bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preface: The 6th International Conference on Environmental Resources Management (ICERM) 2024
Authors: Mardiatno Djati , Das Sayantan , Hasegawa Takeshi , Triyanti Annisa , Lin Tsung-Yi , Melati Dian Nuraini , Moatty Anabelle , Htun Kyaw Zaya 
Published: February 2025

Anthropogenic pressure and climate change are the main issues of environmental degradation, posing significant challenges to sustainable landscape [1,2]. These issues are recognized as major global risks with long-lasting consequences [3]. Landscape management is an integrated approach that may be helpful to address these issues by combining policies and practices to address environmental degradation and promote sustainable land use planning [4]. This approach plays an important role in achieving sustainable livelihoods by integrating multiple objectives such as ecological, economic and social [5,6]. Proper landscape management can lead to numerous ecological benefits, including improved land restoration, increased forest cover, enhanced ecosystem services, and maintain the biodiversity [5,6,7]. In the economic and social context, land management can be beneficial for promoting food security, reducing vulnerability to climate change, and improving welfare [5,6,7].
Department of Environmental Geography, the Faculty of Geography Universitas Gadjah Mada, has a long history of conducting research on environmental management. The concept of sustainable land management aligns with the department’s research framework, which emphasizes the analysis of land, water, social, and economic factors to improve population welfare and reduce risk. To address current issues and discuss efforts related to sustainable land management, the department is organizing the 6th International Conference on Environmental Resources Management (ICERM) to showcase the latest scientific advancements.
List of Conference Committee is available in this pdf.
Clustering Of Stunting Prevalence with Gender Equality in Households Index and Socio-Demographic Variables In Regency/Cities Of Bali, West Nusa Tenggara And East Nusa Tenggara Provinces
Authors: Yuhan Risni Julaeni , Kutanegara Pande Made , Budiani Sri Rahayu 
Published: February 2025

Abstract
The issue of stunting is a primary focus of efforts to enhance the quality of human resources. The objective of the present study is to construct a gender equality index within households by grouping them according to the prevalence of stunting and other social indicators in the regencies/cities of Bali, West Nusa Tenggara, and East Nusa Tenggara provinces. The methodology used is based on the structural equation modelling partial least squares (SEM-PLS) approach and the Fuzzy C-Means (FCM) clustering algorithm, which were employed in the 2017 Indonesia Demographic and Health Survey (IDHS), the 2021 Indonesia Nutritional Status Survey, and the data published by the Statistics Indonesia (BPS). The province of Bali has the highest average Gender Equality Household Index score. The index size for low stunting prevalence clusters is higher than for high stunting prevalence clusters. The results indicated that regencies/cities with a high prevalence of stunting exhibited poor environmental sanitation conditions and lower Human Development Index (HDI) and Gender Equality Index (GEI) scores. Concurrently, there was a notable exclusive breastfeeding and low birth weight (LBW) prevalence. The formulation of this later can facilitate stakeholders in developing a roadmap to accelerate stunting control.
Community involvement in ecosystem-based disaster risk reduction: a scoping review to guide assessment metrics
Authors: van Onselen V.M. , Ota M. , Pratiwi E.S. , Lin W.J. , Lin T.-Y. 
Published: February 2025

Abstract
In response to climate change and rising hazard risks, Ecosystem-based Disaster Risk Reduction (Eco-DRR), a type of Nature-based Solution (NbS), has been globally adopted for its benefits in enhancing ecosystem resilience and reducing disaster risks. Community involvement has proven to be a significant factor in the effectiveness of Eco-DRR projects. A scoping review has been conducted to identify main research gaps in our understanding of community-based approaches in Eco-DRR. Main definitions of community-based strategies in Eco-DRR projects are summarized and the Arksey and O’Malley framework was utilized to identify key themes and patterns that influence the success of community involvement in Eco-DRR projects. The findings culminate in the development of a quantitative metric designed to assess community participation in these initiatives. This review highlights that Eco-DRR projects often lack strong stakeholder collaboration and effective bottom-up approaches. Additionally, the integration of traditional and local knowledge, especially from women, is frequently overlooked, resulting in a loss of insights, gender inequality, and reduced community engagement. Recommendations and a new assessment framework are provided to address the identified research gaps and barriers to community engagement, with the aim of guiding both existing and new projects toward more successful outcomes.
Indicating Water Purification Ecosystem Service through Water Quality Assessment in Jetis Suruh Artificial Retention Pond, Sleman Regency
Authors: Suprayogi S , Budiman S , Setiacahyandari H K 
Published: February 2025

