نتایج جستجو برای: urbanization expanse and population growth

تعداد نتایج: 17005538  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده منابع طبیعی 1392

nowadays, air pollution is a global problem that has had significant growth by technology development, population growth andindustrial development. industrial development brought natural resources deterioration, more manufacturing products, and more environmental pollutants. if pollutant won’t be controlled, human-being and wildlife will face the critical risks. significant release and critical...

Journal: :Environment & planning A 1996
J Shen N A Spence

"The population of China is still growing despite a dramatic decline in fertility in the past two decades. There are marked urban-rural differentials in fertility and, as a result, the pace of urbanization has significant effects on population growth. In this research an attempt is made to model urban-rural population growth in China. A demoeconomic model of urban and rural sectors is calibrate...

2018
Hyeon-Ju Gim Chang-Hoi Ho Jinwon Kim Eun Ju Lee

Regional warming, owing to urbanization, leads to earlier spring phenological events and may expose plants to hard freeze damage. This study examined the influence of urbanization on the risk of frost damage to spring flowers in South Korea from 1973 to 2015. For the analysis period, we categorized 25 cities into two groups: those showing rapid population growth (rPG) ≥ 200,000, including 13 ci...

Journal: :محیط زیست طبیعی 0
الهه اکبری عضو هیئت علمی گروه ژئومورفولوژی و اقلیم‏شناسی، دانشگاه حکیم سبزواری، کارشناسی ارشد سنجش از دور و gis، سبزوار، توحید شهر، دانشگاه حکیم سبزواری، دانشکدۀ جغرافیا و علوم محیطی، گروه جغرافیا معصومه فاخری کارشناسی ارشد اقلیم‏ شناسی، دانشگاه حکیم سبزواری عفت پورغلامحسن کارشناسی ارشد اقلیم‏ شناسی، دانشگاه حکیم سبزواری زهرا اکبری آموزگار منطقۀ 4 تهران

urbanization expanse and population growth, as well as pilgrim's possibility of some cities provide overuse of vehicles and consequently increased air pollution. thus by considering the importance of the impact of air pollution on human health, in this study, air pollution in terms of pm10 using psi standard index and inverse distance weighting is zoned in mashhad. on the other hand, meteo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...

2006
Barney Cohen

The purpose of this paper is to provide a broad overview of the recent patterns and trends of urban growth in developing countries. Over the last 20 years many urban areas have experienced dramatic growth, as a result of rapid population growth and as the world’s economy has been transformed by a combination of rapid technological and political change. Around 3 billion people—virtually half of ...

2001

Declines in fertility and population growth rates in the Pacific have lagged behind trends in other developing countries. In Pacific countries, most of which lack policy and public support for effective family planning and emigration outlets, rates of population growth remain among the highest in the world. The effect that high population growth rates have had in slowing economic growth appears...

2008
QI Lei

Harvey and Clark,1965; Gans,1967; Jackson,1985; Mills and Hamilton, 1994) in Western countries, especially in the United States. With the development of urbanization, on the edge of cities, the conversion of land to urban use became more and more severe and was out of control, mainly due to population growth, rising house-hold incomes and transportation improvements (Mieszkowski and Mills,1993;...

Bangladesh is still a low urbanized country although it experienced a rising trend in the level of urbanization throughout the twentieth century and had a remarkably high urban growth immediately after its independence in 1971. The country recorded the highest ever annual average growth rate (9.04) and percentage of interval variation (137.57%) in an urban population in 1974; thereafter, growth...

2010
Ravi Kanbur Margherita Comola Luiz de Mello

Indonesia went through a process of fiscal decentralization in 2001 involving the devolution of several policymaking and service delivery functions to the subnational tiers of government (provinces and districts). This process is likely to have affected regional patterns of urbanization, because the new prerogatives granted to the local governments have altered the distribution of urban ameniti...

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