1980年代以来上海城市人口空间分布及其演变
发布时间：2018-11-12 16:11
【摘要】：研究人在城市中的居住活动的空间分布及其演变特征,有助于科学理性规划城市。采用上海市第三、四、五、六等4次人口普查数据,首先计算不同圈层的居住人口总量及其人口密度,并全过程地分析3个10年期的演变特征和趋势,发现在不同的城市空间层次,人口变化存在明显差异:在1980—1990年间增长的人口主要分布在核心区,在1990—2010年间增长的人口主要集中在边缘区和外围区,核心区的人口外迁而呈持续下降态势,在1990—2000年间边缘区人口增长快于外围区,但在2000—2010年间,外围区的人口总量增长幅度快于边缘区。其后,针对持续扩大的中心城区的人口密度分布及其变化,采用负指数函数模拟其分布曲线,发现在1990年代以来,体现距离衰减速率的参数b值持续在下降且速度较快,人口密度曲线持续趋于平缓,这潜在地说明居民克服空间阻力的能力在增强。最后,对上海城市居住活动在过去30年间的集聚和扩散所表现的规律性及其内在机制进行了讨论。
[Abstract]:It is helpful to scientifically and rationally plan the city by studying the spatial distribution and evolution characteristics of people's living activities in cities. Based on the data of the third, fourth, fifth and sixth censuses of Shanghai, the total resident population and its population density of different circles are calculated, and the evolution characteristics and trends of the three 10-year periods are analyzed. It is found that there are significant differences in population changes among different urban spatial levels: the population growth in 1980-1990 is mainly distributed in the core areas, and the population growth in 1990-2010 is mainly concentrated in marginal and peripheral areas. From 1990 to 2000, the population of the marginal region increased faster than that of the peripheral region, but the total population growth rate of the peripheral area was faster than that of the marginal region from 2000 to 2010. Then, in view of the population density distribution and its variation in the continuously expanding central city, the distribution curve is simulated by negative exponential function. It is found that the parameter b, which reflects the rate of distance attenuation, has been decreasing continuously since the 1990s and the speed is relatively fast. The population density curve continues to flatten, which potentially indicates that residents' ability to overcome spatial resistance is increasing. Finally, the regularity and internal mechanism of agglomeration and diffusion of urban residential activities in Shanghai in the past 30 years are discussed.
【作者单位】： 上海市城市规划设计研究院发展研究中心;
【分类号】：TU981;C922
本文编号：2327553
[Abstract]:It is helpful to scientifically and rationally plan the city by studying the spatial distribution and evolution characteristics of people's living activities in cities. Based on the data of the third, fourth, fifth and sixth censuses of Shanghai, the total resident population and its population density of different circles are calculated, and the evolution characteristics and trends of the three 10-year periods are analyzed. It is found that there are significant differences in population changes among different urban spatial levels: the population growth in 1980-1990 is mainly distributed in the core areas, and the population growth in 1990-2010 is mainly concentrated in marginal and peripheral areas. From 1990 to 2000, the population of the marginal region increased faster than that of the peripheral region, but the total population growth rate of the peripheral area was faster than that of the marginal region from 2000 to 2010. Then, in view of the population density distribution and its variation in the continuously expanding central city, the distribution curve is simulated by negative exponential function. It is found that the parameter b, which reflects the rate of distance attenuation, has been decreasing continuously since the 1990s and the speed is relatively fast. The population density curve continues to flatten, which potentially indicates that residents' ability to overcome spatial resistance is increasing. Finally, the regularity and internal mechanism of agglomeration and diffusion of urban residential activities in Shanghai in the past 30 years are discussed.
【作者单位】： 上海市城市规划设计研究院发展研究中心;
【分类号】：TU981;C922
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