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Improvement of the feasibility of developing transit-oriented development for Yogyakarta commuter line stations
No full textTransit Oriented Development (TOD) has been recognized as a sustainable approach to urban development and transportation. This study aims to improve the feasibility of developing TOD for Yogyakarta Commuter Line Stations, focusing on the Yogyakarta Railway Station as a transportation system node and catalyst for economic growth. The research method used in this study is spatial modeling with a geographic information system, specifically using a 500-meter buffer area around the Palur Station. The study highlights the potential of integrating public transport and land use to reduce the impact of urban development and attract further development around the transit nodes. The findings of this study can provide valuable insights for policymakers and urban planners in Yogyakarta to enhance the feasibility of developing TOD for the Yogyakarta Commuter Line Stations. The results of this study show that the implementation of TOD around the Palur Station can improve the feasibility of developing TOD for Yogyakarta Commuter Line Stations. The spatial modeling analysis indicates that the area has the potential to attract further development and increase economic growth. The study also identifies the need for optimizing the existing public transport system and its synergy with land use planning to achieve the full potential of TOD. © 2023 EDP Sciences. All rights reserved
Critical success factors of Public-Private Partnerships in the education sector
No full textPurpose: This paper aims to identify the factors affecting the implementation of Public-Private Partnerships (PPPs) in the education sector. Design/methodology/approach: Based on Scopus and adopting the protocol of Staples and Niazi (2007), this systematic literature review examined 21 articles on PPPs in the education sector. Content analysis is adopted to identify research gaps and provide information on critical issues in the cases. Findings: The findings have identified the critical success factors of PPPs in the education sector in 12 countries, revealing varying degrees of success and implementation challenges. They reflect the importance of clear objectives, effective communication, and robust partnerships between the public and private sectors to achieve success. These insights contribute to an in-depth understanding of PPP implementation in education, which can guide future projects. Originality/value: The critical success factors identified in PPPs implementation in education across various countries may provide a comprehensive worldwide perspective for researchers, practitioners and policymakers. © 2023, Sajida and Bevaola Kusumasari
Modeling Lasolo Watershed Sedimentation and Mangrove Root Growth at the Lasolo Coast in North Konawe, Indonesia
No full textThis research sought to simultaneously measure sedimentation and mangrove root growth rates at the Lasolo River estuary and construct a predictive sedimentation model from the measured rates. The applied methods were descriptive quantitative analyses using cloud-based computation to obtain sea surface temperatures, Landsat 8 and 9 OLI images to identify land cover change, field-derived data, and rain data. The neural network toolbox in MATLAB was used to perform the modeling. Results showed that sediments accumulated at the highest rate of 6.10 cm, and mangrove roots grew at an average of less than 1 cm per two weeks, meaning that the former always surpasses the latter. The forecasting model’s training and validation each produced a regression value (R) of 0.92 and 0.69 for sedimentation rates and R=0.83 and R=0.88 for root growth rates. Sedimentation rates continued to vary until the end of the observation, with a maximum of 3.91 cm. Although the root growth rates had a similar pattern (fluctuating), an upward trend with signs of acceleration to 0.62 cm was observed. This study also detected a conversion of vegetated land into open mining areas, which expanded, tentatively, from 645.8 ha in 2013 to 2,112.6 ha in 2022. © 2023 by ASERS Publishing. All rights reserved
Groundwater Pollution Risk Analysis in Wonosari Basin and Gunungsewu Karst Transition Zone, Gunungkidul, Indonesia
No full textThe Wonosari Basin and Gunungsewu Karst Transition Zone have enormous hydrological potential, but highly complex human activities put them at risk of groundwater pollution. This research was designed to analyze the distribution of groundwater vulnerability to pollution, potential sources of contamination (i.e., hazards), and groundwater pollution risk in both areas. The COP method was employed to determine the vulnerability, with modifications on the calculation of lithology (OL), a subfactor of overlying layers (O). The hazard and risk assessments were based on the approach developed by COST Action 620. Based on the values, both study areas are dominated by very low to low vulnerability, with higher values in the transition zone than in the basin. Similarly, the groundwater is generally exposed to activities with a low potential for contamination. However, the hazard values were found to be higher in the basin, which can be linked to its more varied, intensive, and complex anthropogenic activities. Further, the distribution pattern showed that the majority of the two areas have low and very low risks of groundwater pollution, with a higher value measured in the transition zone. © 2023 EDP Sciences. All rights reserved
