In terms of the center of gravity of distribution, the center of gravity of the HQD of China's city clusters shows a clear trend of "southward and westward" movement during the period of 2011–2021, specifically in Maanshan and Xinyang in Anhui Province, which belong to the Middle Yangtze city clusters.
← all excerpts
Exploring the temporal-spatial characteristics and determinants of high-quality development of city clusters in China.
2
—
—
The sentences
In terms of the distribution range, the ellipse area gradually narrowed from 2011 to 2016, and the ellipse area fluctuated and expanded after 2016, indicating that the level of HQD of city clusters showed a trend of agglomeration followed by diffusion because the 19 city clusters have gradually become new growth poles to support regional development, especially as the upper, middle, and lower reaches of the Yangtze River Economic Belt together constitute the east‒west axis of China's development, which has prompted the standard deviation ellipse to gradually move to the southwest.