Civil and Environmental Science Journal (CIVENSE - Fakultas Teknik Universitas Brawijaya)
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The Influence of Social Capital and Human Capital on Food Security in Karangpatihan Village, Indonesia
Get PDFAgriculture is vital to food security because it provides food, clothing, and shelter. Based on the 2022 Indonesian Food Security Index (IKP), Ponorogo Regency is ranked 19th out of 416 districts throughout Indonesia, with a food security score of 86.20. However, there will be a decline in rice production in Ponorogo Regency in 2022. It will, of course, impact the condition of food security in villages, one of which is Karangpatihan Village. Social capital is a fundamental aspect of creating sustainable agricultural development. This concept refers to the beliefs, networks, values, and norms facilitating cooperation and collective action to achieve common goals. The strong trust between farmers is vital to fostering cooperation and strengthening their social networks. A good social network reflects mutually agreed-upon norms for establishing relationships and interacting. This research aims to identify the influence of farmers\u27 social and human capital in supporting food security in Karangpatihan Village. Research data was obtained based on questionnaires from 250 farmers in Karangpatihan Village. The analysis used is structural equation modeling (SEM) analysis, which is used to identify the influence between variables. Based on SEM analysis, there is a positive direct relationship between social capital and food security variables. Meanwhile, the direct relationship between human capital and food security variables is negative
A Dynamic Model of Raw Water Availability for Clean Water Demand in the Bedadung Watershed
Get PDFThe Bedadung watershed has undergone multiple changes in land cover, resulting in high erosion, sedimentation, flooding, and population pressure, which has caused an imbalance between the demand for clean water and the availability of raw water. Changes in land function resulted in decreasing infiltration capacity and increasing surface flow. This research aims to create a dynamic model of raw water availability in the Bedadung watershed to supply the domestic and non-domestic sectors in Jember. The availability of raw water is influenced by dynamic inputs such as population, industrial, and tourism growth, as well as the expansion of agricultural land. This model will produce a causal-loop diagram (CLD) between variables and then create a stock-flow diagram (SFD) using secondary data programmed by the Vensim PLE 10.1.1 application within 50 years. The modeling results show that the need for clean water increases over time, while the availability of raw water will decrease over time after 2025. In 2057, the clean water demand (463.29x106 m3y-1) was higher than the availability of groundwater (461.775x106 m3y-1), but it was still smaller than the availability of surface water (56,853,200x109 m3y-1). Water-carrying capacity will increase until 2025, then decrease over time
Sustainability Status of Bale Tani Vernacular Architecture in Sade Village, Central Lombok Regency, West Nusa Tenggara
Get PDFSade Village displays a unique settlement pattern that is influenced by geographical conditions and the needs of its residents. One of the buildings that follows the contour of Sade Village is Bale Tani, a medium-sized bale generally inhabited by families with a middle economic level. Bale Tani has undergone several changes due to the wishes of its residents, which have the potential to influence the sustainability of its vernacular architecture. This research aims to analyze the sustainability of Bale Tani vernacular architecture in Sade Village using the Multidimensional Scaling (MDS) method through the RAPFISH application, as well as carry out leverage analysis to identify indicators that influence sustainability. The results of the analysis show that the overall level of sustainability of the Bale Tani vernacular architecture is less than satisfactory, with a sustainability index value reaching 47.64%. Each of the analyzed dimensions, such as visual image, climate responsiveness, and comfortable living space, shows a low level of sustainability. Of the 18 indicators observed, nine indicators, including kamar dedare, kamar dengan to’aq, roof sheathing, wall sheathing, window openings, building floor, floor plan, roof, and wall, are the dominant factors in the sustainability of Bale Tani vernacular architecture
Analysis of Wanggu River Sedimentation Due to Land Cover Change using ArcSWAT and its Alternative Control
Get PDFThe downstream Wanggu watershed is located in Kendari City, the capital of Southeast Sulawesi Province, with an area of 329.59 km2. So it is very important to arrange the right space. In this research, an analysis of the impact of changes in land cover on sedimentation levels will be carried out, as a basis for considering space utilization so as not to exceed the carrying capacity of the watershed. The analysis method uses the Arcswat application, and land cover changes using comparative data for 2001, 2006, 2009, 2014, and 2020. One of the obstacles in land cover classification is the presence of clouds that cover part of the image. In this research, Google Earth Engine (GEE) is used which will automatically process historical data so that areas covered by clouds are replaced with images that are clear of clouds. The research results show that agricultural land cover has the greatest influence, and overall the watershed shows accumulated sedimentation of 2,515,409.90 tons or a rate of 76.40 tons/ha for land cover in 2001 and sedimentation of 2,808,683.45 tons or rate 85.31 tons/ha. for land cover in 2020
