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Background:Landslides are a disaster that often occurs in hilly areas with high rainfall. The community's lack of knowledge about mitigation increases the risk of losses and casualties. This community service activity aims to improve the knowledge and preparedness of cadres and the community of Pargarutan Dolok Village in facing landslides through mentoring and counseling activities. The activity was carried out on May 25, 2026 in Pargarutan Dolok Village, East Angkola District, South Tapanuli Regency, targeting village cadres and the local community. Methods:The methods used included delivering material, interactive discussions, questions and answers, and distributing leaflets regarding the causes, signs, impacts, and mitigation steps for landslides. Evaluation was carried out through observations of participant participation and their ability to understand the material provided. The activity went well and received active participation from all participants. Results:The results of the observations showed an increase in participants' understanding of the causes, early signs, impacts, and actions that need to be taken before, during, and after a landslide occurs. The enthusiasm of the participants during the discussion also showed an increase in public awareness of the importance of disaster mitigation and preparedness. Conclusion: These findings indicate that landslide preparedness training is effective in increasing the knowledge, awareness, and preparedness of cadres and the community regarding landslide risks. This activity is expected to be the first step in strengthening community capacity and supporting the creation of disaster-resilient villages through ongoing disaster education.

Land-use changes dominated by impervious surfaces in residential areas reduce the natural infiltration capacity of the soil and increase surface runoff, which may lead to flooding and waterlogging. This study aimed to design a rainwater infiltration well system as an effort to reduce surface runoff in Samudera Afroza 3 Housing Estate, Jambi City. A quantitative approach was employed through field surveys, hydrological analysis, soil permeability testing, GIS-based land-use analysis, and infiltration well design in accordance with SNI 8456:2017 and SNI 03-2453-2002 standards. Rainfall analysis was conducted using maximum daily rainfall data from 2014–2023, applying several probability distributions, with the Gumbel distribution identified as the most representative model. The results revealed that the residential area covers 8,104 m², with 91.84% of the land occupied by built-up surfaces, resulting in limited natural infiltration capacity. The average soil permeability value of 0.00024 m/s indicates favorable conditions for the implementation of infiltration wells. Based on the design calculations, 41 Type III infiltration wells are required, providing a total storage capacity of 289.665 m³ and an infiltration discharge of 0.0919 m³/s. The proposed infiltration well system is capable of reducing runoff volumes by 15.044%, 12.486%, and 11.223% for 2-year, 5-year, and 10-year return periods, respectively. Therefore, infiltration wells can be considered an effective alternative for water conservation and runoff management in residential areas.

Limited land availability is a major constraint in developing school infrastructure in active urban educational facilities. This study evaluates the classroom development plan at SDN 39 Lubuklinggau from the perspective of a planner, focusing on land limitation, functional needs, safety, constructability, and long-term building performance. A descriptive-evaluative approach was applied through technical observation, document review, alternative assessment, weighted scoring, and risk analysis. The results indicate that horizontal expansion is constrained by limited open space and may reduce internal circulation, student activity areas, and emergency space. Three alternatives were compared: horizontal expansion, building rearrangement, and a two-storey classroom scheme. The two-storey alternative obtained the highest score of 84, compared with 61 for rearrangement and 56 for horizontal expansion. However, its feasibility depends on further soil investigation, structural design, staircase and evacuation safety, utility coordination, construction phasing, and strict site safety control. The study recommends that the planner prioritize detailed site measurement, geotechnical investigation, detailed engineering design, construction safety planning, and post-construction functional evaluation. A vertical classroom strategy can be considered a rational solution for land-constrained schools when supported by accountable technical planning and integrated project control.

Ciberi Beach is a tourist area in Enggros Village, Abepura District, Jayapura City, with significant development potential that draws on its natural resources and local wisdom. This study aims to identify internal and external factors influencing the development of the tourism area and to formulate appropriate development strategies using SWOT analysis. The research employs a mixed-methods approach, combining qualitative and quantitative techniques, with data collected through field observations, in-depth interviews, and questionnaires distributed to 25 visitors. The findings show that the main strengths are unspoiled natural scenery and community friendliness, while the main weaknesses include inadequate public facilities and poor road access. Key opportunities include ecotourism potential and policy support for spatial planning, while threats include coastal abrasion and unmanaged waste. Based on the SWOT matrix, the strategic position falls in Quadrant I (X = 0.31; Y = 0.51), supporting an aggressive SO strategy. Priority strategies include community-based ecotourism development, digital promotion, collaborative partnerships with universities and NGOs, and regulatory strengthening for sustainable land use. The analysis is grounded in a three-framework theoretical lens comprising the 3A tourism components (Attraction, Accessibility, Amenity), ecotourism principles, and community-based tourism, which together guide the interpretation of SWOT findings and the formulation of strategy.

