This paper examines the rapid urban growth in the city of Shenzhen with particular focus on urban economic growth, population growth, agriculture and environmental changes. With the rapid expansion of population and the builtup area, there is increasing demand for the provision of urban infrastructure. The volume of environmental pollution is also increasing. The problems of environmental pollu...

All life form on this planet depends on clean air. Air quality not only affects human health but also components of environment such as water, soil, and forests, which are the vital resources for human development. Urbanization is a process of relative growth in a country’s urban population accompanied by an even faster increase in the economic, political, and cultural importance of cities rela...

The process of land use change and urban sprawl has been considered as a prominent characteristic of urban development. This study aims to investigate urban growth process in Bandar Abbas city, Iran, focusing on urban sprawl and land use change during 1956-2012. To calculate urban sprawl and land use changes, aerial photos and satellite images are utilized in different time spans. The results d...

Cities often experience growth either physically, by population, or by a combination of both. Urban sprawl in recent times is a subject of popular debate between policy makers and environmentalists in context of the status of urban people and the state of the human ecology. With the high pace of social and economic development resulting growth of urban population, lack of infrastructure, conges...

Nearly all future population growth will occur in urban areas. Reducing urban poverty is crucial for managing urban population change. Internet and transportation networks link world cities and enhance urban economic growth. Founded in 1929, the Population Reference Bureau is the leader in providing timely, objective information on U.S. and international population trends and their implications...

Foresight Studies analyze emerging issues and trends with the objective of quantifying the research challenge and the potential impact for agricultural research. The past century has entailed a relatively speaking rapid redistribution as well as growth of urban populations, with the urban population surpassing the rural one for the first time in 2008. Processes of urban growth and their implica...

This paper describes an on-going work on the development and implementation of cellular automata based urban growth modeling using multitemporal satellite imagery. The algorithm is designed to simulate the historical growth as a function of local neighbourhood structure of the input data. Transition rules in the algorithm drive the urban growth over time. Calibration is introduced in the cellul...

focus on political, economic, cultural city of kermanshah, the reasons for moving to the city, and consequently, it is natural population growth. this part of the urban hierarchy rule out - as far and despite the high potential for job creation in the province are because of the unbalanced distribution of population, the potential of the whole province is not to be used, so that today we face t...

objective:  to evaluate the frequency of different psychiatric disorders among 7 to 12 years old children in urban areas of tehran. method: a sample of 799 children (6 to 11 years old) were selected from 250 clusters of the entire 22 municipality areas of tehran using a multistage sampling method from 250 clusters from the entire 22 municipality areas of tehran.. after responding to a persian v...

Although the urban transition is a universal event that unfolds in all countries, the determinants, patterns, and outcomes do not necessarily follow a uniform process. With the urban transition being basically completed in developed countries around the turn of the 21st century, the growth of cities today is almost entirely confined to developing countries. Still, much of our conceptual underst...