Japan's declining population plays a role, too.
日本正在缩减的人口也扮演了一个角色。
Even in regions with declining population, we see substantial increase in the number of households.
他说：“即使在人口负增长地区，家庭数量的增长也相当可观。”
The number of yellow fever cases has increased over the past two decades due to declining population immunity to infection, deforestation, urbanization, population movements and climate change.
在过去二十年中，由于人群对疾病感染的免疫力下降、砍伐森林、城市化、人口流动和气候变化等因素的影响，黄热病病例数呈增加趋势。
This demonstrated deteriorating regeneration conditions and decreasing ability of spatial occupation of P. massoniana with succession—that P. massoniana had a declining population.
在群落的演替过程中，马尾松种群的空间占据能力不断下降，种群呈衰退趋势。
The analysis of height and base area classes of the shrub layer indicated mid-size individuals had conservative life strategies in this community, and R. simsii was a future declining population.
高度级和基径级分析表明群落内中等大小个体具有保守的生活史策略， 优势种杜鹃为远期衰退种群。
The analysis of height and base area classes of the shrub layer indicated mid-size individuals had conservative life strategies in this community, and R. simsii was a future declining population.
高度级和基径级分析表明群落内中等大小个体具有保守的生活史策略， 优势种杜鹃为远期衰退种群。
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