The development of an economic activity in a city is often one of the influences on changes in the use of residential space in the surrounding area. One of the phenomena that we can see in big cities in Indonesia is the use of residences as rental housing such as boarding houses and rents aimed especially at workers in foreign areas. This study aims to analyze the use of residential space by the community as temporary residence for employees of Mie Gacoan restaurant in Serang City, Banten, and see how it affects the spatial dynamics of the residential area. This study uses a primary and secondary data-based case study method with a qualitative descriptive approach. The results of the study show that the existence of economic activities around residential areas can encourage an increase in the need for temporary housing for workers in rural areas. This phenomenon makes some people take advantage of their residences by making them rental residences such as boarding houses and rented ones. This can affect the spatial structure of the residential area, such as increasing population density, increasing activities in the residential environment, and the presence of small economic activities by the community. Therefore, this phenomenon states that the development of economic activity in an urban area can trigger changes in the use of space in the surrounding residential area.

Artisanal and small-scale gold mining (ASGM) provides short-term income for rural communities but frequently creates environmental, safety, and governance problems when it operates outside formal control. This study aimed to analyze the existing condition of ASGM, identify the driving and inhibiting factors of its arrangement, describe the perceived impacts, and formulate strategic directions for ASGM arrangement in Karang Jaya District, North Musi Rawas Regency, Indonesia. A qualitative descriptive approach was applied using semi-structured interviews supported by secondary data on the study area, population, and agricultural land use. Twenty-two informants represented district officials, village officials, technical agencies, company representatives, community leaders, nearby residents, and ASGM actors. Data were analyzed through reduction, presentation, interpretation, and conclusion drawing. The findings show that ASGM development is driven by gold potential, mining history, household economic pressure, limited alternative employment, and weak field control. The main impacts include land degradation, open mining pits, landslide and occupational accident risks, and mercury-related water and soil contamination. The recommended strategy combines alternative livelihood development, skills training, local economic institutional strengthening, gradual area monitoring, land rehabilitation, and mercury-risk education.

This study aims to analyze the dynamics of urban growth, land use change, and settlement development in Wamena City during 2020–2025. The research employed a quantitative descriptive approach using satellite imagery and population data obtained from the Central Bureau of Statistics (BPS) of Jayawijaya Regency. The analysis was conducted through satellite image interpretation to identify land use changes and the expansion of built-up areas.The results indicate that the built-up area in Wamena City increased from 1,250 hectares in 2020 to 2,012 hectares in 2025. Meanwhile, the population increased from 44,315 people to 49,102 people during the same period. Land use changes were dominated by the conversion of open land into residential areas and other urban facilities. Settlement growth generally followed the main road networks, city center, and areas surrounding Wamena Airport. Population growth, urbanization, economic activities, and infrastructure development were identified as the main factors influencing urban growth dynamics in Wamena City. These conditions resulted in reduced open spaces and increased urban density.

This study aims to describe gazebo management strategies as tourism infrastructure to increase visitor attraction at Pasir Putih Parparean II Beach, Porsea Subdistrict, Toba Regency. The beach is a unique destination in the Lake Toba area, characterized by fine white sand that is rarely found in the region. However, visitor data from the Toba Regency Tourism Office reveals a significant decline, from 35,304 visitors in January–April 2023 to only 1,550 visitors in January–August 2025. This decline is closely linked to the unplanned construction of permanent gazebos on the beach area, which has reduced the open space that constitutes the beach’s main attraction. This study employed a descriptive qualitative method. Data were collected through in-depth observation, semi-structured interviews, and documentation. The key informants consisted of three beach managers: Herbert Napitupulu, Nora Pandiangan, and Her Hutasoit, selected purposively based on their direct involvement and in-depth knowledge. Two regular tourists were also included as additional informants. Data analysis followed the Miles and Huberman model, encompassing data reduction, data presentation, and conclusion drawing. The results indicate that gazebo management strategie including facility improvements, environmental landscaping, and the provision of supporting amenities contribute significantly to enhancing visitor comfort and tourism appeal. This study recommends more systematic and planned management, spatial restructuring of gazebo placement, and the implementation of effective promotional strategies to support Pasir Putih Parparean II Beach as a sustainable tourism destination.

