Land Use Planning for Development of Environmentally Sensitive Areas: Case Study of St. Martin's Island, Bangladesh

2010 ◽  
Vol 40 (4) ◽  
pp. 1079-1092 ◽  
Author(s):  
Sarwar JAHAN ◽  
J.M. QUAMRUZZAMAN
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Sensitive Areas ◽  
Environmentally Sensitive Areas ◽  
Environmentally Sensitive

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.

A Theoretical Basis for Managing Environmentally Sensitive Areas

1991 ◽  
Vol 18 (3) ◽  
pp. 211-218 ◽  
Author(s):  
Michael D. Jennings ◽  
John P. Reganold
Keyword(s):  
Land Use ◽  
Natural Resources ◽  
Land Use Planning ◽  
Scientific Basis ◽  
Hierarchy Theory ◽  
Sensitive Areas ◽  
Environmentally Sensitive Areas ◽  
The Pacific ◽  
Environmentally Sensitive ◽  
Privately Owned

While there has been considerable research and development in management of specific natural resources and public lands containing multiple resources, relatively little progress has been made concerning management of privately-owned resources through land-use planning at the local level of government. This paper examines the issue of local government policies and capabilities in land-use planning for privately-owned, environmentally-sensitive areas (ESAs) in the Pacific Northwest of North America. ESAs are defined as landscape elements that are vital to long-term maintenance of biological diversity, soil, water, and other natural resources—especially as they relate to human health, safety, and welfare, both on-site and in a regional context.A three-steps' approach of different geographical scales (i.e. watershed, state, and region) was used in a series of studies to facilitate examination of the relationship between political structure and ecological theory. When viewed collectively these studies showed that, while there is a political basis for regulating ESAs, attempts at regulation lack a theoretical and applied basis in systems-thinking and ecological science. To begin forging a stronger linkage between the political and scientific basis for ESA planning, two major ecological theories relevant to ESA management—hierarchy and subsidy–stress—were reviewed. These theories, when used in concert, were shown to be applicable in making objective choices concerning privately-held ESAs in the Pacific North-west. They can be used as a theoretical scientific basis for ESA planning, providing both qualitative and quantitative models. Hierarchy theory can provide guidelines for ESA planning by linking biophysical processes and patterns directly to appropriate scales of political jurisdiction. Subsidy–stress theory can be used to set specific performance standards that are needed in regulation of ESAs.As a result of our three-steps' approach at different geographical scales, four requisites for improving ESA planning were found: (1) definitions for natural resources should be standardized between regional districts, countries, states, and provinces; (2) replicative methods for ESA inventories, including natural communities and ecosystem processes, should be used; (3) a common environmental information system should be available to land-use planners; and (4) the expertise to apply such information should be available. The basis for these four items is found in the ecological systems theories of hierarchy and subsidy–stress.

Threats to environmentally sensitive areas from peri-urban expansion in Mauritius

2015 ◽  
Vol 42 (3) ◽  
pp. 256-267 ◽  
Author(s):  
D. S. HAMMOND ◽  
V. GOND ◽  
C. BAIDER ◽  
F. B. V. FLORENS ◽  
S. PERSAND ◽  
...  
Keyword(s):  
Urban Expansion ◽  
Bimodal Distribution ◽  
Spatial Proximity ◽  
Environmental Services ◽  
Tropical Islands ◽  
Sensitive Areas ◽  
Environmentally Sensitive Areas ◽  
Environmentally Sensitive ◽  
Global Growth

SUMMARYRapid population growth and economic change on the tropical islands of Mauritius have led to one of the highest rates of urban build-out in the world. Pressure on many of the island's natural features and resources increasingly risks further degradation to the environmental services that they provide to the country. Fourteen types of marine and terrestrial environmentally sensitive areas (ESAs) are critical to the nation's sustainable development. Twelve of these ESA types are currently at risk of degradation, owing to their spatial proximity to built-up areas (BUAs) and current use designation. There was a bimodal distribution in proximity; eight of the 12 ESA types analysed had an area-weighted modal peak < 500 m from the nearest BUA, and four ESAs had a modal peak 2–3 km from the nearest BUA. Six coastal and marine ESAs had limited protection from urban expansion and over-use. The Mauritian experience reflects trends that are emerging across many tropical developing countries, where the bulk of future global growth in urban area is expected to occur. The approach detailed in this case study is replicable and may be useful in assessing degradation risk as a result of urban expansion in other island countries.

scholarly journals ASSESSMENT OF ENVIRONMENTAL SENSITIVITY TO DESERTIFICATION WITH MEDALUS MODEL IN GIS IN MAYMONA PROJECT- SOUTH OF IRAQ

2021 ◽  
Vol 52 (4) ◽  
pp. 1058-1069
Author(s):  
Hamad & et al.
Keyword(s):  
Land Use ◽  
Information Systems ◽  
Geographic Information Systems ◽  
Soil Quality ◽  
Quality Index ◽  
Soil Quality Index ◽  
Sensitive Areas ◽  
Environmentally Sensitive Areas ◽  
Environmentally Sensitive ◽  
South Of Iraq

The objective of this study was to identify the locations sensitivity to land desertification based on the Mediterranean Desertification and Land Use (MEDALUS) approach by the Geographic Information Systems (GIS) in the south of Maysan governorate at Iraq for mapping environmentally sensitive areas to desertification. Three indicators, which included climate, vegetation, and soil, were employed to estimate the ESAI and then to classify the land in critical, fragile potentially, and non-influenced sensitive areas. The results of the soil quality index (SQI) indicated that 25% of the studied area was classified as moderate quality and 21% was low quality while 54% was very low quality. Vegetation qualities were classified into moderate and low quality 19% and 81%, respectively, and climate quality was classified as moderate.

