scholarly journals Evaluating the Effectiveness of Ontario’s 2005 Greenbelt Plan at Preserving the Protected Countryside from Urbanization and Non-Renewable Resource Mining

2021 ◽  
Author(s):  
Jessie Smith
Keyword(s):  
Urban Sprawl ◽  
Agricultural Land ◽  
Urban Expansion ◽  
Renewable Resource ◽  
Resource Extraction ◽  
Mining Operations ◽  
Agricultural Resources ◽  
Combat Climate Change ◽  
Land Changes ◽  
Aggregate Resource

Conservation has been widely discussed as the best way to combat climate change and environmental degradation. A cornerstone of conservation is Sustainable Development, which involves mitigating the damage of urbanization and urban sprawl, and the resulting loss of agricultural resources. In response, Ontario developed the Greenbelt Act in 2005 to ensure that Ontario’s Agricultural Land base was protected from urbanization and development. This study analyzed land use change within the Greenbelt’s Protected Countryside, to determine if the lands were protected during the implementation of the Greenbelt Plan (2005 -2017), and the ten years prior without Greenbelt policy in effect. Using remote sensing change detection applications, it was determined that residential expansion within settlement areas, and aggregate mining operations within the Protected Countryside contribute to urban expansion and loss of prime agricultural land. Changes in aggregate resource extraction policy are recommended to reduce the use and reliance of virgin aggregate in Ontario.

scholarly journals Evaluating the Effectiveness of Ontario’s 2005 Greenbelt Plan at Preserving the Protected Countryside from Urbanization and Non-Renewable Resource Mining

2021 ◽  
Author(s):  
Jessie Smith
Keyword(s):  
Urban Sprawl ◽  
Agricultural Land ◽  
Urban Expansion ◽  
Renewable Resource ◽  
Resource Extraction ◽  
Mining Operations ◽  
Agricultural Resources ◽  
Combat Climate Change ◽  
Land Changes ◽  
Aggregate Resource

Conservation has been widely discussed as the best way to combat climate change and environmental degradation. A cornerstone of conservation is Sustainable Development, which involves mitigating the damage of urbanization and urban sprawl, and the resulting loss of agricultural resources. In response, Ontario developed the Greenbelt Act in 2005 to ensure that Ontario’s Agricultural Land base was protected from urbanization and development. This study analyzed land use change within the Greenbelt’s Protected Countryside, to determine if the lands were protected during the implementation of the Greenbelt Plan (2005 -2017), and the ten years prior without Greenbelt policy in effect. Using remote sensing change detection applications, it was determined that residential expansion within settlement areas, and aggregate mining operations within the Protected Countryside contribute to urban expansion and loss of prime agricultural land. Changes in aggregate resource extraction policy are recommended to reduce the use and reliance of virgin aggregate in Ontario.

scholarly journals Linking Social Perception and Provision of Ecosystem Services in a Sprawling Urban Landscape: A Case Study of Multan, Pakistan

2019 ◽  
Vol 11 (3) ◽  
pp. 654 ◽  
Author(s):  
Syed Manzoor ◽  
Aisha Malik ◽  
Muhammad Zubair ◽  
Geoffrey Griffiths ◽  
Martin Lukac
Keyword(s):  
Land Use ◽  
Ecosystem Services ◽  
Urban Sprawl ◽  
Land Use Planning ◽  
Public Perception ◽  
Agricultural Land ◽  
Urban Expansion ◽  
Land Use Changes ◽  
Urban Ecosystem ◽  
Arid Zones

Urban sprawl causes changes in land use and a decline in many ecosystem services. Understanding the spatial patterns of sprawl and exploration of citizens’ perception towards the sporadic urban expansion and its impacts on an ecosystem to deliver services can help to guide land use planning and the conservation of the urban ecosystem. Here, we spatially examined land use changes in Multan, Pakistan, and investigated public perception about urban sprawl and its impacts on the quality and provision of ecosystem services, using a survey instrument. The spatial analysis of the historical land cover of Multan indicated an exponential expansion of the city in the last decade. Large areas of natural vegetation and agricultural land were converted to urban settlements in the past two decades. The citizens of Multan believe that the quality and provision of ecosystem services have declined in the recent past and strongly correlate the deteriorating ecosystem services with urban sprawl. Education and income levels of the respondents are the strongest predictors of urban ecosystem health literacy. Citizens associated with laborious outdoor jobs are more sensitive to the changes in ecosystem services. We concluded that the rapidly expanding cities, especially in the tropical arid zones, need to be prioritized for an increase in vegetation cover, and economically vulnerable settlements in these cities should be emphasized in climate change mitigation campaigns.

