SCIENTIA GEOGRAPHICA SINICA ›› 2022, Vol. 42 ›› Issue (10): 1767-1777.doi: 10.13249/j.cnki.sgs.2022.10.009
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Gao Peng1(), Ning Yuemin2, He Dan2,3,4(
)
Received:
2021-06-15
Revised:
2021-12-22
Online:
2022-10-30
Published:
2022-10-20
Contact:
He Dan
E-mail:geogaopeng@163.com;hedan66@sina.com
Supported by:
CLC Number:
Gao Peng, Ning Yuemin, He Dan. Spatial Evolution and Interaction Effects of Multi-scalar Urban Networks in the Yangtze River Delta[J].SCIENTIA GEOGRAPHICA SINICA, 2022, 42(10): 1767-1777.
Table 1
Statistics of multi-scalar urban networks in the Yangtze River Delta
统计特征 | 统计指标 | 全球尺度 | 全国尺度 | 区域尺度 | ||||||||
2003年 | 2010年 | 2018年 | 2003年 | 2010年 | 2018年 | 2003年 | 2010年 | 2018年 | ||||
注:全国尺度数据来源于A股上市企业年报,未覆盖到中国香港、中国澳门、中国台湾相关城市数据;全球尺度数据来源于Bureau van Dijk数据库,覆盖到中国香港、中国澳门、中国台湾相关城市数据。 | ||||||||||||
网络规模 | 企业总部数量/家 | 181 | 1534 | 3312 | 444 | 966 | 2695 | 177 | 384 | 902 | ||
投资总额/亿元 | 989 | 6690 | 21943 | 839 | 3885 | 20726 | 201 | 1438 | 7936 | |||
节点数 | 97 | 253 | 409 | 182 | 256 | 322 | 41 | 41 | 41 | |||
边数 | 146 | 603 | 1182 | 498 | 1141 | 3082 | 179 | 345 | 667 | |||
密度 | 0.016 | 0.009 | 0.007 | 0.015 | 0.017 | 0.030 | 0.109 | 0.210 | 0.407 | |||
集聚程度 | 平均聚类系数 | 0.000 | 0.001 | 0.003 | 0.007 | 0.008 | 0.010 | 0.462 | 0.517 | 0.631 | ||
模块度指数 | 0.252 | 0.392 | 0.365 | 0.488 | 0.367 | 0.310 | 0.412 | 0.345 | 0.321 |
Table 2
The PVAR model estimated results of GMM method
GFC模型 | NFC模型 | RFC模型 | ||||||||
变量 | 系数 | Z值 | 变量 | 系数 | Z值 | 变量 | 系数 | Z值 | ||
注:*、**、***分别代表在10%、5%和1%的水平上显著;括号内为标准误;GFC、NFC、RFC分别表示全球功能联系、全国功能联系和区域功能联系;ΔGFC、ΔNFC、ΔRFC分别表示全球功能联系、全国功能联系和区域功能联系的1阶差分;全国尺度数据来源于A股上市企业年报,未覆盖到中国香港、中国澳门、中国台湾相关城市数据;全球尺度数据来源于Bureau van Dijk数据库,覆盖到中国香港、中国澳门、中国台湾相关城市数据。 | ||||||||||
ΔGFC | 0.803*** (0.000) | 5.740 | ΔGFC | 0.362* (0.053) | 1.931 | ΔGFC | −0.353* (0.068) | −1.110 | ||
ΔNFC | 0.537** (0.020) | 3.112 | ΔNFC | 0.604** (0.041) | 2.043 | ΔNFC | 0.431 (0.352) | 0.930 | ||
ΔRFC | 0.234*** (0.001) | 3.272 | ΔRFC | 0.246* (0.068) | 1.820 | ΔRFC | 0.981*** (0.000) | 4.831 |
Table 3
Variance decomposition of multi-scalar functional connectivity of cities in the Yangtze River Delta/%
期数 | GFC模型 | NFC模型 | RFC模型 | ||||||||
GFC | NFC | RFC | GFC | NFC | RFC | GFC | NFC | RFC | |||
注:GFC、NFC、RFC分别为全球功能联系、全国功能联系和区域功能联系;全国尺度数据来源于A股上市企业年报,未覆盖到中国香港、中国澳门、中国台湾相关城市数据;全球尺度数据来源于Bureau van Dijk数据库,覆盖到中国香港、中国澳门、中国台湾相关城市数据。 | |||||||||||
1 | 70.0 | 10.2 | 19.8 | 10.6 | 89.4 | 0 | 0 | 13.5 | 86.5 | ||
2 | 64.0 | 14.8 | 21.2 | 6.1 | 83.0 | 10.9 | 2.0 | 21.1 | 76.9 | ||
3 | 47.7 | 21.5 | 30.8 | 4.0 | 78.5 | 17.5 | 2.9 | 23.6 | 73.5 | ||
4 | 39.3 | 25.0 | 35.7 | 2.7 | 75.5 | 21.8 | 3.4 | 24.4 | 72.2 | ||
5 | 34.5 | 27.0 | 38.5 | 0.9 | 73.2 | 24.9 | 3.8 | 24.5 | 71.7 | ||
6 | 29.3 | 29.2 | 41.5 | 0.3 | 71.3 | 28.4 | 4.5 | 23.2 | 72.3 | ||
7 | 31.9 | 26.3 | 41.8 | 0.8 | 69.6 | 29.6 | 4.6 | 22.8 | 72.6 | ||
8 | 29.9 | 28.1 | 42.0 | 0.7 | 69.1 | 30.2 | 4.7 | 22.3 | 73.0 | ||
9 | 27.8 | 29.5 | 42.7 | 0.5 | 66.0 | 33.5 | 5.1 | 21.8 | 73.1 | ||
10 | 26.4 | 30.6 | 43.0 | 0.4 | 65.3 | 34.3 | 5.3 | 21.4 | 73.3 |
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