Abstract
Freshwater ecosystem is an important need for humans. However, its availability is limited. Artificial retention pond as a freshwater ecosystem provides various ecosystem services including water purification. This study aimed to assess the water purification services in Jetis Suruh Artificial Retention Pond by comparing the water quality that enters the artificial retention pond and those that do not. Primary data were obtained from field surveys and water sampling using 5 parameters (pH, BOD, COD, nitrate, and phosphate). The water samples were obtained from surface of the pond or channel. The total sample used in this research is 8 samples and divided into two water flow systems. The results show that water quality in Jetis Suruh Artificial Retention Pond from each parameter show that these waters nearly still meet the requirements of class II water quality standards in Indonesia. The ranking results indicate that the Jetis Suruh Artificial Retention Pond has a capability in water purification as an ecosystem service. Unlike the branch channels (S1, S2, and S3) with uniform conditions and no significant changes, the Jetis Suruh Artificial Retention Pond improves water quality in S5, S6, and S7 (ranked first and second) from the poorest water quality in S4. The improvement is attributed to the pond’s retention process, allowing aeration, sunlight penetration, and sedimentation of organic matter.
Characteristic of The Recent Product of Kawah Ijen: Insight from Componentry, Shape Analysis, and Bulk-Rock Geochemistry
Authors: Suhartono Muhammad Alsamtu Tita Sabila Pratama , Latief Gammanda Adhny El Zamzamy , Priyana Pandu Eka , Agustiningtyas Lestari , Jonathan Andre 
Published: February 2025

Abstract
Kawah Ijen is an active volcano located in Banyuwangi regency and Situbondo Regency, Indonesia. The volcano is part of a famous volcanic region called Ijen Volcanic Complex (IVC), which attracts tourists year long. As human activity thrives, the region possesses a high risk of volcanic disaster. Therefore, volcanology study is necessary as a guide for disaster mitigation strategy. We study one of the youngest eruptive products of Kawah Ijen located at the summit region in order to understand the characteristics of the latest eruptive mechanism. Thirteen tephra layers of volcanic product were recorded during fieldwork. Using the Walker (1971)’s plot, we identified that all tephra layers corresponds to pyroclastic fall deposits. Shape analysis reveals that the product is round shaped, a typical result from phreatomagmatic eruptions. This idea is further confirmed by componentry analysis which shows that all layers are dominated by lithic (non-juveniles). In addition, whole rock XRF geochemistry analysis shows that the magma is sourced from Intra Caldera (IC) group as shown by geochemistry comparison with the previous study by Handley (2007). Moreover, the magma belongs to andesite, with SiO2 content around 60-62 wt%. It should be noted that many andesitic volcanoes worldwide can produce VEI >3 eruptions. Therefore, although the recent historical eruptions of Kawah Ijen is dominated by VEI 1-2 eruptions, a mitigation scenario of a larger eruption scale should be prepared. With the assumption that Kawah Ijen would erupts similarly as Zao Volcano in Japan (VEI 3-4), a 50 cm thick layers of tephra could be deposited within 10 km radius. The deposit could damage residential buildings nearby where only 30 cm thick of water saturated tephra is needed to cause roof collapse.
Flash Floods Impact in the Upper Citarum Watershed: A Hydrological and Hydraulic Simulation Approach
Authors: Sapan E G A , Susanti W D , Santosa B H , Wardhani F A , Widiatmoko N , Yuvhenmindo M R , Ridwansyah I , Triwisesa E , Pravitasari A E 
Published: February 2025