scholarly journals Land Use Change Detection and Urban Sprawl Monitoring in Metropolitan Area of Jakarta (Jabodetabek) from 2001 to 2015

2019 ◽  
Author(s):  
Ismail Fata Robbany ◽  
Arash Gharghi ◽  
Karl-Peter Traub
Keyword(s):  
Urban Area ◽  
Metropolitan Area ◽  
Urban Sprawl ◽  
Urban Areas ◽  
Agricultural Land ◽  
Central City ◽  
Urban Expansion ◽  
South East Asia ◽  
The World ◽  
Increasing Demand

Being 13th largest city in the world makes Jakarta as a fascinating city in South East Asia. Its surrounding regions are included in a particular metropolitan area called “Jabodetabek”. Population growth in this metropolitan area about 10 million only in 15 years from 2000 to 2015. Consequently, loss of vegetation and agricultural land, less water resources, increasing demand for housing and transportation infrastructure as the effect of this ever-growing population take place. This phenomenon can be detected using Landsat satellites images. The settlement or urban area in Jabodetabek shows a huge increase in percentage from 2001 to 2015, so much that the urban area is the dominant land cover and reaches up to 61 percent of Jabodetabek in year 2015. Moreover settlement density in Jabodetabek (ring zones 25 to 45 km from central city) shows an increase of more than 20% urban areas in year 2015. Furthermore, the result of compactness reveals that this urban expansion in Jabodetabek was spread out from 2001 to 2008 and became more compacted by 2015.

scholarly journals Evaluating Spatial Scenarios for Sustainable Development in Quito, Ecuador

2020 ◽  
Vol 9 (3) ◽  
pp. 141 ◽  
Author(s):  
Esthela Salazar ◽  
Cristián Henríquez ◽  
Richard Sliuzas ◽  
Jorge Qüense
Keyword(s):  
Land Use ◽  
Urban Sprawl ◽  
Land Use Planning ◽  
Agricultural Land ◽  
Urban Expansion ◽  
Land Use Changes ◽  
Holistic Approach ◽  
Natural Areas ◽  
Risk Areas ◽  
Two Parameters

Peripheral urban sprawl configures new, extensive conurbations that transcend current administrative boundaries. Land use planning, supported by the analysis of future scenarios, is a guide to achieve sustainability in large metropolitan areas. To understand how urban sprawl is consuming natural and agricultural land, this paper analyzes land use changes in the metropolis of Quito, considering a combination of urban planning, natural conservation and risk areas. Using the Dyna-CLUE model we simulate spatial demands for future land uses by 2050, based on two growth scenarios: the trend scenario (unrestricted growth) and the regulated scenario, which considers two parameters—a government proposal for urban expansion areas and laws that protect natural areas. Both scenarios show how urban expansion consumes agricultural and natural areas. This expansion is backed by urban policies which do not sufficiently account for conservation areas nor for risk areas. Therefore, these simulations suggest that planning should follow a more holistic approach that explicitly considers urban growth beyond current administrative limits, in what we refer to as the New Metropolitan Area of Quito.

scholarly journals Monitoring and Forecasting of Urban Expansion Using Machine Learning-Based Techniques and Remotely Sensed Data: A Case Study of Gharbia Governorate, Egypt

2021 ◽  
Vol 13 (22) ◽  
pp. 4498
Author(s):  
Eman Mostafa ◽  
Xuxiang Li ◽  
Mohammed Sadek ◽  
Jacqueline Fifame Dossou
Keyword(s):  
Machine Learning ◽  
Urban Sprawl ◽  
Agricultural Land ◽  
Urban Expansion ◽  
Local Market ◽  
Agricultural Lands ◽  
Rapid Urbanization ◽  
Lulc Change ◽  
Lulc Changes ◽  
The Future

