the theory of urban ecology is based on explaining urban spatial structure, studying and describing the reciprocal relationship between human societies in the urban areas and the environment, as well as analyzing the circumstances of urban population segregation and production of everyday life spaces. to study and explain urban ecological structure of mashhad, the case study of the article, we ...

This paper explores the development of an integrated urban-ecological simulation framework by linking two lines of urban and ecological simulation modeling. We propose a framework for linking the UrbanSim Model and the Urban Ecosystem Model, and describe the structure of the proposed approach. The model is object-oriented and links urban actors to ecological processes through a disaggregate spa...

Urbanization is a major driver of land use change and global environmental decline. With accelerated urbanization worldwide, it is essential to put in place new policies to conserve urban ecosystems, species and the services these provide in order to secure more sustainable, resilient and livable cities for the 21st century. In urban planning, the concept of resilience has broadly replaced the ...

Ecological security is an important research topic, especially urban ecological security. As highly populated eco-systems, cities always have more fragile ecological environments. However, most of the research on urban ecological security in literature has focused on evaluating current or past status of the ecological environment. Very little literature has carried out simulation or prediction ...

Among the myriad complications involved in the current food crisis, the relationship between agriculture and the rest of nature is one of the most important yet remains only incompletely analyzed. Particularly in tropical areas, agriculture is frequently seen as the antithesis of the natural world, where the problem is framed as one of minimizing land devoted to agriculture so as to devote more...

introduction   capability evaluation can be considered as a basic strategy for land use becausethe development synchronous with the naturecan be achieved by using identifying and assessing of the ecological characteristics of the area. agricultural land suitability classification based on indigenous knowledge is vital to land-use planning (ecological capacity evaluation). execution of developme...

inappropriate patterns and drastic changes in land-use have caused the severe environmental crisis. therefore, it is necessary to accomplish any plan in relation to establishment of different activities with respect to land capabilities and land-use evaluation thought. in this study, ecological capabilities and the site selection of land uses in babolrood basin, mazandaran province were evaluat...

introduction this study is dealt with the environmental planning from a bio-cybernetic and hierarchical systems viewpoint within the context of landscape ecology. this viewpoint requires not only knowledge of the science of ecology but also ecological wisdom in order to recognize the place of humankind in nature. the conceptual and practical approach which is provided will help landscape planne...

Corn ethanol production is central in the United States' agrofuels initiatives. In this paper I discuss corn ethanol production in Iowa, USA and examine several dynamics: farmers' positions in agrofuel supply chains; struggles around the construction and operation of agrofuel refineries; the politics of ethanol production and regulation; and the ecological consequences of increased corn product...

introduction urban planning is the process of influencing, controlling or directing changes in the use of land overtime and space in an urban area. therefore, it involves plan formulationand development control. to achieve this, concept of sustainable development must be addressed to remedy social inequities and environmental damage, while maintaining a sound economic base. the sustainable deve...