scholarly journals Analysis of Environmental Issues with an Application of Civil Complaints: The Case of Shiheung City, Republic of Korea

Author(s):  
Kyunghun Min ◽  
Baysok Jun ◽  
Jaehyuck Lee ◽  
Hong Kim ◽  
Katsunori Furuya

The aim of this study was to better identify the information generated by citizens and to explore the regional social phenomenon whereby higher quality urban services focused on understanding regional issues are promoted. Citizens voluntarily and continuously communicate with local government both online and offline. We wanted to determine how civic information can be applied to urban planning. We selected Shiheung City, Republic of Korea, as our study area, as the city is formed of various types of land use: industrial areas, agricultural land, and residential areas. This area is facing developmental pressure with released development-restricted areas, and has been environmentally damaged by industrial complexes. We conducted a semantic network analysis of the top 10% most commonly used nouns in civil complaints to determine the keywords. Each thematic map we created was based on geographical information to explain the temporary, continuous, and chronic issues. The chronic problems were discussed in relation to the regional development process. The process of identifying and analyzing local issues by analyzing information voluntarily provided by citizens plays an important role in government-led urban management planning and policy formation and can contribute to decision making in the development of future urban policies.

2022 ◽  
Vol 30 (1) ◽  
pp. 747-760
Author(s):  
Fatima Asaad Tayeb ◽  
Ahmed Kareem Jebur ◽  
Husham H. Rashid

Models of digital elevation (DEMs), which provide elevation information for the ground surface of the catchment, are core components of computer-based analyzes for drainage basins. Many production methods are available, including contour interpolation, DGPS (Differential Global Positioning System) interpolation, and digital photogrammetry techniques. However, data on the precision and often contradictory nature of these three techniques are sparse. This study aims at identifying some of the contributing factors and comparing the accuracy of various approaches quantitatively. Changes in land coverage break ecosystem cycles, which may directly affect land ability to sustain human activity resulting in long-term trends of decline and inter-annual variability. It can be monitored at a spatial level of detail to enable the study of human-induced changes. Remote sensing techniques (RS) and geographical information system (GIS) methods have been used to extract the spatial and temporal changes of urban land use in the city of Al-Kut. The land sat satellite images taken in periods encompassing 1997, 2007, and 2017 are used. As a result, the city has lost a large part of its urban specificity and gained randomness and disorder in most of its residential neighborhoods, which was especially exacerbated after the change in the governing system in 2003. The results show an increase of 314% and 219% in industrial and residential areas, respectively, whereas agricultural land and open spaces have decreased by 66 % and 32%. The data analysis reveals a diagnostic relationship between land-use conversion and socio-economic drivers. This research sheds light on the total area changes of the Al-Kut city before and after 2003. It highlights the significant destruction of the city life, which was established over almost three centuries.


Author(s):  
Kadir Temurçin ◽  
Gizem Uluşar

Remote Sensing is a method of examination used in the study of resources on earth without any physical contact. It is a method by which the characteristics of the land below are recorded from space and sky. Determining the characteristics of natural and cultural resources of earth, sustainable exploitation of these resources in the most effective ways and continuous monitoring of the changes in these resources are fundamental to being a developed country. For a sustainable land use and urbanization, data about the unstable natural environment must be collected and monitored at regular intervals, and in order to do these, Remote Sensing (RS) and Geographical Information Systems (GIS) are employed. Images obtained through RS method can be analyzed for the accurate use of the data available. This study seeks to determine the spatial development in and around the city of Isparta through digital imaging processing techniques on different satellite images which belong to different years. Images from satellites ASTER and LANDSAT; information on the quarters in Isparta and the city plan and ERDAS IMAGINE 9.1 program were used in the study. The spatial development of the city of Isparta was studied on the basis of the satellite images obtained in the years 1987, 2000 and 2010 and this study was integrated into GIS. Having analyzed how much change occurred and which way it trended, important information was collected which will be used as source for future studies to be carried out on Isparta. It was observed that while residential areas increased, amount of forested land, and agricultural areas decreased during the periods studied.


2015 ◽  
Vol 3 (3) ◽  
pp. 203 ◽  
Author(s):  
Dessy Eresina Pinem ◽  
Bambang Benediktus Sianipar ◽  
Purnama Purnama

<p class="Abstract"><em>In line with the development </em><em>of the city, the insistence on changes to the natural spaces and undeveloped land</em><em>s, such as </em><em>for housing, offices, shops, roads and parking </em><em>space, and others becomes higher. </em><em>This condition will effect the decreasing of space for agriculture, vegetables planting and horticulture. On the other side, products of agriculture and horticulture are needed for food. A special case in North Sumatera, the development of highlight/featured sector (rubber and palm planting) also need more space. </em> So, <em>thereupon a competition to get land between many activities in North Sumatera. </em><em>The purpose of research is to analyze the need for space in North Sumatra </em><em>Province in comparison to the availability and suitability of </em><em>the land. In this study, the requirement </em><em>of space is calculated by the amount of the food needs of the entire population of North Sumatra Province which is adapted to Target Consumption of Food Top North Sumatra Province in 2025, the amount of land area required for settlements that are tailored to the population of North Sumatra Province in 2025, the amount of land area needed for the development of the production of palm oil plantations </em><em>as the leading sectors of North Sumatra Province, the vast amount of land required for the development of agricultural production and horticulture to meet the needs of residents of North Sumatra Province until</em><em> 2025. Forecasting the number of agricultural production </em><em>is using simple linear regression. Suitability and land capability </em><em>are measured through the depiction </em><em>of Unit Ability Land (</em>SKL<em>) that will show</em><em> the suitability of land </em><em>for protected areas, residential areas, forests, mangroves, cattle grazing, agriculture annuals, perennial plants, and </em><em>others. </em><em>The result</em><em>s of </em><em>the analysis showed that there will be a shortage of land for agriculture in 2025 in the amount of 596,485.44 ha due to the conversion of agricultural land to residential areas, plantations, and others. Based on the suitability of land for agricultural seasonal wet and dry land, </em><em>there are 1,410,363.07 hectares of land are appropriate for planting vegetables</em><em> in 2025. In 2025</em><em>, also will be a shortage of land for housing amounted to 185,638.54 ha. Another finding is that if productivity remains, then by 2025, rice production in North Sumatra Province can meet the needs of rice for food security as long as the harvest of the land until 2025 is provided. </em><em></em></p>


