Describing Urban Evolution with the Fractal Parameters Based on Area-Perimeter Allometry

Table 5

Comparisons between the square values of four possible models for the area-perimeter relationships of the cities and towns in Yangtze River Delta, China (1985–2005).

Year	Linear model	Exponential model	Logarithmic model	Power model
1985	0.747	0.372	0.793	0.928
1996	0.919	0.441	0.722	0.914
2005	0.939	0.439	0.626	0.888