Diabetes Mellitus is a non-communicable disease with an increasing prevalence and has become a major public health concern globally and nationally. The incidence of diabetes mellitus is influenced by various individual and environmental factors. This study aimed to analyze the relationship between age, gender, and residential proximity to landfill areas and the incidence of diabetes mellitus in Bendosari District. A quantitative analytic observational design with a cross-sectional approach was employed. The study population consisted of 1,890 patient visit records recorded in the Management Information System of Bendosari Public Health Center in 2025. A total of 363 respondents were selected using proportionate stratified random sampling. Data were analyzed through univariate analysis, bivariate analysis using the Chi-Square test, and multivariate analysis using multiple logistic regression. The findings showed that age was significantly associated with diabetes mellitus incidence (p=0.000; OR=79.790; 95% CI=53.511–118.974). Gender was also significantly related to diabetes mellitus incidence (p=0.000; OR=0.298; 95% CI=0.203–0.435), indicating that females had a higher risk than males. In contrast, residential proximity to landfill areas was not significantly associated with diabetes mellitus incidence (p=0.308; OR=1.247; 95% CI=0.439–3.540). Multivariate analysis revealed that age and gender were the dominant factors influencing diabetes mellitus incidence, with the model explaining 56.1% of the variation. The study concludes that age and gender are significant determinants of diabetes mellitus incidence, whereas residential proximity to landfill areas has not been proven to significantly affect its occurrence.

Rapid population growth in Sidoarjo Regency has triggered massive land-use changes, resulting in increased surface runoff and reduced performance of the drainage system. This study aims to evaluate the hydraulic capacity of drainage channels in the Pondok Sidokare Indah Housing area against design flood discharges with return periods of 2, 5, and 10 years. The method used is a descriptive quantitative approach, involving hydrological analysis using maximum daily rainfall data from 2015–2025 and hydraulic modeling of the existing channel along 350 meters. The frequency analysis results indicate that the Log Pearson Type III distribution is the most suitable method based on statistical parameters and the Smirnov-Kolmogorov goodness-of-fit test. The calculation of design flood discharge using the rational method yields values of 0.749 m³/s (2-year), 1.003 m³/s (5-year), and 1.164 m³/s (10-year). Meanwhile, the maximum capacity of the existing channel ranges only between 0.534 m³/s and 0.733 m³/s. The comparison between hydrological load and channel capacity shows that all observation points (Sta 0+000 to Sta 0+350) are in overflow condition, even for the lowest return period flood discharge. This condition confirms that the current channel dimensions are no longer adequate and require normalization to mitigate annual flooding in the area.

Poor soil quality and inefficient nutrient utilization remain major constraints in tomato (Solanum lycopersicum L.) cultivation, often resulting in reduced plant growth, lower productivity, and suboptimal fruit quality. This study aims to evaluate the growth performance of rose tomatoes through the integration of open-field cultivation and hydroponic planting systems. The research methods included land preparation using the Pythagorean technique to ensure proper spacing and planting layout, the application of organic fertilizers to improve soil fertility, and the transition to a hydroponic drip irrigation system using rockwool as the growing medium during weeks 1 to 7 of plant development. Plant growth parameters, including plant height, leaf development, stem vigor, and overall plant health, were observed throughout the cultivation period. The results indicated that the combination of appropriate soil management practices and precise nutrient delivery in the hydroponic system significantly enhanced nutrient uptake and supported healthy plant growth. Furthermore, the drip irrigation system helped optimize water use efficiency while reducing nutrient losses. This integrated cultivation approach demonstrated its potential as an effective solution for maintaining crop quality and productivity, particularly in areas with limited land resources. Overall, the findings suggest that integrated management practices can provide a practical, efficient, and sustainable strategy for farmers seeking to improve horticultural production in modern agricultural systems.

Magelang City faces the challenge of limited land availability, with a total area of only 18.58 km2 and a high population density. Consequently, telecommunications infrastructure development requires a precise strategy. This study aims to analyze the business model and investment feasibility of Pole and Greenfield type telecommunication towers in Magelang City. Using a descriptive quantitative approach, this research processes secondary data from PT Dayamitra Telekomunikasi Indonesia by applying feasibility analysis based on Life Cycle Costing (LCC), Net Present Value (NPV), Internal Rate of Return (IRR), Break-Even Point (BEP), Payback Period (PP), and Benefit-Cost Ratio (BCR). The results indicate significant differences in cost structures; Pole towers proved to be more efficient, requiring an initial capital outlay of only 28.8% of the total capital required for Greenfield towers. Greenfield towers generated an NPV of Rp13.07 billion with an IRR of 20%, while Pole towers generated an NPV of Rp2.46 billion with a higher IRR of 23%. Pole towers have proven to offer a faster return on investment and better operational cost efficiency, making them the most strategic option to support network densification and the implementation of 5G technology in urban areas with spatial constraints like Magelang City.