A Study of Regional Thermal Environment Quality Based on the Physical Mass Arrangement Characteristics of River Bank Settlements in Jodipan Colorful Village
Get PDFJodipan Colorful Village, originally a slum, has transformed into a popular tourist destination. This study investigates how the physical arrangement of the settlement mass and its thermal environment affect the comfort of activities in the road corridor, a critical public space utilized by both visitors and residents for tourism, commerce, and interaction. The research aims to analyze the relationship between the spatial configuration of the buildings and the thermal conditions of the area, particularly in this densely populated riverside village. Utilizing visual techniques, the study formulates criteria for the spatial arrangement of settlements, focusing on the balance of solids and voids in the layout. Thermal environment measurements are conducted to assess air temperature and humidity along the road corridor. The findings indicate that the spatial arrangement significantly impacts the thermal environment. Factors such as building density, corridor width, and proximity to the river influence temperature and humidity levels, with closer proximity to the river correlating with higher humidity and lower temperatures. These results provide insights into optimizing public space design in high-density urban environments, particularly in similar riverside settlements
Analysis of Leading Horticultural Fruit Commodities in the Agropolitan Area of Bojonegoro Regency
Get PDFThe development of agricultural program plans with superior products in certain agribusiness regions in order to boost revenue and significantly empower the area. This is being done in an effort to enhance the government-backed agrobusiness system and agropolitan area development. Regarding RTRW, Bojonegoro Regional Regulation Number 5 2021 designates Dander Kapas Kalitidu Trucuk as the agropolitan area. Bojonegoro\u27s 2022 An examination of superior commodities in the Bojonegoro agropolitan area is necessary in order to create a development plan for the agriculture industry. The study\u27s findings can be utilized to drive the agropolitan region of Bojonegoro Regency\u27s development in a way that will enhance community welfare and spur local economic expansion. Shifts Share Analyzes (SSA) and Location Quotient (LQ) analyses were employed in this study. This study\u27s findings indicate that the star fruit commodity, with a LQ value of 1.13 and an SS value of 33.87, the guava commodity, with a LQ value of 1.91 and an SS value of 6819.19, the Siam orange commodity, with a LQ value of 2.33 and an SS value of 8.25, and the snake fruit commodity, with a LQ value of 3.16 and an SS value of 21.75, are the superior commodities. The Bojonegoro agropolitan area is witnessing the development of exceptional fruit horticulture, indicating that a holding and maintaining plan would be the most effective approach for managing the organization. Strategies for product creation and market penetration are used. The strategy calls for increasing the product\u27s quality, expanding its distribution networks, marketing it, and changing market prices
The Amount of Water used to Wash Hands to Prevent The Spread of Covid-19
Get PDFBased on the WHO data updated on December 28, 2021, the global tally of COVID-19 cases for that year reached 281,808,270, with a reported 5,411,759 deaths worldwide. Specifically in Indonesia, the cases total 5,411,759, with 144,081 deaths by that date. To reduce the risk of transmission, practicing good hand hygiene is crucial. Regular hand washing with soap and water or using an alcohol-based hand sanitizer when soap isn\u27t available helps remove pathogens from our hands, contributing to a cleaner and healthier lifestyle. Collecting rainwater in specially designed containers can be an effective and sustainable way to meet handwashing needs, supporting health protocols to prevent the spread of COVID-19. By providing an accessible water source for hand hygiene, communities, especially those with limited water access, can implement handwashing practices more consistently. This initiative is beneficial for promoting both environmental sustainability and public health, particularly in areas facing water scarcity. Additionally, filtration or disinfection processes can enhance rainwater collection systems to ensure safe water for handwashing, further supporting a cleaner and healthier environment. The result is that visitors wash their hands on average 5 times per day, with an average volume of 0.6 liters of water used in a one-time hand wash. With an interval of 6 days without rain, the maximum hand washing needs are 53.35 m3. The roof area in the market is 16,240 m2, and the water volume from effective rain is 21.11 m3. If we use a reservoir of 1200 liters, we need 22 22-unit reservoirs for maximum water demand.
