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hierarchical patch mosaic ecosystem model for urban landscapes: Model development and evaluation

Journal Articles & Books
Dezembro, 2013

Urbanization effects on ecosystem functions are both important and complex, characterized by scale multiplicity, spatial heterogeneity, and intensive human disturbances. Integrating the hierarchical structure of urban landscape pattern with ecosystem processes through simulation modeling can facilitate our understanding of human–environment interactions in urban environment.

Variation in the accuracy of thermal remote sensing

Journal Articles & Books
Dezembro, 2013

Thermal infrared (TIR) remote-sensing techniques have been used to estimate land surface temperatures (LSTs) and to study the relationship between land uses and LSTs. Remotely sensed thermal data provide a time-synchronized dense grid of temperature data, and there has been a growing interest on LSTs in various fields, such as urban climatology and global environmental change. It is also important for urban planning and management practices to maintain thermally efficient urban structures. This article focuses on differences between the estimated LSTs and the measured temperatures.

Wavelet Based Post Classification Change Detection Technique for Urban Growth Monitoring

Journal Articles & Books
Dezembro, 2013

Urban areas are the most dynamic region on earth. Their size has been constantly increased during the past and this process will go on in the future. Since there is no standard policy and guidelines for construction of buildings and urban planning, cities tend to have irregular growth. Many cities in the world face the problem of urban sprawl in its suburbs. So issues of urban sprawl need to be settled with the help of technologies such as satellite remote sensing and automated change detection.

Spatial–temporal patterns of urban anthropogenic heat discharge in Fuzhou, China, observed from sensible heat flux using Landsat TM/ETM+ data

Journal Articles & Books
Dezembro, 2013
China

The urban heat island (UHI) effect is the phenomenon of increased surface temperatures in urban environments compared to their surroundings. It is linked to decreased vegetation cover, high proportions of artificial impervious surfaces, and high proportions of anthropogenic heat discharge. We evaluated the surface heat balance to clarify the contribution of anthropogenic heat discharges into the urban thermal environment.

What Makes Socio-ecological Systems Robust? An Institutional Analysis of the 2,000 Year-Old Ifugao Society

Journal Articles & Books
Dezembro, 2013
Filipinas

Scholars have often puzzled over why ancient socio-ecological systems (SES) have collapsed or survived overtime. This paper examines the case of the 2,000-year old Ifugao SES in the northern Philippines and the contemporary challenges they now face. Five observations can be drawn. First, the Ifugao case does not fit some of the conventional theoretical explanations for the collapse or survival of SES.

Evaluation of ecosystem health for the coastal wetlands at the Yangtze Estuary, Shanghai

Journal Articles & Books
Dezembro, 2013
China

Despite the growing awareness of the important ecological functions and values provided by coastal and estuarine wetlands, wetland degradation continues worldwide due to increasing anthropogenic disturbances. Chongming Dongtan wetlands, adjacent to Shanghai, the largest city and industrial and trading port in China in rapid urban expansion and socioeconomic development are currently threatened with biodiversity reduction, wetland loss, contamination, and invasion of exotic plant.

Climate change, urban energy and planning practices: Italian experiences of innovation in land management tools

Journal Articles & Books
Dezembro, 2013

Climate change and energy saving are challenging the city and the territorial organization. Innovative spatial and urban planning methods and procedures are required, and new approaches and instruments must be elaborated and applied in order to shift from the building scale to the urban and territorial ones.

Urban expansion into a protected natural area in Mexico City: alternative management scenarios

Journal Articles & Books
Dezembro, 2013

Land use change is one of the main stress factors on ecosystems near urban areas. We analysed land use dynamics within Xochimilco, a World Heritage Site area in Mexico City. We used satellite images and GIS to quantify changes in land use/land cover (LULC) from 1989 to 2006 in this area, and a Markov projection model to simulate the impact of different management scenarios through to 2057. The results show an alarming rate of urbanisation in 17 years. LULC change runs in one direction from all other land use categories towards urban land use.

City Finances of Ulaanbaatar, Mongolia

Reports & Research
Training Resources & Tools
Dezembro, 2013
Mongólia
Ásia Oriental
Oceânia

Ulaanbaatar's (UB) population has swollen from half a million in 2001 to approximately 1.2 million in 2011, accounting for over 40 percent of the country's population. This trend is likely to continue as economic growth is increasingly concentrated in UB. With its growing population and concerns in rising inequality, the city is facing increasing pressure to maintain and expand service provision (especially infrastructure). The local tax on wages is expected to continue to provide substantial revenues to the UB government, which will assist the growing demand for services.

Multi-agent modeling for water policy impact assessment: a road map

Peer-reviewed publication
Dezembro, 2013

Water policies have a great impact upon different types of resources (water, land and soil resources; infrastructure and facilities; financial resources; environmental knowledge and information; etc.). They involve many individual or collective actors (users, managers, public or private companies, associations, etc.) as well as rules and norms of behavior that these actors are the recipients or agents. Complex systems, if any, these policies have several kinds of effects, expected and unexpected, direct and indirect effects, societal, economic, environmental and eco-systemic.

Periurban Land Redevelopment in Vietnam under Market Socialism

Journal Articles & Books
Dezembro, 2013
Vietnam

Starting in the 1990s, the Vietnamese state sought to expand and modernise the country’s urban system after four decades of anti-urban policies. This paper examines the reworking of the socialist land regime that followed from this shift. It begins by explaining how new legislation and institutions combined market and socialist principles to lure domestic enterprises into realising the state’s new urban ambitions. It then shows how this hybrid reordering of policy triggered local experiments with periurban land redevelopment and new forms of alliances between the state and private capital.

Self-sufficiency or surplus: Conflicting local and national rural development goals in Cambodia

Journal Articles & Books
Dezembro, 2013
Cambodja

Cambodia is currently experiencing profound processes of rural change, driven by an emerging trend of large-scale land deals. This article discusses potential future pathways by analyzing two contrasting visions and realities of land use: the aim of the governmental elites to foster surplus-producing rural areas for overall economic growth, employment creation and ultimately poverty reduction, and the attempts of smallholders to maintain and create livelihoods based on largely self-sufficient rural systems.