Factors affecting the choice of contraception in the special region of Yogyakarta: reviews of studies published in the special region of Yogyakarta
No full textTo improve the quality of life and the welfare of the community, the entire community and the government must carry out development programs, namely population control by maintaining the total birth rate (TFR) and even decreasing fertility through women of childbearing age participating in the Family Planning program using modern contraception. This study is a review to summarize published studies related to the factors of choosing contraception in the Special Region of Yogyakarta. The Special Region of Yogyakarta was chosen because the contraceptive prevalence rate increased but the total birth rate also increased. Literature search with data retrieval using Publish or Perish software with Google Scholar data to identify all relevant studies with the title word and some keywords. As a result, the quantitative research designs were reviewed because the search results all use quantitative research. The focus of the study with the theme of contraceptive choice factors in the Yogyakarta Region was divided into 2 groups, namely related to Intra Uterine Devices (IUD) contraception and contraception in general (either long-term or short-term contraceptive methods. Factors influencing the choice of contraception are the level of knowledge, partner support (husband), side effects of contraceptive use, age, education, and occupation. © 2023 EDP Sciences. All rights reserved
Multi-Hazard Analysis in Gunungkidul Regency Using Spatial Multi-Criteria Evaluation
No full textThis study has two aims: to determine the spatial distribution of multi-hazard levels and to discover the interactions, interdependencies, and effects that cascade among hazards in Gunungkidul Regency, Special Region of Yogyakarta. A multi-hazard map was created with a scale of 1:250,000 and modelled using SMCE (Spatial Multi-Criteria Evaluation). The conditioning factors used included slope, rainfall, historical data, river distance, geomorphology, land cover, lithology, and fault distance. The selected conditioning factors for each hazard were then weighted using weighted overlay analysis. The results showed that the area of Gunungkidul can be included in the high-risk category for floods, since the probability of flooding is 56.72, the probability of landslides is 9.14, that of drought is 48.86, and that of seismic disturbance is 20.83. (Multi-hazard maps are created by overlaying flood, landslide, seismic, and drought hazard maps.) After these risk factors were calculated, the regions on the multi-hazard map were re-categorized into five hazard classes. All areas in Gunungkidul Regency have multiple hazards, with risk factors of different magnitudes. The interaction between hazards can generate new hazards that are called cascading hazards. The cascading hazards in the study area are most likely to occur in the north of Gunungkidul Regency with its very high seismic and landslide hazard risk factors, due to the geological and geomorphological conditions of the Ba-turagung Structural Hills. © 2023, Muhammadiyah University of Surakarta. All rights reserved
Species-based aboveground mangrove carbon stock estimation using WorldView-2 image data
No full textThe carbon stocks of a mangrove ecosystem depend to some extent on the diversity of its constituent species, which have different biophysical characteristics. The high-resolution remote sensing imagery from WorldView-2 (2 m pixel size) provides a data source for estimating aboveground mangrove carbon (mangrove AGC) stocks across species. This study was designed to (i) map mangrove species by applying the GEOBIA method, (ii) calculate mangrove AGC using species-specific allometric equations, and (iii) map the spatial distribution of mangrove AGC at the species level. It combined the species map from GEOBIA with carbon stock estimation by generating a model based on the vegetation index (spectral transformation of several WorldView-2 bands) over the Clungup Mangrove Conservation (CMC) area in Malang, East Java, Indonesia. GEOBIA was used to classify mangrove species based on the homogeneous segments of each species depicted in the image, while the carbon stocks in the field were calculated using species-specific allometric equations. A regression function between the carbon stocks and the vegetation index value stored in each pixel was applied to the derived mangrove species map. The GEOBIA species mapping using the nearest neighbor algorithm identified six dominant species in the CMC area, namely Bruguiera gymnorrhiza, Ceriops tagal, Rhizophora apiculata, Rhizophora mucronata, Sonneratia alba, and Nypa fruticans, with an 84 overall accuracy. Based on the regression analysis results, the vegetation index values varied across species. The mangrove AGC estimation and mapping at the species level produced favorable results, with a maximum accuracy of 54.94 for B. gymnorrhiza, 55.55 for C. tagal, 41.43 for R. apiculata, 51.38 for R. mucronata, and 54.87 for S. alba. Also, the range of the estimated carbon stocks differed for each species. This research contributes an innovative development by combining methods of mangrove species mapping with mangrove AGC estimation at the species level. © 2023 Elsevier B.V
