美 英 un.群体生长率;人口增长率 英汉 un. 1. 群体生长率 2. 人口增长率 例句 更多例句筛选
In 2023, China's natural population growth rate was a negative 1.48 per thousand people, with those aged 65 and above accounting for 15.4 percent of the total population. China's population development faces challenges from a declining birth rate, an aging population, and regional population dispa...
As far as the case study, while global models have satisfactorily explained population growth rates at a sufficiently detailed spatial level, the outcomes of quantile models often were in line with the results of global models. These outcomes were characteristic of the ‘urbanisation’ phase (1951...
These measures will start applying to newborns instead of those currently receiving subsidies, he explained, within the aim of controlling population growth rates. If the current high fertility rates, which reached 3.4 births per woman, continue, the number of Egyptians will reach 192 million by 20...
(RF) of each culture was calculated (Figure 2C) by taking the ratio of cell density of a given culture to the uninduced negative control averaged over the entire experiment, from 0 to 24 h, as explained in (Equation 8) to reflect the changes in population growth rate as well as in ...
In the first variant of the model there is no conflict between cells and regional populations fluctuate solely in response to the effect of climate variation on carrying capacity. As explained in theSI, we estimated the effect of climate on temporal variation in each simulation cell’s productivit...
The population of LDCs has grown from about 1.7 billion persons in 1950 to 4.8 billion persons today, at growth rates that have been at or above two percent for much of this period. While the rate of population growth in the world’s less developed regions has fallen since the 1960s and...
Most of the observed differences are explained by the slower decline in the fertility levels. The population growth rate peaked during 1971-81, perhaps in 1972-73 (based on the Sample Registration Scheme data). The average annual exponential growth rate declined marginally to 2.11 per cent (4.5...
(19%).The growth differences were not explained from size differences of the algae.The cyanobacteria Microcystis aeruginosa and Synechococcus elongatus depressed growth of B.calyciflorus not only as monospecific food but also in mixed diets with the good food source S.obliquus.The detrimental effect...
CAIRO (Reuters) - Population growth in Egypt, the Arab world's most populous country, slowed to 1.4% in 2023, its lowest rate in decades, the planning ministry said on Thursday. The need to limit population growth is a favourite theme of Egyptian President Abdel Fattah al-Sisi...