Abstract
Flash floods are a type of disaster caused by extreme rainfall, steep topography, soil and geological features, and changes in land use. This study evaluates the potential impact of flash floods in the Ciguntur Sub-watershed, which is part of the Upper Citarum Watershed, using an integrated hydrological and hydraulic simulation approach as well as utilizing satellite precipitation data, rain gauge data, digital elevation model, watershed characteristics, and curve number grids. This study simulates hydrological flow using HEC-HMS and performs hydraulic analysis using HEC-RAS. The simulation results indicate that the March 20, 2023 rainfall event resulting in flow hydrographs with late-run satellite precipitation aligns more closely with the actual event. The HEC-RAS thorough RAS Mapper revealed a flash flood-impacted area along the main river. The study underscores the importance of collecting observed data to improve model accuracy and strengthen disaster mitigation while also emphasizing that analyzing debris load features can make future flash flood research more comprehensive.
Analysis of Water Quality and Carrying Capacity in Bangka Tengah Regency, Indonesia: A Case Study of Sungai Selan and Lubuk Besar Districts
Authors: Yusri Aby Ridho K , Muhamad Rosyid P , Muta’ali Luthfi 
Published: February 2025

Abstract
Water resources constitute a critical natural asset, exerting a significant influence on the pace and extent of societal and economic progress. (Zhao, 2024). Population growth and land-use changes have further influenced the demand for clean water. Human activities have also contributed to the increasing demand for clean water. Clean water has become a problem in Bangka Tengah Regency due to land-use changes and population growth. One of the problems with clean water in Bangka Selatan Regency is caused by mining activities, especially tin mining. The status of water carrying capacity is determined through a quantitative approach by calculating the difference and ratio between the availability and demand for each water ecosystem service in Lubuk Besar and Sungai Selan Districts. If the demand is higher and the availability is lower in Bangka Tengah Regency, it can be assumed that the region is experiencing a water deficit; the opposite is also true. The determination of this status is closely related to the concept of a multi-scale grid system that considers geodetic datum, coordinate system, origin of the multi-scale grid coordinate system, grid resolution, and grid numbering system. This multi-scale grid system is utilized for Indonesian environmental data. The origin is located at the bottom left corner, serving as the starting point for grid numbers in the Indonesian multi-scale grid system. Each grid is assigned a grid number to identify each cell in the multi-scale grid system.The analysis of carrying capacity and supporting capacity in Bangka Tengah Regency, particularly in Lubuk Besar and Sungai Selan Districts, indicates that water availability in both districts is still abundant. However, the utilization of this water requires some form of treatment. This is because the quality of river water in Bangka Tengah Regency is generally dominated by a low level of pollution.
Aerial Photography using Small Unmanned Aircraft for Night Activity Data Acquisition
Authors: Widartono B.S. , Sasongko R. , Nasrulloh M.F. , Bone M.N.A.P.R. 
Published: February 2025

Abstract
Thermal sensors can identify objects that have different temperature conditions from their environment, so that they can distinguish one object from another, although with certain limitations. The method is basically moving the day acquisition process as a reference for the night acquisition process by accommodating all recorded environmental conditions such as existing paths and obstacles. Night aerial photography procedures require some special treatment in acquiring because there are several things that need to be considered, especially to (a) data requirements from thermal sensors; and (b) safety factors for drone flight. Night activities are expected to be obtained from the comparison between night and daytime object temperatures because with visible aerial photographs night activities are less visible. The resulting shooting procedure takes into consideration the shooting time, altitude, and flight path. This research can produce an indication of night activity that will later be used as one of the variables to find out more about night activity.
River pollution in Yogyakarta City
Authors: Purnama I L S , Haq K W , Primacintya V A 
Published: February 2025

