bluuebunny/crossref_metadata_2025_split huggingface dataset:
Community Understanding in Responding to Floods in Lake Sipin Periphery (Legok, Jambi City)
Authors: Ramadhan A V , Sunarharum T M 
Published: February 2025

Abstract
The community’s understanding in flood mitigation efforts is crucial, as they are the most affected and possess the best understanding of the conditions they experience. Therefore, understanding this level of comprehension can contribute to reducing the risks and impacts of floods This research aims to measure the level of understanding among residents living around Lake Sipin, Jambi City, and to determine their response to floods. The study employs a quantitative approach to assess and explain community participation in Flood mitigation efforts. Data is collected via a Likert-scale questionnaire and analyzed using SPSS software. The Chi-Square test is specifically used to examine the association between the level of understanding and factors such as age, gender, occupation, and the intensity of flood-related losses. This statistical method allow us to identify whether there are significant relationships between these variables and the residents’ understanding of flood mitigation strategies, providing insights into how different factors influence their flood preparedness and response. The results of the study reveal that age, occupation, and gender do not have a significant association with the level of understanding of Flood mitigation among residents of Legok District. However, the intensity of Flood-related losses does show a significant association with the level of community understanding. This finding suggests that residents who have experienced more severe F	lood impacts are likely to have a greater comprehension of flood mitigation efforts. This insight underscores the importance of addressing the specific experiences of affected individuals to enhance their understanding and preparedness for future floods.
Community response following a major volcanic eruption: the cases of Samalas 1257 and Tambora 1815.
Authors: Malawani Mukhamad Ngainul , Handayani Tiara , Estiono Meru Sigit , Hamdani Agus Jaiz , Abidin Imam Alief Naufal , Pratiwi Dinda 
Published: February 2025

Abstract
The Samalas eruption in 1257 and the Tambora eruption in 1815 are the notable major volcanic eruptions in Indonesia. This paper provides a comparative discussion of the post-eruption responses (emergency, reconstruction, and recovery phases) to these two catastrophic events. During the emergency phase, both Lombok and Sumbawa residents exhibited similar adaptive strategies, including seeking higher ground and relocating to safer areas. Distinct differences emerged during the reconstruction phase. While Lombok’s recovery was hampered by a lack of external food aid, Sumbawa benefited from Dutch intervention, which facilitated the importation of necessary supplies. In terms of recovery and achieving resilience, Lombok took approximately 100 years to fully recover, whereas Tambora saw a more rapid resurgence by 1847, with restored agriculture and livestock conditions. This comparative discussion underscores the importance of understanding historical responses to volcanic eruptions and offers valuable lessons for future generations. Incorporating contemporary geological and socio-economic data into mitigation strategies is essential for managing similar events in the future, not only for high VEI volcanoes but also for those with potential for major eruptions.
Excavation methods and support systems for the Tiga Dihaji Dam intake tunnel in South Sumatera Province, Indonesia, based on the Japan Society of Civil Engineers (JSCE)
Authors: Kusuma Afif Arta , Setiawan Hendy , Akmaluddin  
Published: February 2025

Abstract
This research aims to analyze the rock mass quality based on the Japan Society of Civil Engineers 2007 for the excavation and support systems of the intake tunnel of Tiga Dihaji Dam, South Sumatra Province, Indonesia. The scope of the research includes observing aspects of engineering geology, taking rock samples, laboratory testing, and core drilling analysis. The research results show that the lithology unit at the depth of the tunnel alignment is carbonaceous claystone interbedded with carbonaceous sandstone with rock masses belonging to Category B to Category CII. The recommended excavation is the full-face method with a digging length of 1.2-2.0 m. The recommended support systems are rock bolts, shotcrete, and lining with thickness, dimensions, spacing, and installation area following the provisions based on the rock mass category. Rock bolts with dimensions of 2 m long, curved spacing of 1.2 m, longitudinal spacing of 1.2-1.5 m, and installation areas on the top heading and bench. The thickness of the shotcrete is 5 cm, and the thickness of the lining is 20 cm.
Use of remote sensing and Geographic Information System for mapping drought susceptibility in Boyolali Regency
Authors: Siddiq M S A , Sudaryatno  , Purwanto T H 
Published: February 2025