Author(s):  
Mohammad Ali Nekooie ◽  
Saeed Gholizadeh

Despite all the importance of dams, dam failure, always threatens downstream areas by both natural and man-made sources and caused great human and financial losses. Vulnerability analysis is one of the main assessments to achieve a risk map and help policymakers reduce the losses and consequences of the failure. Therefore, this study aims to develop a new integrated hybrid model based on the security vulnerability assessment (SVA) and hydraulic analysis of flood and Source-Pathway-Receptor–Consequences (SPRC) approach. For SVA forms, data were collected by questionnaires survey, and for flood mapping, the open-source software, HEC-RAS was used. Geographical Information System (GIS) was applied to a combination of layers based on the SPRC approach. Five different scenarios were modeled to obtain the flood map due to a dam break. Then, the output data from the HEC-RAS software were transferred to the GIS software to be merged with other data achieved from the survey based on the SVA approach. Finally, the risk map for a case study was developed by this new hybrid approach. The results of the modeling showed that the highest vulnerability was achieved by residential areas and the lowest vulnerability is achieved by agricultural land due to floods by the dam failure.


2019 ◽  
pp. 339-341
Author(s):  
Dmytro Dyadin

Rivers and their floodplains within urban territories are considered as principal objects ofcomplex monitoring for cities with quite developed industry and transport as the city ofKharkiv. Flowing across both industrial and residential areas, rivers take, transport andaccumulate all contaminants from surface runoff, leachate of solid wastes disposals, industrialwater discharge.In 1991 Kharkiv National Academy of Municipal Economy (NAMEK) together with KharkivGeological Survey carried out landscape survey and geochemical analysis of floodplains andriver bed areas of main rivers within the city - Udy, Lopan and Kharkiv. Soils, bottomsediments and plants were sampled and analysed. Next stages of monitoring carried out bystaff and students of NAMEK have shown considerable changes in spatial allocation ofpollution sources at surveyed landscapes and quality changes of contaminants. Uncontrolleddisposal of solid wastes at river banks has increased considerably during last years and thefact gives principle concern to residential and agricultural areas.Obtained data allow making reasonable choice of runoff and wastewater treatmenttechnologies especially phytotechnologies as innovative, low-cost and environmentallyfriendly treatment methods. Monitoring results should be a basement for effective industrialand municipal waste management and as a whole for forming of environmental policy aturbanized areas.


2018 ◽  
Vol 1 (1) ◽  
pp. 135
Author(s):  
Oyinloye M. Ajide ◽  
Olamiju I. Oluwadare

<p><em>African countries in recent times have witnessed an unprecedented level of insecurity. This has made national security threat to be a major issue for the government and has prompted huge allocation of the national budget to security. The objective of this paper is to mark out crime hotspot areas in the central area of Akure metropolis; and examine the rate at which crimes are committed, the surveillance method used and its effectiveness. The research made use of Google Earth imagery and Geographical Information System (GIS) technology to delineate crime hotspots in Akure. A 100m buffer was created around the identified crime hotspots to select houses that are susceptible to the impacts of crime activities in the study area. A structured questionnaire was also used to elicit information on crime, surveillance method, and effect of crime on the people and level of occurrence in the city among others. Findings identified six major crimes in eight hotspot areas; noise, loss of property and threat to life were some of the effects of hotspots on residents. The paper recommends construction/repair of roads in the core residential areas for effective surveillance of hotspots. The use of satellite images to combat crime in the city is also canvassed.</em><em></em></p>


2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Raka Maulana ◽  
Yulianti Pratama ◽  
Lina Apriyanti

<p>Some areas in the city of Bandung is an area that dilitasi by the flow of the river, to prevent the introduction of garbage into the river basin is necessary to note the waste management systems in residential areas along the river. Cidurian river has a length of 24.86 Km along the river flow. Consists of the city of Bandung and Bandung regency. Administrative regions Cidurian River past eight (8) districts, from the region in the District Kiaracondong precisely Village Babakan Babakan Sari and Surabaya populous and the most densely populated. Thus, there should be community-based waste management in the form of a reduction in resources to prevent potential entry of waste into the river basin. Planning waste reduction will be divided into two, namely the reduction of inorganic waste with waste bank then the reduction of organic waste with absorption holes biopori, and bio reactor mini determination of the reduction is determined by the results of the analysis of the sampling covers the composition and garbage, then the result of the measurement characteristics test and analysis results questionnaire.</p>


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