Abstract
Water is one of the most important resources to support human life. However, from time to time the problems related to water are getting more complex. In addition to the increasingly limited number, the quality of the water is also decreasing due to pollution. The river is a body of water that is very easily polluted because until now it is still a place for liquid waste disposal for some human activities and its open location. The purpose of this study was to analyze river water pollution in the city of Yogyakarta. For this reason, data collection results from water quality monitoring of the Winongo River, Code River, Manunggal River and Gajahwong River were carried out by the Yogyakarta City Environment Service. Furthermore, a comparative descriptive analysis was carried out, namely by comparing water quality data with quality standards. The parameters compared were Nitrate, BOD, COD and E. coli. In addition, a spatial analysis was also carried out by comparing the level of water pollution from the four rivers. The results showed that all rivers in the city of Yogyakarta have been polluted. In terms of the level of pollution, the Winongo River is the least polluted river because only the Esherichia coli concentration exceeds the quality standard and is polluted by nitrate in the two monitoring allocations in the southern part. The Manunggal River which is the smallest river actually experiences the heaviest pollution. Apart from E. coli, the concentrations of BOD and COD in this river also exceeded the quality standards in all monitoring locations. With the same amount of waste, the factor of the small size of the river is probably the cause of the high level of pollution in this river.
Analysis of The Total Maximum Daily Load of The Buntung River in Ngaglik District, Sleman Regency
Authors: Anggrahini S Q , Fadlillah L N 
Published: February 2025

Abstract
The Buntung Sub-watershed is part of the Winongo Watershed, and the water quality of the Buntung River is influenced by surrounding land use. Data from the Sleman Regency Central Bureau of Statistics indicate significant changes in land use from agricultural land to built-up areas, potentially increasing the pollutant load entering the river. This study aimed to calculate the pollutant load capacity of the Buntung River using the Water Quality Analysis Simulation Program (WASP). Sampling was conducted by dividing the river flow into eight segments. Water quality testing focused on the parameters of Biochemical Oxygen Demand (BOD) and Chemical Oxygen Demand (COD). Additionally, river morphometry and flow discharge measurements were inputted for water quality modeling using the WASP software. The results indicate that the total BOD pollutant load is 44.206 kg/day, while the total COD pollutant load is 657.291 kg/day. The carrying capacity for the total BOD pollutant load is 0.177 kg/day, and for the total COD is 17.457 kg/day. Nearly all segments are unable to accommodate the pollutant load. For BOD, only segments 3 and 5 are able to accommodate the BOD pollutant load, while for COD, only segments 1 and 6 can accommodate the COD pollutant load.
Engineering Geology Characteristics of the Bagong Dam Diversion Tunnel, Trenggalek District, East Java Province of Indonesia
Authors: Indrajid Ganny , Setiawan Hendy 
Published: February 2025

Abstract
Knowing the engineering geological characteristics of the tunnel area is very important to prevent collapse during construction and operational stages. The Bagong Dam diversion tunnel is 480 meters long with a trajectory under the main dam body. During the construction phase, new information was found regarding the lithology and geological structure, therefore it is necessary to update the engineering geological characteristics of the tunnel area. This paper aims to identify the engineering geological characteristics of the tunnel area, including morphological units, lithology, geological structure, X-Ray Diffraction (XRD) testing, and identification of rock mass quality using the Rock Mass Rating (RMR) method. Results indicated that the research area consists of steeply and gentle sloping hills. The tunnel site comprises two main lithologies: calcipulverite limestone and andesite breccia. XRD testing shows that the clay is dominated by smectite mineral at 15.66 A. In addition, alteration of limestone and breccia was also found in surface and subsurface observations based on XRD testing. The tunnel trajectory will pass through limestone with a fair RMR value (43≤RMR ≤57) and andesite breccia with a good RMR value (69≤RMR ≤81). According to results, further studies are needed to consider the most reliable methods during the excavation and installation of support systems of the tunnel.
Tunnel Face Mapping for Empirical Assessment to Determine The Method and Type of Excavation On The Outlet Side of The Budong-Budong Dam Diversion Tunnel
Authors: Wibowo J P , Setiawan H , Karnawati D 
Published: February 2025