Analysis of Erosion and Land Conservation Based on Geographic Information System in Way Sekampung Subwatershed
Get PDFWay Sekampung subwatershed is the watershed area of Way Sekampung dam. The changes in land use that occurred in the Way Sekampung subwatershed caused flooding and landslides. To reduce existing problems, vegetative and mechanical land conservation efforts are needed. In this study, the USLE method was used to estimate the rate of erosion and then map the distribution of the Erosion Hazard Index in the Way Sekampung Subwatershed with the help of Geographic Information System (GIS). Based on existing conditions, the erosion rate in 2017 was 29626.262 tons/ha/year; in 2022, the erosion rate was 76617.579 tons/ha/year. The results of the analysis of the Erosion Hazard Index in 2017 and 2022 showed four criteria, namely low with a difference of -1.115%, moderate with an increase of 1.140%, high with a difference of -0.097%, and very high with a difference of 0.071%. Conservation with new land use, construction of terraces, and check dams has resulted in a reduction in erosion in the Way Sekampung Subwatershed with an Erosion Hazard Index, which is a low index increase of 26.992% from the existing condition and a very high 22.819% reduction from the existing condition. These results show that land conservation can reduce erosion in the Way Sekampung Subwatershed
Study of Tiu Kulit Dam Reservoir Operational Pattern Simulation in Sumbawa Island
Get PDFTiu Kulit Reservoir plays a pivotal role in managing water resources in West Nusa Tenggara, Indonesia, serving as a vital source for raw water, irrigation, and livestock consumption in the neighboring regions. This study aims to assess the operational dynamics of Tiu Kulit Reservoir across varying hydrological conditions, namely dry, normal, and wet years. The analysis is based on inflow rates and equilibrium water surface elevations. To achieve the objectives, an investigation of the reservoir\u27s operation pattern was conducted. Inflow rates and equilibrium water surface elevations were scrutinized to discern operational behaviors under different hydrological scenarios. The findings indicate distinct operational strategies for Tiu Kulit Reservoir. During dry years, the outflow rate is restricted to 1.20 m3/s at a water surface elevation of +53.07 m. Conversely, the reservoir\u27s operation in normal and wet years allows for a maximum outflow rate aimed at satisfying water demand, set at +57.00 m. In instances of excessive rainfall, the study highlights the potential for overflow beyond the spillway threshold. The study underscores the significance of these results for effective water management and resource allocation in the region. Understanding the reservoir\u27s behavior under various conditions enables informed decision-making and sustainable utilization of water resources. To build upon this study, it is recommended to implement continuous monitoring systems for both inflow and outflow rates. Furthermore, the installation of rainfall monitoring stations within the catchment area would enhance data accuracy. Regular evaluations of the reservoir\u27s operational patterns are also advised, allowing for adaptive strategies in response to evolving climate conditions. Moreover, future research endeavors should focus on augmenting water supply to meet the demands of a growing population and livestock, while optimizing agricultural practices to boost productivity
Erosion and sedimentation analysis as basic reference for land conservation planning on Lesti Sub-Watershed
Get PDFThe Lesti sub-watershed area is mostly steep mountain slopes, when the rain fall it carries erosion and sediment material. Erosion Hazard Level on Lesti Sub-Watershed were obtained as follows: Class I 11.92%; Class II 27.45%; Class III 43.85%; Class IV 13.06%; Class V 3.99%. Four (4) parameters overlaid to determine the land criticality level are: the map of land coverage, land slope, erosion risk level, and management aspect. Generally, Lesti Sub-Watershed is categorized as: very critical 0.14%; critical 4.61%; a rather critical 28.06%; critical potential 53.66%; and normal 13.51%. From SWAT analysis with total sub-basin of 39 and 1013 HRU (Hydrology Respon Unit) resulted the average value respectively soil erosion is 119.60 tons/ha/year; sediment yields 310.77 tons/ha/year; rainfall 2143.27 mm/year; and surface runoff 1120.65 mm/year. The suggestions of the watershed area conservancy requires a vegetative (planting) and mechanical (building) method. The vegetative method such as: alleys cropping; reforestation; agroforestry; relay cropping; soil cover cropping as natural green manure; living fence or windbreak; mixed cropping farm; mulch; environment greening; strip cropping with 20.65% effectivity; and filter strip with 26.03% effectivity. The mechanical method such as: contour tillage with 29.71% effectivity; terracing with 23.41% effectivity; check dam with 17.50% effectivity; and mound