Abstract
Boyolali Regency is one of the regencies in Central Java that is often hit by drought during the dry season. In 2023, it was recorded that 11 out of 22 total sub-districts experienced drought and received clean water assistance from the Regional Disaster Management Agency (BPBD) of Boyolali Regency. The El Nino phenomenon that hit Indonesia exacerbated the impact of the drought. The study conducted aims to determine and analyze the results of the ability of Landsat 9 imagery in generating information into drought susceptibility parameters and to determine and analyze the spatio-temporal pattern of drought susceptibility in Boyolali Regency in the dry months (April - September) in 2023 based on parameters generated from Landsat 9 processing. The parameters used are NDVI, LST, NDWI, and land use/land cover. Applying a weighted tiered quantitative approach by applying scoring and weighting in each parameter. The study resulted in accuracy between the Landsat 9 image interpretation results and the field conditions using the confusion matrix table. Each parameter produces a different overall accuracy, but not much difference so that it still has a sufficient level of confidence. The resulting drought susceptibility map shows that April, May, and June are dominated by low-moderate drought susceptibility, while July, August, and September are dominated by high-very high drought susceptibility. August is the peak month with a dominance of high drought susceptiblity covering 67741.05 Ha (63% of the total area of Boyolali Regency). The moderate to very high drought susceptibility level is located in the southern, eastern, and northern parts of the regency, while the very low-low drought susceptiblity level is located in the western part of Boyolali Regency.
Estimation of Above and Below Ground Carbon Stock in Baros Mangrove Conservation Area, Bantul Regency – Indonesia
Authors: Nugraini R A , Sekaranom A B 
Published: February 2025

Abstract
Mangroves are vital coastal ecosystems that provide numerous ecological benefits, including carbon sequestration, which plays a crucial role in mitigating climate change. The Baros Mangrove Conservation Area in Bantul Regency is an essential site for studying these valuable ecosystems, given its diverse mangrove species and varying age structures. This study aims to determine the distribution of mangrove species and estimate the above-ground carbon (AGC) and below-ground carbon (BGC) stock values in the Baros Mangrove Conservation Area, Bantul Regency. Data were collected using purposive sampling from four sample plots selected based on species differences, planting age, and site accessibility. Species identification was conducted through high-resolution aerial imagery and field validation. The results indicate that the dominant mangrove species are Avicennia sp. and Rhizophora sp., with the highest AGC found in Plot 2 at 198.14 tons/ha and the highest BGC also in Plot 2 at 121.36 tons/ha. Plot 2, which features the most mature vegetation, shows the highest carbon storage capacity, while Plot 4, dominated by younger mangroves, has the lowest AGC and BGC at 46.05 tons/ha and 40.70 tons/ha, respectively. With a total AGC and BGC carbon stock of 411.32 tons/ha for AGC and 601.28 tons/ha. This study underscores the importance of mangrove conservation and management, particularly in plots with mature vegetation, to maintain significant carbon reserves for climate change mitigation.
Rapid Assessment of Spatial Variation of Carbon Sequestration in Coastal Landscapes of Bantul Regency, Indonesia: Implications for Land Management and Climate Mitigation
Authors: Sekaranom A B , Santosa L W , Musafirah C , Tadubun M R , Nugraini R A 
Published: February 2025