Abstract
Determining the method and type of tunnel excavation is important, especially when the tunnel enters the construction phase and there are differences between design and field data. Budong-Budong Dam was designed to use a diversion tunnel, which is currently in the construction phase. This research aims to determine the recommended excavation method and type based on geological data on the outlet side of the diversion tunnel. The methodology used in this research is collecting geological data obtained from surface mapping and tunnel face mapping. The surface condition in the research area consisted of 3 lithological units: Tufa-breccia, Tufa-sandstone, and Silt-cobble deposits. The subsurface condition in the research area observed by face mapping in the Budong-Budong Dam diversion tunnel from the outlet uses the rock mass quality parameters of the RMR and GSI classifications. Based on the RMR classification, the rock mass quality on the outlet side of the diversion tunnel is generally included in the good rock class with an RMR value ranging from 62 to 70. Based on the GSI classification the rock mass on the outlet side of the diversion tunnel is generally classified into the good rock with a GSI value of 70.8. The lithologies on the outlet side of the diversion tunnel comprises of hard and massive tufa-breccia. The RMR classification was used to determine the excavation method, while the GSI classification was used to assess the excavatability of the tunnel. Hence, the recommended excavation method is full-face excavation, and the recommended excavation type based on the excavatability tunnel is blasting.
Identification Of Iron (Fe) and Manganese (Mn) in Shallow Groundwater Potential Using Geographic Information System (Kramat Jati District, East Jakarta)
Authors: Marendra S M P , Yanidar R , Aphirta S , Minarti A , Salsabila P 
Published: February 2025

Abstract
Well water is a source of water for household. However, shallow groundwater with a depth of less than 15 m carries a high risk of contamination. Kramat Jati is one of urban areas in the city of Jakarta where sources of groundwater pollution can come from livestock areas and bad sanitation. from physical indicators of water pollution, shallow groundwater in Kramat Jati District has characteristics that indicate pollution due to the solubility of iron (Fe) and manganese (Mn). This research aims to map the distribution of iron (Fe) and manganese (Mn) pollution in shallow groundwater in Kramat Jati District. Sampling was taken using the Stratified Random Sampling (SRS) method at a radius 250 m, 500 m, and 750 m from the livestock area. The total sample is 20 sampling points. Questionnaires are used to obtain clean water sanitation characteristics. The method used to map the distribution of pollution is the interpolation method with ArcGIS and Surfer software. The results from this analysis were used to create a map that delineates the actual spatial distribution of Fe and Mn in Kramat Jati District. The highest pollution concentration for iron parameters was 3.24 mg/l, and manganese 7.91 mg/l. Interpolation results show that the increase in groundwater concentration is dominant into northern and southern areas of the subdistrict. The main factors that cause pollution come from the distance between septic tank and well being less than <10 meters, and alluvial soil type in this area study. This shows that the groundwater in this area is not suitable as a source of drinking water and sanitation hygiene according to Minister of Health Regulation No. 2 of 2023. Therefore, it is necessary to carry out simple processing using filtration and it is necessary to provide a clean water piping system in this area.
Application of Convergence – Confinement Method in Analysis for Longitudinal Displacements in Rock Tunnel
Authors: Saptono Singgih , Rahman Yulianto M. , Vergiagara Vega 
Published: February 2025

Abstract
The application of convergence-confinement analysis in tunnel engineering serves as a conventional initial approach to evaluate wall movements and devise support frameworks in scenarios involving swelling rock. This analytical technique relies on either a closed-form solution or a finite element method (FEM) utilizing a plane strain numerical model. A crucial component of this analysis is the longitudinal displacement profile (LDP), which is essential for linking the displacements of tunnel walls during the excavation process. The evaluation is performed along the tunnel’s axis. In this research, the LDP formulation proposed by Vlachopoulos and Diederichs (2009) is employed to assess how factors such as the distance supported from the tunnel face (working surface), as well as the spacing of rock bolts—both diametrically and transversely—affect the safety factor and the maximum plastic radius produced during installation. The calculations are premised on the understanding that optimal conditions are influenced by variations in the plastic zone’s size, with larger zones requiring more extended normal excavation distances. Mistakes in applying the LDP can lead to substantial errors in determining the correct distances for installing tunnel support systems, potentially resulting in failures of temporary supports. This paper details the findings obtained from the analytical solutions utilized in this investigation.