Indonesian Journal of Geography
Not a member yet
647 research outputs found
Sort by
Modernization of Agriculture and Use of Information and Communication Technologies by Farmers in Coastal Yogyakarta
Get PDFIn the development process, Information and Communication Technologies (ICTs), which also commonly referred to as electronic media or cyber media have been acknowledged as a new instrument that could facilitate the need of new information and innovation for rural people or farmers. However, several studies reported that extension and communication based-electronic media in developing countries encounter more problems rather than in developed countries. This research aims to investigate the ownership, access, utilization or functions of ICTs for obtaining information supporting the daily life of farmers and for promoting various farming activities in the coastal area of Kulon Progo Regency Yogyakarta. The research method of the study was a descriptive method that has been conducted by a mixed method. The study found that in line with modernization in agriculture, farmers have been using conventional and new electronic media including television, radio and mobile phone with function for getting new information. Conventional electronic media are still dominant while the use of new electronic media has been gradually increasing. Information gathered from ICTs includes social, cultural, economic, health and environmental issues. The use of new electronic media particularly the internet via smartphone has newly started to be utilized among farmers in the coastal farming area who intensively engaged in horticulture crops cultivation mainly for getting and exchange the market information. Information on technological innovation is still dominant among farmers. Better infrastructure and mobility access, improvement of telecommunication network and development of content and format of information provided by new media will be prospective in the futur
Landsat 8 Observation of the Internal Solitary Waves in the Lombok Strait
Get PDFLandsat 8, Landsat Data Continuity Mission (LDCM) satellite, was launched on 11 February 2013 with Operation Land Imager (OLI) sensors. Tis sensor has better radiometric performance than the previous mission, which is quantized in the 12-bit dynamic range due to an increase in the signal-to-noise (SNR) ratio. In this analysis, the spatio-temporal distribution of the propagation of the internal solitary wave (ISW) in the Lombok Strait was extracted from the Landsat 8 images described for the first time. Tere were 14 ISW events studied for period 2014 - 2015 using Landsat 8. Te manifestations of ISW recorded on Landsat 8 images were then extracted using digitization method to investigate and measure several parameters and ISW distribution in the Lombok Strait. Te estimation results of the average ISW phase velocity in this study are 2.05 ms-1 with the direction of propagation heading north at an average angle of 19.08°. Tis study has shown that Landsat 8 can be used to monitor and analyze several internal wave parameters in the ocean
Education among Scheduled Caste Population in India
Get PDFLack of education among the scheduled castes (SC) population in India may be the main reason for remaining at the lower end of the social structure. Therefore, this study attempts to explore the changing trends in literacy among the SC to find out the determinants of higher education and to explore the major reasons for never enrolling or discontinuing/dropping out from educational institutions among the SC population in India. Using the data from the Census of India and also from National Sample Survey and employing both bivariate and multivariate analysis, the results reveal that though there is an increasing trend in the literacy rate among the SC population, but the rates remain quite below the national average. Gender disparity in literacy is quite evident. The low level of higher education mainly due to reasons like failing in examinations, heavy drop-outs and stagnation caused by their poor socio-economic background. Despite various efforts by the central and state governments to eradicate differences in educational attainment among the social groups through several constitutional steps from time to time there still remain gaps to be bridged
Change Detection in Landuse/ Landcover of Abeokuta Metropolitan Area, Nigeria Using Multi-Temporal Landsat Remote Sensing
Get PDFThis research paper examined the changes in land use/ land cover of Abeokuta, Nigeria between 1984 and 2015 using Multi-Temporal Landsat Remote Sensing paired with Geographic Information System (GIS) techniques. The evaluation of the trend, rate and magnitude changes was the objectives of this study. Five Landsat satellite images of different dates, i.e., Landsat Thematic Mapper (TM) of 1984, 2001, 2006, 2011 and 2015 with spatial resolution ranging from 15, 30 and 60metres were obtained from National Aeronautics Space Administration(NASA),United State Geological Survey Website and GIS facility of Sioux Falls Website and quantify the changes over a period of thirty-one (31) years. Supervised classification methodology was applied to the acquired multi-band raster imageries using maximum livelihood technique in ERDAS Imagine 9.3. The images of the study area were classified into three (3) classes namely; vegetation, water body and built-up area and were overlay with vector maps of the study area generated in ArcGIS 10. The results show that for the period of 31years (1984-2015), vegetation which covered 76.20% of the total area has decreased to 39.29%, water body decreases from 6.63% to 1.89% while the built –up area which initially was 17.14% as at 1984 increased to 58.82%. The study, however, recommended that there is a need for a timely Land use/ Land cover mapping of the entire Abeokuta and its environs in order to reduce the effects of undiscrimate land utilization in the area. This will also facilitate necessary Land use planning and forestall the rising sprawl not only in Abeokuta but also in other urban centres
Contesting the Social Spaces: Gender Relations of Literary Communities in Yogyakarta and Surakarta