scholarly journals SUSTAINABLE CITY PLANNING: EMPHASIS ON THE MANAGEMENT OF ENVIRONMENTALLY SENSITIVE AREAS

2007 ◽  
Vol 5 ◽  
Author(s):  
Halimaton Saadiah Hashim ◽  
Joy Jacqueline Pereira ◽  
Ibrahim Komoo
Keyword(s):  
Land Use ◽  
Sustainable Development ◽  
Life Support ◽  
Support Systems ◽  
Land Development ◽  
Well Being ◽  
Life Support Systems ◽  
Sensitive Areas ◽  
Environmentally Sensitive Areas ◽  
Environmentally Sensitive

The need to identify and manage environmentally sensitive areas (ESAs) is of fundamental importance for seeking balanced development within and around such areas based on the concept of sustainable development. The identification of ESAs enhances the understanding of the various trade-offs between land development, environmental protection and societal well-being, and this facilitates effective planning for future development. The concept of ESAs, which evolved from a sectoral approach at the international and national levels, was modified to be more integrated for its implementation at the city and state levels, even at national levels. The Selangor State Policy on ESA was officially launched on 5 June 1999. The Policy takes into account the importance of an area from the perspective of the implementing government agencies and the perspective of its major function in terms of providing life support systems, heritage value as well as risks associated with hazards. Integrated ESAs defines an area containing various ecosystems that play an important role in ensuring the well being of the environment as well as society which could be threatened by development. Three groups of ESAs are identified. These are ESA of Heritage Value, ESA associated with Hazards and ESA that is important for Life Support Systems. ESA of Heritage Value is defined as an area that has historical, cultural or scientific value. ESA associated with Hazards is defined as areas that are associated with high risks of natural or man-made hazards. ESA for Life Support Systems takes into account the present and future needs of society to ensure adequate quality of life based on resources available in the State. Integrated ESAs are useful to ensure land use that supports the aspirations of sustainable development and has the potential to enhance stakeholder participation, particularly when used in conjunction with existing land use planning mechanisms.

scholarly journals SUSTAINABLE CITY PLANNING: EMPHASIS ON THE MANAGEMENT OF ENVIRONMENTALLY SENSITIVE AREAS

2007 ◽  
Vol 5 (1) ◽  
Author(s):  
Halimaton Saadiah Hashim ◽  
Joy Jacqueline Pereira ◽  
Ibrahim Komoo
Keyword(s):  
Land Use ◽  
Sustainable Development ◽  
Life Support ◽  
Support Systems ◽  
Land Development ◽  
Well Being ◽  
Life Support Systems ◽  
Sensitive Areas ◽  
Environmentally Sensitive Areas ◽  
Environmentally Sensitive

The need to identify and manage environmentally sensitive areas (ESAs) is of fundamental importance for seeking balanced development within and around such areas based on the concept of sustainable development. The identification of ESAs enhances the understanding of the various trade-offs between land development, environmental protection and societal well-being, and this facilitates effective planning for future development. The concept of ESAs, which evolved from a sectoral approach at the international and national levels, was modified to be more integrated for its implementation at the city and state levels, even at national levels. The Selangor State Policy on ESA was officially launched on 5 June 1999. The Policy takes into account the importance of an area from the perspective of the implementing government agencies and the perspective of its major function in terms of providing life support systems, heritage value as well as risks associated with hazards. Integrated ESAs defines an area containing various ecosystems that play an important role in ensuring the well being of the environment as well as society which could be threatened by development. Three groups of ESAs are identified. These are ESA of Heritage Value, ESA associated with Hazards and ESA that is important for Life Support Systems. ESA of Heritage Value is defined as an area that has historical, cultural or scientific value. ESA associated with Hazards is defined as areas that are associated with high risks of natural or man-made hazards. ESA for Life Support Systems takes into account the present and future needs of society to ensure adequate quality of life based on resources available in the State. Integrated ESAs are useful to ensure land use that supports the aspirations of sustainable development and has the potential to enhance stakeholder participation, particularly when used in conjunction with existing land use planning mechanisms.

scholarly journals Assessment and mapping of desertification sensitivity with MEDALUS model and GIS – Case study: basin of Hodna, Algeria

2018 ◽  
Vol 36 (1) ◽  
pp. 17-26 ◽  
Author(s):  
Fouzia Boudjemline ◽  
Ahcene Semar
Keyword(s):  
Anthropogenic Factors ◽  
Risk Category ◽  
Mountain Areas ◽  
Area Index ◽  
Sensitive Areas ◽  
The North ◽  
Environmentally Sensitive Areas ◽  
Environmentally Sensitive ◽  
Low Sensitivity

AbstractIn Algeria, desertification risk is one of the main environmental and also social and economic problems. As much as 20 million hectares of northern Algeria are highly exposed and vulnerable to desertification with large areas falling into his ‘severe’ risk category, because the present massive destruction of vegetation and soils. This study aimed to use geographic information system (GIS) for mapping environmentally sensitive areas to desertification based on Mediterranean Desertification and Land Use (MEDALUS) approach in basin of Hodna, Algeria. Sensitivity is estimated with a modification of the MEDALUS environmentally sensitive area index (ESAI) which identifies such areas on the basis of an index (ESAI) that incorporates data on environmental quality (climate, vegetation, soil) as well as anthropogenic factors. This methodology allows the classification of land in critical, fragile and potentially sensitive areas. The results obtained show that 61% of the area is classified potentially sensitive to low sensitivity. These areas are particularly located in mountain areas. Spatially, the areas sensitive to degradation are as well in the lower region of the Hodna in Highlands consisting mostly of steppe route. The factors that could explain these variations of sensitivity are related mainly to changes in precipitation between the North and the South altitude and pressure of the population and livestock.

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