Modelling land use change impacts for sustainability assessment

2011 ◽  
Vol 11 (1) ◽  
pp. 1-3 ◽  
Author(s):  
Sandrine Petit ◽  
Pia Frederiksen
2020 ◽  
Vol 12 (5) ◽  
pp. 2018 ◽  
Author(s):  
Eric Vaz

Background: Land-use change, resulting from urban expansion, has led to the unprecedented importance of rethinking our interactions with the environment in general. The consequences of anthropogenic activity on natural land, as well as sustainable land use types, is a significant concern to the detriment of small towns. In this article, I assess the changes in the urban footprint morphology of Northumberland County while evaluating the consequences of urban fragmentation on archaeological sites. Northumberland has a total population of 85,598 divided into seven municipalities and the Alderville First Nation reserve. Northumberland County is a commuting distance of one hour from Toronto, one of North America’s most important economic hubs. It is of the highest importance to measure and understand the current characteristics of land-use change and its impacts on the sustainability of small towns and local communities. Methods: A total of archaeological sites are used to test the impacts of urbanization and land-use change throughout the perimeter of Northumberland county. Spatial analysis is conducted employing spatial autocorrelation techniques (global and local) to assess the existence of hotspots of archaeological sites and the potential endangerment of these sites due to urban pressure. A hexagonal topology is used to derive a regional understanding of impacted regions within the county, allowing the richness of archaeological heritage sites as well as the possible concerns of these spatial clusters to be examined. Results: It is shown that a significant number of archaeological sites are present in Northumberland county, with a clear indication of a hotspot around Rice Lake. Future urbanization as well as land-use fragmentation may have an impact on the sustainability of these archaeological sites. It is shown that hexagonal geometries may establish relevant spatial surfaces to compare urban and archaeological sites as criteria to understand the endangerment of archaeological sites. The availability of the Global Urban Footprint (GUF) creates a particularly rigorous framework for the detection of impact on archaeological sites. Conclusion: The findings suggest that archaeological sites in small towns can benefit from high-resolution urban land-use footprints to detect impacts on archaeological sites and the relations of land-use change and intrasite management. This is of utmost importance in times of significant anthropogenic change brought by increasing urban pressure on small and medium-sized towns.


Energy Policy ◽  
2011 ◽  
Vol 39 (10) ◽  
pp. 5703-5716 ◽  
Author(s):  
Arnaldo Walter ◽  
Paulo Dolzan ◽  
Oscar Quilodrán ◽  
Janaína G. de Oliveira ◽  
Cinthia da Silva ◽  
...  

2011 ◽  
Vol 13 (02) ◽  
pp. 251-284 ◽  
Author(s):  
E. GUNILLA ALMERED OLSSON ◽  
KATRINA RÖNNINGEN ◽  
SUSANNE K. HANSSEN ◽  
SÖLVI WEHN

The decline and restructuring of agriculture is particularly evident in mountain areas, leading to forest recolonisation on former mountain pastures threatening biodiversity and landscape qualities, and the appeal of the mountain landscape for recreation and tourism. Land use change scenarios based on different agri-environmental incentives were developed for the Jotunheimen mountains, Norway, in collaboration with local stakeholders. Sustainability assessments of the scenarios underscored the connections between landscape, biodiversity and local cultural heritage as the fundament for the development of local enterprises for tourism and niche production. Biodiversity values solely, were not considered to be of major importance by the stakeholders.


Author(s):  
Verónica Lango-Reynoso ◽  
Karla Teresa González-Figueroa ◽  
Fabiola Lango-Reynoso ◽  
María del Refugio Castañeda-Chávez ◽  
Jesús Montoya-Mendoza

Objective: This article describes and analyzes the main concepts of coastal ecosystems, these as a result of research concerning land-use change assessments in coastal areas. Design/Methodology/Approach: Scientific articles were searched using keywords in English and Spanish. Articles regarding land-use change assessment in coastal areas were selected, discarding those that although being on coastal zones and geographic and soil identification did not use Geographic Information System (GIS). Results: A GIS is a computer-based tool for evaluating the land-use change in coastal areas by quantifying variations. It is analyzed through GIS and its contributions; highlighting its importance and constant monitoring. Limitations of the study/Implications: This research analyzes national and international scientific information, published from 2007 to 2019, regarding the land-use change in coastal areas quantified with the digital GIS tool. Findings/Conclusions: GIS are useful tools in the identification and quantitative evaluation of changes in land-use in coastal ecosystems; which require constant evaluation due to their high dynamism.


Author(s):  
H. Lilienthal ◽  
A. Brauer ◽  
K. Betteridge ◽  
E. Schnug

Conversion of native vegetation into farmed grassland in the Lake Taupo catchment commenced in the late 1950s. The lake's iconic value is being threatened by the slow decline in lake water quality that has become apparent since the 1970s. Keywords: satellite remote sensing, nitrate leaching, land use change, livestock farming, land management


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