Land Use Changes of Ternate Island 2017-2022
No full textThe phenomenon of land use change always increases with population growth so that sooner or later these conditions will cause changes in land use. This study aims to determine changes in land use on Ternate Island in 2017-2022. The method used maximum likelihood classification and used Ternate island land use data from sentinel 2 image extraction in 2017, 2020 and 2022 to analyze changes in land use. There are 7 forms of land use in the study area, namely water bodies, dense vegetation, bushes, farm land, settlements, bare land, Scrub and cloud cover that cannot be extracted from multispectral images. Land use that dominates the island of Ternate is dense vegetation and settlements. Land use, dense vegetation is evenly distributed on the slopes of Gamalama volcano and settlements are scattered at the foot of the volcano. Land use change on Ternate island in 2017-2020 and 2017-2022 is dominated by dense vegetation to settlements. Changes in dense vegetation to gardens and grasses are land clearing activities in preparation for the use of settlement land. © 2023 EDP Sciences. All rights reserved
Distribution Analysis of Asiatic Palm Weevil Rhynchophorus vulneratus Panzer (Coleoptera: Dryphthoridae) using GIS Technique and the Interaction with Coconut Beetle Oryctes rhinoceros L. (Coleoptera: Scarabaeidae)
No full textAsiatic palm weevil Rhynchophorus vulneratus Panzer is one of the key pests of coconut in Indonesia. Information regarding the spatial distribution of R. vulneratus is needed to support Integrated Pest Management and can be analyzed using Geographic Information System (GIS). Initial studies on the interaction between R. vulneratus and Oryctes rhinoceros were also studied in this study. This research aimed to analyze the spatial distribution of R. vulneratus using GIS and its interaction with the Coconut beetle Oryctes rhinoceros. The research was conducted in Yogyakarta as a habitat model (0-1,000 masl). R. vulneratus and O. rhinoceros were catched by installing aggregation pheromone traps hanging to coconut plants at 1.7 m above ground. The research was conducted during the rainy and dry seasons. The spatial distribution of R. vulneratus was analyzed by IDW interpolation using QGIS 3.22, whereas its interaction with O. rhinoceros was analyzed by the Pearson correlation test using SPSS 22. The results showed low number of R. vulneratus captured in the Yogyakarta area during the rainy season at 0-1,000 masl. However, the number of R. vulneratus during the dry season has increased, and the distribution rate was dominated by medium to very high levels, especially at an altitude of 0-300 masl. The study also showed that the number of R. vulneratus was not influenced by the number of O. rhinoceros, which suggested that the abundance of O. rhinoceros cannot accurately predict the abundance of R. vulneratus. © 2023, Bogor Agricultural University. All rights reserved
The settlement quality study based on the physical condition of the building and the socio-economic conditions of Prenggan Village Yogyakarta
No full textSettlements are residential areas complete with facilities and infrastructure, both environmental and public facilities. Furthermore, the quality of settlements is the level or degree of settlements which describe settlements in meeting the needs of their inhabitants. The data collection method used was a field terrestrial survey with the help of GIS tools. Settlement quality assessment was conducted by using grading on each aspect then scored, and analyzed by using descriptive statistical analysis. The identification of the quality of settlements can be done through terrestial survey. It's a survey which takes the researcher to directly do the observation with field questionnaire.This field survey was conducted through structured interviews with selected respondents. The method used in this research is a qualitative descriptive method. This method is used to describe the condition of the quality of settlements in Prenggan Village, according to the facts in the field. The results of the research show that (1) the quality of settlements can be seen from economic characteristics aspect (KEAE), accessibility aspect (AK), physical building aspects (FB), environmental sanitation aspect (SL), residential environment aspect (LH) and (2) Prenggan Village is dominated by medium-high quality settlements. © 2023 EDP Sciences. All rights reserved