| Literature DB >> 31835745 |
Yifan Zuo1,2, Liye Zou3, Mu Zhang2, Lee Smith4, Lin Yang5,6, Paul D Loprinzi7, Zhanbing Ren8.
Abstract
The purpose of this study is to explore the spatial distribution pattern and influencing factors of the Chinese marathon. Geographic Information System (GIS) related spatial analysis tools were used to calculate the following-averaged nearest neighbor index, nuclear density analysis and hot spot analysis among others. The spatial distribution evolution characteristics and the influencing factors of eighteen Chinese marathon events in 2010, 129 in 2015 and 342 in 2018 were analyzed. The results show that (a) in 2010 the nearest neighbor ratio was 1.164714, Moran's I was -0.010165 (type: Random), in 2015 it was 0.502146, Moran's I was 0.066267 (type: Clustered) and in 2018 it was 0.531149 and Moran's I was 0.083485 (type: Clustered); (b) in 2010 there was a 333.6 km search radius; the core circle of the Yangtze River Delta was adopted. In 2015 and 2018, a search radius of 556 km was adopted, which was respectively obtained from the core circle of the Yangtze River Delta, the core circle of Beijing-Tianjin-Hebei and the core circle of East China; (c) according to the Z-value data, East China and North China in 2015 passed 95% confidence in five provinces and municipal hot spots, passed 90% confidence in three hot spots and passed 95% confidence in Chongqing Cold Point. In 2018, East China, North China, Central Region and eight other provinces and cities' hot spots passed 95% confidence, four hot spots passed 90% confidence, the Tibet Autonomous Region cold spot passed 90% confidence.Entities:
Keywords: geographic information systems; marathon; spatial distribution; time and space evolution
Mesh:
Year: 2019 PMID: 31835745 PMCID: PMC6950243 DOI: 10.3390/ijerph16245046
Source DB: PubMed Journal: Int J Environ Res Public Health ISSN: 1660-4601 Impact factor: 3.390
Figure 1Number of marathons in different years and months. Data source: the official website of China Marathon (http://www.runchina.org.cn/).
Figure 2Marathons spatial distribution in 2010, 2015 and 2018. Data source: the Chinese Academy of Sciences Resource and Environment Science Data Center.
Cities that held more than 5 marathons/number of events/4 province tiers by the number of marathons.
| Number of Events | City | Number of Events | City |
|---|---|---|---|
| 12 | Beijing | 8 | Wuxi/Wuhan/Chongqing |
| 10 | Nanjing | 7 | Shanghai |
| 9 | Chengdu/Suzhou/Zhengzhou | 6 | Hangzhou/Kunming/Qingdao, Shenzhen |
|
| |||
| T-1 | Jiangsu | ||
| T-2 | Shandong, Henan, Anhui, Hubei, Zhejiang, Guangdong, Sichuan, Yunnan | ||
| T-3 | Hebei, Henan, Shaanxi, Jiangxi, Guangzhou, Fujian, Hainan, Heilongjiang, Jilin, Hunan, Inner Mongolia, Shanxi, Guizhou | ||
| T-4 | Xinjiang, Tibet, Ningxia, Liaoning | ||
Average nearest neighbor distance in 2010, 2015 and 2018.
| Year | ANND (km) | Nearest Neighbor Ratio | Type | ||
|---|---|---|---|---|---|
| 2010 | 345.92 | 1.164714 | 1.336896 | 0.181257 | Random |
| 2015 | 66.60 | 0.502146 | −10.817515 | 0.0000 | Clustered |
| 2018 | 61.28 | 0.531149 | −16.587427 | 0.0000 | Clustered |
Spatial autocorrelation in 2010, 2015 and 2018.
| Year | Moran’s I index | |||
|---|---|---|---|---|
| 2010 | −0.010165 | −0.541599 | 0.588095 | non-significant |
| 2015 | 0.066267 | 5.488973 | 0.000000 | 0.99 |
| 2018 | 0.083485 | 6.126412 | 0.000000 | 0.99 |
Figure 3Kernel Density Distribution of marathons in China in 2010, 2015 and 2018. Data source: the Chinese Academy of Sciences Resource and Environment Science Data Center.
Figure 4Hot spots distribution of marathons in China in 2015 and 2018. Data source: the Chinese Academy of Sciences Resource and Environment Science Data Center.
Comparison of hot spot analysis between 2015 and 2018.
| Years | Hot Spot 99% Confidence | Hot Spot 95% Confidence | Hot Spot 90% Confidence | Cold Spot 90% Confidence | Cold Spot 95% Confidence |
|---|---|---|---|---|---|
| 2015 | Jiangsu, Anhui, Henan, Liaoning | Beijing, Tianjin, Hebei | Chongqing | ||
| 2018 | Anhui | Jiangxi, Hubei, Henan, Shaanxi, Shandong, Jiangsu, Shanghai, Zhejiang | Shaanxi, Beijing, Tianjin, Hebei | Tibet |