scholarly journals USO DO SOLO E DEGRADAÇÃO AMBIENTAL: estudo de caso da bacia do Mata Fome em Belém, Pará

2017 ◽  
Vol 2 (7) ◽  
pp. 162
Author(s):  
Marcos Jonatas Damasceno da Silva ◽  
Luziane Mesquita da Luz
Keyword(s):  
Urban Space ◽  
Environmental Degradation ◽  
Health Risks ◽  
Urban Areas ◽  
Satellite Image ◽  
Land Uses ◽  
Vegetation Water ◽  
The Relationship ◽  
Soil Changes

São diversos os problemas presentes nos espaços das cidades brasileiras, principalmente nos grandes espaços urbanos. Um desses problemas é a degradação do meio ambiente decorrente de intervenções não planejadas nesses espaços. Nesse sentido, este trabalho tem o propósito de analisar a relação entre a produção do espaço urbano, que atribui diferentes usos ao solo e a degradação do meio ambiente na Bacia do Mata Fome em Belém, Pará. Além disso, foi realizado um mapeamento do uso do solo da área de estudo, onde foi utilizada a imagem do satélite Ikonos de 2006. Os resultados deste trabalho evidenciaram que a produção do espaço urbano na Bacia do Mata Fome e os diversos usos do solo, provocaram degradação ambiental, por desencadearem a destruição da cobertura vegetal, poluição da água e do solo, mudanças na topografia dos terrenos, inundações, riscos à saúde, entre outros danos.Palavras-chave: Meio ambiente; Urbanização; Bacia hidrográfica; Poluição.USE OF SOIL AND ENVIRONMENTAL DEGRADATION: a case study of Mata Fome basin in Belém, ParáABSTRACTThere are several problems present in the spaces of brazilian cities, especially in large urban areas. One such problem is the degradation of the environment due to unplanned interventions in these spaces. In this sense, this work aims to analyze the relationship between the production of urban space that assigns different uses to soil and environmental degradation in the Mata Fome Watershed in Belém, Pará. In addition, we carried out a mapping of the use of soil of the study area where the satellite image Ikonos 2006. The results of this study indicated that the production of urban space in Mata Fome Watershed and various land uses, caused environmental degradation was used to trigger the destruction of vegetation, water pollution and soil changes in the topography of the land, floods, health risks and other damage.Keywords: Environment; Urbanization; Hydrographic watershed; Pollution.USO DEL SUELO Y DEGRADACIÓN AMBIENTAL: estudio del caso de la cuenca del Mata Fome en Belém, ParáRESUMEN Hay varios problemas presentes en los espacios de las ciudades brasileñas, especialmente en las grandes áreas urbanas. Uno de estos problemas es la degradación del medio ambiente debido a las intervenciones no planificadas en estos espacios. En este sentido, este trabajo tiene como objetivo analizar la relación entre la producción del espacio urbano, que asigna a los diferentes usos del suelo y la degradación del medio ambiente en la Cuenca del Mata Fome en Belém, Pará. Además, se realizó un mapeo del uso del suelo de la zona de estudio, donde la imagen de satélite Ikonos 2006. Los resultados de este estudio indicaron que la producción del espacio urbano en la Cuenca del Mata Fome y diversos usos de la tierra causado la degradación ambiental se utilizó para desencadenar la destrucción de la vegetación, la contaminación del agua y los cambios de suelo en la topografía del terreno, inundaciones, riesgos para la salud, y otros daños.Palabras clave: Medio ambiente; Urbanización; Cuenca hidrográfica; Contaminación.

scholarly journals Far Beyond the Gay Village: LGBTQ Urbanism and Generation in Montréal’s Mile End

2021 ◽  
pp. 289-306
Author(s):  
Julie A. Podmore
Keyword(s):  
Young Adult ◽  
Social Class ◽  
Gender Identity ◽  
Inner City ◽  
Urban Space ◽  
Qualitative Case Study ◽  
And Gender ◽  
The Relationship

AbstractResearch on LGBTQ neighbourhood formation in the urban West suggests that new patterns of community and identity are reshaping the queer inner-city and its geographies. As gay village districts “decline” or are “de-gayed” and new generations “dis-identify” with the urban ideals that once informed their production, LGBTQ subcultures are producing varied alternatives in other inner-city neighbourhoods. Beyond the contours of ethno-racialization and social class, generational interpretations of LGBTQ urbanism—subcultural ideals regarding the relationship between sexual and gender identity and its expression in urban space—are central to the production of such new inner-city LGBTQ subcultural sites. This chapter provides a qualitative case study Montréal’s of Mile End, an inner-city neighbourhood that, by the early 2010s, was touted as the centre of the city’s emerging queer subculture. Drawing on a sample of young-adult (22 to 30 years) LGBTQ-identified Mile Enders (n = 40), it examines generational shifts in perceptions of sexual and gender identity, queer community and neighbourhoods. The chapter concludes with a discussion of the implications of queer Mile End for theorizing the contemporary queer inner-city.

