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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.
Utilization of Geospatial Technology and WebGIS in Disaster Risk Analysis of Mount Merapi Lava Flow Ananda Rianti Dewi; Didik Taryana
Future Space: Studies in Geo-Education Vol. 3 No. 2 (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.v3i2.117

Abstract

While Mount Merapi's high eruptive activity poses severe rain lahar threats, there remains a critical gap in integrating comprehensive spatial risk assessments into accessible geo-education frameworks. This study addresses this void by evaluating the risk levels of rain lahar disasters to support spatial-based mitigation learning. The high activity of Mount Merapi has various potential eruption hazards, one of which is the danger of lava flows that can occur at any time and threaten the safety of the surrounding community. Therefore, this study aims to examine the level of risk of lava flow disasters on Mount Merapi. The spatial data and WebGIS platform generated from this study are specifically designed to enhance students' geospatial literacy and formulate place-based disaster preparedness education for local communities in high-risk zones. This research employs a quantitative spatial modeling approach utilizing Weighted Overlay Analysis and Spatial Multi-Criteria Evaluation (SMCE) within a Geographic Information Systems (GIS) framework. The data used is in the form of secondary data collected through literature study activities on various sources. Data processing techniques are used, namely remote sensing and geographic information systems, while in data analysis, risk calculation equations are used according to the Head of BNPB Regulation Number 2 of 2012. Based on the results of the study, it is known that the risk level of lava flow disasters is high in Srumbung District, Muntilan District, and Salam District. Efforts that can be made to respond to the high level of risk are to reduce the level of vulnerability through improving health facilities, education, evacuation, economic guarantees and mitigation systems; and increasing capacity through optimizing cooperation and coordination between parties.
The Effect of the Guided Inquiry Learning Model on Spatial Thinking Skills and Problem Solving Abilities of Geography Education Students at Tadulako University Ali, Zaenudin; Bachri, Syamsul; Taryana, Didik
PAEDAGOGIA Vol 29, No 1 (2026): PAEDAGOGIA Jilid 29 No 1 (2026)
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/paedagogia.v29i1.114684

Abstract

The Guided Inquiry Learning Model emphasizes students’ active engagement in constructing knowledge through a systematic investigation process with instructor support. This study aimed to examine the effect of the Guided Inquiry learning model on the spatial thinking skills and problem solving abilities of Geography Education students in the Geographic Information Systems (GIS) course at the Geography Education Study Program, Tadulako University. The study employed a quasi-experimental design with a pretest posttest control group. Two groups were involved: an experimental group taught using the Guided Inquiry model and a control group taught using conventional instruction. Spatial thinking skills and problem-solving abilities were measured using essay tests that had been validated for reliability and validity. Data were analyzed through normality and homogeneity tests, followed by an Independent Samples t-test using SPSS 25. The results indicated that the experimental group achieved higher posttest mean scores in both spatial thinking skills and problem solving abilities compared to the control group. Statistical analysis showed a significant difference in posttest spatial thinking scores between the experimental and control groups (p < 0.05), as well as a significant difference in problem-solving ability scores (p < 0.05). Furthermore, normalized gain analysis indicated that the experimental group achieved moderate to high gains in both variables, while the control group demonstrated low to moderate gains. These results suggest that the Guided Inquiry learning model is more effective than conventional instruction in improving spatial thinking skills and problem-solving abilities in the Geographic Information Systems course.