scholarly journals Patterns of Historical and Future Urban Expansion in Nepal

2020 ◽  
Vol 12 (4) ◽  
pp. 628 ◽  
Author(s):  
Bhagawat Rimal ◽  
Sean Sloan ◽  
Hamidreza Keshtkar ◽  
Roshan Sharma ◽  
Sushila Rijal ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Land Use Planning ◽  
Environmental Sustainability ◽  
Urban Areas ◽  
Urban Expansion ◽  
Spatial Models ◽  
Agricultural Conversion ◽  
Historical Land Use ◽  
Landsat Satellite

Globally, urbanization is increasing at an unprecedented rate at the cost of agricultural and forested lands in peri-urban areas fringing larger cities. Such land-cover change generally entails negative implications for societal and environmental sustainability, particularly in South Asia, where high demographic growth and poor land-use planning combine. Analyzing historical land-use change and predicting the future trends concerning urban expansion may support more effective land-use planning and sustainable outcomes. For Nepal’s Tarai region—a populous area experiencing land-use change due to urbanization and other factors—we draw on Landsat satellite imagery to analyze historical land-use change focusing on urban expansion during 1989–2016 and predict urban expansion by 2026 and 2036 using artificial neural network (ANN) and Markov chain (MC) spatial models based on historical trends. Urban cover quadrupled since 1989, expanding by 256 km2 (460%), largely as small scattered settlements. This expansion was almost entirely at the expense of agricultural conversion (249 km2). After 2016, urban expansion is predicted to increase linearly by a further 199 km2 by 2026 and by another 165 km2 by 2036, almost all at the expense of agricultural cover. Such unplanned loss of prime agricultural lands in Nepal’s fertile Tarai region is of serious concern for food-insecure countries like Nepal.

scholarly journals Simulating Urban Land Expansion in the Context of Land Use Planning in the Abuja City-Region, Nigeria

GeoJournal ◽  
2020 ◽  
Author(s):  
Evidence Chinedu Enoguanbhor ◽  
Florian Gollnow ◽  
Blake Byron Walker ◽  
Jonas Ostergaard Nielsen ◽  
Tobia Lakes
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Environmental Sustainability ◽  
Urban Expansion ◽  
Urban Land ◽  
Data Availability ◽  
Sensitive Areas ◽  
Environmentally Sensitive Areas ◽  
City Regions ◽  
Environmentally Sensitive

Abstract In the Global South, including the Sub-Saharan African city-regions, the possible future urban expansion patterns may pose a challenge towards improving environmental sustainability. Land use planning strategies and instruments for regulating urban expansion are faced with challenges, including insufficient data availability to offer insights into the possible future urban expansion. This study integrated empirical data derived from Geographic Information Systems, Remote Sensing, and surveys of experts to offer insights into the possible future urban expansion under spatial planning scenarios to support land use planning and environmental sustainability of city-regions. We analyzed the spatial determinants of urban expansion, calibrated the land cover model using the Multi-Layer Perceptron Neural Network and Markov, and developed three scenarios to simulate land cover from 2017 to 2030 and to 2050. The scenarios include Business As Usual that extrapolates past trends; Regional Land Use Plan that restricts urban expansion to the land designated for urban development, and; Adjusted Urban Land that incorporates the leapfrogged settlements into the land designated for urban development. Additionally, we quantified the potential degradation of environmentally sensitive areas by future urban expansion under the three scenarios. Results indicated a high, little, and no potential degradation of environmentally sensitive areas by the future urban expansion under the Business As Usual, Adjusted Urban Land, and Regional Land Use Plan scenarios respectively. The methods and the baseline information provided, especially from the Adjusted Urban Land scenario showed the possibility of balancing the need for urban expansion and the protection of environmentally sensitive areas. This would be useful to improve the environmental sustainability of the Sub-Saharan African city-regions and across the Global South, where insufficient data availability challenges land use planning.