scholarly journals The Relationship between User Perception and Preference of Greenway Trail Characteristics in Urban Areas

2019 ◽  
Vol 11 (16) ◽  
pp. 4438 ◽  
Author(s):  
Junga Lee ◽  
Hyung-Sook Lee ◽  
Daeyoung Jeong ◽  
C. Scott Shafer ◽  
Jinhyung Chon
Keyword(s):  
Multiple Regression ◽  
Urban Areas ◽  
Regression Analyses ◽  
User Perception ◽  
Virtual Tour ◽  
Significant Difference ◽  
Vegetation Water ◽  
Study Sites ◽  
The Relationship ◽  
Water Amount

Greenways provide multiple benefits for trail users’ individual experiences based on users’ background environment and their perceptions of characteristics such as the trail width, vegetation, water, and facilities. Although greenway trail characteristics are important factors that affect users’ preferences, only a few studies have examined individuals’ experiences of greenways based on their perceptions and preferences. The purpose of this study is to examine how greenway trails can be designed to improve users’ experiences in relation to their perceptions and preferences by considering trail characteristics. We examine the relationship between greenway trail characteristics and likability using t-tests as well as correlation and multiple regression analyses. In the current study, virtual tour surveys of greenway users were conducted, with two urban greenway trails as the study sites: Town Lake Trail in Austin, Texas, and Buffalo Bayou Trail in Houston, Texas. Perceptions of all eight greenway trail characteristics, except for background buildings, were significantly different between the trails, and a significant difference in likability was found for five characteristics (the presence of water, trail facilities, trail width, adjacent automobile traffic, and built structures on the trail). In addition, the results of the correlation and multiple regression analyses revealed that the presence of water, amount of vegetation, automobile traffic, and built structures were correlated with likability. These findings suggest that designing appropriate types of greenway trails can help increase users’ likeability ratings of urban greenways. This study contributes to the enhancement of trail environments by providing strategies for practitioners to effectively design and manage greenways.

scholarly journals NDVI Based Assessment of Land Cover Changes Using Remote Sensing and GIS (A case study of Srinagar district, Kashmir)

2020 ◽  
Author(s):  
Perminder Singh ◽  
Ovais Javeed
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Urban Areas ◽  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Satellite Image ◽  
Spectral Signature ◽  
Landsat 8 ◽  
Thematic Mapping

Normalized Difference Vegetation Index (NDVI) is an index of greenness or photosynthetic activity in a plant. It is a technique of obtaining  various features based upon their spectral signature  such as vegetation index, land cover classification, urban areas and remaining areas presented in the image. The NDVI differencing method using Landsat thematic mapping images and Landsat oli  was implemented to assess the chane in vegetation cover from 2001to 2017. In the present study, Landsat TM images of 2001 and landsat 8 of 2017 were used to extract NDVI values. The NDVI values calculated from the satellite image of the year 2001 ranges from 0.62 to -0.41 and that of the year 2017 shows a significant change across the whole region and its value ranges from 0.53 to -0.10 based upon their spectral signature .This technique is also  used for the mapping of changes in land use  and land cover.  NDVI method is applied according to its characteristic like vegetation at different NDVI threshold values such as -0.1, -0.09, 0.14, 0.06, 0.28, 0.35, and 0.5. The NDVI values were initially computed using the Natural Breaks (Jenks) method to classify NDVI map. Results confirmed that the area without vegetation, such as water bodies, as well as built up areas and barren lands, increased from 35 % in 2001 to 39.67 % in 2017.Key words: Normalized Difference Vegetation Index,land use/landcover, spectral signature 

scholarly journals Changes in the Meaning of Primary Elements of the European Region in Medan City, Sumatra Island, Indonesia

2018 ◽  
Vol 7 (4.7) ◽  
pp. 453 ◽  
Author(s):  
Ully Irma Maulina Hanafiah ◽  
Antariksa . ◽  
Purnama Salura
Keyword(s):  
Urban Area ◽  
Urban Space ◽  
European Region ◽  
Function Form ◽  
City Area ◽  
Sumatra Island ◽  
The Relationship ◽  
North Sumatra ◽  
The City

