Table 1 The exponents of the United States, China and the six continents

From: Allometric scaling, size distribution and pattern formation of natural cities

Region

b

α

β

The United States

0.64

1.22

1.14

China

0.56

1.25

1.12

Africa

0.69

0.94

1.14

Asia

0.58

1.22

1.10

Australia

0.79

0.82

1.28

Europe

0.53

1.27

1.12

South America

0.79

0.81

1.13

North America

0.65

1.18

1.12

  1. Notes: b and α are parameters estimated from DGBD regression of the size distributions. β is the allometric exponent between lightness and area. All values are estimated by setting DNth=4 in 2009.