Related Experiment Video
Updated: Aug 18, 2025
04:30
An Experimental Paradigm for Measuring the Effects of Ageing on Sentence Processing
Published on: October 25, 2019
5.7K
Spatial-Temporal Patterns of Population Aging in Rural China
Chan Chen1, Jie Li1, Jian Huang1
1School of Geographical Science, Guangzhou University, Guangzhou 510006, China.
International Journal of Environmental Research and Public Health
|December 11, 2022
Summary
China
Area of Science:
- Gerontology
- Demography
- Spatial Analysis
Background:
- China's population aged rapidly since the 1990s, with 190 million over 65 in 2020.
- Rural areas exhibit higher elderly population percentages (17.72%) compared to urban areas (11.11%).
- Significant spatial disparities in population aging exist across China.
Purpose of the Study:
- To investigate the spatial heterogeneity of population aging in rural China.
- To analyze the influencing factors behind these spatial-temporal patterns from 2000 to 2020.
Main Methods:
- Getis-Ord Gi* for spatial clustering analysis of the aged population.
- Standard deviational ellipse to track temporal trends in spatial clustering.
- Geographical Detector to identify key influencing factors.
Main Results:
- Rural population aging increased nationwide between 2000 and 2020.
- Spatial aging patterns align with China's Hu Line population density boundary.
- The aged population's center shifted northeast-to-southwest, diverging from migration flows.
- Population age structure, longevity, and fertility rates are primary drivers of rural aging.
Conclusions:
- Rural aging in China is increasing and spatially uneven.
- Collaborative efforts between government and private sectors are crucial to address this demographic shift.
Related Concept Videos
01:29Bone Disorders
3.8K
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
3.8K
01:19The Effect of Aging on Tissues
2.2K
Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
2.2K
00:57Population Growth
25.6K
Population size is dynamic, increasing with birth rates and immigration, and decreasing with death rates and emigration. In ideal conditions with unlimited resources, populations can increase exponentially, which plots as a J-shaped growth rate curve of population size against time. This type of curve is characteristic of newly-introduced invasive species, or populations that have suffered catastrophic declines and are rebounding.
25.6K
01:22Applications of Life Tables
103
Life tables are versatile across various fields, providing a quantitative basis for analyzing mortality and survival rates. Whether used by demographers, actuaries, epidemiologists, or sociologists, life tables offer valuable insights into the dynamics of life and death, facilitating informed decisions in public health, insurance, conservation, and beyond. Their broad applicability highlights the interconnectedness of demographic data with practical outcomes in everyday life and strategic...
103
01:26Aging
139
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
139
01:28Menopause
229
Menopause, a natural biological process marking the end of a woman's fertility, typically occurs between the fifth and sixth decade of life. This phase is characterized by the exhaustion of the ovarian follicle pool, leading to less responsive ovaries despite the high levels of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The consequential decrease in estrogen production results in symptoms like hot flashes, heavy sweating, headaches, hair loss, muscle pains, vaginal...
229