Abstract
This study investigates the spatial variation of carbon sequestration across the coastal area of Bantul Regency – Yogyakarta, Indonesia, based on rapid assessment of carbon sequestration based on land use data. The land use classification is conducted by utilizing unsupervised classification Sentinel-2 classification data. Each land use is assingned carbon sequestration factor obtained from a number of literature studies. The analysis reveals distinct patterns of carbon sequestration linked to varying land use types and vegetation cover. The southern coastal zone exhibits lower carbon sequestration rates, primarily due to the presence of sand dunes, sparse vegetation, and urbanized areas. In contrast, the central region displays moderate to high carbon sequestration, driven by a mix of agricultural activities, such as rice cultivation and dryland farming, interspersed with natural vegetation and managed forests. The eastern region shows significant spatial variation, with pockets of very high carbon sequestration associated with dense forests and well-preserved natural areas. These findings underscore the importance of targeted land management strategies to enhance carbon sequestration, particularly in coastal areas, while optimizing sustainable land use practices in agricultural and forested regions.
The Model of Traffic Congestion Disentangled in Bogor City
Authors: Lestari Nova Dwi , Marwasta Djaka 
Published: February 2025

Abstract
Transportation problems in metropolitan areas are very complicated and complex, including in Bogor City. Population growth increases the number of motorized vehicles which exceeds road capacity, thus triggering traffic jams. Insufficient and integrated infrastructure is also a problem itself. The application of the transit-oriented development (TOD) concept can be one solution to overcome this problem. This research aims to determine existing conditions and the application of the TOD concept to solve transportation problems in the Bogor Station Area. The data used is secondary data originating from government documents and primary data obtained through direct observation in the field and interviews with the government person and academicians. Analysis was carried out using qualitative descriptions and scoring methods to obtain a classification of TOD development. The Bogor Station TOD area is still relatively underdeveloped, especially in walkability and density design parameters. However, in other aspects such as destination of accessibility, distance to transit, and diversity, TOD values and conditions are considered advanced. Even though there is still needs to be improved, the application of TOD has the potential to be a solution to traffic congestion and optimization of transportation modes in the Bogor Station Area. This is because TOD can increase the integration of people, activities, and areas in a development that prioritizes transit and reduces private vehicle use. The use of mixed land areas that are dense, compact and high intensity can make it easier for people to carry out activities in that area only by foot and non-motorized vehicles and can reach other areas using public transportation.
Value Chain Study of Pineapple Agricultural Production in Sempu Village, Ngancar District, Kediri Regency
Authors: Widiastuti Arum Sari , Harini Rika 
Published: February 2025

Abstract
Sempu Village, located in Ngancar Sub-district, Kediri Regency, is one of the key pineapple-producing areas in East Java. The high level of pineapple production in this sub-district not only impacts the local economy but also significantly influences the regional and national levels. Pineapple farming in the area is shaped by various geographical, economic, social, and cultural factors, each presenting unique challenges. As such, understanding the value chain of pineapple farming in Ngancar Sub-district is crucial for identifying potential improvements and development opportunities. This study aims to assess the current state of pineapple farming and analyze the variations in the value chain patterns of pineapple production in Sempu Village. The research employs both quantitative and qualitative methods, with a sample of 70 farmers selected for observation and interviews. The findings reveal that, despite challenges such as limited land, pineapple farming in Sempu Village holds significant potential for supporting farmers’ livelihoods. Farmers engage in diversified farming activities, including the cultivation of other commodities, as a strategy to mitigate risks. While the dominance of middlemen in marketing is a concern, pineapple farmers generally exhibit self-reliance in managing their value chain, which can strengthen their livelihoods.
Study of Environmental Carrying Capacity Based on Ecosystem Services for Ecotourism in Kapanewon Dlingo, Bantul Regency
Authors: Kafafa U , Setiawan M A 
Published: February 2025

Abstract
Kapanewon Dlingo has several potential and unique tourist attractions, both natural and artificial. Environmental characteristics and quality factors are important assets for optimizing ecotourism potential. In addition, it is essential to understand various aspects related to the carrying capacity that can be accommodated and the management strategies needed. One approach to analyzing environmental carrying capacity is through an assessment based on ecotourism ecosystem services. Therefore, the objectives of this research are (1) to examine environmental characteristics, and (2) to assess the conditions of environmental carrying capacity based on ecosystem services for ecotourism in Kapanewon Dlingo. The survey method was employed in this research. The carrying capacity of the environment was assessed through ecoregion and land use weighting based on expert judgment. Weighting was conducted using the Analytical Hierarchy Process (AHP) with the pairwise comparison method. In general, the potential for ecotourism ecosystem services in Kapanewon Dlingo is dominated by the medium class, with a value range of 0.382-0.744. The aesthetic value of ecotourism ecosystem services with high value is found in landscapes that have vegetated/natural land cover and are located in ecoregions with flat topography.
Assessing the Impact of Seawater Intrusion on Groundwater Using Geo-indicators in Padang City
Authors: Charly Vito , Hendrayana Heru , Nait Costandji 
Published: February 2025

