نتایج جستجو برای: urban population growth

تعداد نتایج: 1600891  

2007
Xiangzheng Deng Jikun Huang Scott Rozelle Emi Uchida Helen F. Farnsworth

China is experiencing urbanization at an unprecedented rate over the last two decades. The overall goal of this paper is to understand the extent of and the factors driving urban expansion in China from the late-1980s to 2000. We use a unique three-period panel data set of high-resolution satellite imagery data and socioeconomic data for entire area of coterminous China. Consistent with a numbe...

2004
Jeffrey D. Kline David L. Azuma Ralph J. Alig

Private forestlands in the United States face increasing pressures from growing populations, resulting in greater numbers of people living in closer proximity to forests. What often is called the “wildland/urban interface” is characterized by expansion of residential and other developed land uses onto forested landscapes in a manner that threatens forestlands as productive socioeconomic and eco...

2013

The decentralization of industries and commercial activities has played an important role in the development of many cities in India. According to a report by Mckinsey Global Institute, by 2025 India will add 215 million people to its cities, whose population will account for 38 per cent of the country’s population. Urbanization of this magnitude will not only impact world economy but also the ...

Journal: :IJAEIS 2012
Lefteris A. Mantelas Poulicos Prastacos Thomas Hatzichristos Kostis Koutsopoulos

This paper presents a linguistic approach for modeling urban growth. The authors developed a methodological framework which utilizes Fuzzy Set theory to capture and describe the effect of urban features on urban growth and applies Cellular Automata techniques to simulate urban growth. Although several approaches exist that combine Fuzzy Logic and Cellular Automata for urban growth modeling, the...

Journal: :Indian pediatrics 2003
Shally Awasthi Siddharth Agarwal

The large and continuous increase in India's urban population and the concomitant growth of the population residing in slums has resulted in overstraining of infrastructure and deterioration in public health. The link between urbanization, a degraded environment, inaccessibility to healthcare and a deteriorating quality of life is significant and particularly evident in the sharp inequities in ...

Journal: :پژوهش های جغرافیایی (منتشر نمی‏شود) 0
محمد رضا پورمحمدی استاد گروه جغرافیا و برنامه ریزی شهری، دانشگاه تبریز فیروز جمالی استاد گروه جغرافیا و برنامه ریزی شهری، دانشگاه تبریز اکبر اصغری زمانی دانشجوی دکتری جغرافیا و برنامه ریزی شهری، دانشگاه تبریز

the complexity of urban systems in our recent world, make it difficult to evaluation and explanation of their changes with traditional and customarily methods. in the past, remote sensing has shown an ability to detect and describe urban growth patterns at different spatial scales. with new remote sensing devices (e.g. ikonos), with innovative image processing techniques and with further develo...

2008
Ivonne Audirac

Demographically, cities throughout the world seem to be expanding rather than shrinking. However a closer look at recent urban population change among the world’s largest urban agglomerations of one million people or more reveals that between 2000 and 2005, 30 out of 414 cities experienced zero to negative average annual growth (U.N. 2005). Recently, this internationalized pattern of city contr...

Journal: :Science 2008
David E Bloom David Canning Günther Fink

The proportion of a country's population living in urban areas is highly correlated with its level of income. Urban areas offer economies of scale and richer market structures, and there is strong evidence that workers in urban areas are individually more productive, and earn more, than rural workers. However, rapid urbanization is also associated with crowding, environmental degradation, and o...

2013
Marcus Berliant Ping Wang Jan Brueckner Masa Fujita Tom Holmes Tony Smith

The long-term trends of urbanization suggest: not only have more cities formed, but the leading metropolises have grown larger, with a number of peripheral subcenters developing over time. Conventional models of urban growth are limited, in that commuting cost and congestion eventually result in decreasing returns in a monocentric city as population becomes very large. We construct a general-eq...

Expended Abstract Introduction: Urban neighborhoods are a symbol of urban poverty and its spread over time, mainly due to over-migrations, economic fluctuations, the rapid growth of urbanization, and the neglect of the housing and shelter needs of low-income groups. The World Commission for the Future of Cities in the 21st Century warned that, as urban superlife grows, urban poverty in souther...

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