scholarly journals Land Cover Change in the Abuja City-Region, Nigeria: Integrating GIS and Remotely Sensed Data to Support Land Use Planning

2019 ◽  
Vol 11 (5) ◽  
pp. 1313 ◽  
Author(s):  
Evidence Enoguanbhor ◽  
Florian Gollnow ◽  
Jonas Nielsen ◽  
Tobia Lakes ◽  
Blake Walker
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Urban Development ◽  
Land Cover Change ◽  
Land Use Planning ◽  
Environmental Sustainability ◽  
Urban Expansion ◽  
Developed Countries ◽  
Urban Land Cover ◽  
Land Use Plan

Rapid urban expansion is a significant contributor to land cover change and poses a challenge to environmental sustainability, particularly in less developed countries. Insufficient data about urban expansion hinders effective land use planning. Therefore, a high need to collect, process, and disseminate land cover data exists. This study focuses on urban land cover change detection using Geographic Information Systems and remote sensing methods to produce baseline information in support for land use planning. We applied a supervised classification of land cover of LANDSAT data from 1987, 2002, and 2017. We mapped land cover transitions from 1987 to 2017 and computed the net land cover change during this time. Finally, we analyzed the mismatches between the past and current urban land cover and land use plans and quantified the non-urban development area lost to urban/built-up. Our results indicated an increase in urban/built-up and bare land cover types, while vegetation land cover decreased. We observed mismatches between past/current land cover and the existing land use plan. By providing detailed insights into mismatches between the regional land use plan and unregulated urban expansion, this study provides important information for a critical debate on the role and effectiveness of land use planning for environmental sustainability and sustainable urban development, particularly in less developed countries.

scholarly journals Land-use change and quality of life in residential neighbourhoods: Evidence from Tehran, Iran

GeoScape ◽  
2021 ◽  
Vol 15 (2) ◽  
pp. 104-119
Author(s):  
Navid Forouhar ◽  
Amir Forouhar ◽  
Mahnoosh Hasankhani
Keyword(s):  
Quality Of Life ◽  
Land Use ◽  
Land Use Change ◽  
Land Use Planning ◽  
Urban Areas ◽  
Structured Interview ◽  
Structural Defects ◽  
Residential Areas ◽  
Commercial Development

Abstract Land-use planning generally aims to manage the development of urban areas to address the needs of the communities. In this regard, the multiple and often competing environmental, economic and social conflicts complicate the process of land-use planning. Commercial development in residential neighbourhoods is a common type of land-use conflict that can dramatically exacerbate these potential conflicts. Over the recent decades, many affluent neighbourhoods of Tehran Metropolis (the capital of Iran) have been confronted with an unbridled development of commercial activities within the residential areas. This paper seeks to understand the process of land-use change and its impacts on the residents’ quality of life in an affluent neighbourhood of Tehran Metropolis (Gisha Neighbourhood) by adopting a combination of quantitative and qualitative methods of impact assessment including semi-structured interview, purposeful field survey, and traffic survey. The results yield that incompatible land-use policies of the Tehran Comprehensive Plan and structural defects in the land-use change regulations led to an unbridled process of commercialisation which intensified non-local activities with city/regional service coverage along the main streets of Gisha Neighbourhood. The analysis demonstrates that despite improving the accessibility of residents to urban facilities and reducing their travel time/cost, the process of land-use changes in Gisha Neighbourhood declined the residents’ quality of life by its considerable negative effects on socio-cultural structures, landuse patterns, traffic flow, and human health in the residential areas of the neighbourhood.

scholarly journals SPATIOTEMPORAL LAND USE CHANGE ANALYSIS AND FUTURE URBAN GROWTH SIMULATION USING REMOTE SENSING: A CASE STUDY OF ANTALYA

2020 ◽  
Vol XLIII-B3-2020 ◽  
pp. 657-662
Author(s):  
N. Aslan ◽  
D. Koc-San
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Urban Growth ◽  
Urban Areas ◽  
Learning Algorithm ◽  
Urban Expansion ◽  
Atmospheric Correction ◽  
Landsat 8 ◽  
Land Use Pattern ◽  
Use Pattern