The urban area consists of systems and sub-systems that have relationships with each other like a network. The development and changes in urban space are believed to influence the relationship between systems and also the meaning of all elements forming the urban spatial area. This also happens to the primary elements which are signs for the urban area. Given the changes in the city area, the existence of the primary elements as signs of a city area needs to be explored. The study is carried out on the primary elements in the city area which has a relatively complete city function. The case study is the European region in the center of Medan city, the capital of North Sumatra Province, Indonesia. This is a descriptive-analytical and interpretative-qualitative research. It aims to reveal all relationships that are intertwined in the function, form and meaning of the primary elements. The results of the study concluded that changes in primary elements as signs of the region shifted from symbolic meaning to pragmatic meaning.   

scholarly journals ACHIEVING SUSTAINABLE URBANIZATION OF THE NATIONAL THEATRE IN LONDON THROUGH CHANGE OF USE AND FUNCTIONS OF ARCHITECTURE

2021 ◽  
Vol 12 (23) ◽  
pp. 11-21
Author(s):  
Danijela Rogina ◽  
◽  
Radivoje Dinulović ◽  
Keyword(s):  
Urban Space ◽  
Green Infrastructure ◽  
Urban Areas ◽  
Public Spaces ◽  
Urban Spaces ◽  
Urban Forms ◽  
National Theatre ◽  
Sustainable Urbanization ◽  
Key Aspects

The human population is currently on the rise and most Europeans live in urban areas, leading to increased urbanization. The change comes with its challenges, as cities, architecture, and urban spaces need to become more fluid, multi-functional, and innovative. This paper examines whether a change of use of public spaces, and functions of architectural and urban forms, can be used as an element in the implementation of sustainable urbanization. The theoretical framework of this paper focuses on literature findings relating to identified key aspects such as innovative approaches in changes of use — recycling and upcycling, green infrastructure and financial aspects, concepts of “right of the place”, and public participation. These aspects are addressed on both theoretical and practical levels, with the National Theatre in London as a case study. Findings convey that the change of use of spaces can be utilized to achieve sustainable urbanization, together with the management of functions and uses of architectural and urban forms. However, further research is needed with various stakeholders to identify a solid and inherent database, as a foundation on which the most optimal urban spaces would emerge, by identifying new functions and uses of urban space and architecture.

Classification of Rural Areas by Typology : A Case Study of Yunlin & Chiayi, Taiwan

2020 ◽  
Author(s):  
Hsin Yang ◽  
Hsueh-Sheng Chang
Keyword(s):  
Rural Areas ◽  
Urban Areas ◽  
Spatial Planning ◽  
Economic Structure ◽  
Space Structure ◽  
Overlay Analysis ◽  
The Past ◽  
The Relationship

<p>In the past, Taiwan's spatial planning has focused on the development of urban areas and overlooked rural areas, which has led to difficulty in promoting rural-urban relationships. This study suggests that rural areas should not just be seen as single entities, but as a collection of distinct areas. Since it is becoming important to develop a new spatial planning in Taiwan, this study examines territorial space structure from a regional perspective, with a focus on the development of the rural areas of Yunlin & Chiayi. Consequently, this study aims to classify rural areas by the procedure of typology, in terms of their development dynamics, location, and economic structure, selecting appropriate indicators for each focus of inquiry. The study then uses cluster analysis, accessibility analysis and overlay analysis methods to classify information about these rural areas. This approach will show the differences in their spatial characteristics along with their histories of development through time, as well as the relationship between these rural areas and the overall region in which they are situated. It is hoped that this research will provide a more accurate description than currently exists of the rural areas studied in this paper, and that this information will be a useful resource to those who are developing new plans and policies, so that better integration can occur between urban and rural in Taiwan.</p>

scholarly journals An Analysis of Relationship between the Environment and User’s Behavior on Unimproved Streets: A Case Study of Da Nang City, Vietnam

2018 ◽  
Vol 11 (1) ◽  
pp. 83 ◽  
Author(s):  
Duy Do ◽  
Suguru Mori ◽  
Rie Nomura
Keyword(s):  
Public Space ◽  
Human Activities ◽  
Urban Areas ◽  
Open Space ◽  
The Sustainable Development ◽  
Behavior Setting ◽  
Street Space ◽  
Type C ◽  
The Relationship

One of the most insoluble problems confronted by urban areas in developing countries is the shortage of open space; street space allows daily human activities, promotes social interaction, and is seen as a precondition for the sustainable development of the community. Although some seemingly public space is also built up in Vietnam, street space is often where resident’s go to perform activities. This research aims at studying behaviors of users in old street space and the interaction with existing physical settings; as an input to future renovation and the development of street space in a manner that respects the cultural and social context of the Vietnamese people. User’s behaviors in streets and physical characteristics of space were collected and processed in accordance with theories of behavior setting and proxemics using some methods including place-centered behavioral mapping (PcBM) and visual encounter surveys (VES). The analysis showed that three types of behavior, including (1) Type A where various frequent activities occurred, (2) Type B which discouraged most human activities, and (3) Type C where neither frequent nor infrequent behaviors can represent environmental behavior patterns in the old street spaces of Vietnam and for each of these types of patterns improvements have been proposed by organizing street and pavements layouts detailed in this paper. The proposed improvements are based on the relationship between human behaviors and properties of the street space to assist designers, administers, and authorities in renovating and developing better and more sustainable street space.

