Scientists can also learn more about population growth from the census. In some years, the population grows faster than in others. Even in the same year, population growth is different in different places. Scientists can use the information to figure out what causes growth in certain years and...
D In 2021, the net population growth(人口净增长) of China was only 480, 000, the lowest over the last 60 years. And all the signs show that Chin a will see negative population growth in the near future. It has to be pointed out that Chin a is still a developing country, and nega...
KG Deng - Mapping China's Growth and Development in the Long Run, 221 BC to 2020 被引量: 4发表: 2015年 Urbanization in Southern Etruria from the Tenth to the Sixth Century BC: The Origins and Growth of Major Centers The narrative of China's history in this book is 'theme-led' rather...
9 RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook population pyramid Also found in:Dictionary,Thesaurus,Medical,Financial,Wikipedia. Fig. 25Population pyramid.The above example represents the age structure of Scotland in 1976. ...
Interpretation Health trends in the next 25 years will be determined mainly by the ageing of the world's population, the decline in age-specific ... Christopher,JL,Murray,... - 《Lancet》 被引量: 1.5万发表: 1997年 Age structure effects and growth in the OECD, 1950-1990 Economic growth ...
In China, this species is mainly found in Yunnan, Sichuan, Qinghai and Xizang. In recent years, as the ecological environment in Qinghai continued to improve, the number and species of migratory birds monitored in the province registered steady growth.■...
The Demographic Future: What Population Growth-and Decline-Means for the Global Economy The demographic future: what population growth --and decline-- means for the global economy. Foreign Affairs.The Demographic Future: What Population Growth - and Decline - Means for the Global Economy[J] . Eb...
These are the putative Glaucous-winged Gull Larus glaucescens in the Home Counties in late winter/early spring 2009, and the series ... PA Fraser,C Bradshaw,N Hudson,... 被引量: 51发表: 2007年 加载更多研究点推荐 POPULATION-GROWTH GLAUCOUS-WINGED GULL LARUS-GLAUCESCENS 引用走势 2015 被引...
Demographers are often interested in the environmental impacts of population growth. I examine the impact of growth specifically on air quality in California. In recent decades, California has suffered from notoriously polluted air and has experienced rapid population growth. Despite the population growth...
What was the population in 10,000 BC? 200 years ago there were less than one billion humans living on earth. Today, according to UN calculations there are over 7 billion and projected in 2100 it will be around 11 billion with the growth rate of 2.1. At 1 BC the the population expected...