The Padang State University Community Service Program (KKN) in Jorong Koto Tingga, Nagari Sirukam, Payung Sekaki District, Solok Regency, West Sumatra, implemented a public space revitalization program through the construction of a creative garden based on rice field views. This program was created in response to the lack of representative public spaces and the decline in social interaction between residents due to modernization. Using a participatory approach, the community and youth of the jorong were involved in every stage, from planning, land clearing, to the construction of seating facilities overlooking the expanse of rice fields. As a result, the empty land was successfully transformed into a functional, aesthetic, and locally valuable public space. The high level of community participation demonstrated the success of the approach implemented and fostered a sense of ownership of the park being built. This program is expected to become a model for revitalizing public spaces based on local potential for other rural areas. Although the construction was not fully completed when the KKN program ended, the community and youth of Jorong Koto Tingga are committed to continuing it independently. This program is expected to become a model for revitalizing public spaces based on local potential for other rural areas with similar characteristics.

This study examines land-use transformation in Hamadi Rawa I, Jayapura City, focusing on the shift from water catchment to built-up land during 2015–2025. The research employs a mixed-methods approach, combining analysis of Google Earth imagery with interviews with community, government, and academic stakeholders. Findings show the catchment area shrank by 48% (from 17% to 8% of the total area), decreasing from 21.36 ha to 11.20 ha. The built-up area increased by 28.1%, from 70.78 ha to 90.67 ha, with residential development driving most of this growth (51.1%). Three spatial transformation patterns emerged: ecological fragmentation, linear service sector development, and concentric settlement patterns. Idle land was also identified as a phenomenon that damages ecological functions without providing a productive benefit. The conversion was driven by physical-natural factors (basin topography), economic factors (market proximity), socio-demographic factors (urbanization), and especially institutional factors. Customary land transactions outside state control created a governance dilemma between humanity and public order. The study recommends a proactive-collaborative approach with three key instruments: (1) Zero-Reclamation with Adaptive Permitting for stilt structures; (2) fiscal intervention using Idle Land Tax and Payment for Ecosystem Services; and (3) a Participatory Spatial Control Task Force integrating government and customary authorities (Ondoafi).

According to the Regulation of the Minister of ATR/BPN of the Republic of Indonesia No. 14 of 2022 concerning the Provision and Utilization of Green Open Space, an area must have at least 30% Green Open Space of its total area with details of 20% as Public Green Open Space and 10% as Private Green Open Space. The availability of Public Green Open Space in Pangkalpinang City is ± 1,486 ha or ± 14% of the total area, less than 6% of the applicable provisions. The purpose of writing this scientific article is to determine the potential distribution of Public Green Open Space in Pangkalpinang City as an effort to fulfill the availability of Green Open Space in the area. The variables or data used are open land by considering residential / non-residential areas, building density, distance from roads and distance from rivers, as well as land ownership or control status, content in the Spatial Plan, and Green Open Space typology. This study uses overlay analysis techniques to determine the distribution of potential Public Green Open Space in the Pangkalpinang Region. The results of the study indicate that there is still a distribution of potential land that can be developed into public green open space including green open space areas/zones in the form of road borders and other areas/zones in the form of areas that provide protection to the area below, spring borders, underpasses, beaches, and rivers. The distribution of potential public green open space can be used as a consideration in fulfilling the availability of public green open space in the Pangkalpinang area of ​​20% of its area. The fulfillment of Public Green Open Space can provide ecological and social functions for the surrounding environment.

Hydroponic cultivation of mustard greens (Brassica juncea L.) in greenhouses is an effective alternative for overcoming land limitations, particularly in urban areas. Hydroponic systems enable plants to obtain nutrients optimally through the application of the Nutrient Film Technique (NFT) and Deep Flow Technique (DFT), thereby promoting more efficient plant growth. In addition, the success of hydroponic mustard cultivation is influenced by environmental control, including temperatures ranging from 15–35°C and relative humidity levels of 70–90%. Plant nutrient requirements are supplied through an AB Mix nutrient solution with a pH range of 5.5–6.5 and an electrical conductivity (EC) value of 1.5–3.0 mS/cm. This review aims to analyze various factors affecting the growth of hydroponic mustard greens, including nutrient management, environmental conditions, and biological pest and disease control using beneficial agents such as Trichoderma and Bacillus. Furthermore, this study discusses several technical and economic challenges that may influence cultivation success. The findings indicate that hydroponic systems can significantly improve crop productivity and yield quality, reduce the use of chemical pesticides, and support the implementation of sustainable and environmentally friendly urban agriculture in Indonesia.