Abstract
Padang City is the capital of West Sumatra Province. The geographical condition of Padang City is directly adjacent to the sea. One of the direct negative impacts is the potential for seawater intrusion. Seawater intrusion is a groundwater problem in coastal areas. Based on this, this research was carried out to map groundwater vulnerability zones to seawater intrusion. The method used to determine the zoning of seawater influence distribution is analyzed based on Electrical Conductivity (EC) values and geo-indicators. Analysis of EC values from 54 groundwater samples revealed that 2 samples were classified as moderately saline, and 1 sample was classified as slightly saline. From the groundwater ion values, two of the three samples showed chloride values >400 mg/L. The comparison of the Cl/HCO3-ratio shows that the 2 samples each have a medium and high influence on seawater. The results of the analysis using Geo-indicators with 6 parameters—Increased Ca concentration, Cl/Br Ratio, Na/Cl Ratio, Ca Enrichment, Simpson Ratio, and BEX—indicate the level of vulnerability to seawater. Based on the geo-indicator method, the level of seawater influence on groundwater in the study area is categorized into three categories: moderate influence, low influence, and unaffected. Moderate influence occurs in the southwestern part of the study area, which experiences a high increase in Cl concentration. Low influence occurs in the central and southeastern parts of the study area, while the coastal area and most of the study area are dominated by zones that are unaffected by seawater.
Preliminary Result of Sea Water Intrusion Identification Based on Electric Conductivity Mapping in Balikpapan Coastal Aquifer Area
Authors: Bhaskara Leorizky , Prakasa Eka Putra Doni , Nait Costandji 
Published: February 2025

Abstract
As the population grows, there will inevitably be an increased demand for water to meet daily life needs, including groundwater usage. Excessive use of groundwater significantly impacts groundwater problems, such as seawater intrusion, where seawater moves inland and contaminates groundwater. This phenomenon commonly occurs in coastal areas. Balikpapan is one city potentially affected by seawater intrusion. In this city, most residents living along the coastal areas rely on groundwater from shallow and deep wells as their source of clean water. The significant increase in groundwater usage in these coastal areas facilitates the easy entry of seawater into groundwater aquifers. This research aimed to investigate early signs of seawater intrusion occurring in the coastal areas of Balikpapan. The investigation measured the electrical conductivity (EC) values of groundwater from 36 shallow wells and 9 deep wells distributed across the research site. The investigation results showed that out of these 45 wells, 21 had an EC value of <700 μS/cm, indicating fresh water; 21 had an EC value of 700 - 2,000 μS/cm, indicating slightly saline groundwater; 2 had an EC value of 2,000 - 10,000 μS/cm, indicating moderately saline groundwater; and 1 had an EC value of 10,000 - 20,000 μS/cm, indicating highly saline groundwater. The distribution of groundwater with high EC values is generally found in the northeastern coastal area of Balikpapan, associated with alluvial deposits with moderate to high aquifer productivity
Developing Sustainable Tourism Based on Geological and Mining Heritage in Indonesia
Authors: Rohaendi Nendi , Fahlevi Setiawan Iwan , Herlinawati  , Budiyono Arif 
Published: February 2025

