在中国的长江三角洲城市聚集区人口老龄化的时空空间演变
Lei Zhang1,2, Jie Tang2, Meisa Xu2
1Taizhou Hospital of Zhejiang Province, Zhejiang University, Taizhou, China.
PloS one
|February 15, 2024
概括
在中国的长江三角洲,人口老龄化正在加速,所有城市都变得过度老龄化. 本研究分析了2000年至2020年的老龄化趋势,强调了区域差异和政策的影响.
科学领域:
- 人口统计学 人口统计学
- 城市研究 城市研究
- 公共政策 公共政策
背景情况:
- 中国的长江三角洲城市聚集区 (YRDUA) 是一个关键的经济区域,面临着严重的人口老龄化.
- 了解衰老的空间和时间动态对于有效的政策响应至关重要.
研究的目的:
- 分析2000年至2020年YRDUA人口老龄化的空间和时间演变.
- 为解决中国人口老龄化问题提供数据驱动的见解.
主要方法:
- 构建一个多维指数系统来衡量人口老龄化 (程度,速度,密度).
- 对2000年至2020年城市级人口数据的分析.
- 检查关键指标:老年人口比率 (EPR),老年儿童比率 (ECR) 和老年人依赖率 (EDR).
主要成果:
- 所有27个YRDUA城市在2000年至2020年期间都过渡到超级老龄化状态.
- 老年人口率 (EPR) 和老年人依赖率 (EDR) 持续增加.
- 2010年以后,老年人与儿童比率 (ECR) 的增长放缓,这表明两孩政策的积极影响.
- 老年人人口密度在2000年至2020年间从低增至高增.
- 在各省和城市中观察到衰老过程的显著区域差异.
结论:
- 约尔杜亚正在经历人口快速和广泛的老龄化.
- 多维指数系统为评估衰老动态提供了一个强大的框架.
- 政策干预,比如两个孩子政策,对人口趋势有明显的影响.
- 解决人口老龄化的区域差异对于未来的规划至关重要.
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