This research aims to examine the potential adaptation of Naval military logistics strategies to optimize humanitarian logistics distribution in remote archipelagic regions. Utilizing a descriptive qualitative method with a Systematic Literature Review (SLR) approach of literature from the 2020-2026 period, this study dissects the concept of Sea-Based Logistics through domain, taxonomic, and componential analyses. The findings indicate that military advantages in floating infrastructure and integrated command chains can effectively bypass distribution barriers in areas lacking port facilities. The study concludes by recommending a military-civilian logistics integration model as a strategic solution for national logistics resilience in coastal areas. The effectiveness of this strategic adaptation relies not only on physical operational aspects but also on the synchronization of budgetary policies and the integration of information technology within the supply chain. From a logistics economics perspective, utilizing naval assets as floating bases mitigates the risk of high costs resulting from post-disaster land infrastructure damage. This synergy necessitates the establishment of collaborative Standard Operating Procedures (SOPs) between military and civilian authorities to create a humanitarian logistics ecosystem that is more resilient, transparent, and capable of responding to crisis dynamics in outlying regions in real-time

The Aceh Tamiang region was one of the areas affected by the hydrometeorological disaster. The disaster not only caused damage to community facilities and infrastructure but also left behind dead soil deposits that were poor in nutrients, dense in texture, and less productive for supporting agricultural and plantation activities. Research was conducted to examine strategies for utilizing dead soil after flooding by processing it with organic materials so that it could be converted into organic fertilizer with utility and economic value. This research aimed to find environmentally friendly land rehabilitation solutions, increase soil productivity, and open new business opportunities for disaster-affected communities. The results showed that the combination of flood sediment soil with organic materials significantly increased nutrient content, improved soil structure, increased water holding capacity, and accelerated the growth of test plants compared to untreated soil. Furthermore, this program provides dual benefits: on the one hand, it serves as a post-disaster land rehabilitation solution, and on the other hand, it serves as an opportunity for an organic fertilizer business that can reduce the community's dependence on relatively expensive chemical fertilizers. The implications of this research are not only limited to the technical aspects of agriculture but also touch on the socio-economic dimensions of the community. Utilizing dead soil as organic fertilizer can strengthen local economic resilience, increase farmer independence, and encourage the creation of environmentally friendly, sustainable agricultural systems. Therefore, this strategy can serve as an innovative model for addressing the impacts of hydrometeorological disasters in other areas facing similar challenges.

This study analyzes the urgency of strengthening citizen lawsuit mechanisms in response to spatial planning failures from an environmental law perspective, using the 2025 floods in Bali as a case study. The study is motivated by the increasing frequency and intensity of floods, which can no longer be understood as merely natural phenomena, but rather as the result of structural failures in spatial planning management and weak government accountability. Normatively, spatial planning is regulated under Undang Undang Nomor 26 Tahun 2007 dan Undang Undang Nomor 32 Tahun 2009 however, its implementation reveals a gap between legal norms and actual practice. The methodology employed is a normative legal approach, involving an analysis of legislation, legal doctrine, and judicial practices related to citizen lawsuits. The study's findings show that land-use conversion and development in water catchment areas, which go against the precautionary principle, the polluter pays principle, and sustainable development, are examples of spatial planning violations that cause flooding in Bali. In this situation, citizen lawsuits increase public access to justice while acting as a legal tool to hold the state responsible for its carelessness. However, this mechanism's effectiveness is still limited by the absence of a clear legal foundation, the difficulty of the burden of proof, and the public's limited access to the litigation process. Therefore, in order for citizen lawsuits to serve as effective tools for environmental protection and accountability, it is imperative that clear regulations be established, procedures be streamlined, and public access and ability information be improved.

This study examines the effectiveness of local government policies in infrastructure development and urban park management as multifunctional public spaces at Bundaran Besar Palangkaraya. Rapid urban development and increasing community needs for public spaces have encouraged the government to revitalize this area as a city landmark and social interaction space. This study uses a qualitative descriptive method with data collection techniques through literature review, observation, and documentation. The results show that the development and revitalization of Bundaran Besar have improved aesthetic quality, public facilities, environmental conditions, and social functions. However, several challenges remain, including limited accessibility for certain groups, suboptimal management and maintenance systems, and traffic and parking issues during peak hours. The analysis indicates that although government policies have contributed positively to the development of public spaces, their effectiveness is still not fully optimal. Therefore, stronger governance, community participation, and sustainable management strategies are needed to enhance the role of Bundaran Besar as an inclusive, functional, and sustainable public space.