Abstract. The objectives of this study are: to create land-use maps by 5-year interval from 1995 to 2015, to analyse the land use change and urban development, and to estimate future land-use pattern and urban growth for the years: 2030, 2045 and 2060. Antalya, which is the 5th biggest city of Turkey, was selected as study area. In this study, there are basically three stages: (i) preprocessing and preparing additional bands, (ii) spatiotemporal land use detection using image classification and (iii) land use simulation using urban growth models. Firstly, atmospheric correction was applied to the Landsat 5 TM and Landsat 8 OLI images and land-cover indices, ASTER Global Digital Elevation Model (GDEM), and Nighttime data were prepared to use them as additional bands during the classification process. Secondly, Landsat images were classified using Random Forest (RF) machine-learning algorithm. Thirdly, urban simulations were performed for the years 2005, 2010, and 2015 and land-use pattern and urban growth was estimated for the years 2030, 2045 and 2060. The RF classification accuracies range from 84.44% to 92.82%. The urban areas increased from 49.56 km2 to 96.25 km2 from 1995 to 2015. The simulation accuracies were computed above 80%. According to the 2030, 2045 and 2060 simulation results, the urban areas were computed as 133.61 km2, 148.27 km2 and 156.85 km2, respectively. As a result, it was seen that the urban area of Antalya has almost doubled between the years 1995–2015 and the urban expansion is expected to continue increasing up to 1960.

scholarly journals An Application for Regional Coastal Erosion Processes in Urban Areas: A Case Study of the Golden Horseshoe in Canada

2021 ◽  
Author(s):  
Eric Vaz ◽  
Lisa Bowman
Keyword(s):  
Land Use ◽  
North America ◽  
Environmental Sustainability ◽  
Urban Areas ◽  
Urban Expansion ◽  
Land Use Changes ◽  
Urban Heat Islands ◽  
Anthropogenic Activity ◽  
Heat Islands ◽  
Erosion Processes

Urban growth has had unprecedented consequences on environmental sustainability and anthropogenic activity. The eroding coastlines throughout the world are subject to the massive expansion of urban areas and the accountability of sustainable hinterland landscapes. The Golden Horseshoe is Canada’s fastest growing region extending from the Niagara Peninsula and one of the most active economic regions in North America. This paper adopts a combined assessment of land use change and transitions in the coastal stretches of the Greater Golden Horseshoe. Comprising the urban expansion of the region between 1990 and 2011, an integrated assessment was carried out to: (i) detect changes in coastal lines along Lake Ontario; (ii) derive land use changes along the coast through spatial accounting matrices; and (iii) integrate climate change data for a combined assessment of future erosion loci. Visible erosion was found between the decade of 1990 and 2000, while certain areas have shown coastal recession in the southern region. The maximum recession was found to be 30 m, with an increasing urban sprawl of 19.8% between 1990 and 2000. A combined temperature increase of 2 °C over the coming decades brings the increase in urban heat islands leading to the importance of combined land policies to mitigate the common problem of erosion in vulnerable urban stretches and liveability concerning spatial resilience of growing urban regions in North America.

scholarly journals MONITORING URBAN LAND COVER/LAND USE CHANGE IN ALGIERS CITY USING LANDSAT IMAGES (1987–2016)

2017 ◽  
Vol XLII-2/W7 ◽  
pp. 1083-1090 ◽  
Author(s):  
B. Bouchachi ◽  
Y. Zhong
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Land Cover ◽  
Environmental Sustainability ◽  
Urban Areas ◽  
Driving Forces ◽  
Urban Land ◽  
Support Vector ◽  
Urban Land Cover ◽  
The Impact

