Cities are the “engines of growth” because entrepreneurial and creative activities are concentrated in cities. This suggests that cities grow by hosting new businesses and “churning” industries advantageously. In so doing, cities need to adapt their spatial structure to mitigate negative externalities. Our previous paper (Lee and Gordon 2007) found that the links between urban structure and gro...

How is the organisational structure of urban environmental stewardship groups related to the diverse ways that civic stewardship is taking place in urban settings? The findings of the limited number of studies that have explored the organisational structure of civic environmentalism are combined with the research on civic stewardship to answer this question. By bridging these relatively disconn...

The first experimental SAM for Iran was constructed more than three decades ago under the supervision of Prof. Pyatt. Based on this work Prof Pyatt had observed that the way in which Iran was spending oil revenues was likely to exacerbate urban—rural income differentials in Iran. In his approach to SAM he did not distinguish between factorial and institutional income distributions preferring to...

Detecting regional spatial structures based on spatial interactions is crucial in applications ranging from urban planning to traffic control. In the big data era, various movement trajectories are available for studying spatial structures. This research uses large scale Shanghai taxi trip data extracted from GPS-enabled taxi trajectories to reveal traffic flow patterns and urban structure of t...

Abstract Urban transport plays an important role in low-carbon eco-city and energy conservation and emission reduction in the transport sector. Urban low-carbon transport system is a complex dynamic system including society, economy, motor vehicles, cars, transport infrastructure and other factors. This paper analyzes the complex dynamics relationship through building an urban low-carbon transp...

Studies of forests and urban forest ecosystems have documented the various biophysical and socioeconomic correlates of carbon storage. Tree cover in particular is often used as a determinant of carbon storage for local and national level urban forest assessments. However, the relationships among variables describing the biophysical and socioeconomic environment and carbon are not simple statist...

It has been suggested that the method of constructing an urban spatial structure typically follows a forward process from planning and design up to expression, as reflected in both graphic and text descriptions of urban planning. Although unorthodox, the original status structures can be extracted and constructed from an existing urban land-use map. This approach not only provides the methodolo...

The most rapidly expanding habitat globally is the urban habitat, yet the origin and life histories of the populations of native species that inhabit this habitat remain poorly understood. We use DNA barcoding of the COI gene in the widespread native pest ant Tapinoma sessile to test two hypotheses regarding the origin of urban populations and traits associated with their success. First, we det...

Tree leaf-associated microbiota have been studied in natural ecosystems but less so in urban settings, where anthropogenic pressures on trees could impact microbial communities and modify their interaction with their hosts. Additionally, trees act as vectors spreading bacterial cells in the air in urban environments due to the density of microbial cells on aerial plant surfaces. Characterizing ...

Urban underground space is an important non-renewable resource, and its value has increased in recent decades. Economic change and development is the most fundamental motive of evolution of the urban space, it also affected urban underground spatial development in a large degree. The paper try to analysis the urban economic affection in mechanism of evolution of urban underground space. The onl...