Abstract
Since there is rapid geopark development, geotourism as sustainable tourism is getting popular in many regions in Indonesia. The development of sustainable tourism based on geological heritage and mining heritage is an alternative for managing mined land. This is because some of the geoparks were originally mining areas. The aim of the research is to study the potential sustainable tourism in three geoparks namely Sawahlunto, Pongkor, and one of UNESCO Global Geopark of Belitung. Mining industries have an important role in economic development in Indonesia such as a source of national and local income, however, the negative impact of mining on land change is considerably. Developing sustainable tourism for mined land area is an alternative approach to managing the area as a post mining program. To reach the goal, tourism potential mapping is carried out, as well as qualitative and quantitative assessment in some geopark areas. The result will become useful information for developing an alternative for post-mining land use. The alternative option for post-mining land use is beneficial since Indonesia will frequently plan and implement mine closure. The development of geopark in terms of conservation will be one of the best options for post mining programs. Nevertheless, we need to carefully assess geopark as alternative of mined land because geopark management is complicated. The preliminary result of the research shows the possibility of developing sustainable tourism based on geological heritage and mining heritage.
Limit Equilibrium Method of Slope Stability Analysis: A Case Study of Outlet Tunnel Portal of Bagong Dam East Java Indonesia
Authors: Digdoyo S K , Indrawan I G B , Hidayat R 
Published: February 2025

Abstract
Bagong Dam, located in Trenggalek Regency, has a diversion tunnel. The diversion tunnel is designed as a horseshoe-type tunnel with a diameter of 4 m and a length of 416 m. Although a general engineering geological investigation has been conducted at the dam site, slope stability has yet to be analyzed. This research seeks to categorize rock masses based on the Geological Strength Index (GSI) and evaluate the stability of the slope at the tunnel outlet using the Bishop Simplified and Morgenstern-Price Limit Equilibrium Methods (LEM), considering scenarios with and without seismic load. The results will determine the appropriate slope for the tunnel outlet portal. The data for the LEM analysis were gathered through surface geological mapping, subsurface core sampling, and laboratory testing of the rock samples. The geological engineering of the Bagong Dam tunnel outlet consists of andesite breccia (fair to good), interbedded sandstone clay (poor to good), and poor-quality limestone. The horizontal seismic load coefficient (kh) at this location is 0.175. LEM analysis shows that the portal slope is stable after excavation according to the design, static load shows a safety factor (Fs) = 2.16 > 1.5 using the Bishop Simplified and also shows a safety factor (Fs) = 2.15 > 1.5 using Morgenstren-Price. Post-seismic load analysis also shows a safety factor (Fs) = 1.94 > 1.1 using the Bishop Simplified and also shows a safety factor (Fs) = 1.89 > 1.1 using Morgenstren-Price. Slope failure does not occur because the safety factor values can be achieved using the original slope design, both with and without seismic load.
Identification of Confined Aquifer Layers Using the Electrical Logging Method in Artesian Wells in Parepare City, South Sulawesi
Authors: Hatta A A , Ramli M , Bakri H 
Published: February 2025

Abstract
Groundwater utilization in Pare-Pare City has been intensive since 2017 until now. A case study of groundwater exploitation in Pare-pare City shows that there are 3 artesian wells. However, there is still a lack of references regarding the identification of aquifer layers in these 3 wells. An important first step in improving groundwater management is to develop an understanding of the subsurface groundwater system. Geological structures, and climatological conditions are important to study comprehensively to understand the aquifer layer system. The electrical logging measurement method (SP log and resistivity) is a method used to see in detail the vertical rock lithology. The tool used for electrical logging measurements is the Naniura Model NRD112P mini logger. The results of electrical logging show that the lithology of the 3 artesian wells consists of layers of massive and fractured volcanic breccia rock, as well as layers of lapilli tuff. Of the 3 artesian wells observed, the layer of lapilli tuff and breccia, which has a fracture structure, acts as a confined aquifer layer, while the massive volcanic breccia acts as an aquifuge layer. The resistivity value of the tuff layer is 60 - 140 Ωm, while the volcanic breccia layer with a fractured system is 150 - 190 Ωm. The confining layer is a massive volcanic breccia layer with a resistivity value of 210 - 390 Ωm.