Monitoring the Urban Land Cover/Land Use change detection is important as one of the main driving forces of environmental change because Urbanization is the biggest changes in form of Land, resulting in a decrease in cultivated areas. Using remote sensing ability to solve land resources problems. The purpose of this research is to map the urban areas at different times to monitor and predict possible urban changes, were studied the annual growth urban land during the last 29 years in Algiers City. Improving the productiveness of long-term training in land mapping, were have developed an approach by the following steps: 1) pre-processing for improvement of image characteristics; 2) extract training sample candidates based on the developed methods; and 3) Derive maps and analyzed of Algiers City on an annual basis from 1987 to 2016 using a Supervised Classifier Support Vector Machine (SVMs). Our result shows that the strategy of urban land followed in the region of Algiers City, developed areas mostly were extended to East, West, and South of Central Regions. The urban growth rate is linked with National Office of Statistics data. Future studies are required to understand the impact of urban rapid lands on social, economy and environmental sustainability, it will also close the gap in data of urbanism available, especially on the lack of reliable data, environmental and urban planning for each municipality in Algiers, develop experimental models to predict future land changes with statistically significant confidence.

scholarly journals An Application for Regional Coastal Erosion Processes in Urban Areas: A Case Study of the Golden Horseshoe in Canada

2021 ◽  
Author(s):  
Eric Vaz ◽  
Lisa Bowman
Keyword(s):  
Land Use ◽  
North America ◽  
Environmental Sustainability ◽  
Urban Areas ◽  
Urban Expansion ◽  
Land Use Changes ◽  
Urban Heat Islands ◽  
Anthropogenic Activity ◽  
Heat Islands ◽  
Erosion Processes

Urban growth has had unprecedented consequences on environmental sustainability and anthropogenic activity. The eroding coastlines throughout the world are subject to the massive expansion of urban areas and the accountability of sustainable hinterland landscapes. The Golden Horseshoe is Canada’s fastest growing region extending from the Niagara Peninsula and one of the most active economic regions in North America. This paper adopts a combined assessment of land use change and transitions in the coastal stretches of the Greater Golden Horseshoe. Comprising the urban expansion of the region between 1990 and 2011, an integrated assessment was carried out to: (i) detect changes in coastal lines along Lake Ontario; (ii) derive land use changes along the coast through spatial accounting matrices; and (iii) integrate climate change data for a combined assessment of future erosion loci. Visible erosion was found between the decade of 1990 and 2000, while certain areas have shown coastal recession in the southern region. The maximum recession was found to be 30 m, with an increasing urban sprawl of 19.8% between 1990 and 2000. A combined temperature increase of 2 °C over the coming decades brings the increase in urban heat islands leading to the importance of combined land policies to mitigate the common problem of erosion in vulnerable urban stretches and liveability concerning spatial resilience of growing urban regions in North America.

Land use and cover change (LUCC) and migration in Sukoharjo, Indonesia

2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Anang Pra Yogi ◽  
Bhimo Rizky Samudro ◽  
Albertus Maqnus Soesilo ◽  
Yogi Pasca Pratama
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Urban Areas ◽  
Agricultural Land ◽  
Urban Expansion ◽  
Descriptive Analysis ◽  
Population Group ◽  
School Level ◽  
Content Type ◽  
Land Use And Cover

Purpose This study aims to provide descriptive analysis on urbanization pattern in Sukoharjo Regency and also its correlation to land use and cover change (LUCC) issue. This becomes more relevant because the authors find that there are few studies conducted regarding the topic. Consider again the importance role of Sukoharjo Regency as an area that provides supporting food supply, LUCC particularly in agriculture land became even more crucial. Design/methodology/approach This study uses literature reviews and descriptive analysis. Data for this study are obtained from previous studies and statistical data from Central Statistical Bureau. Findings Sukoharjo Regency proved as an interesting migration destination for some group of population. The population group particularly come from Surakarta city (growth core) as a form of urban sprawl or urban expansion. Migrant population live in Sukoharjo Regency are mostly a population group with a productive age range and generally with high-school or vocational school level. Moreover, their main reason to migrate is the availability of job opportunities. Regarding LUCC, migrant populations that come to Sukoharjo Regency apparently have property with ownership certification. Housing area development, particularly concentrated in the district, was located close to the borderline Surakarta city. Originality/value This research contributes to the analysis of land use change trends in peri-urban areas caused by migration. The results of this study can be used for further policy making to overcome the dilemma of land use change, especially those that occur on agricultural land.