Get PDFThis research seeks to map the gender relations within literary communities and their contestations in gaining social and financial capital in Yogyakarta and Surakarta social spaces. The presence of literary communities in these spaces, on the one hand, explains the local and specific self-identities of the communities, as well as their heterogeneity in gender relations. In particular, this research maps these communities' differences in expressions, trajectories (visions for the future), themes, narrations, language, and networks based on their gender relations. The Geographic Information System (GIS) method is used to map and explore the gender issues in these literary communities. By understanding the mapping of these literary communities, the dynamics of the social spaces used by these communities can be traced synchronically within a specific period. It can also be followed up when the database is used diachronically over time. This research finds that social spaces that enable open narration are insufficient to ensure the equality of women and men. Flexible domestic spaces for women are also necessary to ensure women to be active in creating the trajectory of the literary communities since they have capacities to do it
Monitoring Vegetation Change in the Dryland Ecosystem of Sokoto, Northwestern Nigeria using Geoinformatics
Get PDFThe dryland ecosystem of Sokoto state, in the North-western part of Nigeria has been witnessing gradual loss of vegetation cover in the recent decades caused by natural and human induced drivers of ecosystem change. This negative trend poses great challenges to both the physical environment and the people of the area, particularly due to the fragile nature of the ecosystems in the region and the peoples’ over dependence on it for their livelihoods. This study tries to monitor and assess the rate of change in the spatial distribution of vegetation in the area over the time and identify the drivers responsible for changing the vegetation. This is with a view to providing evidence-based information to the policy makers that would guide them in making informed decisions that would assist in conserving the vegetation and the entire ecosystem of the area. Using multi-temporal MODIS-NDVI satellite data, image processing and GIS techniques, this research work tries to monitor and assess gradual change in vegetation cover in Sokoto state, North-western Nigeria. Correlation analysis was also used to measure the degree of relationship between vegetation change and some drivers of ecosystem change in the area. The findings of the research reveal a gradual but persistent decline in vegetation cover in the area, both during the rainy and dry seasons. This is also show a strong positive relationship with the rainfall distribution and a perfect negative relationship with the population distribution of the area. This indicate that, both climate change and anthropogenic drivers plays a significant role in changing vegetation distribution of the area. Anthropogenic drivers however, play a more significant influence. The degree of relationship is however, stronger during the dry season, making the ecosystem more vulnerable during the dry season due to increasing aridity. Although change in the vegetation cover of the area seems to be gradual and unnoticed, if left unchecked the long-term cumulative impacts could have serious negative impacts on both the structure and functions of the ecosystems of the area. This could in turn, affect the livelihoods and socio-economic development of the area
Urban sediment in infiltration wells: A lesson from the northern area of greater Yogyakarta city
Get PDFThe development of housing in Yogyakarta eventually led to increased levels of runoff. To mitigate runoff increases, infiltration wells were constructed in a specific network. The northern part of Yogyakarta is now facing urbanization, and there are many housing blocks that are being constructed complete with the runoff drainage system. This study aims to reveal the role of the infiltration wells network about runoff and its effectiveness concerning the sediment load in the urban area. The drainage networks in the research area function as a watershed, but not with a single outlet. The runoff flow was spreading through the drainage system and did not accumulate on the single outlet. It can be seen that some infiltration wells supposed as a well, which is a place of accumulation of runoff and sediment. Most of the infiltration wells have been filled with sediment up to over a quarter, or even more than half, of their carrying volume. Granulometry measurement shows that the percentage of clay, loam, sand, and gravel in each well tend to differ for every sample. The differences between filled wells and their sediment grain depend on the location of those wells. Maintenance of the wells is required, such as sediment dredging, to rejuvenate them and improve their efficiency
Tweets Flooded in Bandung 2016 Floods: Connecting Individuals and Organizations to Disaster Information
No full textIn a natural disaster, social media has been widely used as one of the primary communication channels to supplement the traditional ones. However, there is a lack of empirical research analyzing this evidence, therefore the purpose of this study is to identify the information shared by Twitter users during the Bandung Flood of 2016 based on period, location, and account ownership. A dataset of 754 tweets was acquired using the NCapture feature in NVivo for content analysis. The study found that social media has significant benefits primarily when sharing information from affected areas to communities outside the region. In more detail, Twitter is used by 28.4%, primarily by those not impacted by the flood, to express good wishes and memorializing. It is because people in the affected area shared firsthand information (23.8%) to them. Then, in addition to citizens, media, NGOs, government, and community leaders who have been found in earlier studies, actors such as civil service organizations (2.9%) and political parties (0.5%) have also participated in disaster relief
Conservation Design and Scenario for Flood Mitigation on Arui Watershed, Indonesia
Get PDFFlooding has been natural disaster in Indonesia and elsewhere. This research is designed to create scenarios and designs conservation to mitigate flooding disaster. Data potential ,vulnerability, and duplicated river covering 0.25% of the targeted flooding area were collected and analysed. Five disain of conservation, natural river as control, river normalization, normalization with gabion stone, river straigtening, and straigtening with gabion stone, are proposed, and main targeted responses of these five scenarios are river current velocity. Effectiveness scenarios were analysed using Anova and Tukey test. The results showed that alignment with gabion stone was the most effective scenario for flooding mitigation since this was the most effective in increasing river current velocity. This could prevent riverbank occurrence of avalanche, accelerate river current, overcome flooding, and prevent future flooding. Other scenarios likes dead clicth ended-hallway, canalization, and riparian reclamation are also possible implemented