2005. Transmission Mechanisms of Population Aging Affects the Adjustment of Industrial Structure. Chinese Journal... 钟若愚 - 《中国人口科学》 被引量: 52发表: 2005年 人口结构变动对未来粮食需求的影响:2010-2050 China Population, Resources and Environment, 2013, 23(6): 117-121. (in Chinese with ...
In this study, we used microsatellite (SSR) loci derived from both expressed sequence tag (EST) and anonymous genomic sequence to explore the genetic diversity and population structure of A. nana in Xinjiang of China. Seven natural populations were collected across the whole distribution of A. ...
8. 用于描述人口结构和特征:population structure(人口结构),population distribution(人口分布),population composition(人口构成) 和population有关的英语谚语 和population 有关的英语谚语 1. 'The more the merrier.' - This proverb suggests that the larger the population, the more enjoyable and lively the atm...
Despite its ecological and economic importance, the genetic structure of native mitten crab populations is not well understood. In this paper, we investigated the genetic structure of mitten crab populations in China by screening samples from ten locations covering six river systems at six ...
Fundamental ecological information on theChinese kissing loach (Leptobotia tchangi)was collected in the North Tiaoxi River, China, in September 2010. Thelength-frequency distribution calculated using FiSAT software showed thepopulation structure of this kissing loach could be classified into four agegrou...
The Structure of China's Population年份:1984 期次:0506 栏目: FROM THE CHINESE PRESS 作者: 发布日期:1984-01-30页码: 38,39 全文: from "ZHEJIANG RIBAO" (Zhejiang Daily)THE structure of a nation's population generally falls into one of the three categories: increasing, decreasing and static.1...
species, is one of the most economically important domestic fruit tree in China. To effectively preserve and sustainably utilize this species, a study in genetic diversity and population structure was carried out by the sequence variation of chloroplast DNA trn Q- rps 16 intergenic spacers. ...
【Objective】The objective of the present study is to reveal the genetic diversity,specificity and population differentiation of the North China populations in common apricot(Prunus armeniaca L.).【Method】 A total of 21 simple sequence repeat(SSR) primers were used to detect the genetic variation...
To analyze the impact of the "two-child policy" on the population size and structure, first of all, the birth rate, the ratio of men and women, and the ratio of urban and rural population are used as indicators. Before and after the dispersion, then establish a PDE model, and compare...
is native to the northern part of China, but whose habitats are currently being destroyed by environmental changes and human deforestation. An investigation of population structure and genetic diversity of wild Ussurian pear is a priority in order to acquire fundamental knowledge for conservation. A ...