SPATIAL PATTERNS OF ECONOMIC RENTS: DEVELOPING SUVARNABHUMI INTERNATIONAL AIRPORT, THAILAND

2016 ◽  
Vol 11 (03) ◽  
pp. 1650014
Author(s):  
CHAKARIN BEJRANANDA ◽  
YUK LEE ◽  
THANCHANOK BEJRANANDA
Keyword(s):  
Land Use ◽  
Air Transportation ◽  
Land Values ◽  
Urban Structure ◽  
Land Value ◽  
Land Uses ◽  
International Airport ◽  
The Relationship

With the rise of the importance of air transportation in the 21st century, the role of economics in airport planning and decision-making has become crucial to the urban structure and land values. This paper examines the relationship between an airport and its impact on the distribution of urban land uses and land values by applying the Alonso’s bid-rent model. Using Suvarnabhumi International Airport as a case study, the analysis was made over three different time periods of airport development. The statistical results confirm that: (i) Alonso’s model can be used to explain the impacts of the airport only for the northeast quadrant of the airport; (ii) proximity to the airport shows an inverse relationship with the land value of all six types of land use activities through three periods of time; and (iii) the land value for commercial land use is the most sensitive to the location of the airport compared to other types of land use activities.

scholarly journals Evaluating the Relationship between Park Features and Ecotherapeutic Environment: A Comparative Study of Two Parks in Istanbul, Beylikdüzü

2021 ◽  
Vol 13 (9) ◽  
pp. 4600
Author(s):  
Didem Kara ◽  
Gülden Demet Oruç
Keyword(s):  
Urban Space ◽  
Urban Areas ◽  
User Experiences ◽  
Human Relationships ◽  
Urban Green ◽  
Human Psychology ◽  
Urban Green Areas ◽  
Green Areas ◽  
Physical Attributes ◽  
The Relationship

The impacts of problems related to dense, unplanned, and irregular urbanization on the natural environment, urban areas, and humankind have been discussed in many disciplines for decades. Because of the circular relationship between humans and their environment, human health and psychology have become both agents and patients in interactions with nature. The field of ecopsychology investigates within this reciprocal context the relationship between human psychology and ecological issues and the roles of human psychology and society in environmental problems based on deteriorated nature–human relationships in urbanized areas. This approach has given rise to ecotherapy, which takes a systemic approach to repairing this disturbed nature–human relationship. This study aims to uncover the relationship between the physical attributes of urban green areas and their potential for providing ecotherapy service to users, first by determining the characteristics of ecotherapeutic urban space and urban green areas given in studies in the ecopsychology and ecotherapy literature, and then by conducting a case study in two urban parks from the Beylikdüzü District of the Istanbul Metropolitan Area. The impacts of these parks’ changing physical characteristics on user experiences are determined through a comparison of their physical attributes and the user experiences related to their ecotherapy services.

scholarly journals Urban land use effect analysis on the level of noise pollution using satellite and GIS technologies: A case study in Tehran city

2020 ◽  
Keyword(s):  
Land Use ◽  
Remote Sensing Data ◽  
Noise Pollution ◽  
Urban Land ◽  
Urban Land Use ◽  
Land Uses ◽  
Effect Analysis ◽  
Gis Technologies ◽  
The Relationship

<p>We utilized satellite and GIS technologies to address the relationship between urban land uses and Noise Pollution (NP) in one of the most crowded regions of Tehran city. Leq was determined in 170 stations of the studied area and an acoustic map was created. Moreover, using satellite remote sensing data and a land use map, the density map for nine types of the most important urban land use was provided and the relationship between different land use densities and NP was investigated. We found that the investigated region was highly polluted and the NP level was higher in the morning (76.29±5.61 dB[A]) and afternoon (76.46±4.88 dB[A]) in comparison to the noon period. Furthermore, the prepared acoustic map revealed that in the east and southwest of the studied area, the NP was highest and lowest, respectively. Also, cultural (73.48±4.7 dB[A]) and parking (79.02±4.3 dB[A]) areas had the lowest and highest levels of Leq. Also, the high density of road, commercial, industrial, mixed commercial and residential and parking land uses had a direct significant relationship with Leq and this relation was inverse for green space. It was concluded that land use variations significantly affect the NP levels and it can be utilized to predict and manage the NP in different cities.</p>

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