Rapid population growth is the main driver of the accelerating urban sprawl into agricultural lands in Egypt. This is particularly obvious in governorates where there is no desert backyard (e.g., Gharbia) for urban expansion. This work presents an overview of machine learning-based and state-of-the-art remote sensing products and methodologies to address the issue of random urban expansion, which negatively impacts environmental sustainability. The study aims (1) to investigate the land-use/land-cover (LULC) changes over the past 27 years, and to simulate the future LULC dynamics over Gharbia; and (2) to produce an Urbanization Risk Map in order for the decision-makers to be informed of the districts with priority for sustainable planning. Time-series Landsat images were utilized to analyze the historical LULC change between 1991 and 2018, and to predict the LULC change by 2033 and 2048 based on a logistic regression–Markov chain model. The results show that there is a rapid urbanization trend corresponding to a diminution of the agricultural land. The agricultural sector represented 91.2% of the total land area in 1991, which was reduced to 83.7% in 2018. The built-up area exhibited a similar (but reversed) pattern. The results further reveal that the observed LULC dynamics will continue in a like manner in the future, confirming a remarkable urban sprawl over the agricultural land from 2018 to 2048. The cultivated land changes have a strong negative correlation with the built-up cover changes (the R2 were 0.73 in 1991–2003, and 0.99 in 2003–2018, respectively). Based on the Fuzzy TOPSIS technique, Mahalla Kubra and Tanta are the districts which were most susceptible to the undesirable environmental and socioeconomic impacts of the persistent urbanization. Such an unplanned loss of the fertile agricultural lands of the Nile Delta could negatively influence the production of premium agricultural crops for the local market and export. This study is substantial for the understanding of future trends of LULC changes, and for the proposal of alternative policies to reduce urban sprawl on fertile agricultural lands.

Urban Expansion and Loss of Agricultural Land: A Remote Sensing Based Study of Shirpur City, Maharashtra

2017 ◽  
Vol 6 (1) ◽  
pp. 2097-2102
Author(s):  
Yogesh Mahajan ◽  
◽  
Shrikant Mahajan ◽  
Bharat Patil ◽  
Sanjay Kumar Patil ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Agricultural Land ◽  
Urban Expansion

Verdichten mit «Greening», oder was wir von Singapur lernen können (Essay)

2015 ◽  
Vol 166 (4) ◽  
pp. 219-222
Author(s):  
Urs Gantner
Keyword(s):  
Agricultural Land ◽  
Renewable Resource ◽  
Popular Participation ◽  
Botanical Gardens ◽  
Living Space ◽  
Urban Neighbourhoods ◽  
Mixed Use ◽  
City State ◽  
Vertical Greening ◽  
The City

Densification by greening, or what we can learn from Singapore (essay) Singapore, a city-state with a high population density, wants to give its population, its tourists and its economy a living and livable city and has developed the concept of the Garden City. Parks, nature reserves, forest, green corridors, trees, botanical gardens, horizontal and vertical greening of buildings, as well as popular participation, are all important for this vision of the city. Singapore is counting on dense construction alongside “greening” and biodiversity. Let us be prepared to learn from Singapore's example! Our land is also a non-renewable resource. To protect our ever more limited agricultural land, we should renounce any extension of building land, and free ourselves from the expanding carpets of suburban development. Let us build multiple urban neighbourhoods with mixed use and more biodiversity. Let us develop new types of communal gardens. Urban gardens in the widest sense – from private gardens to garden cooperatives, to parks and botanical gardens – are a part of our living space. The city should be our garden.

Impact of LULC Changes on LST in Rajshahi District of Bangladesh: A Remote Sensing Approach

2020 ◽  
Vol 3 (1) ◽  
pp. 11-23 ◽  
Author(s):  
Abdulla Al Kafy ◽  
Abdullah Al-Faisal ◽  
Mohammad Mahmudul Hasan ◽  
Md. Soumik Sikdar ◽  
Mohammad Hasib Hasan Khan ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Surface Temperature ◽  
Land Surface ◽  
Agricultural Land ◽  
Global Climate ◽  
Urban Expansion ◽  
Water Bodies ◽  
Landsat 8 ◽  
Lulc Changes ◽  
The Impact

Urbanization has been contributing more in global climate warming, with more than 50% of the population living in cities. Rapid population growth and change in land use / land cover (LULC) are closely linked. The transformation of LULC due to rapid urban expansion significantly affects the functions of biodiversity and ecosystems, as well as local and regional climates. Improper planning and uncontrolled management of LULC changes profoundly contribute to the rise of urban land surface temperature (LST). This study evaluates the impact of LULC changes on LST for 1997, 2007 and 2017 in the Rajshahi district (Bangladesh) using multi-temporal and multi-spectral Landsat 8 OLI and Landsat 5 TM satellite data sets. The analysis of LULC changes exposed a remarkable increase in the built-up areas and a significant decrease in the vegetation and agricultural land. The built-up area was increased almost double in last 20 years in the study area. The distribution of changes in LST shows that built-up areas recorded the highest temperature followed by bare land, vegetation and agricultural land and water bodies. The LULC-LST profiles also revealed the highest temperature in built-up areas and the lowest temperature in water bodies. In the last 20 years, LST was increased about 13ºC. The study demonstrates decrease in vegetation cover and increase in non-evaporating surfaces with significantly increases the surface temperature in the study area. Remote-sensing techniques were found one of the suitable techniques for rapid analysis of urban expansions and to identify the impact of urbanization on LST.

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