities. Accordingly, it is recommended that groundwater is boiled before being utilized for drinking water purposes to neutralize the E. coli bacteria present in all well water samples.Keywords: Water Quality of Unconfined Aquifer; The Drinking Water; Quality Standard
HEC-RAS 2D Flood Modeling of Bango River: Developing Contextual Spatial Learning Media for Disaster Mitigation Hanafi, Abdillah; Taryana, Didik; Lailatur, Rahmi
Future Space: Studies in Geo-Education Vol. 3 No. 1 (2026): Future Space: Studies in Geo-Education
Publisher : CV Bumi Spasial

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69877/fssge.v3i1.104

Abstract

Geography education plays a pivotal role in building student resilience against disasters, yet learning materials often lack local contextualization. The Bango River in Malang City, which faces flooding every rainy season, presents a critical real-world context for such learning. This study focuses on processing hydrological data to create high-accuracy visualization models using a 2D hydraulic simulation in the HEC-RAS program. The discharge data used in this study was obtained from the calculation of the Synthetic Unit Hydrograph (HSS) Gama 1 method. The results of the hydrograph calculation served as input data for the inundation modeling. The peak discharge from the calculation of the HSS Gama 1 method obtained a value of 29.5825 m³/second. The modeling results show information about the affected buildings, the depth of flooding, and the extent of flooding around Pandanwangi Village. The simulation results indicate that for the 100-year return period, the total inundated area reaches 109.06 hectares. Beyond technical mitigation, these high-resolution inundation maps serve as crucial learning resources to enhance students' spatial thinking and disaster preparedness in local geography curricula. To mitigate future losses, appropriate anticipatory measures must be taken, including the integration of these spatial models into geography education to foster disaster-literate citizens.