scholarly journals Spatial Monitoring of Urban Expansion Using Satellite Remote Sensing Images: A Case Study of Amman City, Jordan

2019 ◽  
Vol 11 (8) ◽  
pp. 2260 ◽  
Author(s):  
Hussam Al-Bilbisi
Keyword(s):  
Land Use ◽  
Urban Area ◽  
Urban Growth ◽  
Urban Areas ◽  
Urban Expansion ◽  
Capital City ◽  
Annual Rate ◽  
Average Annual Rate ◽  
Rate Of Increase ◽  
Landsat Satellite

Amman, the capital city of Jordan, faces urbanization challenges and lacks reliable data for urban planning. This study is aimed at assessing, monitoring, and mapping urban land cover using multitemporal Landsat satellite images. Four different land use/cover maps were produced; periods of over ten years between 1987 and 2017 (i.e., in 1987, 1997, 2007, and 2017) were used to evaluate and analyze urban expansion visually and quantitatively. Supervised classification technique followed by the post classification comparison change detection approach was used to analyze images. Over the past three decades, the urban area has increased rapidly in Amman. It increased by 90.78 km2, from 149.08 km2 in 1987 to 237.86 km2 in 2017, with an average annual rate of increase of 2.03%. Urban area increases were significantly higher in the first 10 years of the study period (i.e., from 1987 to 1997), during which the average annual rate of increase reached 3.33%, while it was 2.04% for the last two decades of the study period (i.e., from 1997 to 2017). Urban growth in Amman generally occurred along transport routes away from the core of Amman, and as a result, this growth led to the expansion of urban areas into other types of land use/cover classes, particularly vegetation areas. The spatial analysis of urban expansion and trends of urban growth in Amman could provide the required input data for the urban modeling of the city.

scholarly journals Implications of Present Land Use Plan on Urban Growth and Environmental Sustainability in a Sub Saharan Africa City

2017 ◽  
Vol 4 (2) ◽  
Author(s):  
Zakka Solomon Dyachia ◽  
Ariva Sugandi Permana ◽  
Chin Siong Ho ◽  
Adams Ndalai Baba ◽  
Oluwagbemiga Paul Agboola
Keyword(s):  
Land Use ◽  
Urban Development ◽  
Urban Growth ◽  
Land Use Planning ◽  
Environmental Sustainability ◽  
Urban Expansion ◽  
Sub Saharan Africa ◽  
Modern Concept ◽  
Sub Saharan ◽  
The City

Land use, urban development and environmental sustainability have become an interesting research arena as urban development would change the city landscape as well as generate environmental degradation. This paper looks at the missing link between land use planning and urban growth, and it implications for environmental sustainability in a selected sub Saharan Africa city of Kaduna, Nigeria. We assessed urban growth from historical GIS data of the city to evaluate the urban expansion. At the same time, regression analysis was used to established relationship between carbon emission and traffic volume in the city. A city characterized by weak land use planning has created a gap leading to uncoordinated land use planning and uncontrolled physical growth. A steady increase of built up area of 8,400.31 hectares in 1982 to an area of 17,120.5 hectares in 2015 can be a reflection of the presence of uncontrolled urban expansion. The lack of coordination between land use planning and urban growth has resulted to environmental ills within the city. One among the ills, is ubiquitous traffic congestion within the city leading to high carbon (CO2) emission. Findings shows a strong connection between emission and volume of traffic. In addition to findings, is the decline of green areas in the city. By this findings, it is suggested that the modern concept of land use planning which embraces flexibility, public participation and integration of environmental issues should be entrenched and allow to take the lead in the process of urban growth.

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